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13515 discussions

/home layout with many filers and NIS automount
by Rainchik, Aleksandr (MED, Non GE) 13 Jan '01

13 Jan '01

Hello, I just need a word of advice on how to structure /home if you use automount, have 5-10 home directory servers (NetApp filers) and around 1000 users. I'm personally is looking for /home/homeserver-vol#/user-name scheme, so my automount maps will be nice, small and manageble: #auto_home NIS map filer1-0 filer1:/vol/vol0 filer1-1 filer1:/vol/vol1 ... filer5-5 filer5:/vol/vol5 But it seems like users prefer /home/username scheme and it leads to 1000+ NIS automount map for /home, like #auto_home NIS map user1 filer2:/vol/vol1/& .... user9999 filer3:/vol/vol4/& Do you know if there is more elegant solution for this problem? Can you tell me, what is your preference for /home layout? Thank you. -- Aleksandr Rainchik, SUN CSA

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RE: F7XX systems; 18gb and 36gb disks/shelves
by Conley, Mark 12 Jan '01

12 Jan '01

FYI on the used equipment, none of the software licenses on Netapp equipment are transferable. Which means you are paying for hardware only! Mark Conley -----Original Message----- From: ScottUCE(a)aol.com [mailto:ScottUCE@aol.com] Sent: Friday, January 12, 2001 3:09 PM To: toasters(a)mathworks.com Subject: FS: F7XX systems; 18gb and 36gb disks/shelves Available NetApp equipment includes: F720 F740s - Qty 8 F760s - Qty 4 18gb disk shelves/drives 36gb disk shelves/drives Spares kits Lots of older NetApp stuff -- systems, add-ons and parts We'd be delighted to hear from you should you have any interest. Scott Fischmann Union Computer Exchange, Inc. 6233 Idylwood Lane Minneapolis, MN 55436 Phone: 952 935 7282 www.unioncomputer.com

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FS: F7XX systems; 18gb and 36gb disks/shelves
by ScottUCE＠aol.com 12 Jan '01

12 Jan '01

Available NetApp equipment includes: F720 F740s - Qty 8 F760s - Qty 4 18gb disk shelves/drives 36gb disk shelves/drives Spares kits Lots of older NetApp stuff -- systems, add-ons and parts We'd be delighted to hear from you should you have any interest. Scott Fischmann Union Computer Exchange, Inc. 6233 Idylwood Lane Minneapolis, MN 55436 Phone: 952 935 7282 www.unioncomputer.com

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RE: backup for f760
by Davis, John 12 Jan '01

12 Jan '01

You should definitely add the BakBone backup s/w (ndmp version) to your short list..I just installed and set it up today pointing at a SL Bullfrog 10K..got about 10mb/sec (ave) backing up an Oracle database..very easy to install and much easier to learn to use.. -----Original Message----- From: Jeff Bryer [mailto:bryer@sfu.ca] Sent: Friday, January 12, 2001 2:37 PM To: nlehrer(a)ibb.gov Cc: toasters(a)mathworks.com; ch(a)ibb.gov Subject: Re: backup for f760 We've recently purchased an AIT-2 library (Spectralogic Gator 64000) which we are still testing out and evaluating software on before putting into production. We have some DLT-7000 drives around the place, and have been replacing them fairly regularly due to problems that we chose not to purchase another DLT-7000 based library. Based on feedback from this list, we're not even considering Legato's Networker (for it's poor quality in NDMP support). We've been focusing on Syncsort Backup Express, Quadratec Time Navigator and Veritas NetBackup Data Center. > i need to backup our f760, currently about 200GB. i will be testing legato > networker [we already use it] with ndmp and need to decide on a tape system. i > am open to either dlt7000 or ait-2 based stacker solutions. what are people > happy with? > -- Jeff Bryer bryer(a)sfu.ca Systems Administrator (604) 291-4935 Academic Computing, Simon Fraser University

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backup for f760
by neil lehrer 12 Jan '01

12 Jan '01

hi, i need to backup our f760, currently about 200GB. i will be testing legato networker [we already use it] with ndmp and need to decide on a tape system. i am open to either dlt7000 or ait-2 based stacker solutions. what are people happy with? thanks

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Re: /home layout with many filers and NIS automount
by Paul Wiltsey 12 Jan '01

