Hitachi AMS2100 User Manual page 109

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7. A message appears confirming that this optional feature is set.
Mark the check box and click Reboot Array.
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. When 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 set the operated option, restart the array. The feature will not
set 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.
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8. A message appears stating that the restart is successful. Click
Close.
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Enabling or disabling of SnapShot is now complete.
Installing and enabling SnapShot
Hitachi AMS 2000 Family Copy-on-Write SnapShot User Guide
4-13