[Linux-cluster] GFS kernel patch? (and more)

[Stephen Amadei]

Thanks.  I might try putting the GFS1 in the kernel tree... but quite frankly, adding bits to the kernel without a patch is a bit beyond my talents.
 
I've been using GFS2 for a project for some time.  It's GFS2 over DRBD.  The system is production, but the GFS2 filesystem on it isn't.  In fact, left mounted for a few weeks and untouched, it eventually zombies any process that tries to even 'ls' the filesystem... leading to a late night reboot.  Granted, this project has had a lot of side tracking... such as being shipped out with a fubar L2 switch.
 
I am building a second cluster for a separate project, and I can be more daring with this until it has to go production... the reason I'd like to give GFS1 a try.
 
I have used DRBD for years... but GFS/Cluster is still new to me.  To build the GFS2 volume, I followed the LinBit GFS2 documentation.  I recently looked at some of the DRBD_Cookbook and I noticed it uses fencing, whereas LinBit's doc doesn't use it.  My cluster.conf is short and sweet:
 
<?xml version="1.0"?><cluster name="clust" config_version="1"><clusternodes><clusternode name="clust1a" nodeid="1"></clusternode><clusternode name="clust1b" nodeid="2"></clusternode></clusternodes><logging to_stderr="yes"><logger ident="CMAN" debug="on" to_stderr="yes"/></logging></cluster>
 
Have I followed an oversimplified path?  Is it a case where I need the fencing as in the DRBD_Cookbook?  From the perspective of the LinBit GFS2 doc, Cluster is only used to get the DLM and CLVMD running.
 
Thanks in advance.
 
Stephen
> ----- "Stephen Amadei" <stephenamadei at hotmail.com> wrote:> | Am I crazy or was there a GFS kernel patch that was needed to use GFS> | with 2.6.27.x/2.03.09?> | > | Now it looks like GFS is only available as a kernel module. Is there a> | way to patch this into the kernel?> | My kernels don't run modules.> | > | Thanks.> | > | Stephen> > Hi Stephen,> > AFAIK, gfs was always a kernel module. You might be able to patch it in> to the kernel source tree by hand, but I've never done it.> > There was a gfs patch to enable it to allocate files properly for newer> kernels, such as 2.6.27.x. That was just to do a little kernel catchup> in gfs1.> > On the other hand, GFS2 has been a part of the base kernel for a while> now, although it's still not considered production ready. I think the> version currently pulled into Linus's tree is pretty good. Steve> Whitehouse's "nmw" git tree in kernel.org has the latest/greatest GFS2> and should be fairly stable, although it's a moving target.> > Regards,> > Bob Peterson> Red Hat GFS> > --> Linux-cluster mailing list> Linux-cluster at redhat.com> https://www.redhat.com/mailman/listinfo/linux-cluster
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