Re: [Ocfs2-users] Question about eth communication for ocfs2

2011-02-08 Thread Alain.Moulle
Hi Sunil, yes I know about ocfs2.pcmk, but it was absolutely not working in previous releases, so : - is this stack ocfs2 for pacemaker maintained , supported ? - is it really used on some customers clusters ? Thanks Regards Alain Sunil Mushran a e'crit: On 02/08/2011 01:32 AM, Alain.Moulle wr

Re: [Ocfs2-users] Question about eth communication for ocfs2

2011-02-08 Thread Sunil Mushran
On 02/08/2011 01:32 AM, Alain.Moulle wrote: > OK but what I wonder now is : > is OCFS2 really capable of fencing an adjacent node ? > or is it only capable of "node self-fencing" ? > I thought that ocfs2 was only capable of "node self-fencing" because > there is no configuration of any fencing devi

Re: [Ocfs2-users] Determining which version of ocfs2 tools a filesystem was created with.

2011-02-08 Thread Sunil Mushran
On 02/07/2011 10:41 PM, Mikey Austin wrote: > We have been using the ocfs2 tools (version 1.4.4) on gentoo (2.6.18-164.15.1 > kernel) for around 6 months now. We would like to re-create all of the ocfs2 > filesystems that were not created with mkfs.ocfs2 version 1.4.4, however we > are not able to

Re: [Ocfs2-users] Question about eth communication for ocfs2

2011-02-08 Thread Alain.Moulle
Hi, sorry but I don't understand, do you mean that even if the linkcom problem is only on node1 side (i.e. if the Eth Board has a breakdown) ,you mean that this will lead to a self-fence of node1 whereas it is node 0 which has the real problem ? Thanks for this precision PS : and no, I can't

Re: [Ocfs2-users] Question about eth communication for ocfs2

2011-02-08 Thread Karim Alkhayer
In a two-node setup, node 0 will survive, because that's the node with the lowest node number (as defined in cluster.conf). You may want to think about adding a third [FAKE] node; if this is a feasible workaround, then only the troublesome node should fence itself. -Original Message

Re: [Ocfs2-users] Question about eth communication for ocfs2

2011-02-08 Thread Alain.Moulle
Hi, I have give it a try : linkcom PtP between node1 and node2 IO traffic on OCFS2 on both sides unplug the PtP cable from both nodes =>both IO traffic on OCFS2 are stalled =>after a short while, node2 self-fences, =>whereas a short while after the self-fence of node2 , IO traffic on node1 s

Re: [Ocfs2-users] Question about eth communication for ocfs2

2011-02-08 Thread Alain.Moulle
And a relative question : if there is a network breakdown on the only communication link for ocfs2 in a two-nodes cluster, what is the behavior : - will both nodes decide to suicide ? - will both nodes remain alive providing the exchanges of informations on disk are always wo