HP Hitachi Dynamic Link Manager Software - Manual (Page 317)

Figure 3-40 Device Configuration When an md Device on an HDLM Device
Is Moved to a SCSI Device (An Environment that Uses the md Device's
MULTIPATH Functionality)
To migrate /dev/md0:
1
.
Deactivate the md device.
Perform steps 3 to 5 in
Migrating to md Devices for which the MULTIPATH
Function Is Not Used on page 3-241 .
2
.
Check the status of the md device.
Execute the following command to check the configuration of the md
device:
# cat /proc/mdstat
Personalities : [linear]
md0 : active linear sddlmaa1[0]
5238528 blocks [2/2] [UU]
unused devices:
Make sure that md0 : active and the HDLM devices are displayed:
3
.
Execute the following command to deactivate the md device:
# mdadm -Ss /dev/md0
4
.
Make sure that the md device has been deactivated.
In the following example, the LINEAR function is used for the md device:
# cat /proc/mdstat
Personalities : [linear]
unused devices:
Make sure that md0 : active is not displayed.
5
.
Check the correspondence with HDLM device.
Execute the HDLM-configuration definition utility dlmcfgmgr with the -v
parameter specified:
Creating an HDLM Environment
3-245
Hitachi Dynamic Link Manager User Guide for Linux ®