Installation guide

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Prints the maximum possible size for an array without actually
creating an array.
-n, --name
Identifies an array with a user-supplied name. The name can be up to
30 characters, but only 17 of those characters display in the BIOS.
-p, --priority
Sets the background initialization task priority from 1 to 10, with 10
being the highest priority. For redundant array types only.
-led, --leave-existing-data
Leaves the existing data on the disks untouched after the array is
created. This option can be used to try to recover user data when an
array has been accidentally deleted or the configuration information is lost
but the data is still intact. Unless you immediately recreate the array after
deleting it and no other tasks have been performed, the likelihood of
recovering data with this method is very low.
-d, --disk
A required qualifier used with the --create option to specify the disk or
disks to be included in the array.
-sa, --scan-array
Specifies that a background array scan should be continuously run
whenever the array is idle (Default is off).
-z, --zero
Zero the array in the foreground. This method is faster than doing a
background consistency verifies if the array is a redundant type. For non
redundant types the zero option can be used to verify all blocks in the
array can be accessed.
EXAMPLES
Example: Create a RAID5 set of the maximum possible size using
all disks.
rcadm -C --raid5 --disk *
Example: Create a RAID1 set of the maximum possible size, with
a spare disk and without a background initialization task.
rcadm -C --raid1 --spare-disk 3 --disk 1 2 --no-sync
Example: Print the maximum size a RAID5 array could be using
all disks without actually creating the array.
rcadm -C --raid5 --disk * --max-size