Planned outage of the secondary system or remote path

You must split the pairs in a secondary system prior to a planned outage of the system or to a data path component (for example, switch, channel extender).

1. Identify the P-VOLs that are paired with S-VOL in the secondary system that is to be powered off.
   For data path outage, identify all P-VOLs in the primary system that use the path or component to be powered off. You need to know the primary system, CU, and IDs (port, host group or iSCSI target, and LUN) for each of the P-VOLs.
   1. When powering off storage systems at the secondary site, identify all P-VOLs paired with the S-VOLs of storage systems to be powered off.
   2. When powering off remote copy connections, identify all P-VOLs of storage systems at the primary site that use paths, switches, or channel extenders to be powered off.
2. Connect to each primary system that contains to-be-affected P-VOLs, and split all to-be-affected pairs.
   Confirm the changed pair status in the Remote Replication window or the View Pair Properties window in HDvM - SN or by using the pairdisplay command in CCI.
3. Perform the planned outage of the secondary system or remote copy connections.
4. When the secondary system is fully powered on and ready, resynchronize the affected pairs at each primary system. Confirm the pair status changes.