toasters

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13515 discussions

Archive of this mailing list?
by Brian Tao 12 Jun '97

12 Jun '97

Is there an archive of this mailing list somewhere, preferably searchable? -- Brian Tao (BT300, taob(a)netcom.ca) "Though this be madness, yet there is method in't"

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Hello...
by Brian Tao 12 Jun '97

12 Jun '97

Just checking to see if anyone else is alive here... ;-) ObInventory: got an F220, getting two F210's and an F230. :) -- Brian Tao (BT300, taob(a)netcom.ca) "Though this be madness, yet there is method in't"

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Re: Hello...
by sthaug＠nethelp.no 12 Jun '97

12 Jun '97

> > We are currently using NFS over TCP for news purposes. Is that a bad > > thing? > Not necessarly. Do you have a reason for needed tcp such as your are > doing long haul networking? > > However there are a lot of things that can go wrong with tcp that can't > with udp (there are lots of very broken tcp implementations in this > world: not ours of course:-) I would sugest disabling tcp and see > what happens. If things stay the same or get better just leave it that > way. If not you had tcp turned on for a reason. We currently run with NFS v2/UDP on our NetApp. The change from v3 to v2 resulted in a noticeable decrease in expiry time for us. The disadvantage of NFS v2 is that you won't be able to get number of inodes (files) via NFS. I like the suggestion from Guy Harris to deal with this: Use two mount points for the NetApp file system - one NFSv2 for the main News spool, and one NFSv3 to be able to check inodes, selected by suitable mount options on client. Steinar Haug, Nethelp consulting, sthaug(a)nethelp.no

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mixing 4Gb and 9Gb discs
by Tom Yates 05 Jun '97

05 Jun '97

here's the situation. i have an F330, currently with 20 4Gb discs in three shelves. it is not performance-bound, it's capacity-bound. i'd heard (from netapp) sometime back that, at some future date, mixed 4 and 9 arrays would be permitted, but that i couldn't remove existing 4s, and that 9s would require a dedicated shelf. therefore, i'd tried to keep my disc load on three shelves, and so far succeeded. if i understand correctly, whilst i will shortly be allowed to mix 4s and 9s, i won't be allowed to use a full set of 9s - in fact, i'll be limited to 21*4 + 3*9 for data, with one hot spare and one parity, leaving me two disc slots i can't use. is this in fact the case, and if so, would anyone care to try to explain why, *bearing in mind that this toaster is definitely not performance-limited*? Tom Yates - Unix Chap - The Mathworks, Inc. - +1 (508) 647 7561 MAG#65061 DoD#0135 AMA#461546 1024/CFDFDE39 0C E7 46 60 BB 96 87 05 04 BD FB F8 BB 20 C1 8C "Microsoft (tm) is a single-sofa supplier"

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CIFS and HTTP performance
by Aamer Latif 22 May '97

22 May '97

I have a couple of questions regarding CIFS and HTTP performance on NAC filers. Appreciate any answers regarding these. In reviewing the CIFs performance white paper on the NAC website (http://www.netapp.com/technology/level3/3015.html), I'm unclear on what type of NetBench test is being run. Specifically, I'm not sure if the paper describes NetBench Disk Mix or Random Read/Write tests. I'd thought that the graphs pertained to the Disk Mix test but block size variation test (section 3.1 in above paper) made me think that perhaps Random Read/Write test was being described (Disk Mix does not allow the I/O block size to be varied? If the Read/Write test is being used, I would be very interested in knowing the file sizes that are being used in these tests. Second, I'm wondering if there is any info or experiences regarding how many http op/s can a Netapp Web filer support? Thanks! Aamer a.latif(a)ieee.org

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serial port
by Tom Yates 22 May '97

22 May '97

if the serial port on an F330 seems to be "wedged", ie seems to be operating at the wrong speed, spitting back junk characters, and the like, is there any way to clear it without resetting the toaster? i have high confidence in the terminal being ok as it's on a serial switch between my two F330s, and the other one seems fine. i have tried the "busted" toaster on all three other ports on the serial switch, so i don't think the problem is there, either. just curious. tom yates unix chap

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F520 slots?
by Jim Davis 21 May '97

21 May '97

I'm looking for info about how many expansion slots a F520 system has -- if that's at www.netapp.com then I'm overlooking it. We're looking at a system with 64, maybe 128MB RAM 2MB NVRAM 3 disk shelves 1 network card and I'm trying to find out how much room for future SCSI or networking cards that would leave.

