Re: [Pacemaker] A lot of errors in log

2012-07-16 Thread Виталий Давудов
Don't worry about this question. I've already found the answer in google ... 16.07.2012 8:31, Andrew Beekhof пишет: On Fri, Jul 13, 2012 at 6:19 PM, Виталий Давудов vitaliy.davu...@vts24.ru wrote: Hi! Some time ago I upgraded my cluster installation: migrate pacemaker from 1.0.12 to 1.1.5

Re: [Pacemaker] drbd under pacemaker - always get split brain

2012-07-16 Thread Nikola Ciprich
It is not. Pacemaker may just be quicker to promote now, or in your setup other things may have changed which also changed the timing behaviour. But what you are trying to do has always been broken, and will always be broken. Hello Lars, You were right, fixing configuration indeed

[Pacemaker] Seeking suggestions for cluster configuration of HA iSCSI target and initiators

2012-07-16 Thread Phil Frost
I'm designing a cluster to run both iSCSI targets and initiators to ultimately provide block devices to virtual machines. I'm considering the case of a target failure, and how to handle that as gracefully as possible. Ideally, IO may be paused until the target recovers, but VMs do not restart

Re: [Pacemaker] Seeking suggestions for cluster configuration of HA iSCSI target and initiators

2012-07-16 Thread Digimer
On 07/16/2012 01:14 PM, Digimer wrote: On 07/16/2012 12:08 PM, Phil Frost wrote: I'm designing a cluster to run both iSCSI targets and initiators to ultimately provide block devices to virtual machines. I'm considering the case of a target failure, and how to handle that as gracefully as

Re: [Pacemaker] Seeking suggestions for cluster configuration of HA iSCSI target and initiators

2012-07-16 Thread Digimer
On 07/16/2012 12:08 PM, Phil Frost wrote: I'm designing a cluster to run both iSCSI targets and initiators to ultimately provide block devices to virtual machines. I'm considering the case of a target failure, and how to handle that as gracefully as possible. Ideally, IO may be paused until

Re: [Pacemaker] Seeking suggestions for cluster configuration of HA iSCSI target and initiators

2012-07-16 Thread Phil Frost
On 07/16/2012 01:14 PM, Digimer wrote: I've only tested this a little, so please take it as a general suggestion rather than strong advice. I created a two-node cluster, using red hat's high-availability add-on, using DRBD to keep the data replicated between the two SAN nodes and tgtd to export

Re: [Pacemaker] Seeking suggestions for cluster configuration of HA iSCSI target and initiators

2012-07-16 Thread Maurits van de Lande
Hello, The last couple of months I've been busy on setting up highly available iSCSI targets and using the iSCSI luns in a KVM virtualisation cluster. The iSCSI targets are setup using pacemaker, drbd, stgt and CentOS 6. Unfortunately I have not had the time to compile and test LIO

Re: [Pacemaker] [patch] Seeking suggestions for cluster configuration of HA iSCSI target and initiators]

2012-07-16 Thread Phil Frost
On 07/16/2012 01:34 PM, Phil Frost wrote: I've been doing some study of the iscsi RA since my first post, and it seems to me now that the failure in the monitor action isn't actually in the monitor action at all. Rather, it appears that for *all* actions, the RA does a discovery step, and