Re: [Evms-devel] How to use EVMS and Linux-HA together?

[Steve D. <st...@us...>]

Eric <eri...@gm...> wrote on 03/17/2006 07:57:07 PM:

> That means Cluster Segment Manager Plug-in will work only when I
> have disks that are physically shared among multiple machines ?

Technically, you can add the CSM to a local disk; the CSM doesn't have any
checks as to w what kind of disk or segment it is assigned to.  However, as
Kevin mentioned, it's rather useless for a running system since it adds
another layer t the volume stack that doesn't do anything.  But you can add
the CSM to a local disk if you just want to play around with it and see how
it works.  Of course, you will only be able to add the CSM to a disk if you
have Linux-HA running and the cluster membership has quorum.

> And so does the option Setting -> Node Administrated...? This option is
> always diabled in my EVMS, I don't know why...

Is heartbeat running?  Is the evms daemon, evmsd, running?  Did the EVMS
Linux-HA plug-in connect to heartbeat (i.e., it didn't display an error
message saying it could not connect to Linux-HA with an error such as "No
such device")?  Does the Linux-HA cluster membership have quorum (run
"evmsccm -v")?  If the answer to any of these questions is "no" then EVMS
will not let you administer another node in the cluster.

Steve D.