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RE: Tape Devices and Backups.
by Maxwell Reid 28 Aug '04

28 Aug '04

We've been using the Smell Powervault 127T LTO recently... They aren't the best put together units I've seen, but after getting a couple replacements =) They seem to work pretty well... basically clones of the IBM Ultrium (I think they are just rebranded.) Regards, Max -----Original Message----- From: James Brigman To: toasters(a)mathworks.com Sent: 8/28/2004 6:01 AM Subject: RE: Tape Devices and Backups. Jamie, et. al; My comments apply to the Powervault 120T, the "shoebox" shaped systems. That particular system looks like this: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=39978&item=511879 7946&rd=1 Example of a system I'm not talking about: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=3756&item=5119064 428 Best of luck on your quest for a better backup solution. Many of us have been in the same position you find yourself in. Just be careful and do lots of research. Those unfortunate enough to have ever used the "Exabyte 120" can all (without exception) tell some horror stories that involve lots of weekend work. JKB -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of James Brigman Sent: Saturday, August 28, 2004 7:14 AM To: toasters(a)mathworks.com Subject: RE: Tape Devices and Backups. Jamie; The Powervaults are small, and once upon a time, we had some trouble with one we had. There was some mechanical part that had to be replaced and after that it worked fine. The design of the Powervault is a bit bizarre. Remember the PowerEdge 4x00's? It's got that same "tubular box" shape, which really isn't a very good shape for working with. It severely limited the number of tapes the Powervaults could handle, and there's no expansion of the unit (tape capacity) once you buy it. If I remember correctly, you get 4 or 5 tapes plus a cleaning tape and you're done. Also note: the powervault does not have any barcode read capability. There may have been a version somewhere that did, but I never saw one. Check up on support: we got rid of ours over a year ago, but if you can buy support, they might not be too bad. If you can get a StorageTek L20, that's going to be a better unit for you. I saw one on ebay two weeks ago with an LTO tape drive installed for about $5k. StorageTek support is expensive, but their products and service are excellent. The L20's have barcode reading capability built in. JKB -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Rogers, Jamie Sent: Friday, August 27, 2004 4:50 PM To: 'toasters(a)mathworks.com' Subject: Tape Devices and Backups. I am outgrowing my existing DLT autoloader which is connected to a sun workstation from which I rsh to do my dumps. I am considering purchasing either new or used an LTO. I'm running ONTAP 6.3.1 om my 760, I presently only have 1TB raw but expect that to increase in the near future. Cost is an issue, I am on a very tight budget so used equipment is pretty much my only option. Has anyone used a Dell powervault LTO with their filers or via rsh? Any other suggestions? I see a lot of these on ebay and I'm wondering why? Thanks, Jamie This electronic message, along with any attachments, is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any proprietary information or intellectual property contained in this transmission remains the sole and exclusive property of Marshall & Swift or Marshall & Swift/Boeckh. No right to use any products or services described in this transmission is valid without an executed and paid license agreement. If you received this in error, please reply to advise the sender and delete the material from any computer.

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Tape Devices and Backups.
by Rogers, Jamie 28 Aug '04

28 Aug '04

I am outgrowing my existing DLT autoloader which is connected to a sun workstation from which I rsh to do my dumps. I am considering purchasing either new or used an LTO. I'm running ONTAP 6.3.1 om my 760, I presently only have 1TB raw but expect that to increase in the near future. Cost is an issue, I am on a very tight budget so used equipment is pretty much my only option. Has anyone used a Dell powervault LTO with their filers or via rsh? Any other suggestions? I see a lot of these on ebay and I'm wondering why? Thanks, Jamie

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by oysoft＠yeboss.com 28 Aug '04

28 Aug '04

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Automatic NFS export on vol create
by Chris Thompson 27 Aug '04

