Joining disk groups

To remove all VxVM objects from an imported source disk group to an imported target disk group, use the following command:

# vxdg [-o override|verify] join sourcedg targetdg

Note:

You cannot specify rootdg as the source disk group for a join operation.

The following output from vxprint shows the contents of the disk groups rootdg and mydg.

The output includes two utility fields, TUTIL0 and PUTIL0.. VxVM creates these fields to manage objects and communications between different commands and Veritas InfoScale 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    sda         -          17678493   -         -        -         -
dm rootdg02    sdb         -          17678493   -         -        -         -
dm rootdg03    sdc         -          17678493   -         -        -         -
dm rootdg04    sdd         -          17678493   -         -        -         -
dm rootdg07    sdg         -          17678493   -         -        -         -
dm rootdg08    sdh         -          17678493   -         -        -         -

Disk group: mydg
TY NAME        ASSOC       KSTATE     LENGTH     PLOFFS    STATE    TUTIL0    PUTIL0 
dg mydg        mydg        -          -          -         -        -         -
dm mydg05      sde         -          17678493   -         -        -         -
dm mydg06      sdf         -          17678493   -         -        -         -
v  vol1        fsgen       ENABLED    2048       -         ACTIVE   -         -
pl  vol1-01    vol1        ENABLED    3591       -         ACTIVE   -         -
sd mydg01-01   vol1-01     ENABLED    3591       0         -        -         -
pl vol1-02     vol1        ENABLED    3591       -         ACTIVE   -         -
sd mydg05-01   vol1-02     ENABLED    3591       0         -        -         -

The following command joins disk group mydg to rootdg:

# vxdg join mydg rootdg

By default, VxVM automatically recovers and starts the volumes following a disk group join. If you have turned off the automatic recovery feature, volumes are disabled after a join. 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 join shows that disk group mydg has been removed:

# vxprint
Disk group: rootdg
TY NAME        ASSOC       KSTATE     LENGTH      PLOFFS     STATE    TUTIL0    PUTIL0 
dg rootdg      rootdg      -          -           -          -        -         -
dm mydg01      sda         -          17678493    -          -        -         -
dm rootdg02    sdb         -          17678493    -          -        -         -
dm rootdg03    sdc         -          17678493    -          -        -         -
dm rootdg04    sdd         -          17678493    -          -        -         -
dm mydg05      sde         -          17678493    -          -        -         -
dm rootdg06    sdf         -          17678493    -          -        -         -
dm rootdg07    sdg         -          17678493    -          -        -         -
dm rootdg08    sdh         -          17678493    -          -        -         -
v  vol1        fsgen       ENABLED    2048        -          ACTIVE   -         -
pl  vol1-01    vol1        ENABLED    3591        -          ACTIVE   -         -
sd mydg01-01   vol1-01     ENABLED    3591        0          -        -         -
pl vol1-02     vol1        ENABLED    3591        -          ACTIVE   -         -
sd mydg05-01   vol1-02     ENABLED    3591        0          -        -         -

More Information

Moving objects between disk groups