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Configuring DS8000 Full System HyperSwap

For System i® high availability solutions using HyperSwap®, detection of the HyperSwap configuration is automatic on the System i machine after appropriate configuration has been performed on the IBM® System Storage® external storage units.

The steps assume knowledge of configuring and managing an IBM System Storage DS8000®. For information about using an IBM System Storage DS8000 unit, see Start of changeCopy Services in the IBM System Storage DS8000 Information CenterEnd of change.

To configure HyperSwap, follow these steps:
  1. Create LUNs on the source DS8000.
  2. Assign LUNs on source DS8000 to the System i machine.
  3. Create LUNs on the target DS8000. Do not assign them to the System i until after Metro Mirror is configured.
  4. Configure Metro Mirror between the source and target DS8000.
  5. Assign the LUNs on the target DS8000 to the same System i machine.
  6. Verify the HyperSwap configuration with the Display HyperSwap Status (DSPHYSSTS) command.

To understand how HyperSwap interfaces with affinity, see Defining HyperSwap Affinity.

  • Start of changeDefining HyperSwap AffinityEnd of change
    By using DS8000 HyperSwap combined with logical unit (LUN) level switching and or PowerVM Live Partition Mobility, it is possible to define which IBM i systems should use which IBM System Storage DS8000 as their primary. Upon accomplishing a live partition mobility switch or a LUN switching CRG switch, if the partition is no longer running on the preferred IBM System Storage unit, a HyperSwap switchover to the secondary IBM System Storage unit is done as part of the switching process.
Parent topic: Implementing PowerHA
Related tasks:
Defining HyperSwap Affinity
Related information:
Start of changeChange HyperSwap Status (CHGHYSSTS) commandEnd of change
Start of changeDisplay HyperSwap Status (DSPHYSSTS) commandEnd of change
Start of changeLive Partition MobilityEnd of change
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