27 Aug '04

I have been caught out by one aspect of the changed NFS export implementation in ONTAP 6.5.x (specifically, 6.5.1R1P6), that might have had serious security implications. When a volume is created, say /vol/test, it is now autmatically NFS exported with a rule /vol/test -rw,nosuid i.e. read-write to the world. As a volume starts off with just a root-owned top-level directory, and there's no "root=" clause, this isn't _exactly_ a security exposure staight away, but of course it becomes one as soon as more interesting data is installed there. Having noticed that at the time, I did exportfs -io rw=[a-testing-host],root=[a-testing-host] /vol/test and continued with my tests (which involved restoring bits of other filing systems into /vol/test). What I hadn't realised was that the original "vol create test" had not only exported the volume, it had added a line to /etc/exports. So the next time the filer was rebooted, the unrestricted export came back... which, of course, I didn't notice for some time. Has anyone else been caught out like this? Does anyone else think that these automatic NFS exports shouldn't be happening at all? -- Chris Thompson University of Cambridge Computing Service, Email: cet1(a)ucs.cam.ac.uk New Museums Site, Cambridge CB2 3QH, Phone: +44 1223 334715 United Kingdom.

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RE: Automatic NFS export on vol create
by John Clear 27 Aug '04

27 Aug '04

We eval'ed one of the Quantum Guardian/SnapServer boxes awhile back. While there was a command line, you had to do everything from the GUI, and even though it was Linux underneath, you couldn't use all the standard options in the export file through the GUI. We ended up sending it back and continuing to buy NetApps. It was the old 'good, cheap, fast' pick at most two. NetApp is good and fast, but not cheap. The Quantum thing wasn't that cheap, and wasn't any good, and was too broken to test fast. Flat text files are good. If NetApp wants to make everything into a database, at least have an option to populate the database from a text file. Having `exportfs -a` read /etc/exports and create /etc/exports.db is fine, but I want to be able to edit a text file. We keep quotas, exports and a few other of the config files under RCS on all our filers, so any automatic 'helpful' changes will be lost at the next check-out. John -----Original Message----- From: Mike Sphar [mailto:mike.sphar@Remedy.COM] Sent: Wednesday, August 18, 2004 12:09 PM To: toasters(a)mathworks.com Subject: RE: Automatic NFS export on vol create Speaking purely for myself, as a long-time Sysadmin, the fact that so much of Netapp's config is stored in text files was a *big* advantage to me. Databases always seem like a good idea until they get corrupted, or the front-end administration tools fail because of bad data. (Anyone else ever adminned AIX? Hell, just the other day I had to spend a fair amount of time trying to repair a corrupted registry on a Windows box.)

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RE: Mass data deletion
by jeff.mery＠ni.com 27 Aug '04

27 Aug '04

I noticed that but it doesn't appear to allow directory deletetions. There also doesn't appear to be any help for this command like many of the priv set advanced commands. It didn't like "rm -rf /vol/vol0/foo" or any other variation I could try. Jeff Mery, MCP National Instruments ------------------------------------------------------------------- "Allow me to extol the virtues of the Net Fairy, and of all the fantastic dorks that make the nice packets go from here to there. Amen." TB - Penny Arcade ------------------------------------------------------------------- _____ From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of rbaus(a)swbell.net Sent: Friday, August 27, 2004 10:33 AM To: toasters(a)mathworks.com Subject: Re: Mass data deletion There is a "rm" command in the "advanced" set of commands. -Rob jeff.mery(a)ni.com wrote: Does anyone know of a good way to delete a large amount of data from a filer? We have an F940c with a single 2.5TB volume. One of the qtrees on that volume was used as a temporary data store. Its no longer needed so I need to get rid of the 126GB of data (and ~4 million files). Is there a better/easier/faster way to do this than selecting the folder from the admin share and hitting Shift+Del? It takes an awfully long time for a client to scan the directory tree and start deleting files (even with GbE). BTWThis is a CIFS-only filer.

