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CDOT 8.2p5, NFS w/ Win2012 or Win 7?
by Michael Garrison 26 Mar '14

26 Mar '14

We recently migrated a bunch of NFS volumes from 7mode to a cdot system. The CDot cluster has only NFSv3 enabled. We have some Windows 7 and Windows 2012 machines that can no longer mount the NFS volumes. No matter how they try it, they receive the following error: C:\Windows\system32>mount -o nolock \\server\share Z: > Network Error - 53 > Type 'NET HELPMSG 53' for more information. Yet, the exact same mount parameters work fine on the 7mode share. They've rebooted, tried multiple computers, and it's consistent behavior. Is anyone else out there running CDot 8.2p5 and have any success with Win7 or Win2012 machines? Thanks, Mike Garrison University of Michigan

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auth_sys group limit override ?
by Mark Flint 26 Mar '14

26 Mar '14

Does anyone know how this translates into C-Mode world from 7-mode? Thanks, `Mark -- The Wellcome Trust Sanger Institute is operated by Genome Research Limited, a charity registered in England with number 1021457 and a company registered in England with number 2742969, whose registered office is 215 Euston Road, London, NW1 2BE.

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Re: NFS Datastore Disconnect
by Philbert Rupkins 18 Mar '14

18 Mar '14

Thanks for the response! Yes. We are running 10g. I know flow control is enabled on the 10g adapters on the NetApps. Not sure if it is enabled on the switches. I'll have to check with our networking team. Do you know if a pause frame would show up somewhere in the port statistics? The switches are Nexus 5K's. We have been examining TCP Window Sizes during packet traces but have not found anything interesting. Of course, whenever we run a packet capture the problem never occurs so TCP Window Sizes could still be an issue. On Tue, Mar 18, 2014 at 12:04 AM, Wilkinson, Brent < Brent.Wilkinson(a)netapp.com> wrote: > Are you running 10g? If so what are the flow control settings end to end? > > Sent from mobile device. > > On Mar 17, 2014, at 10:55 PM, "Philbert Rupkins" < > philbertrupkins(a)gmail.com> wrote: > > I'll also mention that I received a response from a gentleman at NetApp > who pointed out the following KB article the recommends reducing the NFS > Queue depth. > > > http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=di… > > We noticed this KB article but have yet to try it. We are considering > other options at the moment because the article says this issue is fixed in > the version of ONTAP (8.1.2P4) we are running. However, if nothing else > pans out, we will give it a shot. > > Another note - this is also a highly shared environment in which we > service FCP, CIFS and NFS clients from the same filers (and vfilers) we > service the NFS datastores from. We have yet to show evidence of high > utilization from the other clients on the same array contributing to the > problem but it is on the radar. > > Also worth noting, we are running VSC 4.2.1. It reports all of the ESX > hosts to be in compliance with the recommended settings. > > > > > On Mon, Mar 17, 2014 at 8:30 PM, Philbert Rupkins < > philbertrupkins(a)gmail.com> wrote: > >> Hello Toasters, >> >> Anybody have any issues with seemingly random ESXi 5.5 NFS datastore >> disconnects during heavy load? >> >> Our Environment: >> >> ESXi 5.5 >> F3240 ONTAP 8.1.2P4 >> >> It doesn't happen all the time. Only during heavy load but even then >> there is no guarantee that it will happen. We have yet to find a >> consistent trigger. >> >> Datastores are mounted via shortname. We are planning to mount via IP >> address to rule out any name resolution issues but that will take some >> time. DNS is generally solid so we are doubtful DNS has anything to do >> with it but we should align ourselves with best practices. >> >> We serve all of our NFS through vfilers. Some of our vfilers host 5 >> NFS datastores from a single IP address. I mention this because I have >> come across documentation recommending a 1:1 ratio of datastores to IP >> addresses. >> >> vmkernel.log just shows that the connection was lost to the NFS server. >> It recovers w/in 10 seconds. We have 11 nodes in this particular ESX >> cluster. >> >> Not all 11 ESXi nodes lose connectivity to the datastore at the same >> time. I've seen it affect just one ESXi node's connectivity to a single >> datastore. I've also seen it affect more than one ESXi node and multiple >> datastores on the same filer. >> >> Until recently, it was only observed during storage vmotions. We >> recently discovered it happening during vmotion activity managed by DRS >> after a node was brought out of maintenance mode. As I said before, it is >> generally a rare occurrence so it is difficult to trigger on our own. >> >> Thanks in advance for any insight/experiences. >> >> Phil >> >> >> > _______________________________________________ > Toasters mailing list > Toasters(a)teaparty.net > http://www.teaparty.net/mailman/listinfo/toasters > >

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NFS Datastore Disconnect
by Philbert Rupkins 18 Mar '14

18 Mar '14

Hello Toasters, Anybody have any issues with seemingly random ESXi 5.5 NFS datastore disconnects during heavy load? Our Environment: ESXi 5.5 F3240 ONTAP 8.1.2P4 It doesn't happen all the time. Only during heavy load but even then there is no guarantee that it will happen. We have yet to find a consistent trigger. Datastores are mounted via shortname. We are planning to mount via IP address to rule out any name resolution issues but that will take some time. DNS is generally solid so we are doubtful DNS has anything to do with it but we should align ourselves with best practices. We serve all of our NFS through vfilers. Some of our vfilers host 5 NFS datastores from a single IP address. I mention this because I have come across documentation recommending a 1:1 ratio of datastores to IP addresses. vmkernel.log just shows that the connection was lost to the NFS server. It recovers w/in 10 seconds. We have 11 nodes in this particular ESX cluster. Not all 11 ESXi nodes lose connectivity to the datastore at the same time. I've seen it affect just one ESXi node's connectivity to a single datastore. I've also seen it affect more than one ESXi node and multiple datastores on the same filer. Until recently, it was only observed during storage vmotions. We recently discovered it happening during vmotion activity managed by DRS after a node was brought out of maintenance mode. As I said before, it is generally a rare occurrence so it is difficult to trigger on our own. Thanks in advance for any insight/experiences. Phil