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CIFS and HTTP performance
by Aamer Latif 13 May '97

13 May '97

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problems with F220 and INN on BSD/OS 3.0 (NFS v3 over TCP)
by Chris Caputo 06 May '97

06 May '97

Hi. I am new to the list. Is anyone else having problems with INN's fastrm not actually deleting all files it intended to delete when used on BSD/OS 3.0 with an F220? /bin/rm seems to work fine and in looking at the code the major difference seems to be that /bin/rm stat()'s each file before unlink()ing whereas fastrm just unlink()s. I am working up a version of fastrm that always stat()s first to see if that makes a difference. Any similar experiences? Chris

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write lock
by Tom Yates 05 May '97

05 May '97

one of my F330s in back in write hell: during large chunks of the working day, the "disk write" statistic is non-zero (extremely non-zero) most of the time. given that i'm maxed out on NVRAM (8Mb), is there anything i can do to tune things? Tom Yates - Unix Chap - The Mathworks, Inc. - +1 (508) 647 7561 MAG#65061 DoD#0135 AMA#461546 1024/CFDFDE39 0C E7 46 60 BB 96 87 05 04 BD FB F8 BB 20 C1 8C "Microsoft (tm) is a single-sofa supplier"

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None
by Prashanth Rao U 02 May '97

02 May '97

unsubscribe prao(a)india.ti.com

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None
by gsmith＠netapp.com 01 May '97

01 May '97

subscribe gsmith(a)netapp.com

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NFS v3 tcp brokenness....
by alexei＠cimedia.com 01 May '97

01 May '97

Tonight my filer stopped serving NFS over its FDDI interface. Twice. I called NAC support, got a call back, they had me take the interface down and back up. That fixed it temporarily. It was then reccomended that I disable the tcp extension (of course, it involves some work on the client side as well; joy). I did it and now it seems to be happier. My beef with NAC is that the tech guy said that there had been many problems like this, alot of open tickets in the support queue and that the next release of the OS would have the tcp option disabled (as the default; not removed). Why in the world has NAC not sent out an advisory about this? If it has been causing so many problems, the least they could have done is let us know that it could happen. Since this is a new filer (f540, 256MB read cache, 8MB nvram, 100GB, 2x100bT, 1 fddi), the problem only affected some setup stuff I was doing. The problem seems worse with fddi than with ethernet connections (my mounts that occured over ethernet were fine while the fddi ones were not). Anybody from the peanut gallery? Alexei

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toaster testing.
by Michael Salmon 29 Apr '97

29 Apr '97

We are about to loan a toaster to see how well it performs in our environment (mixed Sun/Auspex/pc, NFS/SMB, ATM(Fore)/Ethernet). Does anyone have any tips about toaster weaknesses that we should try? We aren't trying to run down NAC, all systems have weaknesses, it's the one that you don't know about that are troublesome. /Michael -- /--------------------------------\ ___ | Michael Salmon | / \ | Ericsson Utveckling AB | / | | ÄS/UAB/Z/IPE | / _| | Box 1505 | / | | 125 25 Älvsjö | / / | Sweden | / / | | | | +--------------------------------+ | \ | Michael.Salmon(a)uab.ericsson.se | / *| | | / _/ | Tel: +46 8 727 30 74 | | | | FAX: +46 8 647 82 76 | | / # | GSM: +46 705 902 842 | | __// \--------------------------------/ |_/ "*Real* wizards don't whine about how they paid their dues." -- Quentin Johnson (quent(a)atanasoff.cs.iastate.edu)

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ATM NIC Compatibility
by John F. Kane 23 Apr '97

23 Apr '97

We are planning an ATM backbone for our network. What ATM Network Interface Cards are compatible with the F330s? Thanks. John F. Kane The MITRE Corporation

