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storage disk assign

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Assign ownership of a disk to a system

Availability: This command is available to cluster administrators at the admin privilege level.

Description

The storage disk assign command is used to assign ownership of an unowned disk or array LUN to a specific node. You can also use this command to change the ownership of a disk or an array LUN to another node. You can designate disk ownership by specifying disk names, array LUN names, wildcards, or all (for all disks or array LUNs visible to the node). For disks, you can also set up disk ownership autoassignment. You can also assign disks to a particular pool. You can also assign disks by copying ownership from another disk.

Parameters

{ [-disk <disk path name>] - Disk Path

This specifies the disk or array LUN that is to be assigned. Disk names take one of the following forms:

  • Disks are named in the form <stack-id> .<shelf> .<bay>

  • Disks on multi-disk carriers are named in the form <stack-id> .<shelf> .<bay> .<lun>

  • Virtual disks are named in the form <prefix>.<number>, where prefix is the storage array's prefix and number is a unique ascending number.

Disk names take one of the following forms on clusters that are not yet fully upgraded to Data ONTAP 8.3:

  • Disks that are not attached to a switch are named in the form <node> :<host_adapter> .<loop_ID> . For disks with a LUN, the form is <node> :<host_adapter> .<loop_ID> L<LUN> . For instance, disk number 16 on host adapter 1a on a node named node0a is named node0a:1a.16. The same disk on LUN lun0 is named node0a:1a.16Llun0.

  • Disks that are attached to a switch are named in the form <node> :<switch_name> :<switch_port> .<loop_ID> . For disks with a LUN, the form is <node> :<switch_name> :<switch_port> .<loop_ID> L<LUN> . For instance, disk number 08 on port 11 of switch fc1 on a node named node0a is named node0a:fc1:11.08. The same disk on LUN lun1 is named node0a:fc1:11.08Llun1.

Before the cluster is upgraded to Data ONTAP 8.3, the same disk can have multiple disk names, depending on how the disk is connected. For example, a disk known to a node named alpha as alpha:1a.19 can be known to a node named beta as beta:0b.37. All names are listed in the output of queries and are equally valid. To determine a disk's unique identity, run a detailed query and look for the disk's universal unique identifier (UUID) or serial number.

A subset of disks or array LUNs can be assigned using the wildcard character (*) in the -disk parameter. Either the -owner , the -sysid , or the -copy-ownership-from parameter must be specified with the -disk parameter. Do not use the -node parameter with the -disk parameter.

| -disklist <disk path name>,…​ - Disk list

This specifies the List of disks to be assigned.

| -all <true> - Assign All Disks

This optional parameter causes assignment of all visible unowned disks or array LUNs to the node specified in the -node parameter. The -node parameter must be specified with the -all parameter. When the -copy-ownership-from parameter is specified with the -node parameter, it assigns disk ownership based on the -copy-ownership-from parameter; otherwise it assigns ownership of the disks based on the -node parameter. Do not use the -owner or the -sysid parameter with the -all parameter.

| [-T, -type {ATA | BSAS | FCAL | FSAS | LUN | MSATA | SAS | SSD | VMDISK | SSD-NVM}] - Storage Type

This optional parameter assigns ownership of a specific type of disk or array LUN (or a set of disks/array LUNs) to a node. The -count parameter must be specified with the -type parameter.

-n, -count <integer> - Disk Count

This optional parameter assigns ownership of a number of disks or array LUNs specified in the -count parameter, to a node.

| -auto <true> - Auto Assign }

This optional parameter causes all visible disks eligible for autoassignment to be immediately assigned to the node specified in the -node parameter, regardless of the setting of the disk.auto_assign option. Only unowned disks on loops or stacks owned wholly by that system and which have the same pool information will be assigned. The -node parameter must be specified with the -auto parameter. Do not use the -owner , the -sysid , or the -copy-ownership-from parameter with the -auto parameter. When possible, use the -auto parameter rather than the -all parameter to conform to disk ownership best practices. The -auto parameter is ignored for array LUNs.

[-p, -pool <integer>] - Pool

This optional parameter specifies the pool to which a disk must be assigned. It can take values of Pool0 or Pool1.

{ [-o, -owner <nodename>] - Owner Name

This optional parameter specifies the node to which the disk or array LUN has to be assigned.

[-s, -sysid <nvramid>] - New Owner ID

This optional parameter specifies the serial number (NVRAM ID) of the node to which the disk or array LUN has to be assigned.

| [-copy-ownership-from <disk path name>] - Disk Name to Copy Ownership }

This optional parameter specifies the disk name from where the node needs to copy disk ownership information. You can use this parameter for disks to have the same ownership as the provided input disk.

