The raidctl Man Page

C H A P T E R 11

The raidctl Man Page

This chapter provides a listing of the raidctl man page.

The Man Page for `raidctl`

man raidctl

System Administration Commands raidctl(1M)

NAME

raidctl - RAID hardware utility

SYNOPSIS

raidctl -C “disks” [-r raid_level] [-z capacity] [-s stripe_size] [-f] controller

raidctl -d [-f] volume

raidctl -F filename [-f] controller...

raidctl -a {set | unset} -g disk {volume | controller}

raidctl -p “param=value” [-f] volume

raidctl -c [-f] [-r raid_level] disk1 disk2 [disk3...]

raidctl -l -g disk controller

raidctl -l volume

raidctl -l controller...

raidctl [-l]

raidctl -S [volume | controller]

raidctl -S -g disk controller

raidctl -h

DESCRIPTION

The raidctl utility is a hardware RAID configuration tool that supports different RAID controllers by providing a CLI (command-line interface) to end-users to create, delete or display RAID volume(s). The utility can also used to set properties of a volume, assign hot-spare (HSP) disks to volumes or controllers, and to update firmware/code/BIOS for RAID controllers.

The raidctl utility requires privileges that are controlled by the underlying file-system permissions. Only privileged users can manipulate the RAID system configuration. If a non-privileged user attempts to run raidctl, the command fails with an exit status of 1.

The raidctl utility defines a set of command line options to provide management for full feature RAID controllers. Since the supported features may vary with different RAID controllers, not all options are supported for a given RAID controller. The user can use raidctl to list the type of a given controller and the firmware version to determine the supported features.

Currently, raidctl supports the following RAID controllers:

- LSI1020, LSI1030, LSI1064, and LSI1068 SCSI HBAs, that are maintained by the mpt driver, on X86-32/64 and SPARC platforms.

OPTIONS

The following options are supported:

-C “disks” [-r raid_level] [-z capacity] [-s stripe_size] [-f] controller

Create a RAID volume using specified disks.

When creating a RAID volume using this option, the identity of the newly created volume is automatically generated and raidctl reports it to the user.

The argument specified by this option contains the elements used to form the volume that will be created. Elements can be either disks or sub-volumes, where disks are separated by space(s) and a sub-volume is a set of disks grouped by parenthesis. All disks should be in C.ID.L expression (for example, 0.1.2 represents a physical disk of channel 0, target id 1, and logical unit number 2). The argument must match the RAID level specified by the -r option, even if it’s omitted. This means the argument can only be:

for RAID 0	At least 2 disks
for RAID 1	Only 2 disks
for RAID 1E	At least 3 disks
for RAID 5	At least 3 disks
for RAID 10	At least 2 sub-volumes, each sub-volume must be formed by 2 disks
for RAID 50	At least 2 sub-volumes, each sub-volume must be formed by at least 3 disks, and the disk amount in each sub-volume should be the same

For example, the expression “0.0.0 0.1.0” means that the 2 specified disks form a RAID volume, which can either be a RAID 0 or a RAID 1 volume. “(0.0.0 0.1.0)(0.2.0 0.3.0)” means that the first 2 disks and the last 2 disks form 2 sub-volumes, and that these 2 sub-volumes form a RAID 10 volume. See the EXAMPLES section for more samples.

The -r option specifies the RAID level of the volume that will be created. Possible levels are 0, 1, 1E, 5, 10, 50. If this option is omitted and only two disks are listed, raidctl creates a RAID 1 volume by default--otherwise, it fails.

The -z option specifies the capacity of the volume that will be created. The unit can be tera-bytes, giga-bytes, or mega-bytes (for example, 2t, 10g, 20m, and so on). If this option is omitted, raidctl calculates the maximum capacity of the volume that can be created by the specified disks and uses this value to create the volume.

The -s option specifies the stripe size of the volume that will be created. The possible values are 512, 1k, 2k, 4k, 8k, 16k, 32k, 64k, or 128k. If this option is omitted, raidctl chooses an appropriate value for the volume (for example, 64k).

In some cases, the creation of a RAID volume may cause data on specified disks to be lost (for instance, on LSI1020, LSI1030, LSI1064, or LSI1068 HBAs), and raidctl prompts the user for confirmation about the creation. Use the -f option to force the volume creation without prompting the user for confirmation.

The controller argument is used to identify which RAID controller the specified disks belongs. The -l option can be used to list the controller’s ID number.

-d [-f] volume

Delete the RAID volume specified as volume. The volume is specified in canonical form (for example, c0t0d0).