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Tracing NFS getattr() calls to a file
by John Stoffel 27 Aug '04

27 Aug '04

Hi folks, I'm running into a strange problem here, where my users are beating up on an F740 running 6.4.5 (just upgraded, they did the same when it was running 5.3.7RxDy) with a ton of getattr() NFSv3 calls. The load suddenly shoots upto 7,000 nfs ops/sec, the system is using 30-50% of it's CPU, but it's barely touching the disks. The clients are all Solaris 5.x, mostly 5.7 or 5.8 with some 5.6 and 5.9 through in. I've used the netapp-top command to find the client(s) with the most nfs opertations. I'm root on all of these clients (if not, I turn off access by that client. :-) so I can get on there and do what I want, but it's not easy. I pretty much know that my users are using ClearCase and clearmake to build software, but tracking down which process/user is beating on the filesystem is making me crazy. I've tried running ethereal (version 0.8.11) on the client system(s) to look at the packets, but I'm only seeing that a bunch of calls are happening, but not which file(s) they are pointing to. Using lsof doesn't help either, since the file(s) aren't open in any manner, and since I could easily just miss which one they are looking at. We've done some simple truss -a -f on a test build, but that doesn't seem to stress out the system in the same way that my users are doing things. Really frustrating. Any suggestions or hints would be appreciated. Putting a sniffer in line with the client(s) isn't really possible since I don't have one available nor do I want to lug it all over the building to various client systems. Thanks, John John Stoffel - Senior Unix Systems Administrator - Lucent Technologies stoffel(a)lucent.com - http://www.lucent.com - 978-952-7548

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by Password 27 Aug '04

27 Aug '04

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Amperage readings for NetApp 740 head and shelves
by Maglinger, Paul 27 Aug '04

27 Aug '04

My profound thanks to the numerous replies. A little clarification... This was for sizing PDUs (Power Distribution Units for you non-Compaq/HP folks) for the server racks and not for air conditioning. Compiling all the information I went with 2.25A@120VAC for the 740 head and 3.0A@120VAC for the shelves. I think this will get us close enough where we can balance the load sufficiently. Thanks again! > Has anyone taken any amperage readings on their heads and shelves? I see by > the label that the shelves are rated at 5.5A/120VAC 3.2A/240, but I'm > wondering about the actual current draw. I could disconnect one of the > power supplies to get the reading, but this is a production system and don't > want to tempt fate. > > Thanks! > > That that is, is; that that is not, is not; that that is, is not that that > is not; that that is not, is not that that is. Is that not it? It is. > > Paul Maglinger, A+, CA, CCA, CET, MCSE > Systems Administrator Shoe Carnival Inc. (812)867-4674 pmaglinger(a)scvl.com >

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RE: Amperage readings for NetApp 740 head and shelves
by Timothy Naple 27 Aug '04

27 Aug '04

Paul, What model shelves and disks are you running on the F740? I would be happy to plug in your exact configuration and take an accurate measurement for you. Thank you, Tim Timothy Naple tnaple(a)berkcom.com 510-644-1599 VOICE 510-644-1598 FAX 888-812-9040 TOLL-FREE Berkeley Communications Corporation 2990 San Pablo Avenue Berkeley, CA 94702 http://www.berkcom.com -----Original Message----- From: Maglinger, Paul [mailto:PMAGLINGER@scvl.com] Sent: Wednesday, August 25, 2004 9:27 AM To: 'NetApps list server' Subject: Amperage readings for NetApp 740 head and shelves Has anyone taken any amperage readings on their heads and shelves? I see by the label that the shelves are rated at 5.5A/120VAC 3.2A/240, but I'm wondering about the actual current draw. I could disconnect one of the power supplies to get the reading, but this is a production system and don't want to tempt fate. Thanks! That that is, is; that that is not, is not; that that is, is not that that is not; that that is not, is not that that is. Is that not it? It is. Paul Maglinger, A+, CA, CCA, CET, MCSE Systems Administrator Shoe Carnival Inc. (812)867-4674 pmaglinger(a)scvl.com

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