[Samba] CTDB with 3 nodes and local disks without a dedicated SAN

Daniel Müller mueller at tropenklinik.de
Thu Oct 7 10:27:05 MDT 2010

 you should try iscsi drbd gfs if you think and mix wisely it should
start. THis is, you have on central point of storage where all three nodes
write to and this storage backed up.
My latest try with ctdb did not work on CentOs. The package was brocken.
And I think it is not
possible to cluster a DC.


On Thu, 7 Oct 2010 17:35:17 +0200, Max <mxx2 at mailspot.at> wrote:
> Hello,
> First, sorry, I know that this is by far not 100% samba related but 
> since this setup is exclusively for samba + CTDB and as such is no 
> ordinary setup, I thought it might be good to ask here.
> I'm having a hard time figuring out how to accomplish the following:
> I'd like to set up 3 samba nodes clustered with CTDB, with each 
> node/machine having its own sets of local disks.
> It would be great if 2 machines and/or sets of local disks could fail 
> the same time without taking down samba.
> Is this only possible using DRBD as suggested in the current Samba 3
> As I understand DRBD only allows 2 nodes and an optional 3rd for 
> disaster recovery.
> Does anyone have any idea or recommendations on how to do this without 
> DRBD's limitation of 2 storage nodes?
> Thank you very much for any help!
> Regards,
> Max

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