toasters

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13520 discussions

nfsstat -l not in 8.1 ?
by Paul Letta 09 Feb '15

09 Feb '15

What happened to "nfsstat -l" on 8.1 ? I just tried to do this for the first time in a while.. "nfsstat -l" works fine on our 7.x and 8.2 filers.. Was it removed in 8.1..? I tried it with advanced commands turned on as well. I'm typing nfsstat dash ell... thanks, Paul xx> version NetApp Release 8.1.4P1 7-Mode: Tue Feb 11 23:23:31 PST 2014 xx> options nfs.per_client_stats.enable nfs.per_client_stats.enable on xx> nfsstat -l usage: nfsstat <interval> [ <count> ] usage: vfiler run <vfname> nfsstat -h [ -n [ <count> ] ] | [ [ <hostname or ip address> ] [ <interval> ] ] usage: vfiler run <vfname> nfsstat -l [ <count> ] usage: nfsstat -z usage: nfsstat -C usage: nfsstat [ -c ] [ -t ] xx> xx> priv set advanced Warning: These advanced commands are potentially dangerous; use them only when directed to do so by NetApp personnel. xx*> xx*> nfsstat -l usage: nfsstat <interval> [ <count> ] usage: vfiler run <vfname> nfsstat -h [ -n [ <count> ] ] | [ [ <hostname or ip address> ] [ <interval> ] ] usage: vfiler run <vfname> nfsstat -l [ <count> ] usage: nfsstat -z usage: nfsstat -C usage: nfsstat [ -c ] [ -t ]

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Re: IOPS Planning for the Deswizzle Process?
by Philbert Rupkins 05 Feb '15

05 Feb '15

Paul, Thanks for this tip. I cant find much about the wafl.deswizzle.enable option on the support site. I did find a document that says "This is a diagnostic mode option that should only be used as part of an action plan under NetApp Global Support supervision." I guess I'll be giving them a call. Did you find this option mentioned in another document somewhere? Quarterly, we refresh an environment on the remote side which involves promoting a (volume) snapmirror replica to a primary copy of the data. I just want to make sure I am not going to shoot myself in the foot (from a performance perspective) with this option when we break a snapmirror replica and use the destination as a primary copy. Thanks, Phil On Tue, Jan 27, 2015 at 2:04 PM, Peter-Paul Witta <paul.witta(a)cubit.at> wrote: > if you do not plan to use the destination regularily tun the deswziller > off. > otherwise you'd deswizzle lots of snapshots you'll never use active on the > destination anyway... > > greets, > paul > > > Am 27.01.15 um 20:55 schrieb Philbert Rupkins: > > Hello Toasters, > > We've unfortunately had to reduce the frequency of our volume snapmirror > updates in order to allow for our destination aggregate to deswizzle. We > highly prefer hourly volume snapmirror updates but it turns our our source > volumes are large enough and/or have enough snapshots that the deswizzle > process never completes on the destination aggregate. Our volume > snapmirror destination aggregate is a single tray of SATA. Prior to > reducing the frequency of snapmirror updates, the SATA aggregate was > running at 90-100% utilization 24x7 with little to no IO to the filer from > active clients. Needless to say, serving data from said aggregate was > VERY SLOW despite the light IO (<300 IOPS) required by the clients sourcing > their primary data from the SATA aggregate. > > > We've done what we can to reduce the impact of deswizzling. Namely, > cutting down on snapshots and reducing the volume size. I understand > reducing volume size doesnt reduce the maxfiles setting which believe > ultimately impact the amount of deswizzling necessary on the destination. > I'm still digging into other options we can try but reducing the frequency > of snapmirror updates seems to have the most impact. > > How does one plan for IOPs or disk utilization resulting from the > deswizzle process? If I recall correctly, during our planning sessions > with NetApp, our Netapp SE never touched on IOPs or number of spindles > required to handle deswizzling while serving data from the same aggregate. > In fact, I think our aggregates were size purely based on the amount of > IO generated from active clients (not active clients + deswizzle). > > Thanks, > Phil > > > _______________________________________________ > Toasters mailing listToasters@teaparty.nethttp://www.teaparty.net/mailman/listinfo/toasters > > > > -- > kind regards, +43-664-4542287 > Ing. Peter-Paul Witta +43-1-7189880-0 > CTO/techn. Geschaeftsleitung www.CUBiT.at > >

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snapshots schedules and snapmirror for DR
by Rhodes, Richard L. 05 Feb '15

05 Feb '15

Since our filers are used for a document management system, backups (snapshots/snapmirror) are controlled by a host script which coordinates CIFS shares and Oracle DB backups, and DR transfers. Now, I've setup a general CIFS share (ie: a junk drawer) which uses "snap sched" for hourly/daily/weekly snapshots and snapmirror.conf to schedule snapmirror to a DR site. Q) When the snapmirror is broken and the DR copy of the share is in use, will the snap sched kick in and start working automatically, or does something need done for the DR site for the snap sched to start working? Thanks Rick ----------------------------------------- The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message.

