Re: NFS and /dev/mdXpY

[Trond Myklebust <trond.myklebust-41N18TsMXrtuMpJDpNschA@public.gmane.org>]

On Thu, 2010-04-22 at 15:32 -0400, J. Bruce Fields wrote: 
> On Thu, Apr 22, 2010 at 10:53:10PM +0400, Vlad Glagolev wrote:
> > On Thu, 22 Apr 2010 14:25:43 -0400
> > "J. Bruce Fields" <bfields-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org> wrote:
> > 
> > > On Sat, Apr 17, 2010 at 07:57:47PM +0400, Vlad Glagolev wrote:
> > > > Well, hello there,
> > > > 
> > > > Posted it on linux-kernel ML also, and post it here, for more specific analysis.
> > > > 
> > > > I faced this problem today while trying to mount some NFS share on OpenBSD box.
> > > > I mounted it successfully without any visible errors, but I wasn't able to cd there, the printed error was:
> > > > 
> > > > ksh: cd: /storage - Stale NFS file handle
> > > > 
> > > > Apropos, the partition is 5.5 TB. I tried another one on my box and it was mounted successfully. It was possible to manage files there too. Its size is ~3GB.
> > > > That's why the first time I thought about some size limitations of OpenBSD/Linux/NFS.
> > > > 
> > > > While talking on #openbsd @ freenode, I discovered this via tcpdump on both sides:
> > > > 
> > > > http://pastebin.ca/1864713
> > > > 
> > > > Googling for 3 hours didn't help at all, some posts had similiar issue but either with no answer at all or without any full description.
> > > > 
> > > > Then I started to experiment with another Linux box to kill the possible different variants.
> > > > 
> > > > On another box I also have nfs-utils 1.1.6 and kernel 2.6.32. Mounting that big partition was unsuccessful, it got just stuck. On tcpdump I've seen this:
> > > 
> > > I'm a bit confused.  What kernel and nfs-utils version is running on the
> > > problematic Linux server?
> > 
> > same. nfs-utils 1.1.6 and kernel 2.6.32.
> 
> Huh.  That should be new enough for it to be using uuid's.  I wonder why
> it isn't?

What are the contents of /dev/disk/by-uuid?

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