HP MSA 1040 HP MSA 1040 CLI Reference Guide (762782-001, March 2014) - Page 98

expand vdisk Description Adds disks to a vdisk to expand its storage capacity. The new disks must be the same type as disks already in the vdisk and should also have the same capacity. NOTE: If you upgraded from an earlier release that did not distinguish between enterprise and midline SAS disks, you might have vdisks that contain both types of disks. For those vdisks, you can designate either or both types of disks for expansion. If-through replacement of spares or failed disks-the vdisk is changed to contain only one type of disk, you will only be able to add disks of that type to the vdisk. The expansion capability for each supported RAID level is: RAID level Expansion capability Maximum disks NRAID Cannot expand. 1 0, 3, 5, 6 Can add 1-4 disks at a time. 16 1 Cannot expand. 2 10 Can add 2 or 4 disks at a time. 16 50 Can expand the vdisk one RAID-5 sub-vdisk at a 32 time. The added RAID-5 sub-vdisk must contain the same number of disks as each original sub-vdisk. IMPORTANT: Vdisk expansion cannot be stopped and can take days to complete, depending on disk type, RAID level, and other factors. Before starting a vdisk expansion, see the HP website http://www.hp.com/support/msa2040/BestPractices. Before starting the expansion, ensure no other vdisk utilities are running on the vdisk. If another operation is in progress, the expansion cannot start. Syntax expand vdisk disks disks [prompt yes|no] vdisk Parameters disks disks IDs of the disks to add. For disk syntax, see "Command syntax" (page 20). prompt yes|no Optional. Specifies an automatic response to the confirmation prompt: • yes: Allow the command to proceed. • no: Cancel the command. If this parameter is omitted, you must manually reply to the prompt. vdisk The name or serial number of the vdisk to expand. For vdisk syntax, see "Command syntax" (page 20). 98