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ATM NIC Compatibility
by John F. Kane 22 Apr '97

22 Apr '97

What ATM Network Interface Cards are compatible with the F330s? -- John F. Kane Lead Staff, G052 The MITRE Corporation

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Re: 9Gb discs for F330s
by Steve Gremban 22 Apr '97

22 Apr '97

Are there any issues we should know about mixing different sized disks on the same system? I know it will work but is it something I should avoid? regards, Steve Gremban gremban(a)ti.com ------------- Begin Forwarded Message ------------- >this is great, and many thanks, but as someone who has only two slots left >in the third shelf of each of his F330s, and will need to know what to buy >shortly, could you give some indication of the timescale for the official >announcement? > >thanks. > > Tom Yates - Unix Chap - The Mathworks, Inc. - +1 (508) 647 7561 ------------- End Forwarded Message -------------

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Re: 9Gb discs for F330s
by cheena＠netapp.com 21 Apr '97

21 Apr '97

Since I happen to be an official spokesperson for product related issues, I'll defer product details and schedules until the forthcoming announcement. NetApp expects to support 9 GB disks on all our current filers: NetApp F220, F330 and F540. Configuration details will be provided at product introduction time. Cheena

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9Gb discs for F330s
by Tom Yates 21 Apr '97

21 Apr '97

would anyone care to comment on when we might expect to see 9Gb discs approved and available for the F330, and whether different shelves will be required? Tom Yates - Unix Chap - The Mathworks, Inc. - +1 (508) 647 7561 MAG#65061 DoD#0135 AMA#461546 1024/CFDFDE39 0C E7 46 60 BB 96 87 05 04 BD FB F8 BB 20 C1 8C "Microsoft (tm) is a single-sofa supplier"

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NetApp reports
by Christoph Doerbeck 18 Apr '97

18 Apr '97

Greetings, I've recently been approached by management and asked to produce some weekly/monthly reports on our F330's. Do you have any suggestions on which technique provides the best reports? Are there pubically available scripts you might recommend? ++-------------------------------------- Christoph Doerbeck Motorola ISG / DIS Mansfield, MA. USA (###) ###-#### doerbeck(a)dma.isg.mot.com ++--------------------------------------

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Reporting Statistics on NetApp's
by Christoph Doerbeck 17 Apr '97

17 Apr '97

>> I've recently been approached by management and asked to produce >> some weekly/monthly reports on our F330's. Do you have any suggestions >> on which technique provides the best reports? Are there pubically >> available scripts you might recommend? >not to sound facile, but what sort of reports? disc-usage related? >network related? load related? availability related? I apologize for the lack of detail. Our admin who had been in charge of our NetApps has recently left, and now the maintenance of these systems has fallen into my hands. The reports I've been asked to generate focus mainly on who/what users are consuming most of the space. We would also like to chart growth in order to predict expansion needs. These items are not very technical, but given the added overhead of NFS and the .snapshots, I was just curious to know how others monitor their Network Appliances. Are there any cool tricks? I guess that means "disc-usage related"... ++-------------------------------------- Christoph Doerbeck Motorola ISG / DIS Mansfield, MA. USA doerbeck(a)dma.isg.mot.com ++--------------------------------------

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F540 crashes while unlinking many files, Assertion failure?
by Ragnar Lonn 17 Apr '97

