Veritas Volume Manager 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Chapter 3, Administering Dynamic Multipathing (DMP)
Administering DMP Using vxdmpadm
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Enabling a Controller
Note This operation is not supported for controllers that are used to access disk arrays on
which cluster-shareable disk groups are configured.
Enabling a controller allows a previously disabled host disk controller to accept I/O. This
operation succeeds only if the controller is accessible to the host and I/O can be
performed on it. When connecting Active/Passive disk arrays in a non-clustered
environment, the enable operation results in failback of I/O to the primary path. The
enable operation can also be used to allow I/O to the controllers on a system board that
was previously detached.
To enable a controller, use the following command:
# vxdmpadm enable ctlr=ctlr_name
Renaming an Enclosure
The vxdmpadm setattr command can be used to assign a meaningful name to an
existing enclosure, for example:
# vxdmpadm setattr enclosure enc0 name=GRP1
This example changes the name of an enclosure from enc0 to GRP1.
Note The maximum length of the enclosure name prefix is 25 characters. The name must
not contain an underbar character (_).
The following command shows the changed name:
# vxdmpadm listenclosure all
ENCLR_NAME ENCLR_TYPE ENCLR_SNO STATUS
============================================================
other0 OTHER OTHER_DISKS CONNECTED
jbod0 X1 X1_DISKS CONNECTED
GRP1 ACME 60020f20000001a90000 CONNECTED