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RE: snapshots schedules and snapmirror for DR
by Schneider, Stefan 05 Feb '15

05 Feb '15

The snapshot schedule is part of the volume configuration so it will start working automatically on the DR site if the snapmirror is broken off. Regards, Stefan Von: toasters-bounces(a)teaparty.net<mailto:toasters-bounces@teaparty.net> [mailto:toasters-bounces@teaparty.net] Im Auftrag von Rhodes, Richard L. Gesendet: Donnerstag, 5. Februar 2015 15:15 An: toasters(a)teaparty.net<mailto:toasters@teaparty.net> Betreff: snapshots schedules and snapmirror for DR Since our filers are used for a document management system, backups (snapshots/snapmirror) are controlled by a host script which coordinates CIFS shares and Oracle DB backups, and DR transfers. Now, I’ve setup a general CIFS share (ie: a junk drawer) which uses “snap sched” for hourly/daily/weekly snapshots and snapmirror.conf to schedule snapmirror to a DR site. Q) When the snapmirror is broken and the DR copy of the share is in use, will the snap sched kick in and start working automatically, or does something need done for the DR site for the snap sched to start working? Thanks Rick ________________________________ ________________________________ The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message.

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RE: Mixing 10k and 15k in a DS4243
by RM 04 Feb '15

04 Feb '15

You’re right. CBC error. Computing Before Coffee. That said, is it generally kosher to mix speeds in any given shelf? RM From: Clark, André M. [mailto:Andre.Clark@redeight.com] Sent: Wednesday, February 4, 2015 11:34 To: RM; toasters(a)teaparty.net Subject: Re: Mixing 10k and 15k in a DS4243 DS424x only does 15K SAS, SSD and 7.2K SATA drives. The 10K drives are in the DS2246 shelf. From: RM Date: Wednesday, 04 February 2015 at 12:56 To: "toasters(a)teaparty.net<mailto:toasters@teaparty.net>" Subject: Mixing 10k and 15k in a DS4243 Is there a prohibition on mixing 10k and 15k SAS in the same shelf? NOT the same aggr, just the shelf. Thx, RM

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Mixing 10k and 15k in a DS4243
by RM 04 Feb '15

04 Feb '15

Is there a prohibition on mixing 10k and 15k SAS in the same shelf? NOT the same aggr, just the shelf. Thx, RM

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CIFS and nfs test data
by Klise, Steve 31 Jan '15

31 Jan '15

Is there an app that can generate test data such as excel word ppt ? I know I can use Linux DD for generating Mullins of files. Need to do a Ndmp test between vendors. Sent from my iPhone

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meta: yahoo/hotmail/aol list users and DMARC
by Tom Yates 31 Jan '15

31 Jan '15

**PLEASE DO NOT REPLY TO THE LIST ON THIS MATTER.** Following a query by an aol user who kept getting unsubscribed, I did some digging, and the list has a problem with respect to mail from yahoo/ hotmail/aol, and a few other smaller domains. As far as I can tell, as summarised at http://postmaster-blog.aol.com/2014/04/22/aol-mail-updates-dmarc-policy-to-… , a few fairly large email providers have unilaterally implemented a policy called DMARC, and are now rejecting inbound emails that don't meet the policy requirements. In brief, the requirements are based on the content of the From: (the Header-From, rather than the Envelope-From) header line, and basically amount to "no mail may be sent with a From: line that matches our domain, from outside our domain). Until recently, this meant that whenever a list user from an afflicted domain sent mail to the list, noone inside an afflicted domain would receive it, and a bouncee would be generated for each such user. Recently, list traffic went up enough that sufficient bounces were generated to unsubscribe everyone on the list who was subscribed from an afflicted domain (47 users, the vast majority from yahoo and hotmail). They can resubscribe, and some have, but they will still not see emails from users in DMARC'ed domains, and if the list has another busy period, they'll all be unsubscribed-by-bounce again. As far as I can tell, the only remedy is to reconfig the list so that the From: address is set to a generic address, probably toasters(a)teaparty.net, rather than the actual sender (as it is now). This will mean that misconfigured autoresponders will send to everyone on the list, rather than to the sender as they do now. Before you ask, no, I am not willing to set it my own address, and sort through all the bounces manually. I've polled the other lists I'm on, and most (90%) of them seem to be ignoring the problem. I think DMARC is a rather foolish attempt to make the contents of the From: header reliable (at least as regards domain name), and am therefore inclined to ignore it, and say to yahoo/AOL/hotmail users that they need to subscribe from a provider with a bit more clue. But as usual I will be guided by you lot in this. If anyone feels strongly that the list should be reconfigured as described above, please let me know in the next week or two. If you have strong feelings the other way, it would be useful for me to know that also. And if anyone knows more about this than I do, and is aware of errors in the above, I'd value an off-list email even more. -- Tom Yates - http://www.teaparty.net

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tool to generate cifs I/O load
by Rhodes, Richard L. 30 Jan '15

30 Jan '15

I'm looking for a tool to generate a load onto a CIFS share from a Windows server. I see lots of comments out on the internet with folks using IOMETER to do this, but when I downloaded it I found that it doesn't support network shares. Any suggestions for a Windows tool to generate I/O onto a share? Thanks! Rick ----------------------------------------- The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message.

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CDOT domain joining with a prestaged account?
by Basil 29 Jan '15

29 Jan '15

Installing my first CDOT machine, and when we got to the point of joining the first CIFS SVM to the domain, we hit a snag. It looks like ontap expects to be creating the machine account. In 7-mode, if it finds an account where it wanted to create one, it would ask if we wanted to reuse that. In CDOT, it just failed. I'm checking to make sure it's not something else like credentials or access, but has anyone else tried this? What should happen in CDOT when you join a domain where the computer account already exists? Basil

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