IBM HyperSwap and Multi-site HA/DR for IBM FlashSystem A9000 and A9000R

HyperSwap scenarios

This chapter describes different failure scenarios for IBM FlashSystem A9000 and A9000R with volumes or Consistency Groups in a HyperSwap relationship. The following topics are covered:

•5.1, “Failures on the storage system serving the primary copy” on page 58

•5.2, “Connection failure between host and storage systems” on page 61

•5.3, “Quorum Witness failure scenarios” on page 69

•5.4, “Failback scenarios” on page 86

The material in this chapter is based on an environment that uses one FlashSystem A9000 and one FlashSystem ...