HP Hitachi Dynamic Link Manager Software Licenses - Manual (Page 282)

Canceling the Xen Settings
This subsection describes how to cancel the HDLM device settings in an
environment in which Xen is being used.
The following is the procedure for migrating a domainU environment that
uses the HDLM device /dev/sddlmaa in a multi-path configuration to an
environment that uses the SCSI device /dev/sda in a single-path
configuration.
1
.
Check the correspondence between the HDLM and SCSI devices.
Execute the HDLM configuration definition utility (dlmcfgmgr) with the -v
parameter.
# /sbin/dlmcfgmgr -v
HDevName Management Device Host Channel Target Lun
/dev/sddlmaa configured /dev/sda 2 0 0 0
- 2 0 1 0
/dev/sddlmab configured /dev/sdb 2 0 0 1
:
:
KAPL10302-I /sbin/dlmcfgmgr completed normally.
#
The HDLM devices are listed in the HDevName column, and the SCSI
devices are listed in the Device column.
2
.
Check whether the HDLM devices can be migrated to the SCSI devices.
Execute the command shown below.
In the following example, the domU configuration information is checked
from the management domain:
# /usr/sbin/xm list -l domU
:
:
(device
(vbd
(uuid 6b393aaa-89e7-44dc-7a57-24d477dee43d)
(bootable 0)
(driver paravirtualised)
(dev sdx)
(uname phy:/dev/sddlmaa)
(mode w)
)
)
:
:
The HDLM device displayed on the uname phy line is an HDLM device that
appeared in the check in step 1.
3
.
If domainU is running, stop it.
If domainU has been set to automatically start when domain0 starts,
temporarily change the setting so that domainU will not start
automatically.
3-210
Creating an HDLM Environment
Hitachi Dynamic Link Manager (for Linux®) User Guide