User Manual
BC4000 Series RAID Controllers
02/13/06
B ro ad c om C o r p or at i on
Document
BC4000-UM100-R
Copying Arrays: bcadm --create-copy
Page 137
The following <
raid_type
> attributes are available. The long and short formats for each attribute are given.
O
PTIONS
The following options are available for the
bcadm --create-copy
command. The long and short formats for
each option are given.
--sub-member, -sub
Specifies the number of disks in each submember of a RAID10n or RAID50 array.
--spare-disk, -sp
Specifies the dedicated spare disk or disks to assign, with a maximum of four.
--size, -s
Specifies the size of the array in MegaBytes. If you do not use this option, the same size as the source array
is used by default.
--d-spare, -ds
Enables distributed sparing for RAID5, RAID50, RAID10, or RAID10n arrays.
--unlink, -ul
Unlinks the array copy from the source array at the conclusion of the creation operation. The unlink takes place
on reboot. If this option is not selected, the unlink can later be done “manually,” using the
bcadm --manage
-ul
option described in
“--unlink, -ul” on page 127
. The array remains hidden, and must be manually unhidden.,
using the
bcadm --manage -uh
option described in
“--unhide, -uh” on page 127
.
--cache, -ca
Specifies a cache setting for the array(s): read cache
<r>
, read and write-back cache
<rw>
, write-back cache
<w>
, or no cache
<nc>
. The default is read and write-back cache
<rw>
.
--linear
-l
Single disk or concatenation of disks (Volume)
--volume
-v
Single disk or concatenation of disks (Volume)
--raid0
-r0
Stripe of two or more disks
--raid1
-r1
Mirror of two disks
--raid1n
-r1n
Mirror of three or more disks
--raid10
-r10
Stripe set of mirror sets
--raid10n
-r10n
Stripe set of n-way mirror sets
--raid5
-r5
Stripe set with parity, three to sixteen disks
--raid50
-r50
Stripe set of RAID5 sets