Re: Using GFS and DLM without RHCS

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Danny Wall wrote:
> I was wondering if it is possible to run GFS on several machines with
a
> shared GFS LUN, but not use full clustering like RHCS. From the FAQs:

> First of all, what's the problem with having RHCS running? It doesn't 
> mean you have to use it to handle resources failing over. You can run
> it all in active/active setup with load balancing in front.

I was looking to minimize everything as much as possible, so if it is
not needed, do not install it. This would reduce problems with updates
and overall management. Having said that, your solution is still a
better alternative for my needs, and options like this are what I am
looking for. Thanks

> If this is not an acceptable solution for you and you still cannot be 
> bothered to create cluster.conf (and that is all that is required), 
> you can always use OCFS2. This doesn't have a cluster component (it's 
> totally unrelated to RHCS), but you still have to create the 
> equivalent config, so you won't be saving yourself any effort.

> Gordan

OCFS is out of he question. OCFS can not handle the number of files and
directories on these servers. 

I don't technically need a cluster, but the cluster filesystem allows me
to have multiple servers with access to the storage at the same time,
reducing downtime, and allowing for processes like backups to run on a
different server and not overload the server used by the end users. If I
can implement this without the cluster, it will reduce complexity. Some
of the problems I have seen recently include the cluster failing to
relocate resources, and not properly fencing a node.

Thanks
Danny




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