Yes, you should not mount the lower block devices, only the /dev/drbd1 device. Take any lower devices out of /etc/fstab.

On 3/18/10 12:04 PM, Cameron Smith wrote:
I am experiencing the error:

"# drbdadm up r0
/dev/drbd1: Failure: (114) Lower device is already claimed. This usually means it is mounted. Command 'drbdsetup /dev/drbd1 disk /dev/sda2 /dev/sda6 0 --set-defaults --create-device' terminated with exit code 10"

DRBD was syncing between node1 and node2 and when I rebooted node1 I got this from cat/proc/drbd:
1:r0   Connected  Secondary/Secondary  Diskless/UpToDate

So I ran:
drbdadm up r0

and got the above error.

Is the lower device the actual partition the drbd device is on which is my case is /dev/sda2?

Should that /dev/sda2 not be mounted at boot?

What do I do to make DRBD happy on reboot?

Thanks!
Cameron


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