El 22/04/13 13:01, Lars Marowsky-Bree escribió:
> On 2013-04-22T11:14:14, "Angel L. Mateo" <[email protected]> wrote:
>
>> The problem I have is that I have firstly configured the cluster with
>> CLVM, but with this I can't create snapshots of my volumes, which is
>> required for backups.
>>
>> But is this CLVM really necessary? Or it is enough to configure LVM
>> with fencing and stonith?
>
> If you're happy with having each volume group being active/passive, yes,
> a normal LVM resource with fencing etc is sufficient.
>
> cLVM is only needed if you need to concurrently manage a volume group
> cluster-wide. The choice can be made per VG.
>
Then, I want to configure cman + corosync + pacemaker (as described at
1). With this in mind which fence mechanism should I use? fence_scsi (my
shared storage is in fibre channel scsi san)? Or the pcmk fence is
enough? Where can I found documentation for fence mechanisms?
In other configuration scenarios (2) using clvm, a dlm and sfex (3)
resource is also created. Should I configure it too?
Thanks for your help.
1. http://clusterlabs.org/quickstart-ubuntu.html
2.
https://www.suse.com/documentation/sle_ha/book_sleha/?page=/documentation/sle_ha/book_sleha/data/book_sleha.html
3. http://www.linux-ha.org/wiki/Sfex_%28resource_agent%29
--
Angel L. Mateo Martínez
Sección de Telemática
Área de Tecnologías de la Información
y las Comunicaciones Aplicadas (ATICA)
http://www.um.es/atica
Tfo: 868887590
Fax: 868888337
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