Chapter 8.5. The effect of load on storage controllers
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Chapter 8. VDisks 139 Figure 8- 11 Effect of migrating batch workload 8.5 The effect of load on storage controllers Because the SVC is able to share the capacity of a few MDisks to many more VDisks ( and, thus, are assigned to hosts generating I/ O), it is possible that an SVC can generate a lot more I/ O than the storage controller normally received if there was not an SVC in the middle. To add to this situation, FlashCopy can add additional I/ O to a storage controller on top of the I/ O that hosts are generating. It is important to take the load that you can put onto a storage controller into consideration when defining VDisks for hosts to make sure that you do not “ overload” ...
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