12 Jan '01

Large maps are not that bad to manage... I vote for: user1 filer2:/vol/vol1/& .... user9999 filer3:/vol/vol4/& That is how we do it anyway. ----- Original Message ----- From: "Rainchik, Aleksandr (MED, Non GE)" <Aleksandr.Rainchik(a)med.ge.com> Date: Friday, January 12, 2001 11:47 am Subject: /home layout with many filers and NIS automount > Hello, > > I just need a word of advice on how to structure /home if you > use automount, have 5-10 home directory servers (NetApp filers) > and around 1000 users. > > I'm personally is looking for /home/homeserver-vol#/user-name > scheme, so my automount maps will be nice, small and manageble: > > #auto_home NIS map > filer1-0 filer1:/vol/vol0 > filer1-1 filer1:/vol/vol1 > ... > filer5-5 filer5:/vol/vol5 > > > But it seems like users prefer /home/username scheme and it leads > to 1000+ NIS automount map for /home, like > > #auto_home NIS map > user1 filer2:/vol/vol1/& > .... > user9999 filer3:/vol/vol4/& > > Do you know if there is more elegant solution for this problem? Can > youtell me, what is your preference for /home layout? > > Thank you. > > -- Aleksandr Rainchik, SUN CSA > >

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RE: performance problem on a 740
by Knight, Jason 12 Jan '01

12 Jan '01

Are you using SnapMirror on these F740's? -----Original Message----- From: Bertrand HUTIN [mailto:bertrand_hutin@amdahl.com] Sent: Friday, January 12, 2001 9:32 AM To: toasters(a)mathworks.com; vitar_dalloken(a)amdahl.com Subject: performance problem on a 740 On one of my customer's 740 filer, the average load is 72% and reached 100%, with OPS around 200 to 400. On another one with about the same OPS, the average load is 42%. Net and disk input/output is almost the same on both filers. what could be wrong?

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RE: Can volumes span FCAL controllers?
by Mankovsky, Mike 12 Jan '01

12 Jan '01

My apologies for this response. It was intended for a different mail thread. Mike -----Original Message----- From: Mankovsky, Mike [mailto:mike.mankovsky@netapp.com] Sent: Friday, January 12, 2001 8:06 AM To: 'Chris Thompson'; scl(a)sasha.acc.virginia.edu Cc: sirbruce(a)ix.netcom.com; jason.santos(a)onsemi.com; mphelps(a)cfa.harvard.edu; toasters(a)mathworks.com Subject: RE: Can volumes span FCAL controllers? I don't see the reason to get Jess involved at this point. Mike -----Original Message----- From: Chris Thompson [mailto:cet1@cus.cam.ac.uk] Sent: Friday, January 12, 2001 7:45 AM To: scl(a)sasha.acc.virginia.edu Cc: sirbruce(a)ix.netcom.com; jason.santos(a)onsemi.com; mphelps(a)cfa.harvard.edu; toasters(a)mathworks.com Subject: Re: Can volumes span FCAL controllers? Steve Losen <scl(a)sasha.acc.virginia.edu> wrote: > [in response to Bruce Sterling Woodcock <sirbruce(a)ix.netcom.com>] > > > > > That's not entirely true -- you can span a volume across controllers, > > > just dont span RAID groups across controllers. > > > > When a volume has 2 RAID groups, is the NVRAM split among > > RAID groups? How are CPs done? > [ Good introduction to consistency points for newbies ] > > So in answer to your question, the NVRAM is shared by all volumes > and raid groups because it is a log of incoming write requests, > not a disk buffer cache. But to resume the original thread, the question is whether or not the writes done as part of CPs are clustered in a way that helps to reduce the overheads of switching between FCAL controllers. CPs for different volumes are logically distinct operations, but are in practice synchronised, either by the 10-second clock or by NVRAM filling up. In saying that one should avoid spreading a volume over multiple controllers, but can have different volumes on different controllers, the assumption is that writes (mostly) occur first to one volume, then to another. If the same is to apply to RAID groups, then the assumption is that the writes associated with taking a CP on a single volume are (mostly) clustered by RAID group. This sounds entirely reasonable, given that the filer tries to write whole stripes, or at least stripes in which as many planes as possible are being updated. Chris Thompson University of Cambridge Computing Service, Email: cet1(a)ucs.cam.ac.uk New Museums Site, Cambridge CB2 3QG, Phone: +44 1223 334715 United Kingdom.

