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13532 discussions

ONTAP compatibility with Windows 2019 domains
by Filip Sneppe 24 Apr '19

24 Apr '19

Hi, A customer of ours is planning to upgrade his Active Directory to Windows 2019, and is asking what the minimum required ONTAP version is with support for 2019 domains. >From the IMT I get that only ONTAP 9.4 and 9.5 are (officially) supported, but this seems a bit drastic: just doing a bit of research on new AD features in Windows 2019 shows that there no real changes to the domain and forrest functional levels, and that they are functionally equivalent to 2016 domains. Can anyone provide a little more insight or thoughts on this? Thanks in advance! Filip

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XDP transfer already existing snapshots
by Alexander Griesser 22 Apr '19

22 Apr '19

Hi toasters, I've setup an XDP snapmirror relation on one of our customer systems yesterday with the default MirrorAndVault policy (which includes daily and weekly snapmirror labels). After the baseline transfer, I recognized that no daily and weekly snapshots have been transferred to the destination and after deeper investigation I found out that the customer did set up a custom snapshot policy which was missing the snapmirror labels: Custom-policy 3 true - Schedule Count Prefix SnapMirror Label ---------------------- ----- ---------------------- ------------------- daily 7 daily - weekly 4 weekly - I've now modifed the policy (for all future snapshots) and did also modify all existing snapshots to add the labels: snap modify -vserver vserver -snapshot weekly.* -snapmirror-label weekly -volume * snap modify -vserver vserver -snapshot daily.* -snapmirror-label daily -volume * All snapshots do now show the correct snapmirror label, so I ran `snapmirror update` on the destination, but the old snapshots have not been transferred, which is most likely because they've been created "before" the XDP snapshot on the source volume. Newly created snapshots though, the one which got created overnight now with the new sm "daily" prefix, got transferred with the most recent update. What are my options now to also bring all the old snapshots to the destination? Do I need to reinitialize the relation? Thanks, Alexander Griesser Head of Systems Operations ANEXIA Internetdienstleistungs GmbH E-Mail: AGriesser(a)anexia-it.com<mailto:AGriesser@anexia-it.com> Web: http://www.anexia-it.com<http://www.anexia-it.com/> Anschrift Hauptsitz Klagenfurt: Feldkirchnerstraße 140, 9020 Klagenfurt Geschäftsführer: Alexander Windbichler Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT U63216601

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SAS Connectivity Monitor: DualPathToDiskShelf_Alert
by John Stoffel 17 Apr '19

17 Apr '19

Hi guys, My out of support FAS3120 running 8.1.2 7-Mode has suddenly had two instances of the following message sent via autosupport notifications. SAS Connectivity Monitor: DualPathToDiskShelf_Alert[50:05:0c:c1:02:04:db:ad] on mafs1a at Mon Apr 15 20:04:00 PDT 2019 But I'm not seeing anything in the event or alert logs, nor do I see any problems via sysconfig, storage shelf show, etc. I know the cables haven't been touched since I was just at the site this past weekend and the rack doors are closed and locked. Thanks, John P.S. And yes, this sucker should have been upgraded two years ago, but management won't let us...

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dedup and svm dr with xdp
by Peter D. Gray 17 Apr '19

17 Apr '19

I hope I can explain this clearly. We use svm dr for all our backups using XDP (identity preserve). We have many volumes with dedup enabled (not inline). We have many volumes with dedup not enabled. SVMs have volumes with dedup and no dedup. What is supposed to happen on the destination SVM's? It appears that it is running dedup as well even though I cannot figure out what schedule it is using. Some volumes appear to have the same schedule as the source (auto@10). Other volumes appear to have no schedule at all. You cannot disable dedup on a destination volume while the destination svm is a target. You can after you break the snapmirror relationship. But when you resync, it turns it back on I think. My understanding is that XDP preserves deduplication across the mirror, so no dedup should be required or do anything useful on the target but how to stop it? Any ideas on how this is supposed to work or what I am doing wrong? Regards, pdg

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SnapVault and Exchange logs
by SE 16 Apr '19

16 Apr '19

Hi, Is anyone on this list vaulting backups of Exchange? If so, have you found a way to *NOT* SnapVault the logs from Exchange? Our Exchange admins don't want the logs archived as they do restores via SMBR and have dozens of replicas, so they aren't concerned that they'll ever have to replay log files to do a restore from months ago. They do, however, want a year's worth of mailboxes. I know there's a way to force SME not to vault logs, but doing so makes validation of mail DB's mandatory. Our DB's are TB's large and the validations of all the DB's we vault would probably take a week each time. Meanwhile, the exchange log vaults are chewing through aggr space at alarming rates. Does anyone know of a way to vault the Exchange DB's w/o vaulting the logs and forcing validation of the DB's? - Scott

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Re: XDP v DP mirrors
by John Clear 11 Apr '19

11 Apr '19

On Thu, Apr 11, 2019 at 01:56:05PM +0100, S. Eno via Toasters wrote: > > Has anyone seen benefits to using XDP mirrors? Faster? Slower? > Better or worse network compression? We've converted all our snapmirrors to XDP. It is slighltly slower but the benefit of not having to worry about source/destination versions is worth it for us since we have a bunch of clusters cross mirroring different volumes and with DP we had to upgrade a dozen clusters at the same in order to not break snapmirror. John

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XDP v DP mirrors
by S. Eno 11 Apr '19

