000-911 exam Dumps Source : System and Administration: Informix Dynamic Server
Test Code : 000-911
Test name : System and Administration: Informix Dynamic Server
Vendor name : IBM
: 142 existent Questions
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July 05, 2007 12:00 ET
New Server Studio and Sentinel R. 6.1 to permit quick Adoption of IDS 11 "Cheetah"
ARMONK, ny and ny, large apple--(Marketwire - July 5, 2007) - IBM (NYSE: IBM) and AGS Ltd., a privately held purveyor of management solutions for facts servers, these days introduced that the modern Server Studio and Sentinel R. 6.1 -- the essential suite of integrated gadget administration apparatus for IBM Informix Dynamic Server (IDS) -- is now accessible, with variants offered by means of both IBM and AGS.
The IDS statistics server is a strategic point of IBM's information management application portfolio and the these days announced IDS 11 -- code named Cheetah -- delivers multiplied efficiency, reliability and scalability, together with the means to address huge volumes of advanced statistics at very extravagant speeds. IDS eleven is additionally the business's first data server to deliver clustered data centers with interminable facts availability and catastrophe healing despite the geographic locality or distance between backup statistics middle websites.
Server Studio and Sentinel together kind a magnificent infrastructure of multi-platform apparatus that assist both pro database professionals and beginners alike manage IBM Informix facts server environments with an unheard of ease and productiveness. autochthonous assist of IDS 11 modern performance within the liberate 6.1 of Server Studio and Sentinel further enhances capacity to deliver most efficient efficiency, availability and maintainability of Informix databases during their all operational being cycle.
"Our long-term partnership with AGS underscores IBM's steadfast commitment to offering IDS customers with the performance optimization, availability and compliance administration solutions they need," referred to Bernie Spang, director IBM statistics servers. "the modern liberate 6.1 of Server Studio and Sentinel will aid present protection to the funding that their shoppers hold made of their Informix statistics server infrastructures."
the flexibility, affluent performance and ease-of-use provided through Server Studio and Sentinel construct on the legendary reliability and simple administration of IDS. the brand modern instrument set provided by using AGS helps businesses and companies build positive that crucial database purposes remain up and effect at height ranges, enabling them to conveniently control alternate, manipulate regulatory compliance and guarantee availability of essential enterprise tips.
bank of the usa currently chosen Server Studio and Sentinel for its IDS environment -- one of the most world's largest disbursed data facilities processing on-line fiscal transactions.
"The latest free up of Server Studio and Sentinel give a group of built-in, highly productive device management tools that developers and DBAs working with IBM's Informix records servers hold been traumatic and awaiting. Informix now has very powerful graphical apparatus that exceed the capabilities of autochthonous and third celebration offerings purchasable for any other database platform. brace this with spectacular technical assist and too you Get items with incredible expense and a short ROI," pointed out Kevin Kleinhomer, vice chairman at monetary institution of the usa. "In their enormous distributed environment, Server Studio and Sentinel hold simplified and automated many DBA tasks. With these additions, IBM's Informix information servers hold been made greatly simpler to manage and monitor."
Server Studio gives a finished assortment of effortless-to-use, proven tools for DBAs and developers that increase efficiency of performing unbiased database projects similar to: SQL construction and debugging, schema management, configuration auditing and change management, performance tuning, information storage management and reorganization, safety administration and extra -- replete from an built-in graphical console that unites construction, administration and protection actions for a all Informix infrastructure at a principal ingredient of manage.
Sentinel provides 24 × 7 operational monitoring, alerting, concern discovery, analysis and autonomic response automation infrastructure for IBM Informix statistics servers' ambiance. it subsist simple to deploy agent-much less structure equips DBAs with sophisticated diagnostics and remediation facilities which aid pinpoint and unravel the underlying explanations of performance bottlenecks and elements competition issues that adversely hold an result on databases' availability and influence conclude clients.
Smaller businesses and businesses that would not hold significant IT staffs to manipulate colossal information servers infrastructure hold additionally benefited from the mighty application construction and administration capabilities offered by means of IDS and Server Studio.
"As a software developer and DBA, Server Studio is a device that i engage odds of day by day, and it's exactly what I require from my tools -- good, legit, and strong," mentioned Sean Durity, manager of IT for CornerCap investment information. "Even the 'small' elements of Server Studio are huge timesavers. I cannot believe about working with Informix and not the utilize of Server Studio. I may not labor with anything less."
the relationship between AGS and IBM replete started in 2000 when IBM replete started distributing AGS' Server Studio as the fundamental database pile and administration apparatus suite with Informix data servers. Product management, engineering and QA teams of both agencies labor intently on product direction, know-how construction and QA checking out of Server Studio and Sentinel.
"we are pleased with and significantly expense their strategic partnership with IBM. option of AGS facts servers' management solutions by using IBM is a testament to their industry-leading know-how," celebrated Anatole Vishon, CEO of AGS Ltd. "We account the a must-have magnitude of Informix, particularly in the retail, fiscal, telecommunications, healthcare, govt and SMB sectors. AGS is committed to supporting existing capabilities and establishing modern technologies for Informix facts servers so as to add expense for IBM shoppers."
Pricing and Availability
The liberate 6.1 of Server Studio and Sentinel can subsist institute now through IBM and AGS international. The Core edition of Server Studio is equipped by means of IBM to Informix customers at no further charge. Its fundamental functionality will too subsist extended by means of buy of numerous top rate versions obtainable without retard from AGS.
additional information about Server Studio is accessible at: http://www.ibm.com/utility/statistics/informix/serverstudio/, or http://www.serverstudio.com/items/serverstudio/
more information about Sentinel is available at: http://www.ibm.com/software/facts/informix/sentinel/, or http://www.serverstudio.com/products/sentinel/
additional information about Informix Dynamic Server is available at: http://www.ibm.com/application/information/informix/ids/
AGS, Server Studio and Sentinel are logos or registered logos of superior international programs, Ltd. For an inventory of extra AGS trademarks, gratify notice http://www.ags.com
IBM, Informix Dynamic Server and the IBM e-enterprise emblem are emblems or registered emblems of overseas enterprise Machines service provider. For a list of extra IBM trademarks, gratify notice www.ibm.com/legal/copytrade.shtml
All different company, product or provider names may subsist trademarks or registered logos of others. Statements regarding IBM's future pile plans and schedules are made for planning applications most effective, and are locality to exchange or withdrawal devoid of subsist aware. Reseller fees may additionally fluctuate.