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RE: Can volumes span FCAL controllers?
by Mankovsky, Mike 12 Jan '01

12 Jan '01

I don't see the reason to get Jess involved at this point. Mike -----Original Message----- From: Chris Thompson [mailto:cet1@cus.cam.ac.uk] Sent: Friday, January 12, 2001 7:45 AM To: scl(a)sasha.acc.virginia.edu Cc: sirbruce(a)ix.netcom.com; jason.santos(a)onsemi.com; mphelps(a)cfa.harvard.edu; toasters(a)mathworks.com Subject: Re: Can volumes span FCAL controllers? Steve Losen <scl(a)sasha.acc.virginia.edu> wrote: > [in response to Bruce Sterling Woodcock <sirbruce(a)ix.netcom.com>] > > > > > That's not entirely true -- you can span a volume across controllers, > > > just dont span RAID groups across controllers. > > > > When a volume has 2 RAID groups, is the NVRAM split among > > RAID groups? How are CPs done? > [ Good introduction to consistency points for newbies ] > > So in answer to your question, the NVRAM is shared by all volumes > and raid groups because it is a log of incoming write requests, > not a disk buffer cache. But to resume the original thread, the question is whether or not the writes done as part of CPs are clustered in a way that helps to reduce the overheads of switching between FCAL controllers. CPs for different volumes are logically distinct operations, but are in practice synchronised, either by the 10-second clock or by NVRAM filling up. In saying that one should avoid spreading a volume over multiple controllers, but can have different volumes on different controllers, the assumption is that writes (mostly) occur first to one volume, then to another. If the same is to apply to RAID groups, then the assumption is that the writes associated with taking a CP on a single volume are (mostly) clustered by RAID group. This sounds entirely reasonable, given that the filer tries to write whole stripes, or at least stripes in which as many planes as possible are being updated. Chris Thompson University of Cambridge Computing Service, Email: cet1(a)ucs.cam.ac.uk New Museums Site, Cambridge CB2 3QG, Phone: +44 1223 334715 United Kingdom.

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performance problem on a 740
by Bertrand HUTIN 12 Jan '01

12 Jan '01

On one of my customer's 740 filer, the average load is 72% and reached 100%, with OPS around 200 to 400. On another one with about the same OPS, the average load is 42%. Net and disk input/output is almost the same on both filers. what could be wrong?

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RE: Can volumes span FCAL controllers?
by Knight, Jason 12 Jan '01

12 Jan '01

What happens in a volume that is spanned across two controllers when one controller fails? Does that appear as a double disk failure (assuming more than one disk is on the other controller)? Jason Knight

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RE: performance problem on a 740
by Bond, Andrew 12 Jan '01

12 Jan '01

There may be nothing wrong, perhaps they just need a faster filer. If the applications are doing different things then the load on the filer will vary. You cannot use OPS as a guide unless you know exactly what the ops are. You should open a call with NetApp support to make sure though. Regards, Andrew Bond Network Appliance UK Consulting Systems Engineer Waterview House, 1 Roundwood Avenue, tel +44 (0)20-8756-6722 Stockley Park, mobile +44 (0)7801-383566 Middlesex, UB11 1EJ fax +44 (0)20-8756-6701 http//www.netapp.com Get answers NOW! - NetApp On the Web - http//now.netapp.com Privileged/Confidential Information may be contained in this message. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not copy or deliver this message to anyone. In such case, you should destroy this message and kindly notify the sender by reply email. Please advise immediately if you or your employer does not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of my company shall be understood as neither given nor endorsed by it. > -----Original Message----- > From: Bertrand HUTIN [mailto:bertrand_hutin@amdahl.com] > Sent: 12 January 2001 15:32 > To: toasters(a)mathworks.com; vitar_dalloken(a)amdahl.com > Subject: performance problem on a 740 > > > On one of my customer's 740 filer, the average load is 72% > and reached 100%, > with OPS around > 200 to 400. > On another one with about the same OPS, the average load is 42%. > > Net and disk input/output is almost the same on both filers. > > what could be wrong? > > >

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Re: F740 + Cajun gigabit switches
by Jim VandeVegt 12 Jan '01

12 Jan '01

I'm looking for sites that have experience running Gb ethernet through Lucent Cajun switches, particularly the P550. In our environment, we have two F740 filers. One is the production machine that all the clients connect to (call it F1), the other (call it F2) is a snapmirror backup. When both F1 and F2 are connected to the public network with Gb links, we experience intermittent connection closings on large transfers between the filers. Network captures indicate reset (RS) frames being sent one way or the other closing the connection. We don't see this happen when F2 is on a 100 Mbps FDX connection. We also have not been able to reproduce the problem running snapmirror over a Gb private link between the filers. ===== Jim VandeVegt vandevegt(a)yahoo.com vandevegt(a)avaya.com http://members.xoom.com/vandevegt Toilet paper should come off the front! __________________________________________________ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/