When a volume is deleted, all data is lost. Therefore, unless the -f option is specified, raidctl prompts the user for confirmation before deleting the volume.

When a RAID 1 volume is deleted from a LSI1020, LSI1030, LSI1064, or LSI1068 HBA, the primary and secondary disks are “split”. If the volume was in SYNCING state, the primary will contain the data, and the secondary will not. If the volume state was OPTIMAL, both disks will contain a complete image of the data.

-F filename [-f] controller...

Update the firmware running on the specified controller(s). The raidctl utility prompts the user for confirmation of this action, unless the -f option is provided.

-a {set | unset} -g disk {volume | controller}

If the volume is specified, raidctl sets or unseats the disk as a local hot-spare disk dedicated to the volume, depending on the value specified by the -a option. If the controller is specified, raidctl sets or unseats the disk as a global hot-spare disk.

-p “param=value” [-f] volume

Change the property value for a given RAID volume. Currently, only the cache write policy is changeable (“on” or “off”). So Purim can only be the string “up” (SET_WR_POLICY), and value can be either “on” or “off”.

Changing a RAID volume’s property may affect the internal behavior of the RAID controller, so raidctl prompts the user for a confirmation before applying the change, unless the -f option is specified.

-c [-f] [-r raid_level] disk1 disk2 [disk3...]

Create a volume using the specified disks. This is an alternative to the -C option with similar functionality. This option is preserved for compatibility reasons, but only works with LSI1020, LSI1030, LSI1064, and LSI1068 HBAs to create RAID 0, RAID 1, or RAID 1E volumes. For other HBAs, the user can only use the -C option.

The -r option can be used to specify the RAID level of the target volume. If this option is omitted and only two disks are listed, raidctl creates a RAID 1 volume by default--otherwise, it fails.

Disks must be specified in Solaris canonical format (for example, c0t0d0).

Creating a RAID 1 volume with this option replaces the contents of disk2 with the contents of disk1.

When the user creates a RAID volume with this option, the RAID volume assumes the identity of disk1. Other disks become invisible and the RAID volume appears as one disk.

Creating a volume with this option is by default interactive. The user must answer a prompt affirmatively to create the volume. Use the -f option to force the volume creation without prompting the user for confirmation.

-l -g disk controller

Display information about the specified disk of the given controller. The output includes the following information:

Disk	Displays the disk in C.ID.L expression disk.
Vendor	Displays the vendor ID string.
Product	Displays the product ID string.
Capacity	Displays the total capacity of the disk.
Status	Displays the current status of disk. The status can be either “GOOD” (operating normally) or “FAILED” (non-functional).
HSP	Indicates if the disk has been set as a global hot-spare disk, local hot-spare disk, or a normal one. If it is a local hot-spare disk, all volumes which this disk is assigned to are displayed.

-l volume

Display information about the specified volume. The output includes the following information:

Volume	Displays volume in canonical format.
Sub	Displays sub-volumes, if the specified volume is of RAID 10 or RAID 50 volume.
Disk	Displays all disks that form the specified volume.
Stripe Size	Displays the stripe size of the volume.
Status	Displays the status of the specified volume, or the sub-volumes/disks than form the specified volume. For a volume, the status can be “OPTIMAL” (operating optimally), “DEGRADED” (operating with reduced functionality), “FAILED” (non- functional), or “SYNC” (disks are syncing). For a disk, the status can be “GOOD” or FAILED”.
Cache	Indicates whether the cache is applied to I/O write activities. The cache can be either “ON” or “OFF”.
RAID level	Displays the RAID level. The RAID level can be either 0, 1, 1E, 5, 10, or 50.

-l controller...

Display information about the specified controller(s). The output includes the following information:

Controller	Displays the RAID controller’s ID number.
Type	Displays the RAID controller’s product type.
fw_version	Displays the controller’s firmware version.

[-l]

List all RAID related objects that the raidctl utility can manipulate, including all available RAID controllers, RAID volumes, and physical disks. The -l option can be omitted.

The output includes the following information

Controller	Displays the RAID controller’s ID number.
Volume	Displays the logical RAID volume name.
Disk	Displays the RAID disk in C.ID.L expression.

-S [volume | controller]

Takes a snapshot of the RAID configuration information including all available RAID devices, RAID controllers, volumes, and disks.

Each line of the output specifies a RAID device and its related information, separated by space(s). All volumes and disks belong to the last specified controller.

