HP Surestore Disk Array FC60 HP SureStore E Disk Array FC60 - (English) Advanc - Page 291
Command Examples, amcfg -L A:2 -d 1:1
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Table 38 Command Options for Binding a LUN (cont'd) Option Description Default -force Allows you to bind a LUN using two or more disks in the same enclosure or on the same channel. This option allows you to override the high-availability protection designed into the LUN binding process. Using this option you can specify more than one disk per enclosure or channel. You can also use this option to create a RAID 5 LUN that includes more than six disks. If not specified, you cannot bind a LUN using multiple disks in the same enclosure. You also cannot bind a RAID 5 LUN with more than six disks. -s segmentsize Indicates the stripe segment size in Kbytes. The stripe segment size must be a multiple of the current cache page size setting. For example, if the cache page size is set to 4 Kbytes (8 blocks), valid settings would be 4, 8, 16, 32, 64, 128, etc. If not specified, the stripe segment size defaults to the same block size used for the cache pages (4 Kbytes or 16 Kbytes). The default cache page size is 4 Kbytes. Command Examples The following example binds a 5-disk, RAID 5 LUN on disk array 0000005EBD20. The disk array includes five disk enclosures, each on its own channel. The LUN uses a stripe segment size of 16 Kbytes, is assigned LUN number 2, and is owned by controller A. Note that each disk is in a different enclosure for high availability, and that there are no spaces between the individual disk parameters. amcfg -L A:2 -d 1:1,2:2,3:1,4:4,5:3 -r 5 -s 16 0000005EBD20 The following example binds a RAID 0/1 LUN on disk array rack_51. The LUN is owned by controller B, is assigned LUN number 4, and uses a stripe segment size of 4 Kbytes. Note that the disks selected create mirrored pairs that are in separate enclosures (1:3, 2:3 and 1:4, 2:4). This maintains high availability. Although RAID 1 is specified, the inclusion of more than two disks causes the disk array to create a RAID 0/1 LUN. amcfg -L B:4 -d 1:3,1:4,2:3,2:4 -r 1 -s 4 rack_51 Managing the Disk Array on HP-UX Managing the Disk Array Using Array Manager 60 291