On Tue, Mar 14, 2000 at 07:48:33PM -0500, Paramasivam Kartik wrote:
> Hi,
>
> i have set up an md (raid1) device. it has two hard disks.
>
> Something has gone bad on the disks, such
> that whenever I do a raidstart or mkraid, it
> says
> raid set md0 not clean. starting background reconstr.. ..
>
> what can I do to clean my md device.
> I don't have any important data on my disks and don't mind even
> reformatting both of them..
This should be normal. Check /proc/mdstat. It should show that it is
setting-up/reconstructing the drives and giving an estimated time for
completion. Let it have enough time to complete before restarting the
system. It can take an hour or so (for 10G on a regular [read: slow]
PC), maybe less.
> mkraid --really-force also is not helpful .
> i have tried destroying both hard disk partitions using fdisk
> and doing a clean raid setup, still it starts the background
> reconstruction.
>
> also what is the command to do a low level format of the harddisk
> in linux?
You could do a 'mkfs -c ...'
That does a 'bad block' check. That really is a bit pointless with a
raid, tho....(I think?) You should get IDE errors logged if a drive
is dying or produces errors (I just experienced that
unfortunately...).
If nothing else, make sure your raidtools matches the kernel patches
you use, and RTFM! The package should come with a HOWTO which is
really quite good.
Good luck!
Phil
--
Philip Edelbrock -- IS Manager -- Edge Design, Corvallis, OR
[EMAIL PROTECTED] -- http://www.netroedge.com/~phil
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