Hitachi Dynamic Link Manager, User Manual, Page: 334 / 746

3. Creating an HDLM Environment
310
DEVICE /dev/sddlmaa1
After the correction:
DEVICE /dev/sdh1 /dev/sdo1
Specify all SCSI devices that correspond to HDLM devices.
When you edit the
DEVICE
line, change only the device names. Do not change the
partition numbers.
11. Execute the following command to deactivate the md device:
# mdadm -Ss /dev/md0
12. Make sure that the md device has been deactivated.
In the following example, the
MULTIPATH
function is used for the md device:
# cat /proc/mdstat
Personalities : [linear]
#
[multipath]
unused devices: <none>
Make sure that
md0 : active
is not displayed.
#
Although
[linear]
will be displayed until the host is restarted, there are no
operational problems.
13. Activate the md device.
Perform steps 11 to 14 in (1) Migrating to md Devices for which the MULTIPATH
Function Is Not Used .
Note that, in step 13 in (1) Migrating to md Devices for which the MULTIPATH
Function Is Not Used ,
[linear]
will be displayed until the host is restarted.
However, there are no operational problems.
3.23.10 Canceling the LUKS Settings
This subsection describes how to migrate LUKS from a HDLM device environment
using LUKS to SCSI devices.
To migrate from
/dev/sddlmaa
to
/dev/sdh
:
1. Change the multi-path configuration to a single-path configuration.
2. Check the SCSI device to be migrated from the HDLM device.
Execute the HDLM-configuration definition utility (
dlmcfgmgr)
with the
-v