Starting and stopping Metro Mirror, Global Mirror, or active-active consistency-group copy processes using the CLI

You can use the command-line interface (CLI) to start and stop Metro Mirror, Global Mirror, or active-active consistency-group copy processes.

1. To start a Metro Mirror, Global Mirror, or active-active consistency-group copy process, set the direction of copy if it is undefined and optionally mark the secondary volumes of the consistency group as clean. Run the startrcconsistgrp command.
   For example, enter:

   startrcconsistgrp rc_consist_group_id

   where rc_consist_group_id is the ID of the consistency group to start processing.

   Note: If you are starting an active-active consistency group, all relationships in the group must be in idling state for the consistency group to start.
2. To stop the copy process for a Metro Mirror or Global Mirror consistency group, run the stoprcconsistgrp command.

   For example, enter:

   stoprcconsistgrp rc_consist_group_id 

   Where rc_consist_group_id is the ID of the consistency group that you want to stop processing.

   If the group is in a consistent state, you can also use this command to enable write access to the secondary volumes in the group.

3. To stop the copy process for an active-active consistency group, the following conditions must be met:
   • The -access parameter is specified.
   • The state of the relationships in the consistency group are consistent_copying.
   • The status of the relationships in the consistency group are primary_offline.

   For example, enter:

   stoprcconsistgrp rc_consist_group_id -access

   Where rc_rel_id is the ID of the active-active consistency group that you want to stop. The -access parameter allows hosts read or write access to a volume in an active-active relationship that contains an older but a consistent image that can be used in a disaster recovery scenario.