Feb 18, 2019 (Heraldkeeper by course of COMTEX) -- long island, February 19, 2019: The fleet administration market is expected to attain US$ fifty one.5 Billion by means of 2024; growing to subsist at a CAGR of greater than 23.50% in the given forecast period.
this may quit any deceptive messing with them. it's going to likewise compose a proper assist plan.within the sentiment of fleet administration, monitoring a car has two implications. The simple magnitude is preserving replete and an accurate record of every thing which concerns that car, from gasoline stops to any upkeep, whether it’s a driver fitting an extra fan belt out and about in a calamity or a replete administration. here's simple so peculiarities may too subsist diagnosed and wondered. The 2nd significance basically is aware of the plot cars are. This responsibility has been made plenty simpler since the innovation of GPS and discharging it for open use.
Fleet Managements project is a set of responsibilities which is required to maintain fleet of vehicles working effectively. The principal accountability of any fleet administrator is to grasp what is truly in their fleet at any given time. this could no longer best just implies that the fleet administrator should hold a checklist of replete motors moreover but too may soundless hold in an ideal world that they must hold a checklist of the entire serial portions of the diverse key elements which establish with each and every of their vehicles.
Browse replete record: https://www.marketresearchengine.com/reportdetails/fleet-administration-market-file
The Fleet management Market has been segmented as beneath:
The Fleet management Market is segmented on the groundwork of reply type, Deployment type, carrier class, Connectivity category, perpendicular analysis and Regional analysis. by using solution classification this market is segmented on the groundwork of Driver management, Asset administration and Operation administration.
by Deployment kind this market is segmented on the basis of Hybrid, On premises and Cloud. via provider category this market is segmented on the foundation of Managed functions, Integration and deployment carrier and Managed capabilities. by means of Connectivity classification this market is segmented on the foundation of mobile device and satellite tv for pc device.
via perpendicular analysis this market is segmented on the groundwork of construction, RetailEnergy and utilities, Transportation and logistics, govt and Manufacturing. by course of Regional analysis this market is segmented on the groundwork of North the usa, EuropeAPAC and leisure of the area.
This report offers:
1) an overview of the world marketplace for fleet management and linked applied sciences.2) Analyses of global market trends, with information from 2015, estimates for 2016 and 2017, and projections of compound annual boom costs (CAGRs) via 2022.three) determine the brand modern market alternatives and targeted promotional plans for fleet administration.four) discussion of research and building, and the require for brand spanking modern items and modern purposes on the facts purchasable.5) finished trade profiles of predominant players in the trade to explore further viable gains.
Request pattern document from right here: https://www.marketresearchengine.com/reportdetails/fleet-management-market-record
desk of Contents
2 research Methodology
3 govt summary
four premium Insights
4.1 appealing Market opportunities in the Market4.2 Market with the aid of solution, 2016-20214.3 Fleet management Market: proper capabilities and Solutions4.four Lifecycle analysis, by means of Region4.5 Market funding scenario
5 Fleet administration Market Overview
6 industry trends
7 Fleet administration Market evaluation, by using Deployment class
8 Fleet administration Market analysis, by means of solution
9 Fleet management Market analysis, via Connectivity technology
10 Fleet administration Market analysis, with the aid of provider
eleven Fleet administration Market evaluation, by Vertical
12 Geographic analysis
13 competitive landscape
14 trade Profiles
14.2 AT&T, Inc.
14.3 Cisco techniques, Inc.
14.4 Fleetmatics group PLC
14.5 IBM organization
14.6 Verizon Communications, Inc.
14.7 I.D. methods, Inc.
14.eight Trimble Navigation restrained
14.10 Zonar methods
14.11 Workwave LLC
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international Fish Finder device Market Key avid gamers, Share, developments, sales, Segmentation and Forecast through 2023
circulate Battery Market measurement is Projected to subsist round US$ 1.09 Billion by course of 2024
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large Blue too discloses plans to integrate its DB2 and Informix Dynamix Server product lines in future types of both products
IBM introduced the first beta of Stinger remaining fall, followed in can too by means of a public beta preview. The ensuing DB2 eight.2 database—packing a bevy of efficiency and availability points, together with modern autonomic capabilities—will become often attainable this Friday.
For the list, large Blue eventual delivered an enormous DB2 UDB supplant (edition eight.1) in November 2002—just weeks after it kicked off its eBusiness-On-Demand computing method.
In light of IBM’s constant accent on utility or “on-demand” computing, then, it’s now not surprising that officials had been anxious to tout the autonomic credentials of the modern database. “These [autonomic] capabilities are via a long course the leading factor [of the DB2 8.2 release],” says Jeff Jones, director of approach for IBM’s data management options. “The concept is that with these [autonomic] capabilities, fewer DBA elements are required, and the DBA is allowed to enact other things, like probably participate greater at design time, like greater order detective work.”
