Appendix D: Using the Array Configuration Utility for DOS ● 110
For example:
StripeSize=256
Type Keyword
Type is a required keyword, indicating the array type. There is no default value. The possible
values: Volume, RAID0, RAID1, RAID5, RAID10, or RAID50.
Depending on the RAID levels supported by your RAID controller, additional possible values
are: RAID1E, RAID5EE, RAID6, RAID60.
Wait Keyword
Wait is an optional keyword that you can use to tell the ACU to allow the ACU to continue
while the Build/Verify or Clear completes in the background; specify Wait=No. Otherwise, the
ACU waits by default.
If the host is powered off before the Build/Verify or Clear process completes and is then
restarted, the process resumes without any user intervention.
For example:
Wait=Yes
Wait=No
WriteCache Keyword
The WriteCache keyword indicates whether write caching is used for this array if write caching
is supported for the system. Possible values are as follows:
● Ye s (default)—Enable the write cache.
● No—Disable the write cache.
Setting an array’s WriteCache keyword to Yes might result in data loss or corruption during a
power failure.
For example:
WriteCache=Yes
ACU Error Codes
When the ACU detects an error, it reports the error and exits immediately. If a log file is
specified, the ACU writes the error code to the log file. Otherwise, it displays the error code on
the screen.
The possible error messages returned by the ACU are listed in this table.
Code Description
0 ACU ran without changes—ACU exited with no errors (success) and no report is required.
1 No controller found.
2 Syntax or logical error in the script file—The ACU encountered an invalid command or
keyword in the specified script file.
3 Unable to open file.
4 Error in the command line parameters—You passed an invalid command-line switch to the
ACU. (See
Running the ACU Using Scripts
on page 105
for a list of valid command-line
switches.)
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