Powering off the local disk arrays, Powering off external disk arrays, External storage xp operations – HP StorageWorks XP Remote Web Console Software User Manual
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External Storage XP for the XP10000/XP12000
NOTE:
When executing the Check Paths & Restore Vol. command, if the external LU is ready to be
restored as the mapped LU, the external LU is set to Available. However, if the external LU is not ready to
be restored, the external LU status remains as Blocked.
NOTE:
When executing the Check Paths & Restore Vol. command, if the external LU is ready to be
restored as the mapped LU, the external LU is set to accept the I/Os and you can resume using the external
LU as a mapped LU. However, if the external LU is not ready to be restored, the external LU status remains
as Blocked.
CAUTION:
To use the mapped external LU again after executing the Disconnect Subsystem command,
execute the Check Paths & Restore Vol. command.
Powering off the local disk arrays
CAUTION:
The Disconnect Subsystem command is not supported for this version. Wherever this section
mentions execution of the Disconnect Subsystem command, please execute the Disconnect Volume
command for each external disk array volume.
1.
Stop all read and write I/O operations to external LUs.
2.
Execute the Disconnect Subsystem command for the external disk array containing the mapped
external LU (”
Disconnecting external disk arrays or external LUs
All subsequent I/O operations to the external LU are stopped and all data in the local disk array cache
memory is written (de-staged) to the external LU.
3.
Perform any other operations that are required before turning off the local disk array.
4.
Turn off the local disk array power supply.
Powering off external disk arrays
1.
Stop all read and write I/O operations to external LUs mapped as a local disk array internal XP LDEV
and located in the external disk array you want to turn off.
2.
Execute the Disconnect Subsystem command for the external disk array (”
All subsequent I/O operations to the external LU are stopped and all data in the local disk array cache
memory is written (de-staged) to the external LU (all data is destaged).
3.
Perform any other operations that are required before turning off the external disk array.
4.
Turn off the external disk array power supply.
Powering on local disk arrays or external disk arrays
1.
Power on the external disk array.
2.
Power on the local disk array.
3.
Execute the Check Paths & Restore Vol. command (”
Checking connection status and resuming external
LU operations (Check Paths & Restore Vol.)
” on page 69) to resume using an external LU that has been
disconnected using the Disconnect Subsystem command but where mapping information still exists.
External Storage XP operations
To use External Storage XP, you may also need to work with the LU Operation, Port Operation, and Flex
Copy tabs. Selecting a tab displays its corresponding pane.
This section includes the following topics:
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