Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

You can use the tag attribute with the vxassist make command to set a named
tag and optional tag value on a volume, for example:
# vxassist -b -g mydg make volmir 5g layout=mirror tag=mirvol=5g
To list the tags that are associated with a volume, use this command:
# vxassist [-g diskgroup] listtag volume
If you do not specify a volume name, the tags of all volumes and vsets in the disk
group are listed.
The following is an example of listtag output:
# vxassist -g dgl listtag vol
TY NAME DISKGROUP TAG
=================================================
v vol dg1 Symantec
To list the volumes that have a specified tag name, use this command:
# vxassist [-g diskgroup] list tag=tagname
Tag names and tag values are case-sensitive character strings of up to 256
characters. Tag names can consist of letters (A through Z and a through z),
numbers (0 through 9), dashes (-), underscores (_) or periods (.) from the ASCII
character set. A tag name must start with either a letter or an underscore. Tag
values can consist of any character from the ASCII character set with a decimal
value from 32 through 127. If a tag value includes any spaces, use the vxassist
settag command to set the tag on the newly created volume.
Dotted tag hierarchies are understood by the list operation. For example, the
listing for tag=a.b includes all volumes that have tag names that start with a.b.
The tag names site, udid and vdid are reserved and should not be used. To avoid
possible clashes with future product features, it is recommended that tag names
do not start with any of the following strings: asl, be, isp, nbu, sf, symc, vx, or
vxvm.attr.
See “Setting tags on volumes” on page 368.
You can use the tier attribute with the vxassist make command to set the
vxfs.placement_class. tag on the volume being created. This attribute lets you
set the volume tier that SmartTier will use. The following command adds tier1
to the vxfs.placement_class tag.
# vxassist -g dg3 make vol4 5g tier=tier2
323Creating volumes
Creating tagged volumes