Workflow for switching off the power supply, Power supply and existing shared memory – HP XP7 Storage User Manual
Page 136

3.
In the Delete LDEVs window, complete the following and then click Apply:
•
For Task Name, type a name for the task.
Character and symbol limit: 32
Allowable characters and symbols: All alphanumeric except \ / : , ; * ? " < > |
Default: date-task name
•
For Go to tasks window for status, select to open the task window.
Default: Cleared
The V-VOL is deleted.
Related topics
•
For more information about the Delete LDEVs window, see the HP XP7 Provisioning for Open
Systems User Guide.
•
“Releasing Fast Snap pairs” (page 87)
.
•
“Deleting Fast Snap pairs” (page 85)
.
Maintaining pairs by switching off the storage system power and replacing
the microcode
You can maintain pairs when you switch off the storage system power and when you replace the
microcode.
For more information about:
•
Switching off the power supply, see
“Workflow for switching off the power supply” (page 136)
•
Preventing the loss of pool and pair data and replacing microcode, see
of pool and pair data” (page 137)
Workflow for switching off the power supply
Use the following workflow to switch off the power supply:
1.
Stop the host I/O.
2.
Switch off the power supply (see
“Power supply and existing shared memory” (page 136)
and
“Power supply and losing data in shared memory” (page 137)
).
3.
Restore the power.
4.
Use the pools and FS pairs's depending on the following:
•
The power supply and having data in SM (see
“Power supply and existing shared memory”
).
•
The power supply and losing data in SM (see
“Power supply and losing data in shared
).
Related topics
•
About creating pairs, see
“Creating Fast Snap pairs” (page 64)
•
About creating pools, see
“Creating Fast Snap data pools” (page 38)
.
Power supply and existing shared memory
After you switch off the power supply, you can use the pools and pairs if data in the SM exists
and the data is not blocked. The storage system checks the pool’s and the pool-VOL’s status. If the
pool-VOLs are blocked at the time you switch off the power supply, the pool is blocked and the
pairs are suspended (“PSUE” status).
136
Monitoring and maintaining Fast Snap