toasters January 2000

toasters@lists.teaparty.net

120 participants
129 discussions

Re: filer in Unix / NT environment
by Colm Buckley 28 Jan '00

28 Jan '00

Mike Hollyman writes: > We are a primarily Unix environment and are placing a netapp > in for a shared filesystem. > > We are told that the Samba PDC will not work to authenticate > the filer in CIFS. We've also tried Sun's NetLink software > that emulates a PDC with no luck. > > Is there any way to get encrypted passwords to the filer > without using a "real" NT server PDC? We had a similar situation when we got our F720 - the original plan was to use it with SunLink Server, but it appeared that this system's emulation of a PDC was not perfect - IIRC, there was an issue with endian-ness of some transactions (1). Samba doesn't work yet either, but I suspect that it will at some stage in thr future. However, we had no option but to introduce a real NT Server as a PDC (although the accounts are set up on it under remote-control from the Unix box which contains the master user account database). Colm -- Colm Buckley B.A. B.F. # colm(a)tuatha.org colm.buckley(a)cs.tcd.ie Department of Computer Science # +353 87 2469146 # whois cb3765 Trinity College, Dublin 2, Ireland. # http://www.tuatha.org/~colm/ Seen it all, done it all, can't remember most of it. (1) Bloody Microsoft.

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Hidden commands
by Deron Johnson 28 Jan '00

28 Jan '00

A few potentially useful hidden commands have been mentioned on this list recently. Namely rdfile - read a file wrfile - write a file pktt - packet trace Are there any others worth knowing about? Someone mentioned that these commands may be dangerous to use. Any comments? -- Deron Johnson djohnson(a)amgen.com

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Re: Hidden commands
by Jim Ripley (49er Fan) 28 Jan '00

28 Jan '00

Hi, I wanted to state that "wrfile" will blow away whatever file you are issuing it on as soon as you execute it. So please be careful. In the past we have used wrfile to add a line to like the /etc/rc file or /etc/hosts or whatever but to add that one line we have had to re-enter in all of the original data by hand and then add the new line we want since wrfile blows away the contents of the file. That is why Netapp does not endorse the use of the rc_toggle_basic commands unless we provide training on them like in the 101 or 202 clases, or under the guidance of the tech support or escalation groups. Thanks, Jim -->>Date: Thu, 27 Jan 2000 16:54:33 -0700 (MST) -->>From: Jim Davis <jdavis(a)cs.arizona.edu> -->>To: Deron Johnson <djohnson(a)amgen.com> -->>cc: toasters(a)mathworks.com -->>Subject: Re: Hidden commands -->>MIME-Version: 1.0 -->> -->>On Thu, 27 Jan 2000, Deron Johnson wrote: -->> -->>> A few potentially useful hidden commands have been mentioned on this -->>> list recently. Namely -->>> -->>> rdfile - read a file -->>> wrfile - write a file -->>> pktt - packet trace -->>> -->>> Are there any others worth knowing about? -->> -->>If you take the Netapp 202 course they'll go into a lot of other ones. But -->>many of those are pretty specialized or obscure. -->> -->>> Someone mentioned that these commands may be dangerous to use. Any comments? -->> -->>Umm, well I doubt you'll hurt yourself with rdfile -- it's handy for -->>quickly listing files on the console. But of course you can go to your -->>admin host and cat /net/toaster/whatever, too. Some of the really obscure -->>stuff (like the ~pi things at the boot floppy level) can be pretty drastic -->>if you aren't careful. I managed to hose a filer or two in the Netapp 202 -->>lab that way! -->> -->>Let's put it this way -- I'm glad I took that course and know some -->>background about those commands. But if I ever get the filer in deep I'm -->>still going to call support and do what they say, instead of grabbing my -->>Netapp 202 notebook and just shooting from the hip. -->> ************************************************************ JIM RIPLEY Escalation Engineer -------------------------- Email: jamesr(a)netapp.com Tech Support Hotline: 1-888-4-NETAPP HQ Address Network Appliance 495 East Java Drive Sunnyvale, CA 94089 Get answers NOW! - NetApp On the Web - http://now.netapp.com ************************************************************

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filer in Unix / NT environment
by Mike Hollyman 27 Jan '00

27 Jan '00

We are a primarily Unix environment and are placing a netapp in for a shared filesystem. We are told that the Samba PDC will not work to authenticate the filer in CIFS. We've also tried Sun's NetLink software that emulates a PDC with no luck. Is there any way to get encrypted passwords to the filer without using a "real" NT server PDC? Mike

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RE: Tape technologies: off topic
by Clawson, Simon 27 Jan '00

27 Jan '00

Will they go down in price? ..Hm..£50 per tape..!! or am I being conned? -----Original Message----- From: Bud Greasley [mailto:bud@algorithmics.com] Sent: 26 January 2000 22:30 To: toasters(a)mathworks.com Subject: Tape technologies: off topic Any opinions out there on what tape technology will dominate in the next year? Mammoth 2 is soon to be released, and promises to have better capacity and performance than DLT (7000/8000). Super DLT is supposedly coming this quarter, and will leap frog Mammoth 2. Any insights welcome. Sorry if this is off topic. I figure, you folks have the storage, you have to back it up ;-). ---------------------------- Bud Greasley Manager, NCIT Algorithmics Inc. Phone: 416.217.4202 Fax: 416.971.6263 Email: bud(a)algorithmics.com

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Tape technologies: off topic
by Bud Greasley 27 Jan '00

