3Ware 9650SE-2LPB-10 CLI Guide - Page 47

Controller Object Commands disk=p:-p consists of a list of ports (disks) to be used in the construction of the specified unit type. One or more ports can be specified. Multiple ports can be specified using a colon (:) or a dash (-) as port index separators. A dash indicates a range and can be mixed with colons. For example disk=0:1:25:9:12 indicates port 0, 1, 2 through 5 (inclusive), 9 and 12. stripe=Stripe consists of the stripe size to be used. The following table illustrates the supported and applicable stripes on unit types and controller models. Stripe size units are in K (kilobytes). If no stripe size is specified, 64K is used by default, if applicable. If you need to change the stripe size after the unit is created, you can do so my migrating the unit. Table 7: Supported Stripe Sizes (KB) Model 7K/8K R0 R1 R5 R6 R10 JBOD Spare R50 Single 64 N/A 64 N/S 64 N/A N/A N/S N/S 128 128 256 256 512 512 1024 1024 9000a 16 N/A 16 N/S 16 N/A N/A 16 N/A 64 64 64 64 256 256 256 256 9650SE 16 N/A 16 16 N/A N/A 16 N/A 64 64 64 64 64 256 256 256 256 a. Models 9500S, 9550SX, and 9590SE group=3|4|5|6|7|8|9|10|11|12 indicates the number of disks per group for a RAID 50 type. (This attribute can only be used when type=raid50.) Recall that a RAID 50 is a multi-tier array. At the bottom-most layer, N number of disks per group are used to form the RAID 5 layer. These RAID 5 arrays are then integrated into a RAID 0. This attribute allows you to specify the number of disks in the RAID 5 level. Valid values are 3 through 12. Note that a sufficient number of disks are required for a given pattern or disk group. For example, given 6 disks, specifying 3 will create two RAID 5 arrays. With 12 disks, specifying 3 will create four RAID 5 arrays under the RAID 0 level. With only 6 disks a grouping of 6 is not allowed, as you would basically be creating a RAID 5. www.3ware.com 41