Enable Largefiles on a SC 3.0 filesystem

[Jude]

Hi

I'm having a bit of trouble figuring out how to enable largefiles on
an nfs filesystem that is managed my Veritas Volume Manager and
resourced by Sun Cluster 3.0.

I was thinking that it would be a matter of offlining the nfs resource
so it umounts then running fsadm -F vxfs -o largefiles /nfs. Then
onlining the resource again and it would pick up the changes. However,
I can't even manage to acheive step one, and I don't even know if this
is the right approach.

Anyway help would be fantastic

Thanks in advance

Jude

[slrn]

On 11 May 2004 09:23:29 -0700, Jude <jfarmer@channel4.co.uk> wrote:

>Hi
>
>I'm having a bit of trouble figuring out how to enable largefiles on
>an nfs filesystem that is managed my Veritas Volume Manager and
>resourced by Sun Cluster 3.0.
>
>I was thinking that it would be a matter of offlining the nfs resource
>so it umounts then running fsadm -F vxfs -o largefiles /nfs. Then
>onlining the resource again and it would pick up the changes. However,
>I can't even manage to acheive step one, and I don't even know if this
>is the right approach.
>
>Anyway help would be fantastic

Try running fuser to see if anyone is using the NFS, terminated it and
force a umount (umount -f) and see if this will help. In addition,
you can post to comp.unix.solaris to see if anyone there is more
familiar with Veritas.

--
slrn is a command line news reader.
please reply, to the newsgroup (s).

[Jude]

[email]slrn@rr.com[/email] (slrn) wrote in message news:<slrnca1vnt.25v.slrn@server01.rr.com>...

> On 11 May 2004 09:23:29 -0700, Jude <jfarmer@channel4.co.uk> wrote:

> >Hi
> >
> >I'm having a bit of trouble figuring out how to enable largefiles on
> >an nfs filesystem that is managed my Veritas Volume Manager and
> >resourced by Sun Cluster 3.0.
> >
> >I was thinking that it would be a matter of offlining the nfs resource
> >so it umounts then running fsadm -F vxfs -o largefiles /nfs. Then
> >onlining the resource again and it would pick up the changes. However,
> >I can't even manage to acheive step one, and I don't even know if this
> >is the right approach.
> >
> >Anyway help would be fantastic

>
> Try running fuser to see if anyone is using the NFS, terminated it and
> force a umount (umount -f) and see if this will help. In addition,
> you can post to comp.unix.solaris to see if anyone there is more
> familiar with Veritas.

Hi

fuser doesn't display any process id and a umount -f, quizically gives
this:

umount: You don't have a license to run this program

hmm. I think it must be a Sun cluster specific issue. I've posted this
to the Solaris group you suggested.

Thanks

Jude

[Doug Freyburger]

Jude wrote:

>
> I'm having a bit of trouble figuring out how to enable largefiles on
> an nfs filesystem

The largefiles switch only applies to local filesystems, so no matter
what you try it will have no effect on any NFS filesystem.

> that is managed my Veritas Volume Manager and
> resourced by Sun Cluster 3.0.

1) You need to do the fsadm on the host where the filesystem is local
and add it to the /etc/vfstab there as well. Plus if it is inherreted
on failover, make the change in the other /etc/vfstab as well.

2) For NFS, be sure you use version=3 to acheive the nearest
equivalent to largefiles. verion=2 only supports smaller file sizes.