HP Surestore Disk Array FC60 HP SureStore E Disk Array FC60 Service Manual (A5 - Page 313

Option Description Default -c capacity Specifies the capacity of the LUN. Capacity can be specified in megabytes (M) or gigabytes (G) by appending the appropriate letter to the capacity value. By default, the LUN will use the entire capacity available from all the disks. It is possible to specify a lower value for LUN capacity, but this will result in unused disk capacity. Any capacity not included in the LUN will be inaccessible and is essentially wasted capacity. If not specified, the LUN capacity will equal the total available capacity of the specified disks. If a capacity value is specified but no letter is appended, gigabytes will be assumed. -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. -NF Indicates that the new LUN should not be If not specified, the LUN will be formatted. formatted. NOTE: This option is not intended for customer use and is not documented in the amcfg man page. -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. Managing the Disk Array on HP-UX 313