On Wed, Aug 29, 2007 at 08:25:59PM -0700, chee wrote:
>
> 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.
>
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
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