The output lists the following information:

Controller	Displays the controller ID number, and the controller type string in double-quotation marks.
Volume	Displays the RAID volume name, number of component disks, the C.ID.L expression of the component disks, the RAID level, and the status. The status can be either OPTIMAL, DEGRADED, FAILED, or SYNCING.
Disk	Displays the C.ID.L expression of the disk, and the status. The status can be either GOOD, FAILED, or HSP (disk has been set as a stand-by disk).

If a volume or a controller is specified, a snapshot is only taken of the information for the specified volume or controller.

-S -g disk controller

Takes a snapshot of the information for the specified disk.

-h

Print out the usage string.

EXAMPLES

Example 1 Creating the RAID Configuration

The following command creates a RAID 0 volume of 10G on controller 0, and the stripe size will be set to 64k:

# raidctl -C “0.0.0 0.2.0” -r 0 -z 10g -s 64k 0

The following command creates a RAID 1 volume on controller 2:

# raidctl -C “0.0.0 1.1.0” -r 1 2

The following command creates a RAID 5 volume on controller 2:

# raidctl -C “0.0.0 0.1.0 0.2.0” -r 5 2

The following command creates a RAID 10 volume on controller 0:

# raidctl -C “(0.0.0 0.1.0)(0.2.0 0.3.0)” -r 10 0

The following command creates a RAID 50 volume on controller 0:

# raidctl -C “(0.0.0 0.1.0 0.2.0)(0.3.0 0.4.0 0.5.0)” -r 50 0

Example 2 Displaying the RAID Configuration

The following command displays all available controllers, volumes, and disks:

# raidctl -l

Controller: 0

Controller: 2

Volume:c2t0d0
Disk: 0.0.0
Disk: 0.1.0
Disk: 0.2.0
Disk: 0.3.0(HSP)

The following command displays information about controller 2:

# raidctl -l 2

Controller	Type	Fw_version
c2	LSI 1030	1.03.39.00

The following command displays information about the specified volume:

# raidctl -l c2t0d0

Volume	Disk	Size	Stripe Size	Status	Cache	RAID Level
c2t0d0		10240M	64K	OPTIMAL	ON	RAID5
	0.0.0	5120M		GOOD
	01.0	5120M		GOOD
	0.2.0	5120M		GOOD

The following command displays information about disk 0.3.0 on controller 2:

# raidctl -l -g 0.3.0 2

Disk	Vendor	Product	Capacity	Status	HSP
0.3.0	MAXTOR	ATLAS10K4_36SC	34732M	GOOD	c2t0d0

Example 3 Deleting the RAID Configuration

The following command deletes a volume:

# raidctl -d c0t0d0

Example 4 Updating Flash Images on the Controller

The following command updates flash images on the controller 0:

# raidctl -F lsi_image.fw 0

Example 5 Setting or unsetting a hot-spare disk

The following command sets disk 0.3.0 on controller 2 as a global hot-spare disk:

# raidctl -a set -g 0.3.0 2

The following command sets disk 0.3.0 on controller 2 as a local hot-spare disk to volume c2t0d0:

# raidctl -a set -g 0.3.0 c2t0d0

The following command converts disk 0.3.0 on controller 2 from a global hot-spare disk to a normal one:

# raidctl -a unset -g 0.3.0 2

The following command removes disk 0.3.0 from being a local hot-spare disk from volume c2t0d0:

# raidctl -a unset -g 0.3.0 c2t0d0

Example 6 Setting the volume’s property

The following command sets the write policy of the volume to “off”:

# raidctl -a set -p “wp=off” c0t0d0

Example 7 Creating volumes with the -c option

The following command creates a RAID 1 volume:

# raidctl -c c0t0d0 c0t1d0

The following command creates a RAID 0 volume:

# raidctl -c -r 0 c0t1d0 c0t2d0 c0t3d0

Example 8 Taking a snapshot of the RAID configuration information

The following command takes a snapshot of all RAID devices:

# raidctl -S

1 “LSI 1030”
c1t1d0 2 0.2.0 0.3.0 1 DEGRADED
0.2.0 GOOD
0.3.0 FAILED

The following command takes a snapshot about volume c1t0d0:

# raidctl -S c1t0d0

c1t0d0 2 0.0.0 0.1.0 1 OPTIMAL

The following command takes a snapshot about disk 0.1.0 on controller 1:

# raidctl -S -g 0.1.0 1

0.1.0 GOOD

EXIT STATUS

The following exit values are returned:

0 Successful completion.

1 Invalid command line input or permission denied.

2 Request operation failed.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Availability	SUNWcsu
Interface Stability	Evolving

The Man Page for raidctl

The Man Page for `raidctl`