Jones says that the revamped database will build it less demanding for DBAs to install, configure, keep, and optimize DB2 databases on the fly. during this appreciate, officers factor to superior types of tools such as DB2 Configuration marketing consultant and DB2 Design guide, which provide DBAs a wizard-like interface to customise DB2 for different application and information warehousing necessities. Configuration marketing consultant, for example, asks questions on what kind of utility a DBA plans to roll out and the course many clients she expects to assist, after which tunes DB2 for this reason.
similarly, the modern Design advisor lets DBAs extra simply tune DB2 because the database workload alterations, automate adjustments to the database constitution, and effect tasks such as database backup and restoration. Jones says it may well subsist specially helpful in complicated-query environments.
one of the vital largest modern features in the revamped DB2 is in keeping with expertise IBM developed for its gaining learning of Optimization (LEO) analysis and pile venture. in line with Jones, LEO helps to automate, simplify, and accelerate queries without requiring a DBA’s attention. The LEO technology additionally offers up-to-date query facts about database use, storage, and efficiency.
nonetheless a different modern characteristic is what IBM calls query Patroller, which introduces a query-based chargeback facility. “It lets you really computer screen [and] engage note the saturate of queries, so you can enact things like chargeback. you can basically motif how a considerable deal query time these departments are the utilize of and saturate them for it,” mentioned Paul Rivot, global director of database servers at IBM, in an interview this may.
in other places, DB2 8.2 boasts a modern characteristic called Autonomic protest preservation that automatically performs administration and upkeep features, corresponding to table alterations or facts backups.
in replete probability fantastically, IBM’s DB2 eight.2 unencumber borrows heavily from applied sciences already blanketed within the Informix Dynamix Server, the thing-relational information shop IBM obtained with the purchase of Informix in 2001. for example, says Jones, the modern edition of DB2 aspects a capacity referred to as Autonomic excessive-Availability-catastrophe-restoration (HADR) with autonomic client reroute, which supports computerized excessive-availability, catastrophe healing and customer reroute for clustered environments.
“We’re hugely automating the assignment of developing failover pairs, lower back up methods, to fail to when a prime gadget dies,” he explains. “This became doable in the past with DB2, but it become fairly slightly more guide. turns out that Informix has a existent rich, existent efficient capability, so they decided, let’s Get this going on DB2, as a result of this can vastly repercussion DB2.”
HADR gives a wizard-like interface that lets DBAs “construct and installation this [clustering] capacity and additionally the automated client re-route and the precise mechanical failover capabilities that are very quick and intensely computerized once whatever fails,” says Jones.
On the BI entrance, Jones says, DB2 8.2 points an extra contribution from Informix Dynamix Server. “The different is the Geodetic Extender it really is an present aspect known as the Geodetic information Blade,” he confirms. because of its Geodetic Extender part, DB2 8.2 can deliver third-dimensional geospatial statistics that's each place- and time-and-house-aware. This duty should enchantment basically to clients in distinct verticals (govt, protection, and transportation, together with restaurant chains and retailers) that on occasion utilize spatial facts to identify modern company opportunities, officers say.
somewhere else in BI additions, Jones says consumers can utilize DB2 cube Views to define OLAP-centric metadata—including hierarchies, dimensions, attributes, and enterprise guidelines or formulas—and shop it as a pellucid extension to DB2. within the revamped eight.2 unlock, this expertise has been tweaked to raise question performance.
DB2 and Informix Dynamix to Merge in Subsequent Revisions
IBM at the minute keeps part pile groups for DB2 UDB and Informix Dynamix, but Jones says huge Blue has plans to merge both product strains in the future. “we hold the luxurious of having two pile teams innovating simultaneously and sharing their improvements with one one more, with the most efficient direct of having the subsequent edition of DB2 and the next version of Informix Dynamix Server eddy out to subsist being the equal issue,” he asserts.
Jones features to IBM’s existing interoperability labor with both facts retailers, together with pass-statistics-type aid and SQL standardization, which, he says, will build it feasible emigrate from side to side between the two information stores. “The approach then is to aid Informix Dynamix Server and raise it via person requirements, however try this with a interminable eye to getting closer and closer to regular functionality with DB2,” says Jones, who provides “that is a means off.”
in the close-term, says Jones, IBM will proceed to guide latest Informix Dynamix customers. “Informix Dynamic Server remains turning out to subsist and being superior. they now hold the Informix team nonetheless working on it, and we're assisting the Informix customer base,” he asserts.
IBM presents Public Preview of “Stinger” DB2http://www.esj.com/information/article.asp?editorialsId=954
IBM Database update activities BI-friendly Featureshttp://www.esj.com/business_intelligence/article.asp?id=7058&t=y
Stephen Swoyer is a Nashville, TN-based mostly freelance journalist who writes about technology.
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July 05, 2007 12:00 ET
New Server Studio and Sentinel R. 6.1 to Enable Rapid Adoption of IDS 11 "Cheetah"
ARMONK, NY and modern YORK, NY--(Marketwire - July 5, 2007) - IBM (NYSE: IBM) and AGS Ltd., a privately held purveyor of management solutions for data servers, today announced that the modern Server Studio and Sentinel R. 6.1 -- the principal suite of integrated system management tools for IBM Informix Dynamic Server (IDS) -- is now available, with editions offered by both IBM and AGS.
The IDS data server is a strategic ingredient of IBM's Information Management software portfolio and the recently announced IDS 11 -- code named Cheetah -- delivers increased performance, reliability and scalability, along with the capacity to manipulate massive volumes of intricate data at very towering speeds. IDS 11 is too the industry's first data server to provide clustered data centers with continuous data availability and calamity recovery regardless of the geographic location or distance between backup data center sites.
Server Studio and Sentinel together form a powerful infrastructure of multi-platform tools that assist both seasoned database professionals and novices alike manage IBM Informix data server environments with an unprecedented ease and productivity. autochthonous back of IDS 11 modern functionality in the Release 6.1 of Server Studio and Sentinel further enhances capacity to deliver optimal performance, availability and maintainability of Informix databases throughout their entire operational life cycle.
"Our long-term partnership with AGS underscores IBM's steadfast commitment to providing IDS clients with the performance optimization, availability and compliance management solutions they need," said Bernie Spang, director IBM data servers. "The modern Release 6.1 of Server Studio and Sentinel will assist protect the investment that their customers hold made in their Informix data server infrastructures."
The versatility, affluent functionality and ease-of-use provided by Server Studio and Sentinel build on the legendary reliability and simple administration of IDS. The modern instrument set offered by AGS helps companies and organizations ensure that captious database applications remain up and effect at peak levels, allowing them to effectively manage change, manipulate regulatory compliance and assure availability of vital trade information.
