Chapter 4.2. Node shutdown and node failure
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56 SAN Volume Controller: Best Practices and Performance Guidelines 4.1 Determining I/ O Groups TotalStorage Productivity Center ( TPC) can help you monitor the CPU performance of each node in an I/ O Group. CPU performance is related to I/ O performance, and when the CPUs become consistently 70% busy, you must consider either: Adding more nodes to the cluster and moving part of the workload onto the new nodes Move some VDisk to another I/ O Group if the other I/ O Group is not busy To see how busy your CPUs are, you can use the TPC performance report by selecting “ CPU Utilization”. Several of the activities that affect CPU utilization are: VDisk activity: The preferred node is responsible for ...
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