[Linux-cluster] LVS+GFS+GNBD
Benjamin Marzinski
bmarzins at redhat.com
Sat Mar 31 03:37:17 UTC 2007
On Wed, Mar 28, 2007 at 09:29:15AM +0800, Lee Siang Fong wrote:
> Dear All,
>
> I am planning to use only 2 nodes clusters sharing 1 storage location,
> which is a Raid 5 SCSI hard drives of another HP DL385 machine. Appreciate
> if you advise me the following:-
>
> 1. Can GNBD work well in this case?
Yes, GNBD is fine for this setup.
> 2. I have successfully installed GNBD and GFS( all in one server) and
> mount it locally to 2 web cluster nodes(I put mount command in rc.local),
> but when 1 do simulation on shutting down 2 webservers, it hung; i have to
> manually shut it down. When I start both servers, it takes very long time
> to startup, sometimes it also hung? Any suggestion?
You may have your cluster set up correctly, but I'm not sure from your
description. If you have the GFS source, look at cluster/doc/min-gfs.txt You
can also look at this file online through the web interface to CVS at
http://sources.redhat.com/cluster/. This has a description of how you should
set up a 2 node cluster, using a third node as a GNBD server. The hangs could
also be a problem with the init scripts.
> 3. I hardly find GFS mounting instruction in RHCS tools, I tried to mount
> GFS as Shared Resources, but it can only mount at 1 server at a time.
look at cluster/doc/usage.txt and cluster/doc/min-gfs.txt for mounting
instructions. If this doesn't help, could you post a copy of the error
message you are getting?
> 4. I have used back the old school method, I only used NFS for my data.
> May I know if there are any performance issues? ( i think we have little
> chances to faced data corruption due to most of the clients are merely
> downloading the contents).
>
>
> Thanks a and sorry for my bad english.
>
> Rdgs
> SFLee
>
> --
> Linux-cluster mailing list
> Linux-cluster at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-cluster
More information about the Linux-cluster
mailing list