HP Hitachi Dynamic Link Manager Software Licenses - Manual (Page 246)

Setting Up SVM
If SVM is installed on an HDLM host, SVM uses the logical device file name of
the HDLM device to access the HDLM-managed device. Therefore, after
installing HDLM, you need to register the logical device file name of the HDLM
device in SVM. When removing HDLM, unregister the logical device file name
of the HDLM device and set the logical device file name of the sd or ssd
device.
Notes
When using SVM, keep the following in mind.
• Even if you use a local diskset or shared diskset, do not specify the -r
option when changing the path configuration and executing the
dlmsetconf utility for creating the HDLM driver configuration definition
file. When you specify the -r option, the minor number of the HDLM
device used on the SVM will be changed, and you will no longer be able to
use the volume.
• Even if you use a local diskset or shared diskset, you cannot use the
Solaris management console. Use the command line utility instead. Also,
when you set up a volume, do not use the -a option of the metainit
command. Register the database on the command line, and then register
the volume.
• Specify the same name for the logical device file name (cUtXdY) of the
HDLM device on all the hosts that belong to a single shared diskset.
• When a shared diskset is used, specify the same major number and minor
number for the physical device files of the HDLM devices on all the hosts
that belong to that shared diskset.
Executing the following command enables you to check the major number
and minor number for the physical device file of the HDLM device.
# ls -lR /devices/pseudo | grep dlmfdrv
To specify the same major number and minor number for the physical
device files of the HDLM device on each host using the shared diskset:
a
.
View the /etc/name_to_major file on each host, and then select a
major number that is not used on any host.
b
.
Edit the /etc/name_to_major file to set the major number of the
HDLM filter driver (dlmfdrv) to the number you chose above.
c
.
Restart all the hosts, specifying either of the following commands:
# reboot -- -r
or
boot -r (at the ok prompt)
For more information on SVM settings, refer to the SVM documentation.
3-180
Creating an HDLM Environment
Hitachi Dynamic Link Manager (for Solaris) User Guide