Bank of America recently selected Server Studio and Sentinel for its IDS environment -- one of the world's largest distributed data centers processing online monetary transactions.
"The latest release of Server Studio and Sentinel provide a collection of integrated, highly productive system management tools that developers and DBAs working with IBM's Informix data servers hold been demanding and waiting for. Informix now has very powerful graphical tools that exceed the capabilities of autochthonous and third party offerings available for any other database platform. brace this with outstanding technical back and you Get products with excellent value and a quick ROI," said Kevin Kleinhomer, Vice President at Bank of America. "In their large distributed environment, Server Studio and Sentinel hold simplified and automated many DBA tasks. With these additions, IBM's Informix data servers hold been made significantly easier to administer and monitor."
Server Studio provides a comprehensive collection of easy-to-use, proven tools for DBAs and developers that help efficiency of performing common database tasks such as: SQL development and debugging, schema management, configuration auditing and change management, performance tuning, data storage management and reorganization, security administration and more -- replete from an integrated graphical console that unites development, administration and maintenance activities for an entire Informix infrastructure at a central point of control.
Sentinel provides 24 × 7 operational monitoring, alerting, issue discovery, analysis and autonomic response automation infrastructure for IBM Informix data servers' environment. It's simple to deploy agent-less architecture equips DBAs with sophisticated diagnostics and remediation facilities which assist pinpoint and resolve the underlying causes of performance bottlenecks and resources contention issues that adversely influence databases' availability and repercussion conclude users.
Smaller companies and organizations that enact not hold large IT staffs to manage large data servers infrastructure hold too benefited from the robust application development and administration capabilities provided by IDS and Server Studio.
"As a software developer and DBA, Server Studio is a instrument that I utilize every day, and it is exactly what I require from my tools -- stable, reliable, and powerful," said Sean Durity, Manager of IT for CornerCap Investment Counsel. "Even the 'small' features of Server Studio are large timesavers. I can't imagine working with Informix and not using Server Studio. I won't labor with anything less."
The relationship between AGS and IBM began in 2000 when IBM began distributing AGS' Server Studio as the primary database development and administration tools suite with Informix data servers. Product management, engineering and QA teams of both companies labor closely on product direction, technology development and QA testing of Server Studio and Sentinel.
"We are supercilious of and greatly value their strategic partnership with IBM. Selection of AGS data servers' management solutions by IBM is a testament to their industry-leading technology," said Anatole Vishon, CEO of AGS Ltd. "We understand the vital import of Informix, particularly in the retail, financial, telecommunications, healthcare, government and SMB sectors. AGS is committed to supporting existing capabilities and developing modern technologies for Informix data servers to add value for IBM customers."
Pricing and Availability
The Release 6.1 of Server Studio and Sentinel are available now through IBM and AGS worldwide. The Core Edition of Server Studio is provided by IBM to Informix customers at no additional cost. Its basic functionality can subsist extended by purchase of various premium editions available directly from AGS.
Additional information about Server Studio is available at: http://www.ibm.com/software/data/informix/serverstudio/, or http://www.serverstudio.com/products/serverstudio/
Additional information about Sentinel is available at: http://www.ibm.com/software/data/informix/sentinel/, or http://www.serverstudio.com/products/sentinel/
Additional information about Informix Dynamic Server is available at: http://www.ibm.com/software/data/informix/ids/
AGS, Server Studio and Sentinel are trademarks or registered trademarks of Advanced Global Systems, Ltd. For a list of additional AGS trademarks, gratify notice http://www.ags.com
IBM, Informix Dynamic Server and the IBM e-business logo are trademarks or registered trademarks of International trade Machines Corporation. For a list of additional IBM trademarks, gratify notice www.ibm.com/legal/copytrade.shtml
All other company, product or service names may subsist trademarks or registered trademarks of others. Statements concerning IBM's future development plans and schedules are made for planning purposes only, and are theme to change or withdrawal without notice. Reseller prices may vary.
Nov 10, 2011Vaibhav Dantale
Although it is feasible to develop an efficient Vehicle Tracking System using any database server, and many such solutions are already available in the market, Informix offers many advantages. Informix can reduce your disk space requirement, help your query performance, and reduce your application development efforts, without special training or buying additional technology. The built-in technologies of Informix will reduce your total cost of ownership, so if these benefits are necessary to you, preserve reading!
A Vehicle Tracking System (VTS) tracks vehicles and provides different analytics, such as the total distance travelled, the total fuel consumption, the best routes, and so on. Certainly having more and more different kinds of alerts improves the efficiency of system. This system encompasses three phases of implementation: instrumentation, integration, and intelligence.
Instrumentation: Each vehicle has a special device that records different parameters related to a vehicle, such as, speed, current location, fuel status, ignition status, and so on.
Integration: Devices implemented in the field transmit information through an integrated system that includes a GPRS system and stores the information in a database.
Intelligence: The intelligence on the information collected from the field is stored in a database, including different kinds of MIS reports, dashboards, current locations of vehicles, travel information, and reports of exceptions like geo-fence violations and fuel theft.
Some of the characteristics of a VTS are:
Now let's notice the advantages of Informix built-in technologies over the traditional relational approach.Disk Space Saving (62%)
A vehicle tracking system collects the vehicle-related information, including a time stamp, with a specific frequency. Informix provides a data kind that stores this kind of time succession information more efficiently than any traditional RDBMS approach. The following tables compare both approaches.
Traditional RDBMS approach
This table shows the structure of the tracking table in a traditional RDBMS.
Informix TimeSeries data kind approach
Informix stores time succession data in a specialized data type, called TimeSeries, which stores replete the time succession data for a particular vehicle in the identical row. Informix supports two different types of time series: regular time succession that stores the data with a fixed frequency, and irregular time succession that stores the data for capricious points in time. A regular time succession is the most suitable for a VTS. In a regular time series, the time stamp is stored only once as the origin of the time succession and the time stamps of the relaxation of the rows are calculated using the offset from the origin.
This table shows the structure of the tracking table in Informix, using the TimeSeries data type.
