Performance requirements for DS8000 Full System HyperSwap

You should understand these performance considerations before configuring HyperSwap®.

Before you use DS8000 HyperSwap, consider the following requirements and guidelines:
  • The source and target volumes in a HyperSwap relationship must be the same storage type.
  • The source and target logical volumes must be the same size.
  • As with any synchronous replication technology, there are distance and bandwidth limitations that can affect performance.
  • Similar to any system disk configuration, the number of disk units available to the application can have a significant effect on its performance.
  • Putting more workload on a limited number of disk units may result in longer disk waits and ultimately longer response times to the application.