HP Hitachi Dynamic Link Manager Software - Manual (Page 260)

3. Creating an HDLM Environment
236
If the configuration file
/etc/mdadm.conf
has already been created, execute the
following command to create a backup:
# cp -pr /etc/mdadm.conf /etc/mdadm.conf.backup
5. Execute the following command to create a configuration file:
# echo "DEVICE /dev/sddlmaa1 /dev/sddlmab1" >> /etc/
mdadm.conf
# mdadm --detail --scan | grep -w "/dev/md0" >> /etc/
mdadm.conf
For
sddlmaa1
and
sddlmab1
, specify the HDLM devices corresponding to
md0
,
which was displayed in step 3.
The following example shows the contents of the created configuration file:
# cat /etc/mdadm.conf
DEVICE /dev/sddlmaa1 /dev/sddlmab1
ARRAY /dev/md0 level=raid1 num-devices=2
UUID=e39a6b15:32e48a5d:ca05f4db:25bc8af9
For details about the contents of the configuration file, see the Linux
documentation or use the
man
command.
6. Edit the configuration file created in step 5.
Edit the
/etc/mdadm.conf
file to add
auto=yes
to the
ARRAY
line:
DEVICE /dev/sddlmaa1 /dev/sddlmab1
ARRAY /dev/md0 level=raid1 num-devices=2
UUID=e39a6b15:32e48a5d:ca05f4db:25bc8af9 auto=yes
7. Restart the host.
8. Make sure that the md device has been activated.
In the following example, RAID1 (mirroring) is used for the md device:
# cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sddlmaa1[0] sddlmab1[1]
5238528 blocks [2/2] [UU]
unused devices: <none>