Resuming the HyperSwap environment

As each volume synchronization and swap phase completes, the source and target volumes are resumed as normal.

When all the TDMF Agent systems acknowledge the Master system's resume request for every quiesced HyperSwap volume, the MODIFY Netview,HYPERSW ON command is issued and termination is started for the group.

On a controlling system, the source device is left online at termination, instead of being marked offline as on the production systems.

The TDMF Master system waits during termination until HyperSwap Prepared status is detected. However, if there is a problem that is causing this processing to be delayed for more than a few minutes, the session terminates with a warning message.

Important: TDMF does not detect the situation where HyperSwap is disabled or suspended after the session initializes. For this reason, the active TDMF session needs to be terminated before the HYPERSW DISABLE or HYPERSW OFF commands are issued manually. If the PROMPT option is in effect for the TDMF session, it is not necessary to terminate the session; however, do not reply to the TDMF synchronization prompt until you are ready to turn HyperSwap back on.