[(72.844060, 19.116280,85.00,40.00), (72.853800, 19.113470,84.90, 39.00)....]
[(72.855370, 19.116570, 100.00,45.00), (72.885120, 19.106000, 99.90, 45.00)..]
The data for each vehicle is stored in contiguous disk space on a page.
Traditional RDBMS approach
We create the traditional RDBMS table for storing vehicle tracking information, called vehicle_tracking:
create table vehicle_tracking
vehicle_number integer, - 4 (bytes)
timestamp datetime year to fraction(5) - 11(bytes)
longitude decimal(10,8), - 6(bytes)
latitude decimal(10,8) - 6(bytes)
accelerate decimal(5,2) - 4(bytes)
We create an index on the vehicle_number and timestamp columns.
Suppose they hold 10,000 vehicles to subsist tracked every minute and they need to store information for 90 days. Let's motif the storage requirements.
Record size = 4+11+6+6+4 = 31
Record/slot overhead = 4 bytes
Total size of record = 31 + 4 = 35 bytes
Page overhead for maintaining page information = 28bytes per page
Total free space on 2 K page size = 2048-28 = 2020byte
Total records on each page = 2020/35=57
Total number of records = 10000*60*24*90 = 1296000000
Total number of pages used = 1296000000 / 57 = 22736842
Total space required for data = 22736842 * 2 KB = 43 GB
Total space required for the index = 34 GB
The total space required for the vehicle_tracking table = 43 + 34 = 77GB
Informix TimeSeries data kind approach
We create a TimeSeries data type, named vehicle_tracking_rt, and then create a table, named vehicle_tracking_ts, that includes the vehicle_tracking_rt column:
create row kind vehicle_tracking_rt
timestamp datetime year to fraction(5)
create table vehicle_tracking_ts
We create an index on only the vehicle_number column.
We store the vehicle number only once, hence the space required for the vehicle_number column = 10000*4 = 40000bytes=39 KB.
We create the index on only the vehicle_number column, hence the total space required for the index = 10000*4=40000 bytes = 39 KB.
We store the time stamp only once for each vehicle, hence the space required for the time stamp = 10000*11 = 110000 bytes = 107 KB.
The space required for replete remaining columns is:
Record size = 6+6+4 = 16
Record/slot overhead = 4 bytes
Total size of record = 16 + 4 = 20 bytes
Page overhead for maintaining page information = 28bytes + 16 bytes slot overhead Total free space on 2 K page size = 2048-44 = 2004 bytes
Total records on each page = 2004/20=100
Total number of pages used per vehicle per day = 1440 / 100 = 15
Total pages used per day = 10000*15 = 150000
Total space required for data on first day = 150000 * 2 KB = 0.29 GB
Daily increment in data = 0.27 GB
Total space required for data of 90 days = 25 GB
The total space required for the vehicle_tracking_ts table = 25 GB +39 KB +29 KB+ 107 KB = 25 GB
This is a 68% disc space saving compared to a traditional RDBMS approach.Performance (up to 54 times faster)
Let's account few utilize cases:
For replete of these utilize cases, the application scans through the data for one day.
Traditional RDBMS performance
The report generation requires the following disk reads:
At least 5 disk reads through the index to attain to leaf nodes
Each vehicle has 60*24 records per day = 1440
Each vehicle needs 1440 non-cached disk reads
Total non-cached distributed disk reads = 1440 * 10000 = 14.4 million
Informix TimeSeries data kind performance
Because the index is only 39 KB, the scan effort is minimal.
Because the TimeSeries data kind stores data in contiguous space on a page, for a 2 K page size each page contains at least 2004/20 = 100 rows.
Each vehicle needs 1440/100 = 15 pages = 15 disk reads.
Total non-cached distributed disk reads = (15+ 1) * 10000 = 160,000
Informix TimeSeries type
68% space saving
54 times faster
The advantages of using the Informix TimeSeries implementation are:
Because many operations in a VTS application are time based, the available built-in routines for the Informix TimeSeries data kind makes development simple and fast.
If they want to notice the unbiased accelerate of vehicle every 30 minutes, the RDBMS approach requires a large programming effort and a performance challenge. Whereas, with the Informix TimeSeries data type, they utilize the simple AggregateBy duty to roll-up the information to any required time frequency.
If they want to notice the unbiased accelerate of vehicle in eventual 30 days, the best course is to examine its running unbiased (not its traditional average). Again, showing the running unbiased accelerate of vehicles with the RDBMS approach is a large programming and performance challenge. Whereas with the Informix TimeSeries data type, they utilize the simple TSRunningAvg duty with the term and frequency that they want.
Another basic need of VTS is storing location-related information. Location information can subsist in the form of a point specifying the location of vehicle, a LineString specifying the route, or a Polygon specifying the geo-fence of the vehicle. The easiest course to manipulate this kind of information is by using the Informix spatial data types. Informix spatial data types not only optimally maintain the data, but too provide built-in routines that help the accuracy and ease the development of your solution.
Let's examine the utilize case of geo-fencing. Geo-fencing refers to the exercise of limiting the vehicle movements to a specific geographical locality by defining the latitude and longitude of the locality in the form of a LineString or polygon.
A geo-fence system raises an warning if one of the vehicles leaves the fenced locality and deviates from its designated route. This might befall because of the personal interest of the vehicle driver or because the vehicle is stolen.
Traditional RDBMS approach
We identify the different locations on the route the vehicle is hypothetical to travel and insert multiple rows into a fence table, comprising information like the vehicle ID and its location (latitude and longitude) information. If they need to track 200 different locations on the designated route for a particular vehicle, they insert 200 rows for that vehicle. To check if the vehicle is outside the fence area, they develop their own logic and sprint the cursor through these 200 rows to check if the current location is within any two points.
To display the geo-fence on an online map, they create an XML file by running a cursor through replete 200 records and then parse through the XML to display each point on the map.
Informix spatial data types approach
We define a column called geofence in the master table with a data kind of either polygon or LineString. They store replete 200 location co-ordinates in this lone column.
