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 IBM eServer OpenPower 720 Workload Balancing Using POWER Hypervisor and Virtual I/O Server
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This white paper describes how Micro-Partitioning™ can be employed on IBM eServer™ OpenPower™ 720 with the Linux® operating system to set up flexible partitioned configurations for dynamic workload balancing of available CPU resources. The paper covers several workload scenarios that demonstrate the performance robustness of Micro-Partitioning in a mixed transactional and batch environment. To show the effects of varying workload transaction rates on different partitions, special time-varying workload drivers were used to simulate changing workload rates. The test system simulates a real client environment where a mixture of interactive and batch workloads that vary in intensity can be expected. This paper describes how special features of the IBM eServer OpenPower 720 with SUSE LINUX Enterprise Server 9 for POWER™ (SLES 9) allows clients to do dynamic workload balancing between independent partitions and shows inter-partition performance effects. Understanding how shared resource Micro-Partitioning entitlements, weighting, and uncapped mode can affect performance will help system administrators and system planners configure partitions that closely match their server workload requirements. These flexible performance characteristics make the OpenPower 720 with SLES 9 a powerful and versatile server consolidation option.
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