HP DL760 Microsoft Exchange 2000 Consolidation Using ProLiant Essentials Workl - Page 13

TC020602TB TECHNOLOGY BRIEF (cont.) Microsoft Exchange 2000 Consolidation Using ProLiant Essentials Workload Management Pack ... Partition Rules Resource Partition Rules are used to allocate system resources to partitions dynamically to reduce the potential for resource bottlenecks. In Figure 8, a rule has been configured to add processors to the EXStore partition if CPU utilization exceeds 70 percent. The configuration shown adds up to two processors if utilization on the original six processors exceeds 70 percent for more than 30 seconds. A rule could also be enabled to remove processors from the partition when utilization drops below a certain threshold. Monitoring processor utilization and adjusting these rules could provide an optimized solution for each unique environment of applications and hardware. Figure 8. Partitioning Rules TEST RESULTS On a test system, a manual virus scan was run on an Exchange 2000 server with 280 GB of data in the information store. The manual scan lasted 8 hours and 54 minutes; overall CPU utilization was 66.9 percent for all eight processors as recorded by the Windows 2000 performance monitor (PerfMon). During the scan, processors 1 through 6, which were assigned to the stor partition, averaged 65 percent CPU utilization. Processors 7 and 8, which were assigned to the AVPart partition, averaged 85 percent CPU utilization. The same test was performed with both partitions disabled and yielded similar results: The scan lasted 8 hours and 50 minutes with overall CPU utilization for all eight CPUs at 64 percent. While the performance results are similar, it is important to note that if the processes assigned to the AVPart partition had consumed all the available CPU resources of processors 7 and 8, there would still have been ample processing capabilities available from processors 1 through 6 for the stor partition and the store.exe process. 13