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RE: Net Stats, where from?
by rbonine＠millermartin.com 12 Jan '01

12 Jan '01

It's good to know we are not alone ;) --Roger "Muhlestein, Mark" <mark.muhlestein(a)netapp.com> on 01/11/2001 12:20:14 PM To: Roger Bonine/M&M@MMIS cc: Subject: RE: Net Stats, where from? Actually, there are quite a lot. And we have plans to add this feature for CIFS. I've updated the RFE we use to track this to add your request. Mark Muhlestein -- NetApp CIFS engineering -- mmm(a)netapp.com > -----Original Message----- > From: rbonine(a)millermartin.com [mailto:rbonine@millermartin.com] > Sent: Thursday, January 11, 2001 9:04 AM > To: toasters(a)mathworks.com > Subject: RE: Net Stats, where from? > > > > > This would be very handy for our site as well. (I get the > feeling that not many > people with NT-only sites such as ours buy filers.) > > --Roger > > > > > > "Todd C. Merrill" <tmerrill(a)mathworks.com> on 01/11/2001 09:36:44 AM > > Please respond to "Todd C. Merrill" <tmerrill(a)mathworks.com> > > To: toasters(a)mathworks.com > cc: (bcc: Roger Bonine/M&M) > Subject: RE: Net Stats, where from? > > > > On Thu, 11 Jan 2001, Witham, John wrote: > > > http://now.netapp.com/NOW/download/tools/ntaptop/ > > > > Display Top NFS Clients (netapp-top.pl) > > Note: This tool is unsupported - NetApp offers no support for it > > May I implore NetApp to make available similar capability to > that of `nfsstat -l` for CIFS clients? Maybe some hook into the pktt > capability to show per host packet/byte counts? These filers, after > all, are multi-protocol fileservers. Half the time for me it's one or > more Windows hosts that give me headaches in terms of filer load. I'd > love to be able to do ALL these functions: > > nfsstat -z > <wait> > nfsstat -l > > cifsstat -z > <wait> > cifsstat -l > > opsstat -z > <wait> > opsstat -l > > Until next time... > > The Mathworks, Inc. 508-647-7000 x7792 > 3 Apple Hill Drive, Natick, MA 01760-2098 508-647-7001 FAX > tmerrill(a)mathworks.com http://www.mathworks.com > --- > > > > > > >

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RE: disk_fw_update issue with 840-5.3.7R2
by Thomas.L.White＠chase.com 11 Jan '01

