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Re: [Linux-cluster] HA with GFS and GNBD



You can't currently do this in a highly available way. You'd need
cluster aware software raid for it to work, and that's not available
yet. It shouldn't be too long before work on it gets underway since
this seems to be a commonly requested item.

--Brian Jackson


On Wed, 24 Nov 2004 15:15:31 -0000, Craig Ward <craig wotever net> wrote:
> Hi there,
> 
> We're trying to achieve a high availability fail over for data store
> that's part of a load balanced web server farm.
> 
> Is there a way of achieving a cheap SAN by using GFS on our webservers
> and exporting shares from two backend servers using GNBD so effectively
> having a network mirrored raid setup. The idea being if server #1 fails
> the web servers can still access the data from server #2.
> 
> Apologies in advance if this is a 'newbie' question but I've spent a
> while reading all the Redhat docs and I'm still unsure if this is
> something that can be achieved with GFS and GNBD alone.
> 
> The last solution at
> http://www.redhat.com/docs/manuals/csgfs/admin-guide/s1-ov-perform.html
> seems to be what we're looking for but it's shy on details.
> 
> Many thanks,
> Craig.
> 
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