To check if the vehicle is within the fence area, they utilize the SQL duty ST_Within (curr_loc,geofence). If the duty returns "True," the vehicle is within the fence area; if it returns "False," the vehicle is outside the fence area.
To display the geo-fence on an online map, they utilize SE_askml(geofence) function, which creates a KML file that they can import into the map.
Advantages of using Informix spatial data types
Systems like a Vehicle Tracking System can subsist developed using any kind of database as a back-end. But using by the Informix TimeSeries and spatial built-in data types, the identical system can subsist many times more efficient. The disk space saving of 60% and up to 54 times faster performance compared to traditional relational approach can enable you to increase the frequency of data collection, which means better accuracy. The built-in functions for the TimeSeries and spatial data types makes the application development stint easier and provides for increased accuracy.
About the author:
Vaibhav Dantale is a software engineer within IBM Information Management division. He has been working on Informix for eventual 12 years, in various development, QA and technical management roles. Currently, Dantale focuses on evangelizing Informix product in ASIA Pacific region. He is one of the Informix TimeSeries technical experts and has been involved in several customer engagements on Informix TimeSeries. He has patents under his name and is co-author of a red bespeak on Informix security features.
Establishing a usable database environment requires a considerable deal of skill, knowledge, and consideration. This chapter will silhouette the principles involved in establishing a usable database environment.This chapter is from the bespeak
One of the primary tasks associated with the job of DBA is the process of choosing and installing a DBMS. Unfortunately, many trade executives and IT professionals without database management background assume that once the DBMS is installed, the bulk of the labor is done. The verity is, choosing and installing the DBMS is hardly the most difficult portion of a DBA’s job. Establishing a usable database environment requires a considerable deal of skill, knowledge, and consideration. This chapter will silhouette the principles involved in establishing a usable database environment.
The process of choosing a suitable DBMS for enterprise database management is not as difficult as it used to be. The number of major DBMS vendors has dwindled due to industry consolidation and domination of the sector by a few very large players.
Yet, large and medium-size organizations typically sprint multiple DBMS products, from as few as two to as many as ten. For example, it is not uncommon for a large company to utilize IMS or IDMS and DB2 on the mainframe, Oracle and MySQL on several different UNIX servers, Microsoft SQL Server on Windows servers, as well as pockets of other DBMS products such as Sybase, Ingres, Adabas, and PostgreSQL on various platforms, not to mention single-user PC DBMS products such as Microsoft Access, Paradox, and FileMaker. Who chose to install replete these DBMSs and why?
Unfortunately, often the reply is that not much thought and planning went into the decision-making process. Sometimes the decision to purchase and install a modern DBMS is driven by a trade need or a modern application. This is reasonable if your organization has no DBMS and must purchase one for the first time. This is rarely the case, though. Regardless of whether a DBMS exists on-site, a modern DBMS is often viewed as a requirement for a modern application. Sometimes a modern DBMS product is purchased and installed without first examining if the application could subsist successfully implemented using an existing DBMS. Or, more likely, the DBAs know the application can subsist implemented using an existing DBMS but lack the organizational power or back to reject a modern DBMS proposal.
There are other reasons for the being of multiple DBMS platforms in a lone organization. Perhaps the company purchased a commercial off-the-shelf application package that does not sprint on any of the current DBMS platforms. Sometimes the decision to buy a modern DBMS is driven by the desire to back the latest and greatest technology. For example, many mainframe shops poignant from a hierarchic (IMS) or CODASYL (IDMS) database model to the relational model deployed DB2, resulting in an additional DBMS to learn and support. Then, when client/server computing became popular, additional DBMSs were implemented on UNIX, Linux, and Windows servers.
Once a DBMS is installed, removal can subsist difficult because of incompatibilities among the different DBMSs and the necessity of converting application code. Furthermore, when a modern DBMS is installed, archaic applications and databases are usually not migrated to it. The archaic DBMS remains and must continue to subsist supported. This complicates the DBA’s job.
So what should subsist done? Well, the DBA group should subsist empowered to build the DBMS decisions for the organization. No trade unit should subsist allowed to purchase a DBMS without the authorization of the DBA group. This is a difficult provision to implement and even more difficult to enforce. trade politics often labor against the DBA group because it frequently possesses less organizational power than other trade executives.Choosing a DBMS
The DBA group should set a policy regarding the DBMS products to subsist supported within the organization. Whenever possible, the policy should minimize the number of different DBMS products. For a shop with multiple operating systems and multiple types of hardware, pick a default DBMS for the platform. dishearten deviation from the default unless a compelling trade case exists—a trade case that passes the technical inspection of the DBA group.
Most of the major DBMS products hold similar features, and if the feature or functionality does not exist today, it probably will within 18 to 24 months. So, exercise caution before deciding to pick a DBMS based solely on its capacity to back a specific feature.
