Silicon Graphics InfiniteStorage 4000 Series, Configuring And Maintaining

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60 Configuring a Storage Array with Volume Groups
NOTE
The
capacity
parameter, the
owner
parameter, the
cacheReadPrefetch
parameter, the
segmentSize
parameter, the
trayLossProtect
parameter, the
drawerLossProtect
parameter, the
dssPreAllocate
parameter, and the
securityType
parameter are optional
parameters (indicated by the placement inside the square brackets). You can use one or
all of the optional parameters as needed to define your configuration. If you choose not
to use any of the optional parameters, the default values of the parameters are used for
your configuration.
The
userLabel
parameter is the name that you want to give to the volume. The
volume name can be any combination of alphanumeric characters, hyphens, and
underscores. The maximum length of the volume name is 30 characters. You must
enclose the volume name with double quotation marks (“ ”).
The
drives
parameter is a list of the drives that you want to use for the volume
group. Enter the tray ID and the slot ID of each drive that you want to use. Enclose the
list in parentheses, separate the tray ID value and the slot ID value of a drive with a
comma, and separate each tray ID and slot ID pair with a space. This example shows
you how to enter tray ID values and slot ID values:
(1,1 1,2 1,3 1,4 1,5)
The
capacity
parameter defines the size of the volume. You do not need to assign
the entire capacity of the drives to the volume. Later, you can assign any unused space
to another volume.
The
owner
parameter defines the controller to which you want to assign the volume.
If you do not specify a controller, the controller firmware determines the volume
owner.
The
cacheReadPrefetch
parameter and the
segmentSize
parameter are the
same as those described for the
autoConfigure storageArray
command.
The
trayLossProtect
parameter turns on or turns off tray loss protection for the
volume group. (For a description of how tray loss protection works, see the topic
“
Tray Loss Protection
.” )
Example of Creating Volumes with User-Assigned Drives
c:\...\sm X \client>smcli 123.45.67.88 123.45.67.89

-c “create volume drives=(1,1 1,2 1,3 2,1 2,2 2,3)

raidLevel=5 userLabel=\”Engineering_1\” capacity=20GB

owner=a cacheReadPrefetch=TRUE segmentSize=128;”
The command in this example automatically creates a new volume group and a
volume with the name Engineering_1. The volume group uses RAID Level 5. The
command uses six drives to construct the volume group. The capacity of the volume
will be 20 GB, which is distributed across all six drives. If each drive has a capacity of
73 GB, the total capacity of all the assigned disks is 438 GB.