Hitachi AMS2100 User Manual page 158

• All SnapShot pairs must be released (that is, the status of all LUs are
SMPL).
• All Data Pools must be deleted.
• All SnapShot Images (V-VOL) must be deleted.
To enable or disable SnapShot Data without rebooting
NOTE: If you enable/disable SnapShot 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 disabling or enabling
SnapShot.
1. To enable SnapShop using CLI, from the command prompt, register the
array in which the status of the feature is to be changed, then connect
to the array.
2. Execute the auopt to change the status (enable or disable).
Following is an example of changing the status from enable to disable.
If you want to change the status from disable to enable, enter enable
after the -st option.
•
% auopt -unit array-name -option SNAPSHOT -st disable
Are you sure you want to disable the option? (y/n [n]): y
The option has been set successfully.
In order to complete the setting, it is necessary to
reconfigure memory or reboo
t the subsystem.
Are you sure you want to start reconfigure memory? (y/n [n]): y
While in progress, performance degradation of host I/Os to the
array will occur.
Are you sure you want to continue? (y/n [n]): y
Memory reconfiguring started successfully.
%
3. Execute auopt to confirm whether the status has been changed. For
example:
•
% auopt -unit array-name -refer
Option Name
SNAPSHOT
%
SnapShot Enable/Disable is complete.
B–8
Hitachi AMS 2000 Family Copy-on-Write SnapShot User Guide
Reconfigure Memory Status
Reconfiguring(10%)
Operations using CLI
Type Term
Permanent ---
Status
Disable