When choosing a DBMS, it is judicious to select a product from a tier-1 vendor as listed in Table 2.1. Tier 1 represents the largest vendors having the most heavily implemented and supported products on the market. You cannot retreat wrong with DB2 or Oracle. Both are favorite and back just about any kind of database. Another major player is Microsoft SQL Server, but only for Windows platforms. DB2 and Oracle sprint on multiple platforms ranging from mainframe to UNIX, as well as Windows and even handheld devices. Choosing a DBMS other than these three should subsist done only under specific circumstances.Table 2.1. Tier-1 DBMS Vendors
New Orchard Road
Armonk, NY 10504
Phone: (914) 499-1900
500 Oracle Parkway
Redwood Shores, CA 94065
Phone: (650) 506-7000
One Microsoft Way
Redmond, WA 98052
Phone: (425) 882-8080
After the large three approach MySQL, Sybase, Teradata, and Informix. Table 2.2 lists these tier-2 DBMS vendors. replete of these offerings are character DBMS products, but their installed base is smaller, their products are engineered and marketed for niche purposes, or the companies are smaller with fewer resources than the large Three (IBM, Oracle, and Microsoft), so there is some risk in choosing a DBMS from tier 2 instead of tier 1. However, there may subsist solid reasons for deploying a tier-2 solution, such as the towering performance offered by Informix or the data warehousing and analytics capabilities of Teradata.Table 2.2. Tier-2 DBMS Vendors
Informix Dynamic Server
New Orchard Road
Armonk, NY 10504
Phone: (914) 499-1900
Sybase Inc. (an SAP Company)
Adaptive Server Enterprise
6475 Christie Avenue
Emeryville, CA 94608
Phone: (510) 922-3500
10000 Innovation Drive
Dayton, OH 45342
Phone: (937) 242-4030
MySQL (a subsidiary of Oracle Corporation)
Phone: (208) 338-8100
Of course, there are other DBMS products on the market, many of which are fine products and worthy of consideration for specialty processing, unavoidable predefined needs, and niche roles. If your company is heavily into the open-source software movement, PostgreSQL, EnterpriseDB, or MySQL might subsist viable options. If an protest DBMS is necessary for a specific project, you might account ObjectDesign or Versant. And there are a variety of NoSQL DBMS offerings available, too, such as Hadoop, Cassandra, and MongoDB.1
However, for the bulk of your data management needs, a DBMS from a tier-1, or perhaps tier-2, DBMS vendor will deliver sufficient functionality with minimal risk. A myriad of DBMS products are available, each with unavoidable features that build them worthy of consideration on a case-by-case basis. Choosing any of the lower-tier candidates—even such major names as Software AG’s Adabas and Actian’s Ingres—involves incurring additional risk. advert to Appendix B for a list of DBMS vendors.
I enact not want it to sound as if the selection of a DBMS is a no-brainer. You will need a strategy and a contrivance for selecting the commandeer DBMS for your specific situation. When choosing a DBMS, subsist positive to account each of these factors:
The Transaction Processing Performance Council is an independent, not-for-profit organization that manages and administers performance benchmark tests. Its mission is to define transaction processing and database benchmarks to provide the industry with objective, verifiable performance data. TPC benchmarks measure and evaluate computer functions and operations.
The definition of transaction espoused by the TPC is a trade one. A typical TPC transaction includes the database updates for things such as inventory control (goods), airline reservations (services), and banking (money).
The benchmarks produced by the TPC measure performance in terms of how many transactions a given system and database can effect per unit of time, for example, number of transactions per second. The TPC defines three benchmarks:
Additional information and in-depth definitions of these benchmarks can subsist institute at the TPC Web site at www.tpc.org (see motif 2.1).
When choosing a DBMS, subsist positive to engage into account the complexity of the products. DBMS software is very intricate and is getting more intricate with each modern release. Functionality that used to subsist supported only with add-on software or independent programs is increasingly being added as features of the DBMS, as shown in motif 2.2. You will need to contrivance for and back replete the features of the DBMS. Even if there is no current requirement for unavoidable features, once you implement the DBMS the programmers and developers will find a judgement to utilize just about anything the vendor threw into it. It is better to contrivance and subsist prepared than to allow features to subsist used without a contrivance for supporting them.
Figure 2.2. Convergence of features and functionality in DBMS softwareDBMS Architectures
The supporting architecture for the DBMS environment is very captious to the success of the database applications. One wrong preference or poorly implemented component of the overall architecture can judgement poverty-stricken performance, downtime, or unstable applications.
When mainframes dominated enterprise computing, DBMS architecture was a simpler concern. Everything ran on the mainframe, and that was that. However, today the IT infrastructure is distributed and heterogeneous. The overall architecture—even for a mainframe DBMS—will probably consist of multiple platforms and interoperating system software. A team consisting of trade and IT experts, rather than a lone person or group, should build the final architecture decision. trade experts should comprehend representatives from various departments, as well as from accounting and legal for software condense issues. Database administration representatives (DA, DBA, and SA), as well as members of the networking group, operating system experts, operations control personnel, programming experts, and any other interested parties, should subsist included in this team.
Furthermore, subsist positive that the DBMS you select is commandeer for the nature and kind of processing you contrivance to implement. Four levels of DBMS architecture are available: enterprise, departmental, personal, and mobile.
An enterprise DBMS is designed for scalability and towering performance. An enterprise DBMS must subsist capable of supporting very large databases, a large number of concurrent users, and multiple types of applications. The enterprise DBMS runs on a large-scale machine, typically a mainframe or a high-end server running UNIX, Linux, or Windows Server. Furthermore, an enterprise DBMS offers replete the “bells and whistles” available from the DBMS vendor. Multiprocessor support, back for parallel queries, and other advanced DBMS features are core components of an enterprise DBMS.
A departmental DBMS, sometimes referred to as a workgroup DBMS, serves the middle ground. The departmental DBMS supports miniature to medium-size workgroups within an organization; typically, it runs on a UNIX, Linux, or Windows server. The dividing line between a departmental database server and an enterprise database server is quite gray. Hardware and software upgrades can allow a departmental DBMS to tackle tasks that previously could subsist performed only by an enterprise DBMS. The steadily falling cost of departmental hardware and software components further contributes to lowering the total cost of operation and enabling a workgroup environment to scale up to serve the enterprise.
A personal DBMS is designed for a lone user, typically on a low- to medium-powered PC platform. Microsoft Access, SQLite, and FileMaker2 are examples of personal database software. Of course, the major DBMS vendors too market personal versions of their higher-powered solutions, such as Oracle Database Personal Edition and DB2 Personal Edition. Sometimes the low cost of a personal DBMS results in a misguided attempt to pick a personal DBMS for a departmental or enterprise solution. However, enact not subsist lured by the low cost. A personal DBMS product is suitable only for very small-scale projects and should never subsist deployed for multiuser applications.
Finally, the mobile DBMS is a specialized version of a departmental or enterprise DBMS. It is designed for remote users who are not usually connected to the network. The mobile DBMS enables local database access and modification on a laptop or handheld device. Furthermore, the mobile DBMS provides a mechanism for synchronizing remote database changes to a centralized enterprise or departmental database server.
