On 12.10.2011 10:22, huang jun wrote:
2011/10/12 Damien Churchill<damoxc@xxxxxxxxx>:
On 12 October 2011 02:22, huang jun<hjwsm1989@xxxxxxxxx> wrote:
I use the UUID option to mount the btrfs disk,but i can not success.
first, the disk is /dev/sdd1
then, i pull out the disk
and after mintues, pushed it again,at this time, it changes to /dev/sde1
at this time, if we use /etc/init.d/ceph restart, it will failed, for
the current mount option is likely "/dev/sd** "
but the UUID didn't change.
why i can not mount it successfuly?
BTW, does ceph provides methods to resolve the condition like that?
the starce file attached.
thanks!
Hi,
I switched to use the symlinks created by udev in /dev/disk/by-id/
which contains the hard-disks serial number which will be completely
static, even if a new btrfs filesystem is created. This ensures that
the same partition on the same disk is always used.
Regards,
Damien
can you mount successfully by using the /dev/disk/by-id/ instead of /dev/sd**?
and how to get the hard-disk serial number? I have tried "udevadm info
-a -p $(udevadm info -q path -n $btrfs_devs)", but failed to get it.
or you should test the condition like that, pull out the disk first
and then push it in after few minutes.
thanks!
for example with smartctl from the smartmontools you can get the s/n.
smartctl -i /dev/sd*
- Thomas
--
To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
