Manualshelf

HP StorageWorks External Storage XP user guide for the XP12000, XP10000, SVS200 (T1706-96009, October 2007)

ManualsBrandsHP ManualsStorageHP StorageWorks XP10000 Disk Array
31323334353637383940
2. Execute the Check Paths & Restore Vol.command.Forinstructions,seeChecking 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.commandchecksthedefined 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.
TurningOnorOffPowerSupplyofBothlocalandexternalarrays
This section explains how to turn on or off the power supply of both the local and external array using HP
StorageWorks Business Copy.
To turn OFF the power supply of both arrays:
1. Stop all read or write I/Os to the local array.
2. If you use NAS, stop the NAS Blade system. For details on how to stop the NAS Blade system,
see Troubleshooting NAS Blade systems that include external arrays.
3. Split all HP StorageWorks Business Copy pairs (pairsplit operation). For details on the pairsplit
operation, refer to HP StorageWorks Business Copy User’s Guide.
4. 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.
5. Turn off the power supply of the external array.
CAUTION:
Make sure that the power supply of the external array is completely off.
To turn ON the power supply of both arrays :
1. Turn on the power supply of the external array.
CAUTION:
Make sure that the power supply of the external array is completely on and then go on to the next step.
2. Turn on the power supply of the local array.
CAUTION:
Make sure that the power supply of the local array is completely on and then go on to the next step.
3. Resynchronize all HP StorageWorks Business Copy pairs (pairresync operations). For details on the
pairresync operation, refer to HP StorageWorks Business Copy User’s Guide.
4. If you use NAS, start the NAS Blade system. For details on how to start the NAS Blade system, see
Troubleshooting NAS Blade systems that include external arrays.
5. Start the read or write I/Os to the local array.
External Storage XP user guide
33