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7-mode console unresponsive
by Mark Flint 13 Mar '14

13 Mar '14

Hi all, I have a 7.3.3 3170 HA pair, out of maintenance now, that’s become unresponsive to the console. It accepts the login/passwd and then nothing. No prompt, although it does appear to be echoing the log as it happens. Unit is experiencing high load, and I can’t get into it to find out why. Has anyone seen this before, and what was the fix fior it, if any? I know i can fail it over and reboot it, but I’d rather know what and why before I do so, as my mgmt team will want some form of answer that isn’t ‘meh’ with a shrug :( Thanks, Mark Flint mf1(a)sanger.ac.uk -- The Wellcome Trust Sanger Institute is operated by Genome Research Limited, a charity registered in England with number 1021457 and a company registered in England with number 2742969, whose registered office is 215 Euston Road, London, NW1 2BE.

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Snapmanager Exchange - Archived Backups with OnCommand (DFM)
by Roth, Jürgen 12 Mar '14

12 Mar '14

Hello, my Name is Juergen Roth and I´m a Systemadministrator for Windows Server and Netapp Filers. We have two FAS3040 as a HA-Cluster. On the „primary“ we have a qtree with a Exchange LUN. This LUN is a RDM for the one Exchange Server. We use Snapmanager Exchange for Backup the Public Folder and Mailbox Database (only one Databse). We take the OnCommand Server for a Data Protection Job and archive the Snapshots from the „primary“ to the „secondary“ filer in a extra volume only for the Data Protection Job. Another Server hast he Snapmanager Exchange with SingleMailboxRecovery (SMBR) for doing restores. On all Servers we have the same Versions of SnapDrive and Snapmanager Exchnage. Now the Problem: The Snapshot Backups on the „primary“ filer can directly opened with SMBR. The archived Backups On the „secondary“ filer can not opened directly. Following error message comes: [cid:image001.png@01CF379C.6B1DBA90] We can manual mount the Snapshot in SnapDrive and then we can starting SMBR for using this Mount. But thats not the way, because our IT Service should do restores. Mit freundlichen Grüßen Jürgen Roth -- Jürgen Roth Deutsche Nationalbibliothek Informationstechnik Adickesallee 1 D-60322 Frankfurt am Main Telefon: +49-69-1525-1764 Telefax: +49-69-1525-1799 j.roth(a)dnb.de http://www.dnb.de<http://www.dnb.de/>

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Snammirror question
by Iluhes 11 Mar '14

11 Mar '14

Can I snapmirror between the following source and destination Source: 7.3.5.1P3 Destination: 8.2P3 From 32-bit volume into 64-bit qtree?

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Flash Pools, without the Flash?
by John Stoffel 11 Mar '14

11 Mar '14

So I got a price quote on Netapp's Flash drives that you stick into a Flash Pool and having my eyebrows rise off my forehead. Of course Netapp's prices are/were no worse than EMC's prices for single SSD drives, etc. Basically crazy expensive in both cases. Now I'm entertaining the silly idea of just using a mix of SAS and SATA drives in a flash pool instead. Get *some* of the advantages, but lots cheaper pricing. Esp using those big fat slow 4Tb drives in the dual drive sleds. Front them with a bunch of SAS disks and it should do quite nicely. God knows there shouldn't be any technical reason this can't work, it's just a matter of moving blocks from one raidgroup in an aggregate to another. But the Netapp technical sales guy was surprised by the suggestion. I'm loving the transition of SSDs into the enterprise space, because it's forcing all kinds of changes on the vendors that are long overdue. Just putting a pair of mirrored SSDs into a server is a big boost. Using it to cache is good too. What do others think? John

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EMC Documentum
by Milazzo Giacomo 10 Mar '14

10 Mar '14

Hi all, strange request maybe. What could convince a customer to migrate Documentum data from an old Centera to a NetApp FAS? And this knowing that Centera has ad added value... Regards, Giacomo Milazzo Sinergy SpA Rome, Italy

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RE: Flash Cache
by Aaron Lewis 10 Mar '14

10 Mar '14

Sorry, I just realized I wasn’t specific enough (not enough coffee yet this morning). I’m specifically thinking about the 3220 and 3250. You can’t use the cards that worked in the 3210 and 3240 in them. Thanks, Aaron From: Isidro Obra [mailto:cruxrealm@aol.com] Sent: Monday, March 10, 2014 8:47 AM To: Aaron Lewis Cc: toasters(a)teaparty.net Subject: Re: Flash Cache it depends on the OS and the model I believe it is still supported. check hardware universe. -Sid- On Mar 10, 2014, at 8:39 AM, "Aaron Lewis" <aaron(a)ivoxy.com<mailto:aaron@ivoxy.com>> wrote: Hi All, Can someone explain why older Flash Cache cards (i.e. X1937A-R5) are no longer supported in the 32xx systems? What has changed between them? I’ve looked a bunch and been unable to find an answer. Thanks in advance! Regards, Aaron Lewis _______________________________________________ Toasters mailing list Toasters(a)teaparty.net<mailto:Toasters@teaparty.net> http://www.teaparty.net/mailman/listinfo/toasters

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