On Friday July 1, 01771@xxxxxx wrote: > Hello, > > Xorg recently crashed and I was forced to reset the computer. After booting I > discovered that partition 'sda10' was missing from an array. I checked the > logs, since I suspected that 'sda' was faulty, but there was no messages > about 'sda' at all. So I examined the md device and sda device. > Nothing seemed wrong as far as I could tell (its SATA, so I cant run a > internal diagnostic on the harddrive, since my kernel doesnt support SMART > for SATA), so I went on and added 'sda10' back to the array. But nothing > happened and the array was still marked inactive. > I then stopped the array with 'mdadm -S /dev/md8' and got this in kernel log: > [kernel] md: md8 stopped. > > I then executed 'mdadm --assemble --scan'. > This is the entries in /etc/mdadm.conf (two lines): > DEVICE /dev/sda10 /dev/sdb10 /dev/sdc10 /dev/sdd10 > ARRAY /dev/md8 level=raid5 num-devices=4 > UUID=fc549abf:0e1662f3:3b60b5c3:7a8e6fc7 > devices=/dev/sda10,/dev/sdb10,/dev/sdc10,/dev/sdd10 > And this is from the kernel log: > [kernel] md: bind<sda10> > [kernel] md: bind<sdc10> > [kernel] md: bind<sdd10> > [kernel] md: bind<sdb10> > [kernel] md: kicking non-fresh sda10 from array! > [kernel] md: unbind<sda10> > > Since I have no idea what is suddently wrong with 'sda10' I went on and added > it back to the array 'mdadm /dev/md8 -a /dev/sda10' output: 'mdadm: > added /dev/sda10' > >From kernel log: > [kernel] md: bind<sda10> Are you sure there are no messages like: raid5: cannot start dirty degraded array for md1 and raid5: failed to run raid set md1 ?? In any case, try adding "--force" to "mdadm --assemble", but be aware that data corruption may have happened. If a raid5 suffers an unclean shutdown and a lost drive, it is possible that some blocks will contain garbage, and impossible to know which ones. NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
