You can plan to meet the requirements of a HyperSwap topology system
so that active-active relationships can be used.
- All enclosures and the managed disks of
an I/O group must be at one site.
- There must be another I/O group and managed disks at another site.
- There must be managed disks at a third site for quorum disks. As an alternative to quorum
disks at a third site, you can use IP quorum.
- There must be enough fiber optic
connections between the control enclosures on each site.
- Before the system topology can be set to HyperSwap, the site
attribute must be set to:
- 1, 2 or 3 for each controller
- 1, 2 for each enclosure
- 1, 2 for each host
- The system must be set to HyperSwap topology
before HyperSwap
volumes can be created.