11 Jan '01

Oliver: Are you saying that if I had specified the drive - I would not have had to failover ? I tried it two days ago with 6.0.1 on an 840 that belongs to a cluster. The initial insertion of the new drive caused it's own disk_fw_update to occur on the filer that the drive belonged to. The partner however complained at me the rest of the day. I tried to "update" without any precautionary steps and the partner asked me if the owner was at the ok prompt or not - so I spoke with Reena at NetApp tech support. As per her advise - I failed over and did the update then gave back. It seems excessive to me that the partner felt the need to fw_update a disk that was already updated. Seems that it would be a simpler task to make him realize the news. - granted this was my first encounter with the dreaded "Spare Drive" replacement causing such havoc - but I will do my bit in the future to be sure that NetApp knows the model and serial number of the drives I want to replace. tw "Krause, Oliver" <OKrause(a)netapp.com>@mathworks.com on 01/08/2001 03:50:31 PM Sent by: owner-toasters(a)mathworks.com To: "'Tom \"Mad Dog\" Yergeau'" <MadDog(a)fool.com>, "'toasters(a)mathworks.com'" <toasters(a)mathworks.com> cc: Subject: RE: disk_fw_update issue with 840-5.3.7R2 As i said you can upgrade a single disk with "disk_fw_update <disk>" without service disruption while this disk is a spare. Again, you have to specify the disk. Also does a disk firmware upgrade not take 2 minutes per disk if you use disk_fw_update. Oliver BTW: ONTAP 6.0 and higher is supposed to do a automatic update when you insert a disk with older firmware (have not tried it yet). Cool, isn't it? > -----Original Message----- > From: Tom "Mad Dog" Yergeau [mailto:MadDog@fool.com] > Sent: Montag, 8. Januar 2001 17:39 > To: 'Krause, Oliver'; 'toasters(a)mathworks.com' > Subject: RE: disk_fw_update issue with 840-5.3.7R2 > > > Just upgrading one disk still takes downtime for the whole > system. The > filer may be up, but if I can't access my data, effectively, > it's down. > > "Downloading disk firmware can be disruptive to the system. > It involves spinning down and then spinning up all > affected disks, and suspending all disk I/O to all disks while > that is happening. This may take up to 2 minutes to complete. > This delay may cause clients to hang, and may cause > CIFS clients to drop sessions." > > It should be noted that this notice can be misleading. It > actually takes up > to two minutes PER TYPE OF DISK to complete a disk_fw_update. > So if you > have two models of 18 GB drives and two models of 36 GB > drives, if can take > up to eight minutes to flash the firmware. Been there, done > that. Was a > little surprised the first time. :) > > Since replacement disks often ship with firmware different > than the level > currently being used on a filer, it would be nice if > (a) NetApp checked autosupport logs and pre-flashed the > firmware for you > before sending you the disk > (b) You could flash a single disk w/o disrupting all I/O for > the entire > filer. Especially if the disk is marked as a spare and > therefore not part > of any volume. > > If NetApp wanted to get *really* ambitious (I dunno, for ONTAP 6.5 or > something), this would be wild: flash firmware on a volume > one disk at a > time, and keep the volume online. While each disk is being > flashed, use the > parity disk to serve data, and keep track of writes somewhere > to get the > flashed disk back up to synch when the flash is done. > > It's too bad NetApp doesn't offer mirroring, since if you had > mirrored sets > this would be a real piece of cake. Just flash half a mirror > while the > other half served data. > > Online disk_fw_update would be a big help in five 9s environments. > > MD > > > > -----Original Message----- > From: Krause, Oliver [mailto:OKrause@netapp.com] > Sent: Saturday, January 06, 2001 5:56 AM > To: 'Premanshu Jain'; 'toasters(a)mathworks.com' > Subject: RE: disk_fw_update issue with 840-5.3.7R2 > > > You can specify which disk to upgrade. Try > > disk_fw_update <diskname> > > This works while the system is running. > > Oliver > > > -----Original Message----- > > From: Premanshu Jain [mailto:PrJain@shastanets.com] > > Sent: Freitag, 5. Januar 2001 23:31 > > To: 'toasters(a)mathworks.com' > > Subject: disk_fw_update issue with 840-5.3.7R2 > > > > > > I have a 840 cluster. Whenever I add new disks, the cluster > > starts throwing > > 'doenrev disk firmware' error messages. NetApps suggests doing a > > disk_fw_update on the disk and strictly says "NO need to Halt > > a filer'. > > Reality is totally different. The command specifically asks > > you wether the > > cluster partner is on Halt-OK prompt or not? > > > > The workaround I am doing, intitiate a takeover and do the > > disk_fw_update. > > However, this still needs to do a takeover/giveback and 2 minutes of > > downtime...Adding/replacing bad disks is a regular activity... > > > > Any suggestions..? > > >

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72 GB rebuild times
by Tom "Mad Dog" Yergeau 11 Jan '01

11 Jan '01

Has anyone had a 72 GB drive fail yet? If so, can you let us know how long the rebuild took and how many drives are in the volume? I'm particularly interested in how long it takes to rebuild a 72 GB drive in a 6-7 disk and a 10-14 disk volume. Thanks, MD

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RE: Net Stats, where from?
by rbonine＠millermartin.com 11 Jan '01

11 Jan '01

This would be very handy for our site as well. (I get the feeling that not many people with NT-only sites such as ours buy filers.) --Roger "Todd C. Merrill" <tmerrill(a)mathworks.com> on 01/11/2001 09:36:44 AM Please respond to "Todd C. Merrill" <tmerrill(a)mathworks.com> To: toasters(a)mathworks.com cc: (bcc: Roger Bonine/M&M) Subject: RE: Net Stats, where from? On Thu, 11 Jan 2001, Witham, John wrote: > http://now.netapp.com/NOW/download/tools/ntaptop/ > > Display Top NFS Clients (netapp-top.pl) > Note: This tool is unsupported - NetApp offers no support for it May I implore NetApp to make available similar capability to that of `nfsstat -l` for CIFS clients? Maybe some hook into the pktt capability to show per host packet/byte counts? These filers, after all, are multi-protocol fileservers. Half the time for me it's one or more Windows hosts that give me headaches in terms of filer load. I'd love to be able to do ALL these functions: nfsstat -z <wait> nfsstat -l cifsstat -z <wait> cifsstat -l opsstat -z <wait> opsstat -l Until next time... The Mathworks, Inc. 508-647-7000 x7792 3 Apple Hill Drive, Natick, MA 01760-2098 508-647-7001 FAX tmerrill(a)mathworks.com http://www.mathworks.com ---

