SAN Volume Controller: Best Practices and Performance Guidelines

Chapter 2.2.3. Growing or splitting SVC clusters

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24 SAN Volume Controller: Best Practices and Performance Guidelines With the newly added I/ O Group, the SVC cluster can now manage more than 130,000 IOPS. An SVC cluster itself can be scaled up to an eight node cluster with which we will reach a total I/ O rate of more than 250,000 IOPS. Figure 2- 2 Performance increase by adding I/ O Groups Looking at Figure 2- 2, you can see that the response time over throughput can be scaled nearly linearly by adding SVC nodes ( I/ O Groups) to the cluster. 2.2.3 Growing or splitting SVC clusters Growing an SVC cluster can be done concurrently, and the SVC cluster can grow up to the current maximum of eight SVC nodes per cluster in four I/ O Groups. ...