BC4000 Series RAID Controllers
User Manual
02/13/06
B ro ad c om C o r p or at i on
Page 130
Creating New Arrays: bcadm --create
Document
BC4000-UM100-R
C
REATING
N
EW
A
RRAYS
: bcadm --create
The
bcadm --create
or
bcadm -C
command allows you to create new arrays. You can partition and create as
many as eight arrays across all disks. You can use portions of disks to create arrays while other arrays are using
different portions of the same disks, but you can create a maximum of eight arrays.
S
YNTAX
The following <
raid_type
> attributes are available. The long and short formats for each attribute are given.
Notes:
•
Creation of arrays, even redundant arrays, allows users immediate access to the arrays.
•
If the system reboots, the creation process continues where it left off.
•
Array numbers are valid only for a given boot and may be different in the BIOS and drivers. If a
permanent label is required, use the labeling feature described in
“--name "name", -n "name"” on
page 131
.
•
In some circumstances, having more than eight arrays is possible and may appear to function
properly, but is not supported by Broadcom.
•
The array size of the new array is limited to 2.199 TB on some versions of Windows and Linux.
Please refer to your OS documentation for details on maximum array sizes.
Long form:
bcadm --create <raid_type> --disk <list>
[--size <size_mb>] [--sub-member <num>]
[--spare-disk <list>] [--no-sync] [--d-spare]
[--cache <r,rw,w,nc> [--max-size] [--name "name"]
[--priority <1...10>] [--preferred-id <64bit_hex>]
[--scan-array] [--leave-existing-data]
Short form:
bcadm -C <raid_type> -d <list>
[-s <size_mb>] [-sub <num>] [-sp <list>] [-ns] [-ds]
[-ca <r, rw, w, nc>] [-ms] [-n "name"] [-p <1...10>]
[-pid <64bit_hex>] [-sa] [-led]
--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
