Avago Technologies 3ware SAS 9750-16i4e - Manual (Page 61)

Controller Object Commands
www.lsi.com/channel/products 53
/cx add type=<RaidType> disk=<p:-p> [stripe=size]
[noscan] [group=<3|4|5|6|7|8|9|10|11|12|13|14|15|16>]
[nowrcache] [nordcache| rdcachebasic]
[autoverify] [noqpolicy] [ignoreECC] [name=string]
[storsave=<protect|balance|perform>]
[rapidrecovery=all|rebuild|disable]
[v0=n|vol=a:b:c:d]
The /cx add command allows you to create a unit on the specified controller.
You specify RAIDType, disks, and optional stripe size. By default, the new
unit has the following options: 256k stripe size, autoverify is enabled, write
cache is enabled, Intelligent read cache is enabled, a storsave policy of
balance is set, a Rapid RAID Recovery policy of All is set, and the drive
queuing policy is enabled. In case of RAID 50, you can also specify the layout
of the unit by specifying the number of disks per disk group with the
group
attribute.
/cx is the controller name, for example /c0, /c1, and so forth.
type=RaidType specifies the type of RAID unit to be created. Possible unit
types include raid0, raid1, raid5, raid6 , raid10, raid50, single, and spare.
Example: type=raid5
Newly created units automatically receive a unique serial number. In addition,
you can assign the unit a name.
disk=p:-p consists of a list of ports or virtual ports (disks) to be used in the
construction of the specified unit type. You can specify one or more ports.
Indicate multiple ports by using a colon (:). Indicate a range of ports by using
a dash. You can combine dashes and colons, if appropriate. For example
disk=0:1:2-5:9:12 indicates port 0, 1, 2 through 5 (inclusive), 9, and 12.
Note: By default, write cache is enabled. However, if the controller does not have a
BBU installed, a message warns you that without a BBU, you could experience a
possible loss of data in the event of a power failure.
Enabling write cache improves write performance greatly, but you are at risk of
losing data if a power failure occurs when data is still in the cache. A recommended
practice is to use a BBU and uninterruptible power supply (UPS) to safeguard
against power loss.
Note: You cannot change the unit’s serial number.