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RE: max file system size
by Reidenbach, Edward 28 Jan '00

28 Jan '00

Jason' response is correct. -----Original Message----- From: Timothy A. McCarthy [mailto:tmac@netapp.com] Sent: Friday, January 28, 2000 7:37 AM To: Jason Middlebrooks Cc: toasters(a)mathworks.com Subject: Re: max file system size The F760 could have at most: 168 9GB disks for total Raw/unformatted capacity of 1.4TB (Minimum 3 loops of 56 disks) or 84 18GB disks for a total Raw/unformatted capacity of 1.4TB (Minimum 2 loops, can have no more than 56 drives on one loop) or 42 36GB disks for a total Raw/unformatted capacity of 1.4TB (Minimum 1 loop. More loops can be added if desired).

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RE: max file system size
by Bond, Andrew 28 Jan '00

28 Jan '00

Actually no you can't - 56 * 36 = 2TB, which is not currently supported. You can have 42 * 36GB drives on an F760 (42 * 34.5GB formatted = 1.4TB). I don't believe there is any performance compromise here; there may possibly be a benefit in splitting the disks over two loops for particular access patterns (for example large sequential access), but I don't believe we have done any profiling of this yet. Regards, Andrew > -----Original Message----- > From: Jason Middlebrooks [mailto:Jason_Middlebrooks@datalink.com] > Sent: 28 January 2000 15:44 > To: Bond, Andrew > Cc: toasters(a)mathworks.com > Subject: RE: max file system size > > > So on a F760 I can have 56 32GB drives on one fibre loop? Is any > performance lost here? > > Thanks > Jason > > > > > > "Bond, Andrew" <abond(a)netapp.com> on 01/28/2000 09:48:33 AM > > To: Jason Middlebrooks/Datalink > cc: toasters(a)mathworks.com > Subject: RE: max file system size > > > > > This question should really be addressed to your local NetApp > sales person > or > SE, however: > > > Is the maximum storage per fibre loop still 464.4GB? > > No. > > The maximum storage per F760 is presently approx. 1.4TB raw > disk space. > This > can be on one loop or more than one loop, in whatever config > you require, > subject to a maximum of 56 devices per loop. > > Regards, > Andrew > > > >

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max file system size
by Jason Middlebrooks 28 Jan '00

28 Jan '00

Is the maximum storage per fibre loop still 464.4GB? So I can not have 8 shelves full of 18 GB drives but I can have the following: 56 9 GB drives 28 18 GB drives 14 36 GB drives If so this sucks. The drives are improving but the total storage space is not increasing. When is this going to change? Jason

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RE: max file system size
by Bond, Andrew 28 Jan '00

28 Jan '00

This question should really be addressed to your local NetApp sales person or SE, however: > Is the maximum storage per fibre loop still 464.4GB? No. The maximum storage per F760 is presently approx. 1.4TB raw disk space. This can be on one loop or more than one loop, in whatever config you require, subject to a maximum of 56 devices per loop. Regards, Andrew

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SQL users
by Michael Linett 28 Jan '00

28 Jan '00

Hi : We have a customer who is seriously considering purchasing a NetApp 740 from us and he wants to know if he can contact some folks who are using a Filer with SQL7.0 and what problems have been encountered. I was hoping that a few of the toasters group might be able to provide us with your references and experiences, as most of our customers are not using SQL7.0. Thanks for your help, Michael Linett - President Mike(a)zerowait.com * http://www.zerowait.com PH 302.266.9408 FX 302.738.4302 http://www.loadbalancing.net - The Source for information on Load Balancing Technology http://www.nas-san.com - Information on Network Attached Storage and Storage Area Networks

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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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