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RE: Net Stats, where from?
by Witham, John 11 Jan '01

11 Jan '01

Not to skin a dead horse... http://now.netapp.com/NOW/download/tools/ntaptop/ Display Top NFS Clients (netapp-top.pl) Note: This tool is unsupported - NetApp offers no support for it If you would like to see a per-client summary of NFS activity on a NetApp filer, this Unix Perl script utility will help. Here's some sample output: NFS/s total NFS/s = 708 | interval = 60 ------ ---------------------------------------- 323 mercury.netapp.com 156 venus.netapp.com 113 earth.netapp.com 61 mars.netapp.com 48 jupiter.netapp.com 3 saturn.netapp.com 3 uranus.netapp.com 1 neptune.netapp.com HTH -john John Witham MCSE, MCP+i, A+ Senior Systems Engineer Takeda Pharmaceuticals America, Inc. V://847.383.3304 F://847.383.3205 mailto://jwitham@takedapharm.com -----Original Message----- From: Collins, Brian [mailto:brian.collins@netapp.com] Sent: Wednesday, January 10, 2001 7:51 AM To: 'Martin Hannigan'; BrianH(a)dice.com; toasters(a)mathworks.com Subject: RE: Net Stats, where from? You might want to look at http://now.netapp.com/NOW/download/tools/filer-mrtg/ as well. bc -----Original Message----- From: Martin Hannigan [mailto:hannigan@fugawi.net] Sent: Wednesday, January 10, 2001 7:54 AM To: BrianH(a)dice.com; toasters(a)mathworks.com Subject: Re: Net Stats, where from? Try MRTG. Do a google search. It's an SNMP tool that allows you to script "things" reported by SNMP. At the minimum, run it against the filer and the switch for the office, if it's SNMP'able, and you should be able to see the port it's coming from..at a minimum. But also, using stats on the filter to track down the file set is useful. I haven't had to do this in awhile, so I can't help you there. -M At 09:06 PM 1/9/2001 -0600, BrianH(a)dice.com wrote: >Does anyone know a nice easy way to tell where network traffic is coming >from? Something like nfssat -l where you can see that x% of your traffic >comes from xxx.xxx.xxx.xxx or something like that? I have tons and tons of >writes happending on my 740, which is killing the CPU. The problem is it >just started the other day and it is killing the overall performance of the >filer. nfsstat -l shows me the number of NFS ops, and none of them seem out >of line at all. > >Ideas? > >--Brian

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RE: Net Stats, where from?
by Krause, Oliver 11 Jan '01

11 Jan '01

Sorry, i forgot to mention that is was based on the config files which you can find at the previous mentioned link, but i modified it a lot. > -----Original Message----- > From: Jeffrey Krueger [mailto:jkrueger@qualcomm.com] > Sent: Mittwoch, 10. Januar 2001 21:23 > To: Quentin Fennessy > Cc: Manny Kaiser; toasters(a)mathworks.com > Subject: Re: Net Stats, where from? > > > On Wed, Jan 10, 2001 at 11:56:07AM -0600, Quentin Fennessy wrote: > > > > mkaiser(a)mmcnet.com said: > > > Touching on the subject of MRTG, I suggest using it's successor - > > > cricket: > > > > > http://cricket.sourceforge.net > > > > I'll second that comment -- we are using cricket to help > > manage 28 filers in 3 buildings in 2 states. About 15TB. > > We're using FILER-MRTG as distributed by NetApp. Could > anyone donate some > functional (and hopefully documented) cricket configurations > for filers? > > -- Jeff > > -- > -------------------------------------------------------------- > -------------- > Jeff Krueger, NetApp CA E-Mail: > jeff(a)qualcomm.com > Senior Engineer Phone: 858-651-6709 > NetApp Filers / UNIX Infrastructure Fax: 858-651-6627 > QUALCOMM, Inc. IT Engineering Web: > www.qualcomm.com >

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RE: Net Stats, where from?
by Krause, Oliver 11 Jan '01

