•
Unmount all file systems associated with volumes on the array.
Note:
The exact steps to stop host I/O operations depend on the host operating system and the
configuration, which are beyond the scope of these instructions. If you are not sure how to stop
host I/O operations in your environment, consider shutting down the host.
Attention:
Possible data loss – If you continue this procedure while I/O operations are
occurring, you might lose data.
6. If the storage array participates in a mirroring relationship, stop all host I/O operations on the
secondary storage array.
7. Wait for five minutes to allow any data in cache memory to be flushed to disk.
8. From the title bar of the Array Management Window, select Monitor > Reports > Operations
in Progress.
9. Wait for all operations shown on the Operations in Progress window to complete before
continuing with the next step.
10. Turn off power to the controller-drive tray.
11. Wait for all of the LEDs on the controller-drive tray to go dark.
12. Turn off power to each drive tray that is connected to the controller-drive tray.
13. Wait for two minutes for all of the drives to spin down.
Related tasks
Powering on the storage array
on page 22
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