Quick Reference Guide

Mandatory Options
and Arguments
Optional Parameters Valid Parameters
Arguments
Description
read requests are accessing
sequential sectors of the disk and can
initiate read-ahead if necessary.
• nra — (No-Read-Ahead) The
controller does not read sequential
sectors of the disk when seeking data.
NOTE: The ra, ara, and nra options are
supported on the following RAID
controllers only:
• PERC 5/E Adapter, PERC 5/I
Integrated, PERC 5/i Adapter
• PERC 6/i Integrated, PERC 6/i
Adapter, PERC 6/E Adapter
• rc — (Read-Caching) Enables
read caching.
• nrc — (No-Read-Caching)
Disables read caching.
-ctrl -ac=cvd -
c=id -ad=
ch:targ,ch:tar
g, ... [or
ch:targ:encl,.
..]
or
controller
action=
createvdisk
controllerid=
id adisk=
channel:target
: lun,...
channel:target
: lun,...
[or
channel:target
:
enclosure,...]
-sp or
spanlength
<number>
Creates a virtual disk comprised of the
properties supplied. The -spoption is optional
and can be the added to the command line in
any order after the mandatory option
combination.
NOTE: Spanlength is applicable only for
RAID 50 and RAID 60. The minimum
permissible spanlength value for RAID 50
is 3 and for RAID 60 is 4. The number of
array disks for creating a virtual disk
should not be a prime number and should
be divisible by the specified spanlength.
For SCSI controllers, the value of LUN should
always be 0.
For SAS controllers, the value of enclosure
can be non-zero, in which case you must
specify values for channel, target, and
enclosure.
-ctrl -ac=cvd -
c=id -ad=
ch:targ,ch:tar
g, ... [or
ch:targ:encl,.
..]
or
controller
action=
createvdisk
controllerid=
id adisk=
channel:target
: lun,
-ssz or
stripesize
<number>
Sets the stripe size for the virtual disk. The
stripe size is the amount of array disk space
used on each array disk included in the stripe.
A valid argument is a number that is less than
the size of the virtual disk. The -sszoption is
optional and can be added to the command
line in any order after the mandatory option
combination. However, do not specify a unit
for stripe size when creating virtual disks. The
unit is always displayed in KB.
For SCSI controllers, the value of LUN should
always be 0.
For SAS controllers, the value of enclosure
can be non-zero, in which case you must
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