11 Jan '01

Attached you can find a config i made some weeks ago. It is still work in progress, especially the interface part is not satisfying yet. Oliver > -----Original Message----- > From: Jeffrey Krueger [mailto:jkrueger@qualcomm.com] > Sent: Mittwoch, 10. Januar 2001 21:23 > To: Quentin Fennessy > Cc: Manny Kaiser; toasters(a)mathworks.com > Subject: Re: Net Stats, where from? > > > On Wed, Jan 10, 2001 at 11:56:07AM -0600, Quentin Fennessy wrote: > > > > mkaiser(a)mmcnet.com said: > > > Touching on the subject of MRTG, I suggest using it's successor - > > > cricket: > > > > > http://cricket.sourceforge.net > > > > I'll second that comment -- we are using cricket to help > > manage 28 filers in 3 buildings in 2 states. About 15TB. > > We're using FILER-MRTG as distributed by NetApp. Could > anyone donate some > functional (and hopefully documented) cricket configurations > for filers? > > -- Jeff > > -- > -------------------------------------------------------------- > -------------- > Jeff Krueger, NetApp CA E-Mail: > jeff(a)qualcomm.com > Senior Engineer Phone: 858-651-6709 > NetApp Filers / UNIX Infrastructure Fax: 858-651-6627 > QUALCOMM, Inc. IT Engineering Web: > www.qualcomm.com >

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Net Stats, where from?
by BrianH＠dice.com 10 Jan '01

10 Jan '01

Does anyone know a nice easy way to tell where network traffic is coming from? Something like nfssat -l where you can see that x% of your traffic comes from xxx.xxx.xxx.xxx or something like that? I have tons and tons of writes happending on my 740, which is killing the CPU. The problem is it just started the other day and it is killing the overall performance of the filer. nfsstat -l shows me the number of NFS ops, and none of them seem out of line at all. Ideas? --Brian

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RE: Net Stats, where from?
by Collins, Brian 10 Jan '01

10 Jan '01

You might want to look at http://now.netapp.com/NOW/download/tools/filer-mrtg/ as well. bc -----Original Message----- From: Martin Hannigan [mailto:hannigan@fugawi.net] Sent: Wednesday, January 10, 2001 7:54 AM To: BrianH(a)dice.com; toasters(a)mathworks.com Subject: Re: Net Stats, where from? Try MRTG. Do a google search. It's an SNMP tool that allows you to script "things" reported by SNMP. At the minimum, run it against the filer and the switch for the office, if it's SNMP'able, and you should be able to see the port it's coming from..at a minimum. But also, using stats on the filter to track down the file set is useful. I haven't had to do this in awhile, so I can't help you there. -M At 09:06 PM 1/9/2001 -0600, BrianH(a)dice.com wrote: >Does anyone know a nice easy way to tell where network traffic is coming >from? Something like nfssat -l where you can see that x% of your traffic >comes from xxx.xxx.xxx.xxx or something like that? I have tons and tons of >writes happending on my 740, which is killing the CPU. The problem is it >just started the other day and it is killing the overall performance of the >filer. nfsstat -l shows me the number of NFS ops, and none of them seem out >of line at all. > >Ideas? > >--Brian

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RE: Net Stats, where from?
by Bailey, Jourdan 10 Jan '01

