Hitachi XP P9500 User Manual page 328

3. Creating an HDLM Environment
4. If necessary, back up the application data residing on the md device.
5. If file systems have been mounted on the md device, unmount them.
6. Check the status of the md device.
Execute the following command to check the configuration of the md device:
# cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sddlmaa1[0] sddlmab1[1]
5238528 blocks [2/2] [UU]
unused devices: <none>
Make sure that
7. Execute the following command to deactivate the md device:
# mdadm -Ss /dev/md0
8. Make sure that the md device has been deactivated.
In the following example, RAID1 (mirroring) is used for the md device:
# cat /proc/mdstat
Personalities : [raid1]
unused devices: <none>
Make sure that
9. Check the correspondence between the HDLM devices and SCSI devices.
Execute the HDLM-configuration definition utility
parameter specified:
# dlmcfgmgr -v
HDevName
/dev/sddlmaa configured /dev/sdh
/dev/sddlmab configured /dev/sdi
KAPL10302-I /sbin/dlmcfgmgr completed normally.
The
HDevName
respectively.
10. Edit the configuration file.
Based on the correspondence between the HDLM devices and SCSI devices
304
and the HDLM devices are displayed:
md0 : active
is not displayed.
md0 : active
Management Device
and columns display HDLM devices and SCSI devices,
Device
with the
dlmcfgmgr
Host Channel Target Lun
1 0
1 0
-v
0 0
0 1