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drbd-user: Re: [DRBD-user] Lower device is already claimed

Re: [DRBD-user] Lower device is already claimed

From: David Coulson <david_at_nospam>
Date: Thu Mar 18 2010 - 16:06:53 GMT
To: Cameron Smith <velvetpixel@gmail.com>

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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