17 Apr '97

Hello, I have a Netapp F540 that has some 2-3 million files on its filesystem currently. I've been testing a news server setup on it and now I'd like to erase all these files, starting all over again with an empty filesystem. I did "rm -rf <dir>" (and no, I didn't erase the /etc dir on the Netapp) and it ran for a while, erasing lots of files, then the Netapp crashed and rebooted! I hoped it was a freak occurance so I did another rm when it got back up again but that made it crash once more. Now, I'm thinking this may have something to do with the snapshots. Because this is a newsserver I used "options nosnap on" following advice I got from people at Netapp. I also tried enabling snapshots and doing "snap sched 0 0 3@1,9,17" (just to test if it would make a difference) but the machine still was still prone to crash. I know the snapshot reserve may be too small - can that cause the server to crash like this? Yesterday I started an rm job and the F540 crashed at 2am this morning with the following message: PANIC: ../common/wafl/write_alloc.c:770: Assertion failure. version: NetApp Release 4.0.1c: Wed Jan 8 05:53:54 PST 1997 cc flags: 1 .dumping core: ........................................done ...it rebooted and ran until, I think, 4 am when it gave the same message but this time it didn't go online again because an old core file was present apparently: .Old core present on disk --- not dumped. This time it just halted. I think I read somewhere about this write_alloc.c:770: Assertion failure message/bug/whatever but I can't remember where. Can I just tell the Netapp to reboot again from the "ok" prompt or should I do something else? How do I make the machine *not* crash when erasing lots of files? Also, is there some way to re-initialize a Netapp server to the state it was when shipped? Doing a separate unlink on each file when you have several million files can be very time-consuming even if the server doesn't crash ;-) Regards, /Ragnar, Algonet

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Re: Mail Strategy
by Dave Pascoe 10 Apr '97

10 Apr '97

On Wed, 9 Apr 1997, Tom Yates wrote: >we just moved /var/spool/mail from an Ultra-2 to the toasters. i wouldn't >say it has been completely painless by any means, though from some angles >it's been a win... dave, you want to comment further? I do have a few thoughts and observations: 1) Writing to /var/spool/mail via the F330 (NFS) was a win for us in this case, especially once we increased NVRAM from 2MB -> 4MB. This particular F330 is used for other (general) access, not just for mbox duty. Observations lately point to the need for more NVRAM at peak times, so we're going to 8MB shortly. The box gets really humped when it's stuck in constant physical disk writes. The old situation was a Fast-Wide SCSI disk attached directly to the UltraSPARC 1. That disk was doing way too much. 2) One of the reasons for migrating to the Toaster was to eliminate our mailhost from exporting /var/spool/mail. This enabled us to be able to do work on the mailhost/newshost without being too disruptive. The Toasters have to always be up anyway or all UNIX boxes hang. Our current thinking is that we might do well to go to a SPARCstorage array locally attached to the mailhost and *not* exporting /var/spool/mail at all, and forcing the use of POP3/IMAP. Those people using Elm will just have to use Pine. No big loss...in fact, a big gain. But making users change email software can be a pain, especially for the zealots who insist on performing every single action from within Emacs. Don't get me wrong, I love Emacs. But sometimes you gotta draw the line. 3) If you use POP3 you will be incredibly unhappy at times, especially if even a few users have large mailboxes. This is due to the way most stock poppers do mailbox locking. (write temp file called .user.pop and then write this file out again as user) Our current approach is to set a reasonable threshold on user mailbox sizes and email users informing them to check their mail settings and clean up. There are many variables here that relate mostly to POP settings in the client programs. 4) IMAP4 is pretty good. Use it if you can. It also solves a lot of the issues with being a mobile user. IMAP4 is better than POP3 in this respect. More like a true client-server mail package with all the benefits of having source code and not needing to open shrink-wrap. -- Dave Pascoe | mailto:dave@mathworks.com | Voice: 508.647.7362 KM3T | http://www.mathworks.com | FAX: 508.647.7002 PGP fingerprint: 53 AD 71 88 2F AA 45 AC D0 2E 68 91 71 77 39 AF

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Next Gen filer?
by alexei＠cimedia.com 10 Apr '97

10 Apr '97

Has anybody seen the next generation of filers? The plan that NAC has laid out for the future is pretty cool. Not sure what things are NDA, but I am eager to see some of the stuff that the HA dude is working on. May the three stooges prosper. Alexei /.

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Mail Strategy
by John F. Kane 10 Apr '97

10 Apr '97

We are configuring three F330s into our enterprise architecture to serve /home data to our users. We currently use SparcServer 1000s for this purpose. We are interested in how other organizations are implementing UNIX mail in this situation. Is it best to put /var/spool/mail on the NetApp filers or keep it on the UNIX mail server? Thanks. -- John F. Kane Lead Staff, G052 The MITRE Corporation

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