10 Jan '01

A similar case I had a couple days ago it was necessary to get a pktt trace to see a client which was running a script against a volume which did not have permissions set. The nfsstat -l command was not very helpful in finding the "Bad" client. It was in the top few of the busy clients, but the filer had a several clients running builds. The pktt converted to a snoop trace showed one client with many permission denied errors. Using top on that client found the program killing the filer performance. Jourdan > -----Original Message----- > From: Mike Smith [mailto:mikesmit@netapp.com] > Sent: Tuesday, January 09, 2001 11:00 PM > To: Sims, Aaron; BrianH(a)dice.com; toasters(a)mathworks.com > Subject: Re: Net Stats, where from? > > > Or you could use the option > > options nfs.per_client_stats.enable on > > Wait a while (say 20 minutes during the time when > the system is being written to heavily - you should be > able to see if it is being written to heavily by running > sysstat 1 for a bit). > > After a period of time you can run the following commands > to see which client/ip is doing what: > > nfsstat -l shows output like the following: > tattoo> nfsstat -l > tattoo> nfsstat -l > 10.32.16.87 cousinit.hq.netapp.com NFSOPS = 172079 (94%) > 10.32.16.88 pugsley.hq.netapp.com NFSOPS = 10580 ( 6%) > > and nfsstat -h will show more detailed output for each > client that is hitting the filer. > > To turn the option off type: > options nfs.per_client_stats.enable off > > There is a small performance penalty for turning on per client > stats. > > Hope that helps. > ~~~~~~~~~~~~~~~ > Mike Smith > Network Appliance > Escalations Engineer > 408-822-4755 > mikesmit(a)netapp.com > Get your answers on > http://now.netapp.com > ~~~~~~~~~~~~~~~~~ > > > > ----- Original Message ----- > From: Sims, Aaron <Aaron.Sims(a)netapp.com> > To: <BrianH(a)dice.com>; <toasters(a)mathworks.com> > Sent: Tuesday, January 09, 2001 7:39 PM > Subject: RE: Net Stats, where from? > > > > Use 'pktt' on the filer to collect > > a packet trace. It's in tcpdump format. > > You can use ethereal (www.ethereal.org) to > > read the trace. From that you should > > be able to find the culprit. > > > > You can use pktt as such: (my comments are in {}) > > > > pktt start e0 { this starts tracing e0 } > > pktt dump { this causes a file to be created with > the content of > the > > dump} > > pktt stop e0 { stops capturing packets on e0 } > > > > THe interface name can be changed to 'all'. > > There are some other options to pktt. > > -d <dir> /* Specifies the directory to put trace in */ > > -b <buffersize> /* How big a buffer to use to capture packets... > > don't make this too large... never more than 1m */ > > -i <ipaddr> /* Self explanitory */ > > > > There are some other options. You can > > search for 'pktt' on NOW to get more info. > > > > Aaron > > > > > > > > > -----Original Message----- > > > From: BrianH(a)dice.com [mailto:BrianH@dice.com] > > > Sent: Tuesday, January 09, 2001 10:07 PM > > > To: toasters(a)mathworks.com > > > Subject: Net Stats, where from? > > > > > > > > > Does anyone know a nice easy way to tell where network > > > traffic is coming > > > from? Something like nfssat -l where you can see that x% of > > > your traffic > > > comes from xxx.xxx.xxx.xxx or something like that? I have > > > tons and tons of > > > writes happending on my 740, which is killing the CPU. The > > > problem is it > > > just started the other day and it is killing the overall > > > performance of the > > > filer. nfsstat -l shows me the number of NFS ops, and none > > > of them seem out > > > of line at all. > > > > > > Ideas? > > > > > > --Brian > > > > > >

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RE: Net Stats, where from?
by Sims, Aaron 10 Jan '01

10 Jan '01

Use 'pktt' on the filer to collect a packet trace. It's in tcpdump format. You can use ethereal (www.ethereal.org) to read the trace. From that you should be able to find the culprit. You can use pktt as such: (my comments are in {}) pktt start e0 { this starts tracing e0 } pktt dump { this causes a file to be created with the content of the dump} pktt stop e0 { stops capturing packets on e0 } THe interface name can be changed to 'all'. There are some other options to pktt. -d <dir> /* Specifies the directory to put trace in */ -b <buffersize> /* How big a buffer to use to capture packets... don't make this too large... never more than 1m */ -i <ipaddr> /* Self explanitory */ There are some other options. You can search for 'pktt' on NOW to get more info. Aaron > -----Original Message----- > From: BrianH(a)dice.com [mailto:BrianH@dice.com] > Sent: Tuesday, January 09, 2001 10:07 PM > To: toasters(a)mathworks.com > Subject: Net Stats, where from? > > > Does anyone know a nice easy way to tell where network > traffic is coming > from? Something like nfssat -l where you can see that x% of > your traffic > comes from xxx.xxx.xxx.xxx or something like that? I have > tons and tons of > writes happending on my 740, which is killing the CPU. The > problem is it > just started the other day and it is killing the overall > performance of the > filer. nfsstat -l shows me the number of NFS ops, and none > of them seem out > of line at all. > > Ideas? > > --Brian >

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following unix soft links
by Coder, James (STP) 09 Jan '01

09 Jan '01

I recently moved users from a Solaris home server to our 760 (6.0.1.r1). filer. The users had created soft links (ln -s) to directories (either within their home directory or to other points via the automounter). Previously the Unix home shares were shared via samba and Unix users in the Windows environment could follow a soft link to the directory. With the data moved to the NetApp, this is no longer available when using CIFS. I opened a case with NetApp and basically the answer was - that's right - the filer won't follow the link to a directory. I have toyed with the idea of using samba on a box and letting the user point to it, thus letting samba provide the share service. Have not tried this, but was wondering if anyone has? Does anyone know of a work-around for this? Thx in advance for any replies. JCC James C. Coder UNIX Administrator Guidant Corporation Phone: 651-582-4797 Email: james.coder(a)guidant.com <mailto:james.coder@guidant.com>

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