HP XP P9500 Storage - Manual (Page 219)

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 (cUtXdY) 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 (cUtXdY) 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 (cUtXdY) 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 be removed from VxVM management. To remove non- HDLM
devices from VxVM management, see Removing Devices from VxVM
on a Controller Basis on page 3-156 or Removing Devices From VxVM
on a Path Basis on page 3-160 of Removing Devices from VxVM on
page 3-154 . To apply the settings performed in procedure (2) or (3)
in Removing Devices from VxVM on page 3-154 , restart the host.
3
.
Create a disk group by referring to the VxVM documentation.
An HDLM device can be added to VxVM as a disk of the sliced type or
the cdsdisk type.
Creating an HDLM Environment
3-153
Hitachi Dynamic Link Manager User Guide for Solaris ®