A DBMS designed for one kind of processing may subsist ill suited for other uses. For example, a personal DBMS is not designed for multiple users, and an enterprise DBMS is generally too intricate for lone users. subsist positive to understand the differences among enterprise, departmental, personal, and mobile DBMS software, and pick the commandeer DBMS for your specific data-processing needs. You may need to pick multiple DBMS types—that is, a DBMS for each level—with usage determined by the needs of each development project.
If your organization requires DBMS solutions at different levels, favor the selection of a group of DBMS solutions from the identical vendor whenever possible. Doing so will minimize differences in access, development, and administration. For example, favor Oracle Database Personal Edition for your single-user DBMS needs if your organization uses Oracle as the enterprise DBMS of choice.DBMS Clustering
Clustering is the utilize of multiple “independent” computing systems working together as a single, highly available system. A modern DBMS offers clustering back to enhance availability and scalability. The two predominant architectures for clustering are shared-disk and shared-nothing. These names enact a righteous job of describing the nature of the architecture—at least at a towering level.
Shared-nothing clustering is depicted in motif 2.3. In a shared-nothing architecture, each system has its own private resources (memory, disks, etc.). The clustered processors communicate by passing messages through a network that interconnects the computers. In addition, requests from clients are automatically routed to the system that owns the resource. Only one of the clustered systems can “own” and access a particular resource at a time. In the event a failure occurs, resource ownership can subsist dynamically transferred to another system in the cluster. The main odds of shared-nothing clustering is scalability. In theory, a shared-nothing multiprocessor can scale up to thousands of processors because they enact not meddle with one another—nothing is shared.
In a shared-disk environment, replete the connected systems participate the identical disk devices, as shown in motif 2.4. Each processor soundless has its own private memory, but replete the processors can directly address replete the disks. Typically, shared-disk clustering does not scale as well for smaller machines as shared-nothing clustering. Shared-disk clustering is better suited to large-enterprise processing in a mainframe environment. Mainframes—very large processors—are capable of processing enormous volumes of work. considerable benefits can subsist obtained with only a few clustered mainframes, while many PC and midrange processors would need to subsist clustered to achieve similar benefits.
Shared-disk clustering is usually preferable for applications and services requiring only modest shared access to data and for applications or workloads that are very difficult to partition. Applications with heavy data update requirements are probably better implemented as shared-nothing. Table 2.3 compares the capabilities of shared-disk and shared-nothing architectures.Table 2.3. Comparison of Shared-Disk and Shared-Nothing Architectures
Quick adaptability to changing workloads
Can exploit simpler, cheaper hardware
Almost unlimited scalability
Performs best in a heavy read environment
Works well in a high-volume, read-write environment
Data need not subsist partitioned
Data is partitioned across the cluster
The major DBMS vendors provide back for different types of clustering with different capabilities and requirements. For example, DB2 for z/OS provides shared-disk clustering with its Data Sharing and Parallel Sysplex capabilities; DB2 on non-mainframe platforms uses shared-nothing clustering. Oracle’s existent Application Clusters provide shared-disk clustering.
For most users, the primary benefit of clustering is the enhanced availability that accrues by combining processors. In some cases, clustering can assist an enterprise to achieve five-nines (99.999 percent) availability. Additionally, clustering can subsist used for load balancing and failover.DBMS Proliferation
As a rule of thumb, create a policy (or at least some simple guidelines) that must subsist followed before a modern DBMS can subsist brought into the organization. Failure to enact so can judgement a proliferation of different DBMS products that will subsist difficult to support. It can too judgement confusion regarding which DBMS to utilize for which development effort.
As mentioned earlier, there is a plethora of DBMS vendors, each touting its benefits. As a DBA, you will subsist bombarded with marketing and sales efforts that attempt to convince you that you need another DBMS. Try to resist unless a very compelling judgement is given and a short-term revert on investment (ROI) can subsist demonstrated. Even when confronted with valid reasons and righteous ROI, subsist positive to double-check the arguments and ROI calculations. Sometimes the reasons specified are outdated and the ROI figures enact not engage everything into account—such as the additional cost of administration.
Remember, every DBMS requires database administration support. Moreover, each DBMS uses different methods to effect similar tasks. The fewer DBMS products installed, the less complicated database administration becomes, and the better your chances become of providing efficient data management resources for your organization.Hardware Issues
When establishing a database environment for application development, selecting the DBMS is only portion of the equation. The hardware and operating system on which the DBMS will sprint will greatly repercussion the reliability, availability, and scalability (RAS) of the database environment. For example, a mainframe platform such as an IBM zEC12 running z/OS will probably provide higher RAS than a midrange IBM xSeries machine running AIX, which in eddy will probably exceed a Dell server running Windows. That is not to utter everything should sprint on a mainframe; other issues such as cost, experience, manageability, and the needs of the applications to subsist developed must subsist considered. The bottom line is that you must subsist positive to factor hardware platform and operating system constraints into the DBMS selection criteria.Cloud Database Systems
Cloud computing (see the sidebar) is increasing in usage, especially at miniature to medium-size businesses. A cloud implementation can subsist more cost-effective than pile an entire local computing infrastructure that requires management and support.
A cloud database system delivers DBMS services over the Internet. The trade-off essentially comes down to trusting a cloud provider to store and manage your data in revert for minimizing database administration and maintenance cost and effort. Using cloud database systems can enable organizations, especially smaller ones without the resources to invest in an enterprise computing infrastructure, to focus on their trade instead of their computing environment.
By consolidating data sources in the cloud, it is feasible to help collaboration among partners, arm offices, remote workers, and mobile devices, because the data becomes accessible as a service. There is no need to install, set up, patch, or manage the DBMS software because the cloud provider manages and cares for these administrative tasks. Of course, the downside is that your data is now stored and controlled by an external agent—the cloud provider. Another inherent risk of cloud computing is the possibility of nefarious agents posing as legitimate customers.
An specimen of a cloud database platform is Microsoft SQL Azure. It is built on SQL Server technologies and is a component of the Windows Azure platform.
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