Datasheet

B-34
DOS Utilities
Playback and Record Notes
When using ACU in playback or record mode, note the following:
■ When recording an array, the ACU does not create a Wait
keyword within an array’s definition block in a script file.
When playing back any script file generated from the ACU
record option, the ACU uses the default setting
Wait=Yes when
creating an array unless you first edit the script file and include
a
Wait=No line in the array’s definition block.
■ When recording a RAID 10, the ACU cannot map spare drives
assigned to the individual mirror sets to the
HotspareDrives
list in the resultant script file. The script file syntax allows only a
single list of spare drives to be assigned to any given array.
In this case, the ACU creates the
HotspareDrives list using all
the drives assigned to the lower-level mirror set arrays within
the RAID 10. When playing back this script, the ACU assigns all
the drives in the HotspareDrives list to all the mirror set arrays
making up the RAID 10. However, this might not exactly match
the original spare drive assignments to the mirror set arrays.
■ When recording an array, the ACU creates a separate channel
definition block for each channel on the controller. Each block
includes all the property keywords and values reflecting the
channel’s current settings. Edit the script file as necessary to
change any of the channel’s settings or delete keywords to ensure
the controller’s corresponding channel setting is not changed.
Invoking the ACU and Using a Script
The following MS-DOS command invokes the ACU and creates
arrays on controller 1 based on the array properties defined in the
script file
A:\RAID.ACU . It also configures the properties of
Channel 0 and saves a log of the operation in the log file
C:\RAID.LOG .
A:\> ACU /P A:\RAID.ACU /L C:\RAID.LOG /C1