[DRBD-user] Problems with DRBD and OCFS2 in Active-Active Mode

Fernando de Lima e Silva fernando.lima at bsd.com.br
Tue Jun 22 16:41:45 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.


So, to use automatic policy, Do I need use handlers and fencing too ?

Best Regards,
Fernando

2010/6/21 Joseph L. Casale <jcasale at activenetwerx.com>

> >Hi Joseph, thanks for you answer.
> >
> >I'm using ocfs2 and o2cb driver cluster. With my settings, always when I
> have split brain situation one node is Standole and the other WFConnection.
> >
> >Only when I setup the  after-sb-2pri disconnect, the two nodes are
> Standalone, so I execute the manual split brain recovery.
> >
> >I want setup a automatic policy to recovery.
>
> Use text mail and reply on list to keep the thread complete and
> benefit from the more experienced people on this list.
>
> Anyway, I understood this from your initial post: I pointed you
> to a doc that showed some possible configuration of drbd.conf
> under similar circumstances.
>
> If you read his config, he uses:
>
> disk {
>  fencing resource-and-stonith;
> }
>
> Which needs a handler (He wrote his own):
>
> handlers {
>  outdate-peer "/sbin/obliterate-peer.sh";
> }
>
> Note the net config difference? Both nodes are active, so this calls
> possible for some different handling of SB symptom.
>
> The difference is your using OCFS2 and not GFS{2} but it details a logical
> procedure. Essentially, the config params you seem to be using are not
> applicable to an active/active setup.
>
> jlc
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