Thanks Justin. I did mention that in an earlier post (under the prior thread). But always good for the clarification.
Parallel NFS *only* works under Clustered ONTAP and that is what I was having issues with.... and fixed in 8.1.2
--tmac
*Tim McCarthy* *Principal Consultant*
Clustered ONTAP Clustered ONTAP NCDA ID: XK7R3GEKC1QQ2LVD RHCE5 805007643429572 NCSIE ID: C14QPHE21FR4YWD4 Expires: 08 November 2014 Expires w/release of RHEL7 Expires: 08 November 2014
On Mon, Dec 3, 2012 at 10:13 AM, Scott Eno s.eno@me.com wrote:
No, 7-Mode. But was curious what he had seen.
On Dec 3, 2012, at 10:12 AM, "Parisi, Justin" Justin.Parisi@netapp.com wrote:
Please keep in mind that TMac is referring to clustered ONTAP for his NFSv4 issues. Scott, are you running clustered ONTAP?****
If so, please open a case and have the clustered ONTAP team work with you.
*From:* toasters-bounces@teaparty.net [mailto:toasters- bounces@teaparty.net] *On Behalf Of *Scott Eno *Sent:* Monday, December 03, 2012 10:01 AM *To:* Mark Flint *Cc:* Toasters *Subject:* Re: nfsv4/parallel NFS bugs****
Sounds like what they are seeing. The mount is obviously gone as writes are going to local disk, but the OS seems to insist the mount is still there.****
That's as I understand it, anyway.****
On Dec 3, 2012, at 9:45 AM, Mark Flint mf1@sanger.ac.uk wrote:****
Just as an aside to the mount problem, are you having autofs issues underneath? i.e. the mount 'going away' **** but still being in the mtab?****
`Mark****
ext:6944****
On 3 Dec 2012, at 14:23, Scott Eno wrote:****
Are there any NetApp bug reports you can point me to?****
We aren't using any of the "higher brain functions" of NFSv4 like file ownership and kerberos. UNIX admins started using it to fix a problem they saw on a volume shared by, up to, 17 hosts. Under NFSv3, when one host would write a file to the volume, other hosts wouldn't see the file. This problem goes away with NFSv4 mounts. Other problems, however, are appearing. A host will lose a mount to the NetApp and start writing to local disk. The RHEL OS, however, is adamant that the mount is still there. Very strange.****
They are also seeing "Bad Sequence ID" errors in the RHEL logs, but both NetApp and Red Hat claim this issue was resolved in earlier versions of their respective OS's.****
Now I'm wondering if 8.1.2 contains enough fixes for NFSv4 to cover our issues as well.****
On Dec 3, 2012, at 9:13 AM, tmac tmacmd@gmail.com wrote:****
Should have mentioned the bugs that I have seen are fixed in 8.1.2****
In my environment....performance related bugs. I was fine with a couple dozen hosts...**** opening the floodgates to a couple hundred nfsv4 hosts broke.**** Had to revert to nfsv3 (not a big deal, just revert the autofs table I was using).****
--tmac****
*Tim McCarthy***** *Principal Consultant*****
****
Clustered ONTAP Clustered ONTAP**** NCDA ID: XK7R3GEKC1QQ2LVD RHCE5 805007643429572 NCSIE ID: C14QPHE21FR4YWD4****
Expires: 08 November 2014 Expires w/release of RHEL7 Expires: 08 November 2014****
On Mon, Dec 3, 2012 at 9:07 AM, Scott Eno s.eno@me.com wrote:**** Hi,****
Your mentioned in the cluster thread of NFSv4 bugs caught my eye. Can you elaborate on that? We are moving RHEL 6.x servers to NFSv4 and a few odd issues have popped up (Bad Sequence ID errors, losing mounts).****
Running 8.1.1P1 across the board.****
On Dec 2, 2012, at 8:57 PM, tmac tmacmd@gmail.com wrote:****
To the best if my knowledge, there is still no in place upgrade to clustered ontap. You must migrate to different heads.****
With that said, I have three different clusters... One large (4 fas 6280's) in my lab, one small(2 x fas 3240's) on my regular network and one more (2 x fas6080) used as backup or inter cluster snap mirror.****
Still 8.1.1p1d1****
All I can say right now is watch out for a few nfsv4/parallel NFS bugs. Other than that... It had been real nice.**** On Dec 2, 2012 7:57 PM, "Peter D. Gray" pdg@uow.edu.au wrote:**** Hi people,
I am contemplating going to cluster mode on our 3170A and was wondering what peoples experience has been?
Any problems or gotchas?
We are on 8.1.2.
Regards, pdg
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