HP StorageWorks XP Remote Web Console Software - Manual (Page 34)

3. Perform other operations required before powering the external array off.
4. Power the external array off.
CAUTION:
After executing the Disconnect Subsystem command, if you need to use the mapped external LU
again, execute the Check Paths & Restore Vol. command.
To power external arrays on
1. Power on the external array containing the external LU that is mapped as a local array internal
LDEV.
2. Execute the Check Paths & Restore Vol. command. For instructions, see Checking the connection
status and resuming external LU operations (Check Paths & Restore Vol.) .
CAUTION:
When powering the external array off after executing the Disconnect Subsystem command, you
cannot access the mapped external LU from the local array when you initially turn on the external
array. You must execute the Check Paths & Restore Vol. command to resume using the mapped
external LU. The Check Paths & Restore Vol. command checks the defined information and the actual
status of the external LU mapped as a local array internal LDEV. If the external LU is ready to be used
as a mapped volume, the LU is set to accept I/Os and you can resume using the LU as a mapped
volume.
Turning On or Off Power Supply of Both local and external arrays
This section explains how to turn on or off the power supply of both the local and external array using
XP Business Copy Software.
To turn OFF the power supply of both arrays:
1. Stop all read or write I/Os to the local array.
2. Split all HP StorageWorks XP Business Copy pairs (pairsplit operation). For details on the pairsplit
operation, see HP StorageWorks XP Business Copy user guide for XP12000/XP10000 Disk Arrays
and SVS 200.
3. Turn off the power supply of the local array.
CAUTION:
Make sure that the power supply of the local array is completely off and then go on to the next
step.
4. Turn off the power supply of the external array.
CAUTION:
Make sure that the power supply of the external array is completely off.
Preparing for XP External Storage operations 34