Hitachi AMS2100 User Manual page 105

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7. A reboot array message displays confirming that this optional
feature is uninstalled. Click the check box, then click Reboot
Array.
The restart is not required if it is done when validating the
function. However, if TCE was completed before SnapShot was
installed, the dialog box, which asks whether or not to do the
restart, is not displayed because the restart was done to ensure
the resource for the data pool in the cache memory. When the
restart is not needed, the installation of the SnapShot function is
completed.
If the array restarts because of a spin-down instruction when
Power Saving, the spin down may fail if the instruction is received
immediately after the array restarts. If the spin-down fails,
perform the spin-down again. Check that the spin-down
instruction has not been issued or has been completed (no RAID
group in the Power Saving Status of Normal(Command
Monitoring) exists) before restarting the array.
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NOTE: To uninstall the operated option, restart the array. The feature will
close upon restarting the array. The array cannot access the host until the
reboot is completed and the system restarts. Make sure that the host has
stopped accessing data before beginning the restart process. Restart
usually takes 6 to 25 minutes. If it does not respond after 25 minutes or
more, check the condition of the array.
Installing and enabling SnapShot
Hitachi AMS 2000 Family Copy-on-Write SnapShot User Guide
4-9