[Linux-cluster] CLVMD without GFS

[brem belguebli]

Hola Rafael,

Thanks a lot, that'll avoid me going from scratch.

I'll have a look at them and keep you updated.

Brem



2009/7/21, Rafael Micó Miranda <rmicmirregs at gmail.com>:
>
> Hi Brem,
>
> El mar, 21-07-2009 a las 16:40 +0200, brem belguebli escribió:
> > Hi,
> >
> > That's what I 'm trying to do.
> >
> > If you mean lvm.sh, well, I've been playing with it, but it does some
> > "sanity" checks that are wierd
> >      1. It expects HA LVM to be setup (why such check if we want to
> >         use CLVM).
> >      2. it exits if it finds a CLVM VG  (kind of funny !)
> >      3. it exits if the lvm.conf is newer than /boot/*.img (about this
> >         one, we tend to prevent the cluster from automatically
> >         starting ...)
> > I was looking to find some doc on how to write my own resources, ie
> > CLVM resource that checks if the vg is clustered, if so by which node
> > is it exclusively held, and if the node is down to activate
> > exclusively the VG.
> >
> > If you have some good links to provide me, that'll be great.
> >
> > Thanks
> >
> >
> > 2009/7/21, Christine Caulfield <ccaulfie at redhat.com>:
> >         On 07/21/2009 01:11 PM, brem belguebli wrote:
> >                 Hi,
> >                 When creating the VG by default clustered, you
> >                 implicitely assume that
> >                 it will be used with a clustered FS on top of it (gfs,
> >                 ocfs, etc...)
> >                 that will handle the active/active mode.
> >                 As I do not intend to use GFS in this particular case,
> >                 but ext3 and raw
> >                 devices, I need to make sure the vg is exclusively
> >                 activated on one
> >                 node, preventing the other nodes to access it unless
> >                 it is the failover
> >                 procedure (node holding the VG crashed) and then re
> >                 activate it
> >                 exclusively on the failover node.
> >                 Thanks
> >
> >
> >         In that case you probably ought to be using rgmanager to do
> >         the failover for you. It has a script for doing exactly
> >         this :-)
> >
> >         Chrissie
> >
> >
> >         --
> >         Linux-cluster mailing list
> >         Linux-cluster at redhat.com
> >         https://www.redhat.com/mailman/listinfo/linux-cluster
> >
> >
> > --
> > Linux-cluster mailing list
> > Linux-cluster at redhat.com
> > https://www.redhat.com/mailman/listinfo/linux-cluster
>
> Please, check this link:
>
> https://www.redhat.com/archives/cluster-devel/2009-June/msg00020.html
>
> I found exactly the same problem as you, and i developed the
> "lvm-cluster.sh" script to solve the needs I had. You can find the
> script on the last message of the thread.
>
> I submitted it to make it part of the main project, but i have no news
> about that yet.
>
> I hope this helps.
>
> Cheers,
>
> Rafael
>
> --
> Rafael Micó Miranda
>
> --
> Linux-cluster mailing list
> Linux-cluster at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-cluster
>
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