HP Hitachi Dynamic Link Manager Software - Manual (Page 233)

3. Creating an HDLM Environment
211
in the format
c
U
t
X
d
Y
s
Z, corresponding to the device name of the enclosure.
Note
The device name of the enclosure corresponding to the LU might vary before
and after installing HDLM. Make sure that you perform step 1 to check the
correspondence between the device name of the enclosure and the LU.
If the
vxdisk
command displays the value of
HDevName
(
c
U
t
X
d
Y) output by the
dlnkmgr
command's
view -path
operation, the HDLM device is recognized
by VxVM. Go to step 2. If the
vxdisk
command does not display the value of
HDevName
(
c
U
t
X
d
Y) output by the
dlnkmgr
command's
view -path
operation, the HDLM device is not recognized by VxVM. In this case, perform
step 2, then re-execute step 1 to make sure that the HDLM device is recognized.
2. Execute the
vxdmpadm
command for the devices displayed by the
vxdisk
command to make sure that only the HDLM devices are
ENABLED
.
To check whether the HDLM devices are
ENABLED
, see the value of
HDevName
(c
U
t
X
d
Y
)
output by the
dlnkmgr
command's
view -path
operation. Also,
make sure that all non-HDLM devices are removed from VxVM management and
not displayed.
The following shows an example of executing the command:
Note
The load balancing and failover functions will not work normally if the
vxdmpadm
command outputs non- HDLM devices (devices that are not
displayed for
HDevName
of the
dlnkmgr
command's
view -path
operation), and if
STATE
is
ENABLED
. Therefore, non-HDLM devices must