Managing hardware reserves

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Copy Services Manager 6.2.11 supports a new hardware reserves option for HyperSwap® configurations. This option is for DS8000® 9.1 and higher, contact support before enabling the option.

About this task

This option requires the z/OS IOS APAR OA57049. It provides support to ensure that active hardware reserves on primary PPRC devices are properly transferred to the new primary devices after a HyperSwap, helping to remove the need to convert hardware reserves to Global ENQs. This option also provides support for sharing devices between sysplexes in a z/OS HyperSwap environment. The sharing is limited to devices in a single Metro Mirror HyperSwap configuration.

Follow these steps to enable the hardware reserves option for HyperSwap:
Note: This option is only supported on the two-site and multi-target Metro Mirror - Global Mirror sessions that support HyperSwap. This option is not supported on Metro Global Mirror, Metro Global Mirror with Practice, or the multi-target Metro Mirror - Metro Mirror session types.

Procedure

  1. Log in to the Copy Services Manager GUI as a user with administrative privileges.
  2. Click Sessions.
  3. From the Session Overview panel, click Session Actions > View/Modify > Properties.
  4. In the session properties for sessions that support HyperSwap, select the Enable Hardware Reserves option.