[Linux-cluster] rhel5 gfs1 or gfs2, how to prove that i have gfs1

[Anuj Singh (अनुज)]

Thanks kevin and Bob for the information.
When can we expect GFS2 for production?





On Mon, Aug 18, 2008 at 8:56 PM, Brett Cave <brettcave at gmail.com> wrote:

> 2008/8/18 Anuj Singh (अनुज) <anujhere at gmail.com>:
> > Hello everyone,
> > I created a cluster on rhel5,
> > To make the gfs1 file system I used following command.
> >
> > ' gfs_mkfs -t new_cluster:GFS -p lock_dlm -j2 /dev/MyVol0/MyLV0'
> >
> > Mounted /dev/MyVol0/MyLV0  on  /image.
> > 'mount -t gfs /dev/MyVol0/MyLV0 /image '
> > No error I got.
> >
> > Mount command gives me.
> > /dev/mapper/MyVol0-MyLV0 on /image type gfs
> > (rw,hostdata=jid=0:id=131073:first=1)
> >
> > My questions:
> > 1) How to prove that I have gfs1 file system in use.
> > 2) Ismod |grep gfs gives me.
> > [root at pr0031 CL]# lsmod |grep gfs
> > gfs                   252740  1
> > gfs2                  341965  2 gfs,lock_dlm
> > configfs               28753  2 dlm
> > 3) rmmod gfs2
> > ERROR: Module gfs2 is in use by gfs,lock_dlm
> > ^^ why gfs2 module is in use?
> > as lock_dlm is associated with gfs2, does it mean it's not production
> ready?
>
> from    Bob Peterson <rpeterso at redhat.com>
> to      linux clustering <linux-cluster at redhat.com>
> date    Thu, Aug 14, 2008 at 3:59 PM
> subject Re: [Linux-cluster] GFS vs. GFS2: system-config-cluster, locking
> ...
>
> FYI--For 5.x, the locking infrastructure was common between GFS
> and GFS2.  It has to do with the common lock harness "lock_dlm"
> that is an interface between both GFS and GFS2 into the "dlm" module.
> For 5.3, we're splitting the locking modules apart to get rid of
> that dependency.
>
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>
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