Using my Mirror disk to boot up.
i,
This is my Filesystem:
Filesystem Size Used Avail Use% Mounted on/dev/md0 9.7G 6.6G 2.7G 72% /
none 189M 0 189M 0% /dev/shm/dev/md2 103G 98G 289M 100% /home
and this is mirror settings:
Personalities : [raid1]
md1 : active raid1 hda2[0] hdd2[1]
512000 blocks [2/2] [UU]
md2 : active raid1 hdd3[1] hda3[0]
109298112 blocks [2/2] [UU]
md0 : active raid1 hdd1[1] hda1[0]
10240128 blocks [2/2] [UU]
The problem i am facing is my mirror disk does not seem to boot up when i swap hard disk to test where my mirroring disk is working. The only thing i see was this 'LI' in the monitor and hangs there.
I am quite new to mirror disk. PLease do advise me. Thanks
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Quoted 19 lines · chee
i,
This is my Filesystem:
Filesystem Size Used Avail Use% Mounted on
/dev/md09.7G 6.6G 2.7G 72% /
none 189M 0 189M 0%/dev/shm/dev/md2103G 98G 289M 100% /homeand this is mirror settings:
Personalities : [raid1]
md1 : active raid1 hda2[0] hdd2[1]
512000 blocks [2/2] [UU]md2 : active raid1 hdd3[1] hda3[0]
109298112 blocks [2/2] [UU]
Quoted 7 lines
md0 : active raid1 hdd1[1] hda1[0]
10240128 blocks [2/2] [UU]The problem i am facing is my mirror disk does not seem to boot up when i swap hard disk to test where my mirroring disk is working. The only thing i see was this 'LI' in the monitor and hangs there.
The problem is (most likely) that your mirrors only cover the hd[ad][123] partitions, and not the whole disk. Thus, the MBR of hda is not synchronized to hdd.
You can do two things here:
- fix your lilo.conf to correctly write to both hda and hdd (IIRC, you need the directive raid-extra-boot=mbr or raid-extra-boot=mbr-only, depending on how exactly you install lilo)
- change to a partitionable raid array instead of three arrays (one for each partition); that will cover also the mbr of the drive
regards,
iustin