how to drive down iseries computing costs
DESCRIPTION
In this Webcast, iSeries performance expert Mike Boadway of MB Software used your enrollment survey responses to drive the focus. If you start with tuning your applications for appropriate workloads, you can greatly improve your iSeries hardware performance -- without expensive hardware upgrades. In addition, properly tuned applications can enhance your system's performance for end user's and increase availability.TRANSCRIPT
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I/O Causing CPU, Memory, Disk Bottlenecks
90% of all system performance issues are caused by excessive, unnecessary I/O performed by application software!
• High CPU Utilization• Memory Faulting• Slow Interactive Response Time• Long Duration of Batch Jobs• High Disk Actuator Arm Activity
Application with SQL that Reads 1,000,000 Records to Select 1,000 Records
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Tune Application Workload Before Hardware Tuning
Don’t Tune Hardware First!
Enhance Efficiency of Applications…
Tune Hardware Around Appropriate Workload
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Identify Top Causes of
Bottlenecks
Identify Top Causes of Bottlenecks
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Understand Make-up of Workload
Understand Make-up of Workload
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Create List of Top Priorities
Create List of Top Priorities1. Interactive Threshold Being Exceeded2. Daytime SQL and Queries Impacting Response Time3. Nightly Processing Running for 5 Hours4. Payroll Job Running for 6 hours per Location5. AR Aging Report Killing System
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Interactive Response Time
63% - Interactive response time is usually OK, but random slowdowns occur. Can’t find cause – solution appears to be a $100,000 interactive feature card.
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Interactive SQL &
Queries #1
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Interactive SQL &
Queries #2
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Interactive SQL &
Queries #3
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Interactive SQL &
Queries #4
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HA Can’t Keep Up
51% - Journal receivers are 10 GB per day, HA can’t keep up.
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Journal Analyze
r #1
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Journal Analyze
r #2
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Journal Analyze
r #3
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Journal Analyze
r #4
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Java & JDBC Killing System
46% - New web app uses Java & JDBC, when web lookup pages are hit, user waits 2 minutes. System was fine until new app went live.
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QJVACMDSR
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Application
Analyzer
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Job Logs Wasting Resources
32% - 500,000 pages of job logs generated every day, logs rarely used, wasting disk space, CPU & I/O.
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Spool Analyzer #1
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Spool Analyzer #2
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Spool Analyzer #3
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Job Description &
End Code
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Message Logging
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Q&A
To receive MB Software’s FREE performance evaluation:
1. Register at http://www.mb-software.com 2. Download and install software on AS/400 3. Call (800) 713-5034 to schedule your free performance review session
What To Expect:
After allowing performance data to accumulate for one full business day, you will log into a secure area of MB Software’s Web site and have a conference call to discuss our findings and how you can gain performance improvements. It’s that easy!
Questions & Answers