RAID drive failed, but SMART shows no errors?

[Mogens Kjaer]

Sam Varshavchik wrote:
...
> Came up clean.  Nothing shown for LBA_first_err.  But the fact remains 
> that the drive did err out.  smartctl -a shows "Elements in grown defect 
> list: 3", so I suppose that it remapped 3 sectors.  I can't find 
> anything in the output that tells me how many spare sectors are 
> available for remapping.

If you take a look at:

http://labs.google.com/papers/disk_failures.pdf

you can see that if a drive have had sectors remapped, the likelihood
that the drive will fail within the next 60 days increase with a
factor 14.

...
>> Hm? If you have used the GUI to create the RAID partitions during
>> installation GRUB should be on both drives.
> 
> No, I don't believe I used a GUI; I believe this was originally a text 
> install.  grub-install takes a parameter, according to its man page.  
> It's not clear, but I think that passing it /dev/sdb will install it to 
> the second drive.  But, reading the man page's description of the 
> --root-directory parameter muddled things a bit.  Not sure I understand 
> its purpose.
> 

Can't you do a:

grub-install /dev/md0

if md0 is your /boot partition?

Mogens

-- 
Mogens Kjaer, Carlsberg A/S, Computer Department
Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark
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Email: mk at crc.dk Homepage: http://www.crc.dk