Dell PowerVault MD3260i - Manual (Page 42)

The diskGroup parameter is the number of the disk group in which you want to create a new virtual disk. If you do not
know the disk group numbers on the storage array, you can use the show allVirtualDisks summary
command. This command displays a list of the virtual disks and the disk groups to which the virtual disks belong.
The userLabel parameter is the name you want to give to the virtual disk. The virtual disk name can be any
combination of alphanumeric characters, hyphens, and underscores. The maximum length of the virtual disk name is 30
characters. You must enclose the virtual disk name with quotation marks (" ").
The freeCapacityArea parameter defines the free capacity area to use for the virtual disk. If a disk group has
several free capacity areas, you can use this parameter to identify which free capacity area to use for virtual disk
creation. You do not have to assign the entire capacity of the physical disks to the virtual disk. Assign any unused space
to another virtual disk at another time.
The userLabel, capacity, owner, and segmentSize parameters are the same as in the previous versions of
the create virtualDisk command.
Enclosure Loss Protection
The enclosureLossProtect parameter is a boolean switch that turns enclosure loss protection on or off. To work
properly, each physical disk in a virtual disk group must be in a separate enclosure. Enclosure loss protection is set
under the following conditions:
• You assign the physical disks.
• The RAID controller module assigns the physical disks.
The following table shows possible results for the enclosureLossProtect parameter. The results depend on
whether you assign the physical disks or the RAID controller module assigns the physical disks.
Method enclosureLossProtect= TRUE enclosureLossProtect=FALSE
You assign the physical disks. If you select more than one physical
disk from any one enclosure, the
storage array returns an error. The storage array performs the
operation, but the created disk group
does not have enclosure loss
protection.
The RAID controller module firmware
assigns the physical disks. The storage array posts an error if the
RAID controller module firmware
cannot provide physical disks to
ensure that the new disk group has
enclosure loss protection. The storage array performs the
operation even if it means that the
disk group might not have enclosure
loss protection.
The enclosureLossProtect parameter is not valid when creating virtual disks on existing disk groups.
Using The Auto Configure Command
The autoConfigure storageArray command creates the disk groups on a storage array, the virtual disks in the
disk groups, and the hot spares for the storage array. When you use the autoConfigure storageArray
command, define the following parameters:
• Type of physical disks (Serial Attached SCSI [SAS])
• RAID level
• Number of physical disks in a disk group
• Number of disk groups
• Number of virtual disks in each disk group
• Number of hot spares
42