HP Hitachi Dynamic Link Manager Software - Manual (Page 278)

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HDLM devices are listed in the HDevName column, and SCSI devices are
listed in the Device column.
2
.
Check whether the SCSI devices can be migrated to the HDLM devices.
Execute the command shown below.
In the following example, the domU configuration information is retrieved
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/sda)
(mode w)
)
)
:
:
If the SCSI device displayed on the uname phy line is the SCSI device that
appeared in step 1, continue to step 3. (Only a SCSI device that appears
in step 1 can be migrated to an HDLM device.)
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.
4
.
Specify the settings so that SCSI devices are not used in domainU.
Disable the block device settings from domainU. For details, see the Linux
documentation.
5
.
Specify the settings so that HDLM devices are used in domainU.
Set (export) the block devices to domainU. For details, see the Linux
documentation.
Make sure that you specify the settings based on the correspondence
between the HDLM and SCSI devices displayed in step 1.
6
.
Change the single-path configuration to a multi-path configuration.
7
.
Start domainU.
If you temporarily changed the settings in step 3 so that domainU would
not automatically start, restore the previous settings.
3-206
Creating an HDLM Environment
Hitachi Dynamic Link Manager User Guide for Linux ®