toasters October 1999

toasters@lists.teaparty.net

81 participants
89 discussions

Re: now.netapp.com now needs javascript/cookies?
by sthaug＠nethelp.no 18 Oct '99

18 Oct '99

> CLI will be out in the next few years, no matters where your nostalgia goes. As I've said before (about Wellfleet/Bay/Nortel routers): Having a GUI is fine. Having a GUI *only* is terrible. Some of us swear by command line interfaces. They enable you to use any kind of terminal, and to work from home or over a slow dialup line. Yes, clearly, the use of GUIs is increasing. However, for us, a product which offers management via a GUI only starts off with a significant disadvantage (or disincentive for purchase, if you wish). Steinar Haug, Nethelp consulting, sthaug(a)nethelp.no

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group issues
by mcbride2＠us.ibm.com 16 Oct '99

16 Oct '99

I am having an issue regarding the number of groups and, the numbers of users per group at our site. We have 3 toasters running 5.2.1P2 being administered by a solaris 2.5.1 server. We have about 75 unix style qtrees for both NFS and CIFS protocols. I have a requirement that several users need to be in more than 16 groups. I believe modifying the Solaris kernel will not only slow down the access, but may present problems on the filer. Also, I require to have more than 1024 characters needed per group entry. I have tried creating sub-groups and a master group within the group file(see below) - I cannot get this to work. Maybe I need to upgrade my Solaris NIS server? example: project1:*:100:usera,userb... project2:*:101:usery,userz mstproject:*:102:project1,project2 I would think someone has encountered this problem before. I would appreciate any feedback regarding these issues. Mike McBride IBM Global Services Unix and NT Server Support mcbride2(a)us.ibm.com (760) 634-6239

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RE: Model 1400 and Y2K
by Norman, Paul 16 Oct '99

16 Oct '99

Graham, Jeff is incorrect. The information on the NOW web site is correct. FAServers, including the 1400, can not run 5.x code line of Data ONTAP. The NetApp Y2K statement is available on the web: http://www.netapp.com/y2k.html It includes a section on FAServers: FAServer® models 400, 450, 1300, and 1400 have not been tested for Y2K compliance. All of these models ceased production in October 1995 and support in April 1998. If you have one of these models, contact your Network Appliance Sales Representative or the Installed Base Group to purchase an upgrade to current filer products. The Y2K statement on the web also includes my name as the corporate contact for Y2K queries. So please feel free to e-mail/call me if you need further clarification. Paul Norman, Product Manager Direct: (408) 822-6288 Network Appliance E-Mail: pnorman(a)netapp.com 495 East Java Drive Corp: (408) 822-6000 Sunnyvale, CA 94089 Web: WWW.NetApp.Com > -----Original Message----- > From: Jeff Sloan [mailto:jeffs@netapp.com] > Sent: Friday, October 15, 1999 11:50 AM > To: 'Graham C. Knight'; toasters(a)mathworks.com > Subject: RE: Model 1400 and Y2K > > > The highest OS the FAServer 1400/450 can run is 5.1D3, and only with a > little tweaking. There is currently no OS release that makes > the 1400 Y2K > compliant. > > Jeff Sloan > > > -----Original Message----- > > From: owner-dl-toasters(a)netapp.com > > [mailto:owner-dl-toasters@netapp.com]On Behalf Of Graham C. Knight > > Sent: Friday, October 15, 1999 11:26 AM > > To: toasters(a)mathworks.com > > Subject: Model 1400 and Y2K > > > > > > > > Does anyone know if a model 1400 > > can be made Y2K compliant? The NOW > > website does not include this model > > in it's list of systems that can run 5.x > > > > Thx, > > Graham > > >

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mailboxes on toaster
by George Kahler 15 Oct '99

15 Oct '99

Hey folks, I'm looking for information that would help us alleviate a bottleneck with mailboxes and home directories on toaster(s). Yah, we still run sendmail and our inboxes are in the old Unix style format (one file per user, multiple messages per file). I heard some of you mention Maildir and I also came across information on mbx format. It doesn't look like I would have to do much to switch over to mbx vs. Maildir. Q: Will mbx buy me performance on the toaster ? Q: Is Maildir a better choice ? Please include any other suggestions. Thanks, George ------------------------------------------------------------------------------- George Kahler e-mail: george(a)yorku.ca Systems Administrator humans: (416) 736-5257 x.22699 Computing Services, York University machines: (416) 736-5830 Ontario, Canada, M3J-1P3

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SUMMARY:Impact of adding disk to filer
by Frank Smith 15 Oct '99

15 Oct '99

Just in case anyone was curious, the consensus was that it should have little or no impact to add a disk to a volume, and that is the way it actually turned out. Physically adding the drive to the shelf froze it for 10-15 seconds, prompting my initial concern and question. The 'vol add vol0 1' command took upwards of 5 minutes to zero the disk, but the actual increase in volume size was instantaneous after the zeroing completed. There was no noticeable increase in CPU or NFS ops during the zeroing or addition (although our traffic is rather bursty in nature, but I did not see any sudden big numbers in CPU or ops). -- Frank Smith fsmith(a)hoovers.com Systems Administrator Voice: 512-374-4673 Hoover's Online Fax: 512-374-4501

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Model 1400 and Y2K
by Graham C. Knight 15 Oct '99

