5486wrkperf.fm Draft Document for Review October 18, 200456 IBM Eserver i5 and iSeries System Handbook25 disk operations per second, you could feel the controller slowing down. Anymore than that and the controller started to bottleneck.Using 10k rpm drives and replacing the above controller with a #2757 PCI-XUltra RAID Disk Controller meant that you could go up to about 50 diskoperations/second/disk with a possibility of still handling peaks at 60 operationsper second (after which the disk drive started to bottleneck). With 15k disk drivesand a #2757 (15 drives per controller), you could go up to 50 disk operations persecond per drive.For disk-related performance information, refer to “Chapter 14, DASDPerformance Management”, in iSeries Performance Capabilities Reference,SC41-0607.Disk Magic for iSeriesThe IBM Disk Magic for iSeries product is intended for modeling ESS disk driveson iSeries servers. Configuration and workload details are entered into the tool.Algorithms support calibration, configuration changes, workload changes, andautomatic cache modeling. The output is available in tabular and graphic reports.Performance analysis is based on limited measurement data. Disk Magic foriSeries is most useful to obtain rough performance estimates of ESS drives oniSeries servers.You can find the tool on the Web at:http://w3.ibm.com/sales/systems/portalhttps://www-1.ibm.com/partnerworld/sales/systems/portal=Refacing options for the iSeries customerSeveral products are available for the iSeries to reface (browser-enable) 5250application software. Some of the products available from IBM include: IBM WebFacing Tool: Part of WebSphere Development Studio (5722-WDS) Host Access Transformation Services Toolkit: Part of WebSphereDevelopment Studio (5722-WDS) iSeries Access for Web: Part of iSeries Access Family (5722-XW1) WebSphere Host on Demand: Part of Host Access Client Package for iSeries(5733-A78) WebSphere Host Publisher: Part of iSeries Access Family and WebSphereIntegration Offering V1.0 (5722-XW1 and 5733-A53)
