After you suspend a session, other sessions also become suspended

Problem

After you suspend a Metro Mirror or Global Mirror session, one or more other sessions might also become suspended.

The Suspend command or a hardware-initiated suspension of a session causes a suspend to happen to all copy sets in that session and any other copy sets that share Logical Subsystems (LSS) pairs. Thus, if two sessions have at least one copy set that uses the same source and target LSSs, a suspension of one session causes the other session to suspend.

Copy Services Manager uses the hardware to carry out a suspend to maintain data consistency. This function cannot be disabled.

Action

Do not create copy sets in different sessions that share LSS pairs.

Use the Stop command instead of the Suspend command for the Metro Mirror session. The Stop command does not cause overlapping sessions to become suspended. It does not guarantee data consistency for a session.