11 Apr '19

I realize this may be an over discussed topic, but I’m in the process of migrating a bunch of snapmirror relationships and am wondering about real-world impressions / results from anyone on whether it’s better to stay with the “old” snapmirror technology DP, or convert these mirrors to XDP. We’ve just upgraded to 9.3P11 and I already see that “DP” mirrors have been deprecated and have to be re-enabled via CLI. That seems to be a clear message from NetApp on where DP snapmirror is going. Has anyone seen benefits to using XDP mirrors? Faster? Slower? Better or worse network compression? Thanks! Scott

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Re: Continuously available CIFS
by SE 28 Mar '19

28 Mar '19

Thank you Justin for your response. Since this is a four-node cluster, if I force this application’s CIFS traffic through a lif on HA-pair “A” to a volume on an aggr owned by a controller in HA-pair “B” would those sessions still be severed if I upgrade HA-pair “B”? Would “B”s takeover/giveback process of changing aggr ownership also require severing CIFS sessions? > On Mar 13, 2019, at 8:50 AM, Parisi, Justin <Justin.Parisi(a)netapp.com> wrote: > > Microsoft and NetApp stance is that CA shares are supported only for HyperV and SQL workloads at this time. > > -----Original Message----- > From: toasters-bounces(a)teaparty.net <toasters-bounces(a)teaparty.net> On Behalf Of s.eno via Toasters > Sent: Wednesday, March 13, 2019 8:39 AM > To: toasters(a)teaparty.net > Subject: > > NetApp Security WARNING: This is an external email. Do not click links or open attachments unless you recognize the sender and know the content is safe. > > > > > _______________________________________________ > Toasters mailing list > Toasters(a)teaparty.net > http://www.teaparty.net/mailman/listinfo/toasters On Mar 13, 2019, at 8:39 AM, s.eno <s.eno(a)me.com> wrote: Hi, Does anyone here utilize continuously available CIFS shares for anything other than Hyper-V and/or SQL? If so, do you have real-world results on how those shares do during ONTAP upgrades? I need to perform upgrades on a 4-node cluster and have a mission critical application that doesn’t like it when the takeover/giveback process severs its CIFS sessions. I’m trying to figure out a way to do this without causing downtime to the application which in-turn causes push-back on the upgrade plan. The application appears to be connecting to the shares via SMB3_1, so it should support CA, right? I’ve tested checking the CA box on one of its shares and the app drains connections to the share and stops sending any more traffic, so it appears to not like something related to that change. One of its shares, however, was provisioned with that box checked and that one works just fine as far as traffic & sessions go. -- Scott s.eno(a)me.com

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FAS2240-4 and 9.1 support
by Alexander Griesser 28 Mar '19

28 Mar '19

Hey there, trying to repurpose some of my older filers here and wiped them now and wanted to install with 9.1. According to HWU, this should be supported and I'm running a few FAS2240-2 with 9.1PX already, without issues. I did upgrade to 9.1P17 on two of these FAS2240-4 and after the install, one of them did not boot anymore because it said, that this platform is not supported on the release. The second controller booted without issues and I have now netbooted 9.1P16, which shows the same behaviour: Controller A: Starting program at 0x80294e10 NetApp Data ONTAP 9.1P16 *************************************************** This platform is not supported in this release. The system will now halt *************************************************** Controller B: Starting program at 0x80294e10 NetApp Data ONTAP 9.1P16 md0: Preloaded image <http/_NETAPP/NETBOOT/91P16/rootfs.img> 256704512 bytes at 0xffffffff81543000 md1: Preloaded image <http/_NETAPP/NETBOOT/91P16/platfs2g.img> 335412736 bytes at 0xffffffff90a13000 Trying to mount root from ufs:/dev/md0.uzip [ro]... Copyright (C) 1992-2018 NetApp. All rights reserved. ******************************* * * * Press Ctrl-C for Boot Menu. * * * ******************************* Error: km_cdb_loader: couldn't open dump file CDB.mgwd Error opening /var/CDB.mgwd file. Firewall rules loaded. The Boot Menu will be presented because an alternate boot method was specified. Please choose one of the following: (1) Normal Boot. [...] Any ideas why Controller A thinks it does not support what Controller B does? Best, Alexander Griesser Head of Systems Operations ANEXIA Internetdienstleistungs GmbH E-Mail: AGriesser(a)anexia-it.com<mailto:AGriesser@anexia-it.com> Web: http://www.anexia-it.com<http://www.anexia-it.com/> Anschrift Hauptsitz Klagenfurt: Feldkirchnerstraße 140, 9020 Klagenfurt Geschäftsführer: Alexander Windbichler Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT U63216601

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Continuously available CIFS
by s.eno 13 Mar '19

13 Mar '19

Hi, Does anyone here utilize continuously available CIFS shares for anything other than Hyper-V and/or SQL? If so, do you have real-world results on how those shares do during ONTAP upgrades? I need to perform upgrades on a 4-node cluster and have a mission critical application that doesn’t like it when the takeover/giveback process severs its CIFS sessions. I’m trying to figure out a way to do this without causing downtime to the application which in-turn causes push-back on the upgrade plan. The application appears to be connecting to the shares via SMB3_1, so it should support CA, right? I’ve tested checking the CA box on one of its shares and the app drains connections to the share and stops sending any more traffic, so it appears to not like something related to that change. One of its shares, however, was provisioned with that box checked and that one works just fine as far as traffic & sessions go. -- Scott s.eno(a)me.com

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