27 Jan '00

Any opinions out there on what tape technology will dominate in the next year? Mammoth 2 is soon to be released, and promises to have better capacity and performance than DLT (7000/8000). Super DLT is supposedly coming this quarter, and will leap frog Mammoth 2. Any insights welcome. Sorry if this is off topic. I figure, you folks have the storage, you have to back it up ;-). ---------------------------- Bud Greasley Manager, NCIT Algorithmics Inc. Phone: 416.217.4202 Fax: 416.971.6263 Email: bud(a)algorithmics.com

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RE: Tape technologies: off topic
by Cormier, Darleen 27 Jan '00

27 Jan '00

Hi Bud, You might want to check out the following site. http://www.performancecomputing.com/features/9912sr.shtml It lists a variety of tape technologies and specs and when some of the new stuff is slated for release. As far as who will win the tape technology wars, I won't even pretend to know, but what I'm seeing out in the real world right now, is DLT7000/8000 and AIT-2. I personally think that Exabyte destroyed their credibility with the first version of Mammoth. It was something like three years late. They made announcements like every three months,for years. It's coming, it's coming. When it finally did show up, nobody gave a damn, because everyone had bought DLT by then. I know a lot of customer's are waiting for Quantum's SuperDLT due out at the end of this year, because they are already using DLT and have found the DLT7000 to be reliable, once Quantum improved their "dropped leader" problem. Sony's AIT-2, also has a good rep and is being made available in more of the various libraries. I think one of the real determining factors is the number of library vendors who choose to support the various tape technologies. Because of the massive growth in data, fewer sites are using stand-alone drives and more customers are choosing libraries with backup software to manage them. Right now the majority of library vendors I know about, all have at least DLT support and more are also starting to offer AIT-2. That is one factor in determining the future. Sorry this message rambled on so long. -----Original Message----- From: Bud Greasley [mailto:bud@algorithmics.com] Sent: Wednesday, January 26, 2000 2:30 PM To: toasters(a)mathworks.com Subject: Tape technologies: off topic Any opinions out there on what tape technology will dominate in the next year? Mammoth 2 is soon to be released, and promises to have better capacity and performance than DLT (7000/8000). Super DLT is supposedly coming this quarter, and will leap frog Mammoth 2. Any insights welcome. Sorry if this is off topic. I figure, you folks have the storage, you have to back it up ;-). ---------------------------- Bud Greasley Manager, NCIT Algorithmics Inc. Phone: 416.217.4202 Fax: 416.971.6263 Email: bud(a)algorithmics.com

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Legato backup revisitted
by Christopher Algar 27 Jan '00

27 Jan '00

Struggled though a barren period of no filers................but I'm about to get an F760! I've used these before, but this will be new to this company. At the same time we are considering a backup solution. Actually that's one of the main reasons I was able to get the filer in - snapshots and all that good stuff. The standard for our associated companies is Legato Networker. I've read through the threads from early last year - NDMP not yet, ACL's only via NT etc. etc. So, what is the latest? Would appreciate opinions on the following:- If I want to preserve NTFS permissions then should the Legato server be on NT? If so, Is Legato reliable/stable on NT? If it works and is a lot cheaper then OK, with have the people to run either. For information, will will be at ~ 750 G, probably 2/3 rds NT data, the rest an eclectic variety of unix(s) and linux. Thanks in advance for all input. Chris Algar

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Win200 and Netapp Clustering
by John Gaines 26 Jan '00

26 Jan '00

Does anyone have any experience with the way Win2000 handles a failover of a Netapp cluster? Does the Client have to re-connect like a NT 4.0 box does? -- ______________________________________________________ John A. Gaines I2 Senior UNIX Administrator "The unexamined life is not worth living." -Socrates "We can't solve problems by using the same kind of thinking we used when we created them." -Albert Einstein ______________________________________________________

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RE: HPUX 10.20 problems
by Fox, Adam 26 Jan '00

26 Jan '00

A good tool for Tech Support people (HP or NetApp) is a network trace of the transactions. This is especially good if you have one client who is working and one who is not. Taking a packet chase of each and comparing them tells Support people (and possible engineers) a lot of useful information. If you can't take traces from the client side (Solaris and SGI have snoop, HP I don't think ships one), you can always try pktt on the NetApp. This produces a TCP dump-format which some utilities can covert to other formats (snoop, sniffer, etc.). If you do decide to open a ticket with NetApp on this, getting some kind of packet trace will be very useful. A properly-done trace can tell us if the client is doing something that the server doesn't respond to properly, or if the client isn't generating a request or something else. Another bonus of getting this is it helps Engineers of any vendor figure out what's going on and possibly with reproduction efforts. Just a suggestion. -- Adam Fox NetApp Professional Services, NC adamfox(a)netapp.com > -----Original Message----- > From: Graham Knight [mailto:grahamk@ast.lmco.com] > Sent: Wednesday, January 26, 2000 11:06 AM > To: toasters(a)mathworks.com > Subject: HPUX 10.20 problems > > > > We have a problem with HP-UX 10.20 clients. Occasionally > they stop getting NFS updates from our NAC servers. For > instance, you might create a file, but when you > attempt do an "ls" on the file it does not > appear. But if you log into another system and do an "ls" > it is there. The only solution we have found is > to reboot the HP. > > HP is no help. Their tech support continues it's > downward spiral. > > At one point a few years ago we had the exact same > problem with HP's and solved it by installing 4 or > 5 patches. It was just dumb blind luck that I happened > upon an HP tech who knew what he was doing. Now those > patches are out of date, and the problem has popped > up again. > > My hope is that someone on the list knows about this problem > and can give me a list of patches they installed to > fix it. Any input would be most appreciated. > > Thanks, > Graham >

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toasters January 2000