15 Oct '99

Does anyone know if a model 1400 can be made Y2K compliant? The NOW website does not include this model in it's list of systems that can run 5.x Thx, Graham

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Impact of adding disk to filer
by Frank Smith 15 Oct '99

15 Oct '99

What will happen if I add a disk to a volume (NetApp C720)? I learned the hard way that adding the drive to the shelf interrupted all NFS ops for 15 seconds, the docs said it would take that long to add it as a hot spare, but didn't mention that the filer would completely freeze while it did it. If I add a disk to a volume, what will it do to performance, and for how long? I don't mean long-range gains from having the data spread over more spindles, I mean what immediate impact will it have on current NFS clients. Will it just be a temporary increase in CPU as it spreads the data or will it freeze for some period of time, and if so for how long? Current sustained load on the filer is several hundred NFS ops/sec, and any pauses cause significant problems on the client systems, so I want to have a better understanding of what will happen when I give the vol add command before I actually do it. Thanks, Frank -- Frank Smith fsmith(a)hoovers.com Systems Administrator Voice: 512-374-4673 Hoover's Online Fax: 512-374-4501

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RE: Forcing a halt/reboot without "halt -d"
by David Stack 12 Oct '99

12 Oct '99

We had this same problem in the past (coincidence that we both work for the same company?) and were told that it was bug 10186. We're now running version 5.2.3D1 and haven't had the problem in a month or so. Dave **************************************************************************** ************* EMail: dstack(a)nortelnetworks.com Phone: 403-232-4752 Fax: 781-8850 ESN:765 Addr : Nortel Networks; 2924 11 St. NE; Calgary, AB; T2E 7L7;Canada **************************************************************************** ************** > -----Original Message----- > From: Luke Mewburn [SMTP:lukem@goanna.cs.rmit.edu.au] > Sent: Tuesday, October 12, 1999 8:47 AM > To: Arden, Bruce [HAL02:8883:EXCH] > Cc: toasters(a)mathworks.com > Subject: Re: Forcing a halt/reboot without "halt -d" > > "Bruce Arden" writes: > > I have just had to reboot our filer for the second time in about 3 > > months. Both times the reboot failed with the error: > > > > A CIFS I/O operation may be hung. Shutdown the system using halt > > -d > > and report this incident to NetApp. > > > > But I don't want to do a "halt -d". This causes a core dump which > > means that the filer may be down for about 10 mins. Is there a way > > of forcing a halt without using the -d switch (halt on its own just > > gives the CIFS error message again). I'm currently running 5.3.1D5. > > > > - Bruce > > > > PS The problem that caused me to reboot was that I was getting the > > error "Cannot find logon server" from PCs trying to connect to the > > filer. The reboot fixed this. Any ideas? > > A suggestion which won't solve your problems, but may help the boot > time: move savecore to the end of /etc/rc; it speeds up availability > after a boot at the potential expense of corrupting your coredump. > > PS: I have seen the ``can't halt because filer is wedged on CIFS > users'' problem on older 5.x releases (can't remember exact numbers), > but I think we've been OK since 5.3 (now running combination of > 5.3D19 and 5.3.2D4, with the latter on our more loaded systems). I > know this contradicts your experience (since you're running 5.3.1D5), > but you never know; 5.3.2Dx may have fixed something related to this. :-/

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Re: Forcing a halt/reboot without "halt -d"
by Luke Mewburn 12 Oct '99

12 Oct '99

"Bruce Arden" writes: > I have just had to reboot our filer for the second time in about 3 > months. Both times the reboot failed with the error: > > A CIFS I/O operation may be hung. Shutdown the system using halt > -d > and report this incident to NetApp. > > But I don't want to do a "halt -d". This causes a core dump which > means that the filer may be down for about 10 mins. Is there a way > of forcing a halt without using the -d switch (halt on its own just > gives the CIFS error message again). I'm currently running 5.3.1D5. > > - Bruce > > PS The problem that caused me to reboot was that I was getting the > error "Cannot find logon server" from PCs trying to connect to the > filer. The reboot fixed this. Any ideas? A suggestion which won't solve your problems, but may help the boot time: move savecore to the end of /etc/rc; it speeds up availability after a boot at the potential expense of corrupting your coredump. PS: I have seen the ``can't halt because filer is wedged on CIFS users'' problem on older 5.x releases (can't remember exact numbers), but I think we've been OK since 5.3 (now running combination of 5.3D19 and 5.3.2D4, with the latter on our more loaded systems). I know this contradicts your experience (since you're running 5.3.1D5), but you never know; 5.3.2Dx may have fixed something related to this. :-/

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Forcing a halt/reboot without "halt -d"
by Bruce Arden 12 Oct '99

12 Oct '99

I have just had to reboot our filer for the second time in about 3 months. Both times the reboot failed with the error: A CIFS I/O operation may be hung. Shutdown the system using halt -d and report this incident to NetApp. But I don't want to do a "halt -d". This causes a core dump which means that the filer may be down for about 10 mins. Is there a way of forcing a halt without using the -d switch (halt on its own just gives the CIFS error message again). I'm currently running 5.3.1D5. - Bruce PS The problem that caused me to reboot was that I was getting the error "Cannot find logon server" from PCs trying to connect to the filer. The reboot fixed this. Any ideas? -- Bruce Arden arden(a)nortelnetworks.com Nortel, London Rd, Harlow, England +44 1279 40 2877

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toasters October 1999