chsp command

Purpose

Change the characteristics of a storage pool.

Syntax

Increase the size of a file storage pool:

chsp -add [-sp StoragePool] -size Size

Add physical volume to a logical volume storage pool:

chsp -add [ -f ] [-sp StoragePool] PhysicalVolume...

Remove a physical volume from a logical volume storage pool :

chsp -rm [ -f ] [-sp StoragePool] PhysicalVolume...

Set storage pool as the default:

chsp -default StoragePool

Description

The chsp command adds and removes physical volumes represented by the PhysicalVolume parameter from a logical volume storage pool. Before adding a physical volume, the chsp command checks to verify that it is not already in another volume group or storage pool, or is not assigned to a shared memory pool (to be used as a paging space device by a shared memory partition). If the system detects a description area from a volume group or storage pool, the command will fail. If the -f flag is specified, the physical volume is added even if it contains a description area, unless it is a member of another storage pool or volume group, or is assigned to a shared memory pool (to be used as a paging space device by a shared memory partition).

Before removing physical volumes from a logical volume the storage pool, the chsp command prompts the user to verify each logical volume should be removed. If the user specifies the -f flag, the logical volumes are removed with out prompting for input. If all physical volumes in a storage pool are removed, the storage pool is also removed.

Note: A logical volume storage pool which contains file storage pools or the Virtual Media Repository cannot be removed.

If the -sp flag is not specified, the default storage pool is assumed.

If the specified, or default, storage pool is a file storage pool and the -size flag is specified the given pools size will be increased by at least the amount specified. The specified flag cannot be a negative number and file storage pools cannot be reduced in size.

Size	Minimum file storage pool size
###M/m	###MB
###G/g	###GB

If the -default flag is included, the storage pool specified will become the default storage pool for all users. If no default has been set, the rootvg storage pool will be the default. Only the padmin user can set the default storage pool.

Files

-add	Adds the given physical volume into specified storage pool. If a storage pool is not specified the physical volume is added to the default pool.
-default	Sets the specified storage pool as the system default pool. Only the padmin user can set the default storage pool.
-f	When combined with the -add flag, forces the physical volume to be added to the specified storage pool unless the physical volume is part of another storage pool or volume group in the Device Configuration Database or a volume group that is active. When combined with the -rm flag, forces the removal of all logical volumes on the physical volume before removal from the storage pool.
-rm	Remove the specified physical volume from specified storage pool. If a storage pool is not specified, the physical volume is removed from the default pool. The user will be prompted to confirm the removal of any logical volumes on the physical volume.
-size StoragePool	Specifies the minimum amount of storage to add to the file storage pool.
-sp StoragePool	Specifies the storage pool to be changed.

Exit Status

23	Specified storage pool is not valid

Examples

To add physical volume hdisk3 to the default storage pool, type:
```
chsp -add hdisk3
```
To remove physical volume hdisk2 from clstorage storage pool, type:
```
chsp -rm -sp clstorage hdisk2
```
To increase the size of the file storage pool clientData by at least 1 gigabyte, type:
```
chsp -add -sp clientData -size 1g
```