HP Surestore Disk Array 12h - And FC60 Service Manual page 313

Option Description
-c capacity Specifies the capacity of the LUN. Capacity
can be specified in megabytes (M) or
gigabytes (G) by appending the appropriate
letter to the capacity value.
By default, the LUN will use the entire
capacity available from all the disks. It is
possible to specify a lower value for LUN
capacity, but this will result in unused disk
capacity. Any capacity not included in the
LUN will be inaccessible and is essentially
wasted capacity.
-force Allows you to bind a LUN using two or more
disks in the same enclosure or on the same
channel. This option allows you to override
the high-availability protection designed into
the LUN binding process. Using this option
you can specify more than one disk per
enclosure or channel. You can also use this
option to create a RAID 5 LUN that includes
more than six disks.
-NF Indicates that the new LUN should not be
formatted.
NOTE: This option is not intended for
customer use and is not documented in the
amcfg man page.
-s segmentsize Indicates the stripe segment size in Kbytes.
The stripe segment size must be a multiple
of the current cache page size setting. For
example, if the cache page size is set to 4
Kbytes (8 blocks), valid settings would be 4,
8, 16, 32, 64, 128, etc.
Default
If not specified, the LUN capacity
will equal the total available
capacity of the specified disks.
If a capacity value is specified but
no letter is appended, gigabytes will
be assumed.
If not specified, you cannot bind a
LUN using multiple disks in the
same enclosure. You also cannot
bind a RAID 5 LUN with more than
six disks.
If not specified, the LUN will be
formatted.
If not specified, the stripe segment
size defaults to the same block size
used for the cache pages (4 Kbytes
or 16 Kbytes). The default cache
page size is 4 Kbytes.
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