AMCC 9590SE-4ME manual Supported Stripe Sizes

Chapter 2. CLI Syntax Reference

/cx add type=<RaidType> disk=<p:-p> [stripe=Stripe] [noscan] [group=<3456>] [nocache] [autoverify] [ignoreECC] [name=string] [storsave=<protectbalanceperform>]

This command allows you to create a new unit on the specified controller. You specify type, disks, and optional stripe size. By default the host operating system will be informed of the new block device, write cache will be enabled, and a storsave policy of protect will be set. In case of RAID 50, you can also specify the layout of the unit by specifying the number of disks per disk group with the group attribute.

/cx is the controller name, for example /c0, /c1, and so forth.

type=RaidType specifies the type of RAID unit to be created. Possible unit types include raid0, raid1, raid5, raid10, raid50, single, spare, and JBOD (7000/8000 only).

Example: type=raid5

When a new unit is created, it is automatically assigned a unique serial number. In addition, users can assign the unit a name.

Note: The unit’s serial number cannot be changed.

disk=p:-pconsists 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=0:1:2- 5:9:12 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 5: Supported Stripe Sizes

Model	R0	R1	R5	R10	Spare	Single
9K	16	N/A	16	16	N/A	N/A
	64		64	64
	256		256	256

36 3ware Serial ATA RAID Controller CLI Guide for the Power Mac G5