[PVFS-users] Re: Newbie in PVFS. Unable to mount PVFS

[Don Porter]

Hey Aichee, let's keep this on the mailing list so that everyone can
benefit from this walk-through.

When you run 'configure' on the pvfs-kernel package, you can give it the
'--with-kpvfsd' option.  If you do this, the pvfs client daemon runs in
kernel space.  Otherwise, it runs in userspace.  The difference is this:
if it runs in kernel space, it will automatically start when you
modprobe or insmod pvfs.  If you are running the userspace daemon, you
will need to run the pvfsd command on the client because the kernel
cannot automatically start this.

Also, be sure to follow the step about 'mknod /dev/pvfsd...'.

Hope this helps,
Don

On Thu, 2004-10-28 at 01:28 +0000, Ai Chee Sin wrote:
> hi,
> 
> After i start the mgr, iod and pvfsd. I enter the following:
> [root at frontend-0 /root]# mgr-ping
> localhost:3000 is responding
> [root at frontend-0 /root]# iod-ping
> localhost:7000 is responding
> [root at frontend-0 /root]# pvfs-ping -h frontend-0 -f /pvfs-meta -p 3000
> mgr (frontend-0:3000) is responding.
> iod0 (10.1.1.1:7000) is responding.
> iod1 (10.255.255.254:7000) is responding.
> pvfs file system /pvfs-meta is fully operational.
> I think the mgr, iod and pvfsd is start up right?
> 
> What you mean by
> 'One thing to look at is whether or not you configured your kernel to use a 
> user-space or kernel space daemon.  If you chose to use the userspace 
> daemon, you will need to be certain that you correctly started this daemon 
> before mounting.'
> 
> Sorry i am a newbie to linux and pvfs. Could you provide me the solution 
> step by step, because i don't quite understand what to do.
> 
> Thanks for the replies.
> 
> Aichee
> Student from Nanyang Polytechnic, Singapore
> 
> >From: Don Porter <porterde at mercury.hendrix.edu>
> >To: Ai Chee Sin <purplrain85 at hotmail.com>
> >CC: pvfs-users at www.beowulf-underground.org, sinaichee at yahoo.com.sg
> >Subject: Re: Newbie in PVFS. Unable to mount PVFS
> >Date: Wed, 27 Oct 2004 06:36:29 -0500
> >
> >You can use the pvfs-ping tool to ensure that the servers are up and
> >running.  If they are not, then you need to address that.
> >
> >If they are, then your kernel somehow got in a bad state and you are
> >going to need to reboot the machine.  One thing to look at is whether or
> >not you configured your kernel to use a user-space or kernel space
> >daemon.  If you chose to use the userspace daemon, you will need to be
> >certain that you correctly started this daemon before mounting.
> >
> >Best,
> >Don
> >
> >On Wed, 2004-10-27 at 09:13 +0000, Ai Chee Sin wrote:
> > > hi,
> > >
> > > I had tried to install PVFS 1.6.3. I had followed the user guide online 
> >till
> > > step 5.2 Getting a client connected.
> > > When i entered [root at frontend-0/root]# mount.pvfs frontend-0:/pvfs-meta
> > > /mnt/pvfs, the system stopped there for a very long time. I pressed Ctrl 
> >C
> > > to stop the process, then entered [root at frontend-0/root]# mount.pvfs
> > > frontend-0:/pvfs-meta /mnt/pvfs again and it returned:
> > > mount.pvfs: Invalid argument
> > > mount.pvfs: server 10.1.1.1 alive, but mount failed (invalid metadata
> > > directory name?)
> > >
> > > So i entered another command, [root at frontend-0/root]# /sbin/mount.pvfs
> > > frontend-0:/pvfs-meta /mnt/pvfs again and it returned:
> > > mount.pvfs: server10.1.1.1 not responding, still trying
> > > mount.pvfs: server10.1.1.1 not responding, still trying
> > > mount.pvfs: server10.1.1.1 not responding, still trying
> > > mount.pvfs: server10.1.1.1:3000 not responding, giving up
> > >
> > > What had happend???
> > >
> > > aichee
> > > Student from Nanyang Polytechnic, Singapore
> > >
> > > _________________________________________________________________
> > > Take a break! Find destinations on MSN Travel. 
> >http://www.msn.com.sg/travel/
> > >
> 
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