To remove a self-contained set of VxVM objects from an imported source disk group to a new target disk group, use the following command:

# vxdg [-o expand] [-o override|verify] split sourcedg targetdg \
  object ...

The following output from vxprint shows the contents of disk group rootdg.

The output includes two utility fields, TUTIL0 and PUTIL0.. VxVM creates these fields to manage objects and communications between different commands and Symantec products. The TUTIL0 values are temporary; they are not maintained on reboot. The PUTIL0 values are persistent; they are maintained on reboot.

# vxprint
Disk group: rootdg
TY NAME        ASSOC      KSTATE    LENGTH     PLOFFS    STATE   TUTIL0   PUTIL0 
dg rootdg      rootdg     -         -          -         -       -        -
dm rootdg01    hdisk5     -         17678493   -         -       -        -
dm rootdg02    hdisk6     -         17678493   -         -       -        -
dm rootdg03    hdisk7     -         17678493   -         -       -        -
dm rootdg04    hdisk8     -         17678493   -         -       -        -
dm rootdg05    hdisk9     -         17678493   -         -       -        -
dm rootdg06    hdisk10    -         17678493   -         -       -        -
dm rootdg07    hdisk11    -         17678493   -         -       -        -
dm rootdg08    hdisk12    -         17678493   -         -       -        -
v  vol1        fsgen      ENABLED   2048       -         ACTIVE  -        -
pl  vol1-01    vol1       ENABLED   3591       -         ACTIVE  -        -
sd rootdg01-01 vol1-01    ENABLED   3591       0         -       -        -
pl vol1-02     vol1       ENABLED   3591       -         ACTIVE  -        -
sd rootdg05-01 vol1-02    ENABLED   3591       0         -       -        -

The following command removes disks rootdg07 and rootdg08 from rootdg to form a new disk group, mydg:

# vxdg -o expand split rootdg mydg rootdg07 rootdg08

By default, VxVM automatically recovers and starts the volumes following a disk group split. If you have turned off the automatic recovery feature, volumes are disabled after a split. Use the following commands to recover and restart the volumes in the target disk group:

# vxrecover -g targetdg -m [volume ...]
# vxvol -g targetdg startall

The output from vxprint after the split shows the new disk group, mydg:

# vxprint
Disk group: rootdg
TY NAME        ASSOC     KSTATE     LENGTH     PLOFFS    STATE    TUTIL0     PUTIL0 
dg rootdg      rootdg    -          -          -         -        -          -
dm rootdg01    hdisk5    -          17678493   -         -        -          -
dm rootdg02    hdisk6    -          17678493   -         -        -          -
dm rootdg03    hdisk7    -          17678493   -         -        -          -
dm rootdg04    hdisk8    -          17678493   -         -        -          -
dm rootdg05    hdisk9    -          17678493   -         -        -          -
dm rootdg06    hdisk10   -          17678493   -         -        -          -
v  vol1        fsgen     ENABLED    2048       -         ACTIVE   -          -
pl  vol1-01    vol1      ENABLED    3591       -         ACTIVE   -          -
sd rootdg01-01 vol1-01   ENABLED    3591       0         -        -          -
pl vol1-02     vol1      ENABLED    3591       -         ACTIVE   -          -
sd rootdg05-01 vol1-02   ENABLED    3591       0         -        -          -

Disk group: mydg
TY NAME        ASSOC     KSTATE     LENGTH     PLOFFS    STATE    TUTIL0     PUTIL0 
dg mydg        mydg      -          -          -         -        -          -
dm rootdg07    hdisk11   -          17678493   -         -        -          -
dm rootdg08    hdisk12   -          17678493   -         -        -          -