[-c, -checksum {block|zoned|advanced_zoned}] - Checksum Compatibility

This optional parameter is used to set the checksum type for a disk or an array LUN. The possible values are block , zoned , and advanced_zoned . This operation will fail if the specified disk is incompatible with the specified checksum type. A newly created aggregate with zoned checksum array LUNs is assigned advanced zoned checksum (AZCS) checksum type. AZCS checksum type provides more functionality than the "version 1" zoned checksum type which has been supported in previous Data ONTAP releases. Zoned checksum spare array LUNs added to an existing zoned checksum aggregate continue to be zoned checksum. Zoned checksum spare array LUNs added to an AZCS checksum type aggregate use the AZCS checksum scheme for managing checksums. For some disks (e.g. FCAL, SSD, SAS disks), the checksum type cannot be modified. For more information on modifying the checksum type, refer to the "Physical Storage Management Guide".

[-f, -force <true>] - Force Flag

This optional parameter forces the assignment of ownership of an already owned disk to a node. This parameter could also be used to assign an array LUN with a redundancy error, for example, if the array LUN is available on only one path. For a disk which is part of a live aggregate, even specification of the -force parameter would not force the assignment, since it would be catastrophic.

[-N, -node <nodename>] - Node Name (For Auto Assign)

This optional parameter is used with either the -auto or the -all parameter. If used with the -auto parameter, all disks which are visible to the node specified in the -node parameter and which are eligible for autoassignment would be assigned to it. If used with the -all parameter, all unowned disks or array LUNs visible to the node would be assigned to it.

{ [-root <true>] - Root Partition of Root-Data or Root-Data1-Data2 Partitioned Disk (privilege: advanced)

This optional parameter assigns the root partition of a root-data/root-data1-data2 partitioned disk. You cannot use this parameter with disks that are part of a storage pool. The default value is false .

| [-data <true>] - Data Partition of Root-Data Partitioned Disk (privilege: advanced)

This optional parameter assigns the data partition of a root-data partitioned disk. You cannot use this parameter with disks that are part of a storage pool. The default value is false .

| [-data1 <true>] - Data1 Partition of Root-Data1-Data2 Partitioned Disk (privilege: advanced)

This optional parameter assigns the data1 partition of a root-data1-data2 partitioned disk. You cannot use this parameter with disks that are part of a storage pool. The default value is false .

| [-data2 <true>] - Data2 Partition of Root-Data1-Data2 Partitioned Disk (privilege: advanced) }

This optional parameter assigns the data2 partition of a root-data1-data2 partitioned disk. You cannot use this parameter with disks that are part of a storage pool. The default value is false .

Examples

The following example assigns ownership of an unowned disk named ``_1_`` .``_1_`` .``_16_`` to a node named ``_node1_`` :
cluster1::> storage disk assign -disk 1.1.16 -owner node1

The following example assigns all unowned disks or array LUNs visible to a node named node1 to itself:

cluster1::> storage disk assign -all -node node1

The following example autoassigns all unowned disks (eligible for autoassignment) visible to a node named node1 to itself:

cluster1::> storage disk assign -auto -node node1

The following two examples show the working of the -force parameter with a spare disk that is already owned by another system:

cluster1::> storage disk assign -disk 1.1.16 -owner node1
    Error: command failed: Failed to assign disks. Reason: Disk 1.1.16 is
    already owned.
cluster1::> storage disk assign -disk 1.1.16 -owner node1 -force
    Success.

The following example assigns ownership of the set of unowned disks on <stack>1 , to a node named node1 :

cluster1::> storage disk assign -disk 1.* -owner node1

The following example assigns ownership of unowned disk 1 .1 .16 by copying ownership from disk 1 .1 .18 :

cluster1::> storage disk assign -disk 1.1.16
   -copy-ownership-from 1.1.18
The following example assigns all unowned disks visible to a node named ``_node1_`` by copying ownership from disk ``_1_`` .``_1_`` .``_18_`` :
cluster1::> storage disk assign -all -node node1
    -copy-ownership-from 1.1.18

The following example assigns the root partition of disk 1 .1 .16 to node1.

cluster1::> storage disk assign -disk 1.1.16 -owner node1 -root true
    -force true

The following example assigns the data partition of root-data partitioned disk 1 .1 .16 to node1.

cluster1::> storage disk assign -disk 1.1.16 -owner node1 -data true
    -force true

The following example assigns the data1 partition of root-data1-data2 partitioned disk 1 .1 .24 to node1.

cluster1::> storage disk assign -disk 1.1.24 -owner node1 -data1 true
    -force true

The following example assigns the data2 partition of root-data1-data2 partitioned disk 1 .1 .24 to node1.z33

cluster1::> storage disk assign -disk 1.1.24 -owner node1 -data2 true
    -force true