HP MSA 1040 HP MSA 1040 CLI Reference Guide (762782-001, March 2014) - Page 66
create vdisk, For NRAID and RAID 1 - smu reference guide
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create vdisk Description Creates a vdisk using the specified RAID level, disks, and spares. When you create a vdisk, all its disks must be the same type: either enterprise SAS or midline SAS. For each RAID level, the minimum and maximum numbers of disks supported are: • NRAID: 1 • RAID 0: 2-16 • RAID 1: 2 • RAID 3: 3-16 • RAID 5: 3-16 • RAID 6: 4-16 • RAID 10: 4-16 • RAID 50: 6-32 For best practices for creating vdisks, see the SMU Reference Guide. Syntax create vdisk level nraid|raid0|r0|raid1|r1|raid3|r3|raid5|r5|raid6|r6|raid10|r10 |raid50|r50 disks disks [assigned-to a|b|auto] [spare disks] [chunk-size 16k|32k|64k|128k|256k|512k] [mode online|offline] name Parameters level nraid|raid0|r0|raid1|r1|raid3|r3|raid5|r5|raid6|r6|raid10|r10 |raid50|r50 Specifies the RAID level. disks disks IDs of the disks to include in the vdisk. RAID 10 requires a minimum of two RAID-1 sub-vdisks each having two disks. RAID 50 requires a minimum of two RAID-5 sub-vdisks each having three disks. For disk syntax, see "Command syntax" (page 20). assigned-to a|b|auto Optional. For a system operating in Active-Active ULP mode, this specifies the controller to own the vdisk. To let the system automatically load-balance vdisks between controllers, use auto or omit this parameter. In Single Controller mode, this parameter is ignored; the system automatically load-balances vdisks in anticipation of the insertion of a second controller in the future. spare disks Optional. IDs of 1-4 dedicated spares to assign to a RAID 1, 3, 5, 6, 10, or 50 vdisk. For disk syntax, see "Command syntax" (page 20). chunk-size 16k|32k|64k|128k|256k|512k Optional. The amount of contiguous data, in KB, that is written to a vdisk member before moving to the next member of the vdisk. For RAID 50, this option sets the chunk size of each RAID-5 subvdisk. The chunk size of the RAID-50 vdisk is calculated as: configured-chunk-size x (subvdisk-members - 1). For NRAID and RAID 1, chunk-size has no meaning and is therefore not applicable. The default size is 512k. mode online|offline Optional. Specifies whether the vdisk is initialized online or offline. • online: Enables you to use the vdisk immediately after creating it while it is initializing. Because online uses the verify method to create the vdisk, it takes longer to complete initializing than offline. Online initialization is fault-tolerant. This option is the default. • offline: You must wait for the vdisk initialization process to finish before using the vdisk; however, offline takes less time to complete initializing than online. 66 Alphabetical list of commands