HP Hitachi Dynamic Link Manager Software - Manual (Page 320)

Note that, in step 13 in Migrating to md Devices for which the MULTIPATH
Function Is Not Used on page 3-241 , [linear] will be displayed until the
host is restarted. However, there are no operational problems.
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
parameter specified to check the correspondence between the SCSI
device and the HDLM device.
The following shows an example of executing the dlmcfgmgr utility with
the specified-v parameter:
# dlmcfgmgr -v
HDevName Management Device Host Channel Target Lun
/dev/sddlmaa configured /dev/sdh 1 0 0 0
/dev/sddlmab configured /dev/sdj 1 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.
3
.
Execute the following command to check the correspondence between the
UUID and the SCSI device name.
In this command, specify the SCSI device name checked in step 2.
# cryptsetup luksUUID /dev/sdh
050f9901-3ab8-4556-a091-9c6e4a404f09
#
4
.
In the /etc/crypttab file's second field, change the setting to the UUID
output executed in step 3.
Before:
luks-volume /dev/sddlmaa /etc/cryptpassword
After:
luks-volume UUID="050f9901-3ab8-4556-a091-9c6e4a404f09" /etc/
cryptpassword
Removing HDLM
This subsection describes how to remove HDLM.
3-248
Creating an HDLM Environment
Hitachi Dynamic Link Manager User Guide for Linux ®