[CentOS] Centos 4.3 & drbd

[centos at bathnetworks.com]

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On Mon, Jun 12, 2006 at 07:14:23AM +0100, centos at bathnetworks.com wrote:
>> > On Sun, 2006-06-11 at 20:59 +0100, centos at bathnetworks.com wrote:
>> >> Starting DRBD resources:    [ d0 ioctl(,SET_DISK_CONFIG,) failed:
>> >> Invalid
>> >> argument
>> >> Lower device is already mounted.
>> >>
>> >
>> > I think you are not understanding what drbd does.
>> >
>> > It is network RAID1 ... you can't mount and use the DRBD device on
>> both
>> > machines at the same time.  It is designed so that if the first
>> machine
>> > fails, the second machine / partition is used instead.
>> >
>>
>> Jonny,
>>
>> Thanks for the info. I understand that point. However, with DRBD not
>> running or mounted on shorty, Fs1 still gives the same error.
>
> You are correct. The "lower device" in this message is the physical disk.
> Specifically, /dev/hde1 (as configured).
>
> I have no idea why you are getting this message, but that Invalid Argument
> error doesn't look to good for me.
>
> - --
> Rodrigo Barbosa
> "Quid quid Latine dictum sit, altum viditur"
> "Be excellent to each other ..." - Bill & Ted (Wyld Stallyns)
>
Thanks Rodrigo,

I'm still having problems with this. I've currently got the machine
running stand alone (no network connections). I have changed the hard
drives just in case with no change. I have also moved drives around so
that there is a diffent drive running as hdc instaed of hde, again the
same error occours. Adding more (smaller) partitions gives the same
result.

One thing I have found is that /dev/drbd0 was missing, but on the other,
working machine it was created presumably when I installed drdb etc.
Perhaps the installation was messedup in some way. The only other thing I
can think of is that Centos is reporting the drive as being mounted when
it isn't.

Rob