Re: [Pacemaker] Problem with dual-PDU fencing node with redundant PSUs

2013-06-27 Thread Digimer
On 06/27/2013 11:45 AM, Lars Marowsky-Bree wrote: > On 2013-06-27T11:32:36, Digimer wrote: > time and I expect many users will run into this problem as they try to migrate to RHEL 7. I see no reason why this can't be properly handled in pacemaker directly. >>> Yes, why not, choice

Re: [Pacemaker] Problem with dual-PDU fencing node with redundant PSUs

2013-06-27 Thread Lars Marowsky-Bree
On 2013-06-27T11:32:36, Digimer wrote: > >> time and I expect many users will run into this problem as they try to > >> migrate to RHEL 7. I see no reason why this can't be properly handled in > >> pacemaker directly. > > Yes, why not, choice is a good thing ;-) > If an established configuration

Re: [Pacemaker] Problem with dual-PDU fencing node with redundant PSUs

2013-06-27 Thread Digimer
On 06/27/2013 11:08 AM, Lars Marowsky-Bree wrote: > On 2013-06-27T10:56:40, Digimer wrote: > >> However, this feels like a really bad solution. It's not uncommon to >> have two separate power rails feeding either side of the node's PSUs. >> Particularly in HA environments. > > True. But gating t

Re: [Pacemaker] Problem with dual-PDU fencing node with redundant PSUs

2013-06-27 Thread Lars Marowsky-Bree
On 2013-06-27T10:56:40, Digimer wrote: > However, this feels like a really bad solution. It's not uncommon to > have two separate power rails feeding either side of the node's PSUs. > Particularly in HA environments. True. But gating them through the same power switch is *not* a SPoF from the cl

Re: [Pacemaker] Problem with dual-PDU fencing node with redundant PSUs

2013-06-27 Thread Lars Marowsky-Bree
On 2013-06-27T16:52:02, Dejan Muhamedagic wrote: > > I don't want the cluster stack to start on boot, so I disable > > pacemaker/corosync. However, I do want the node to power back on so that > > I can log into it when the alarms go off. Yes, I could log into the good > > node, manually unfence/b

Re: [Pacemaker] Problem with dual-PDU fencing node with redundant PSUs

2013-06-27 Thread Digimer
On 06/27/2013 10:52 AM, Dejan Muhamedagic wrote: > On Thu, Jun 27, 2013 at 09:54:13AM -0400, Digimer wrote: >> On 06/27/2013 07:02 AM, Dejan Muhamedagic wrote: >>> Hi, >>> >>> On Wed, Jun 26, 2013 at 03:52:00PM -0400, Digimer wrote: This question appears to be the same issue asked here: >

Re: [Pacemaker] Problem with dual-PDU fencing node with redundant PSUs

2013-06-27 Thread Dejan Muhamedagic
On Thu, Jun 27, 2013 at 09:54:13AM -0400, Digimer wrote: > On 06/27/2013 07:02 AM, Dejan Muhamedagic wrote: > > Hi, > > > > On Wed, Jun 26, 2013 at 03:52:00PM -0400, Digimer wrote: > >> This question appears to be the same issue asked here: > >> > >> http://oss.clusterlabs.org/pipermail/pacemaker/

Re: [Pacemaker] Problem with dual-PDU fencing node with redundant PSUs

2013-06-27 Thread Digimer
On 06/27/2013 07:02 AM, Dejan Muhamedagic wrote: > Hi, > > On Wed, Jun 26, 2013 at 03:52:00PM -0400, Digimer wrote: >> This question appears to be the same issue asked here: >> >> http://oss.clusterlabs.org/pipermail/pacemaker/2013-June/018650.html >> >> In my case, I have two fence methods per no

Re: [Pacemaker] Problem with dual-PDU fencing node with redundant PSUs

2013-06-27 Thread Dejan Muhamedagic
Hi, On Wed, Jun 26, 2013 at 03:52:00PM -0400, Digimer wrote: > This question appears to be the same issue asked here: > > http://oss.clusterlabs.org/pipermail/pacemaker/2013-June/018650.html > > In my case, I have two fence methods per node; IPMI first with > action="reboot" and, if that fails,

[Pacemaker] Problem with dual-PDU fencing node with redundant PSUs

2013-06-26 Thread Digimer
This question appears to be the same issue asked here: http://oss.clusterlabs.org/pipermail/pacemaker/2013-June/018650.html In my case, I have two fence methods per node; IPMI first with action="reboot" and, if that fails, two PDUs (one backing each side of the node's redundant PSUs). Initially