[DRBD-user] allow-two-primary on ext3

Raoul Bhatia [IPAX] r.bhatia at ipax.at
Thu Sep 9 08:50:27 CEST 2010

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

On 08.09.2010 23:52, Pavlos Parissis wrote:
> My initial situation was as follows, node-01 primary for
> drbd_pbx_service_1 resource and node-02 primary for drbd_pbx_service_2
> resource.
> I tried to get the node-03 as primary for both resources but I got the
> error message " Multiple primaries not allowed by config"
> here is the steps which I followed

you have to demote the current primary to secondary before you promote
another node from secondary to primary.

> I read the manual for allow-two-primary settings and basically states
> that I can't do what I want, since I use ext3 fs on drbd devices.
> But, I don't quite understand why, since these 2 resources are running
> on different disks and over different connections. I don't understand
> how the FS on them will get corrupted.

that is true. but in your case, the solution is as stated above.


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