Enabling or disabling the array accelerator, Enabling a script to exit on error, Using the split mirror command – HP Smart Storage Administrator User Manual
Page 69
Operations 69
where <target> is a controller that supports drive write cache.
Example command:
=> ctrl slot=5 modify dwc=enable
Enabling or disabling the array accelerator
If the controller has an array accelerator, you can disable or enable it for specified logical drives.
NOTE:
Disabling the array accelerator for a logical drive reserves use of the accelerator cache
for other logical drives on the array. This feature is useful if you want the other logical drives to
have the maximum possible performance (for example, if the logical drives contain database
information).
Syntax:
<target> modify aa=enable|disable|?
where <target> is a logical drive.
Example command:
=> ctrl slot=3 ld 1 modify aa=enable
Enabling a script to exit on error
When a script encounters an error during execution, the exitonerror keyword enables the script to
decide whether to continue or to exit the application and return an exit code.
Syntax:
set [exitonerror=enable | disable]
Example commands:
set exitonerror=enable
set eoe=disable
show exitonerror
Using the Split Mirror command
The "splitmirror" command splits original RAID 1, RAID10 or ADM mirrored volumes into individual RAID0
volumes. The command will also split volumes into RAID1 or RAID10 volumes if ADM, and can be used to
recombine the volumes. Optionally, the command will hide the new volume from the OS.
Syntax
<target> splitmirror
action=[splitwithbackup|remirror|rollback|activatebackup]
where <target> is the array.
Actions
The "splitwithbackup" action splits an array consisting of one or more RAID 1, RAID 1+0, RAID 1 (ADM), or
RAID 10 (ADM) and creates two arrays: A primary array and a backup array. The new arrays have the
following characteristics:
•
If the original array contained RAID 1 or RAID 1+0 drives, the primary array will contain RAID 0 drives.
•
If the original array contained RAID 1 (ADM) drives, the primary array will contain RAID 1 drives.
•
If the original array contained RAID 10 (ADM) drives, the primary array will contain RAID 1+0 drives.