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

As in the previous example, the cloned disk EMC0_15 is not tagged as t1, and so it
is not imported.
Considerations when using EMC CLARiiON SNAPSHOT LUNs
If you need to import the Snapshot LUN of a primary LUN to the same host as the
original LUN, be aware of the following limitation:
If you are using enclosure-based naming (EBN) with the Array Volume id (AVID)
enabled, turn off name persistence during device discovery before importing the
snapshot LUN to the original host.
To turn off name persistence, use the following command:
# vxddladm set namingscheme=ebn persistence=no use_avid=yes
After DDL recognizes the LUN, turn on name persistence using the following
command:
# vxddladm set namingscheme=ebn persistence=yes use_avid=yes
Renaming a disk group
Only one disk group of a given name can exist per system. It is not possible to
import or deport a disk group when the target system already has a disk group of
the same name. To avoid this problem, VxVM allows you to rename a disk group
during import or deport.
To rename a disk group during import, use the following command:
# vxdg [-t] -n newdg import diskgroup
If the -t option is included, the import is temporary and does not persist across
reboots. In this case, the stored name of the disk group remains unchanged on its
original host, but the disk group is known by the name specified by newdg to the
importing host. If the -t option is not used, the name change is permanent.
For example, this command temporarily renames the disk group, mydg, as mytempdg
on import:
# vxdg -t -n mytempdg import mydg
To rename a disk group during deport, use the following command:
# vxdg [-h hostname] -n newdg deport diskgroup
241Creating and administering disk groups
Renaming a disk group