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Disaster Recovery (DR Star)
This chapter describes the disaster recovery (DR) mechanisms of DR Star trios set up by HyperMetro and asynchronous remote replication pairs/CGs and how the trios restore to the original state before a disaster.
Figure 8-1 is an example DR Star trio in the normal state.
- Failure of Site A
- Failure of Site B
- Failure of Site C
- Failure of Sites A and B
- Failure of Sites A and C
- Link Failure Between Sites A and B
- Link Failure Between Sites A and C
- Link Failure Between Sites B and C
- Link Failure Between Sites A and B and Between Sites A and C
- Link Failure Between Sites A and C and Between Sites B and C
