InfoScale™ 9.0 Storage Foundation Administrator's Guide - AIX

Setting tags on volumes

Volume tags implement the SmartTier feature. You can also apply tags to vsets using the same vxvm command syntax as shown below.

The following forms of the vxassist command let you do the following:

# vxassist [-g diskgroup] settag volume|vset tagname[=tagvalue]
# vxassist [-g diskgroup] replacetag volume|vset oldtag newtag
# vxassist [-g diskgroup] removetag volume|vset tagname

To list the tags that are associated with a volume, use the following command:

# vxassist [-g diskgroup] listtag [volume|vset]

If you do not specify a volume name, all the volumes and vsets in the disk group are displayed. The acronym vt in the TY field indicates a vset.

The following is a sample listtag command:

# vxassist -g dg1 listtag vol

To list the volumes that have a specified tag name, use the following command:

# vxassist [-g diskgroup] list tag=tagname volume

Tag names and tag values are case-sensitive character strings of up to 256 characters. Tag names can consist of the following ASCII characters:

A tag name must start with either a letter or an underscore. A tag name must not be the same as the name of a disk in the disk group.

The tag names site, udid, and vdid are reserved. Do not use them. To avoid possible clashes with future product features, do not start tag names with any of the following strings: asl, be, nbu, sf, symc, or vx.

Tag values can consist of any ASCII character that has a decimal value from 32 through 127. If a tag value includes spaces, quote the specification to protect it from the shell, as follows:

# vxassist -g mydg settag myvol "dbvol=table space 1"

The list operation understands dotted tag hierarchies. For example, the listing for tag=a.b includes all volumes that have tag names starting with a.b.