HP Configuring Arrays Reference Manual page 7

Procedure
Enable or disable a physical drive write cache
HP Drive Erase (replace the content of a physical drive or logical
drive with zeros or random 0 and 1)
Identify devices by causing their LEDs to flash
Move an array (copy all array data to a new array and then
delete the old array)
Optimize the controller performance for video
Re-enable a failed logical drive
Set the surface scan delay
Set the preferred controller for a logical drive (in systems that
support redundant controllers)
Shrink an array (restripe the data on an array to occupy fewer
physical drives, then remove the excess drives from the array)
Split a RAID 1 array or recombine a split array (offline only)
Scripting is the most efficient method for this task.
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2 The task is supported only from the Configuration screen.
ACU GUI ACU CLI
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Overview of array configuration tools 7
ACU Scripting
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