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List:       opensolaris-nfs-discuss
Subject:    [nfs-discuss] NFS4 client problem after lost NFS connection
From:       Thomas.Haynes () Sun ! COM (Thomas Haynes)
Date:       2006-03-22 9:16:38
Message-ID: 44218673.9050300 () Sun ! COM
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Shannon Sylvia wrote On 03/22/06 08:53,:
> Hello,
> 
> A connection from an NFS EMC server was broken, after reconnecting all of my other \
> servers reconnected (Solaris 8, 9).  I only have this issue with Solaris 10 (NFS4). \
> I had to force unmount the mounted NFS filesystem, and now I am unable to mount the \
> filesystem again: 
> root@servera # df
> / (/dev/md/dsk/d0 ):11875192 blocks 1116355 files
> /devices (/devices ): 0 blocks 0 files
> /system/contract (ctfs ): 0 blocks 2147483609 files
> /proc (proc ): 0 blocks 29946 files
> /etc/mnttab (mnttab ): 0 blocks 0 files
> /etc/svc/volatile (swap ):10282896 blocks 595017 files
> /system/object (objfs ): 0 blocks 2147483453 files
> /dev/fd (fd ): 0 blocks 0 files
> /var (/dev/dsk/c0t0d0s5 ): 9517004 blocks 667253 files
> /tmp (swap ):10282896 blocks 595017 files
> /var/run (swap ):10282896 blocks 595017 files
> /space (/dev/dsk/c0t0d0s7 ):102746556 blocks 6178428 files
> root@servera # mount serverb.com:/serverb/softsrc /usr/local/soft
> 
> (*** it hangs, so I have to break out of this command ***)
> 
> ^Croot@servera # df
> / (/dev/md/dsk/d0 ):11875192 blocks 1116355 files
> /devices (/devices ): 0 blocks 0 files
> /system/contract (ctfs ): 0 blocks 2147483609 files
> /proc (proc ): 0 blocks 29946 files
> /etc/mnttab (mnttab ): 0 blocks 0 files
> /etc/svc/volatile (swap ):10282848 blocks 595017 files
> /system/object (objfs ): 0 blocks 2147483453 files
> /dev/fd (fd ): 0 blocks 0 files
> /var (/dev/dsk/c0t0d0s5 ): 9517004 blocks 667253 files
> /tmp (swap ):10282848 blocks 595017 files
> /var/run (swap ):10282848 blocks 595017 files
> /space (/dev/dsk/c0t0d0s7 ):102746556 blocks 6178428 files
> 
> Output from the logs:
> 
> pg network-nfs-status:default.log
> 
> [ Mar 20 10:33:34 Rereading configuration. ]
> [ Mar 20 10:33:34 No 'refresh' method defined. Treating as :true. ]
> [ Mar 20 10:34:09 Rereading configuration. ]
> [ Mar 20 10:34:09 No 'refresh' method defined. Treating as :true. ]
> 
> pg network-nfs-nlockmgr:default.log
> 
> 
> [ Mar 20 10:33:34 Rereading configuration. ]
> [ Mar 20 10:33:34 No 'refresh' method defined. Treating as :true. ]
> [ Mar 20 10:34:09 Rereading configuration. ]
> [ Mar 20 10:34:09 No 'refresh' method defined. Treating as :true. ]
> 
> I tried using clear_locks:
> 
> root@servera # clear_locks -s serverb
> Clearing locks held for NFS client eutheria on server serverb
> clear of locks held for servera on serverb returned success
> 
> I am still not able to mount.
> 
> I know this problem will clear up if I reboot the server, but I am no able to \
> reboot the server. 
> Thanks very much for any insight that you may have.
> This message posted from opensolaris.org
> _______________________________________________
> nfs-discuss mailing list
> nfs-discuss@opensolaris.org

Shannon,

You use the term server to mean both client and server. So, by reboot
the server, do you mean the Solaris 10 box or that EMC box?

Also, to help us help you, perhaps you could get a packet trace
of the mount request?

> From the Solaris 10 box:

# snoop -x0,2000 -o /tmp/s2e.snoop servera serverb

And then mail us /tmp/s2e.snoop.

You might also get a NFSv3 trace of the mount with:

# mount -o vers=3 serverb.com:/serverb/softsrc /usr/local/soft

Thanks,
Tom

-- 
Tom Haynes
tdh@sun.com


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