toasters March 1999

toasters@lists.teaparty.net

138 participants
192 discussions

RE: nightly.1 busy: snapshot rollovers not happening
by Benn, Paul 13 Apr '99

13 Apr '99

Yes, there's a sample script (batch file) that can be scheduled with the AT service. Here's a snippet from section 5.2 of the doc: Once the filer and Windows NT have been setup, schedule a batch process using the Windows NT "at" command. The following batch file, which uses NT Backup, is included as a reference: REM In this example, 'filer5' will be used as the name of the filer REM The qtree is called 'qtmixed,' which resides on a single REM volume filer. The default volume name is vol0. REM REM Delete the snapshot created by the previous run of this process rsh filer5 -l root snap delete vol0 openfiles REM REM Turn off oplocks, telling clients to release the file rsh filer5 -l root qtree oplocks qtmixed disable REM REM Create a snapshot directory called openfiles rsh filer5 -l root snap create vol0 openfiles REM REM Re-enable oplocks rsh filer5 -l root qtree oplocks qtmixed enable REM REM Map a drive letter to the filer's root share net use f: \\filer5\c$ REM REM Run the backup command - in this example NTBackup. REM Notice that '~snapshot' is used instead of '.snapshot' start /normal /b ntbackup backup f:\dir\~snapshot\ /hc:on /t normal REM End of file The above batch file (less the last few lines, launching a backup command) could also be used as a pre-job process with almost any Windows NT backup package. -----Original Message----- From: Mark Muhlestein [mailto:mmm@netapp.com] Sent: Monday, March 01, 1999 10:56 AM To: toasters(a)mathworks.com Subject: Re: nightly.1 busy: snapshot rollovers not happening The best way to do this is to create a special snapshot specifically for the backup, then delete it when the backup completes. This avoids the problem of the snapshot being changed out from under you. And this can all be automated with scripts. See Paul Benn's message for a pointer to a description of how to do this. Mark Muhlestein -- mmm(a)netapp.com -----Original Message----- From: Patrick.Day.B(a)bayer.com <Patrick.Day.B(a)bayer.com> To: - (052)toasters(a)mathworks.com <toasters(a)mathworks.com>; - (052)tmerrill(a)mathworks.com <tmerrill(a)mathworks.com> Date: Monday, March 01, 1999 10:48 AM Subject: Re: nightly.1 busy: snapshot rollovers not happening >I ran across this same problem when i shared the Nightly.0 for backup >purposes. When the nightly.0 rolls over to the Nightly.1, the CIFS share keeps >track and actually keeps the share mapped to nightly.1. (same thing next night >when it rolls over to nightly.3). I posted the problem a few weeks ago and the >only "solution" anyone could come up with was running an rsh command to stop >and recreate the share every time the backup runs. I opted to forget the >snapshot directory backup and go with a live backup of the C$\ share.

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Re: Anybody using the NetCache software? (fwd)
by Luke Gain 01 Apr '99

01 Apr '99

> > As to performance; the software is pretty good. > Benchmarks that HP performed show that NetCache-HPUX > runs about 8X faster than Squid on FreeBsd. > Wow...that tells us alot(NOT)...How about NetCache vs Squid on the SAME box/os. -Luke

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Diagrams..Visio et-al...
by Mohler, Jeff 31 Mar '99

31 Mar '99

Anyone know of a simple figure I can toss into Visio to represent a F760 (or any other filer for that matter).

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RE: NAC SAN
by mds＠gbnet.net 30 Mar '99

30 Mar '99

On Tue 30 Mar, 1999, "Adams, Christian" <Adams_Christian(a)emc.com> wrote: > Hey Dave Hitz - > <tongue-in-cheek> Hey Christian Adams. Is there an EMC-specific mailing list we can all join and be obnoxious on? Please? </tongue-in-cheek> Otherwise please alter how you frame your contributions so they're less irritating to read. I find that you're coming across with a very arrogant tone which, I'm sorry to say, precludes my giving you, or your company, much credence. The same comes across in EMC marketing and interviews in the press so perhaps it's one of those go-get-'em, can-do, East coast culture things. It's one of the reasons I enjoy talking to NetApp folk - they're almost always willing to listen rather than butting in, and almost always very considered in their replies and statements. > > Loved your EMC bit, > /Christian Adams > EMC > >-- End of excerpt from "Adams, Christian"

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RE: Server Manager
by Muhlestein, Mark 30 Mar '99

30 Mar '99

Oliver is right that you have to be an administrator, but there is no need to be "root" for server manager. You have to be in the filer's BUILTIN\Administrator group. By default, the "Domain Admins" group for the domain the filer is installed into is the only member of BUILTIN\Administrators. You can add others as needed using user manager and specifying "\\filer" as the domain to work on. Mark Muhlestein -- mmm(a)netapp.com -----Original Message----- From: Oliver Krause [mailto:okrause@netapp.com] Sent: Tuesday, March 30, 1999 1:03 PM To: 'Bernard Westwood'; toasters(a)mathworks.com Subject: RE: Server Manager Hi, first ensure that your user is a domain admin. If you are in the group "Domain Admins" but you are not DOMAIN\Administrator the edit the file /etc/usermap.cfg in the root volume and map your user to root. Then cifs terminate/restart and it should be possible to access the filers for your user. Oliver > -----Original Message----- > From: owner-dl-toasters(a)netapp.com > [mailto:owner-dl-toasters@netapp.com]On Behalf Of Bernard Westwood > Sent: Dienstag, 30. März 1999 22:33 > To: toasters(a)mathworks.com > Subject: Server Manager > > > When accessing Server Manager on a NT Server running 4.0 and > NetApp Data > OnTap 5.2.1 does anyone know why "Access Denied" comes up > when any of the > NetApp servers are selected? > > >

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Server Manager
by Bernard Westwood 30 Mar '99

30 Mar '99

When accessing Server Manager on a NT Server running 4.0 and NetApp Data OnTap 5.2.1 does anyone know why "Access Denied" comes up when any of the NetApp servers are selected?

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RE: NAC SAN
by Sam Schorr 30 Mar '99

30 Mar '99

Yes, I realize there are tremendous hurdles. It will also take a vendor who builds their own solution ala Network Appliance, or even Sun. They would have to marry it to specific OS/hardware (Sun could "easily" do this, while Netapp would have to sell the internal fibre or SCSI card to go in the server as well as the disk arrays). All that aside, there would be no point if the current network technologies make it unnecessary to separate the two very different traffic requirements. I believe, though, that such an offering would hold tremendous value to large sites, particularly as virtual sites on the internet increase (many servers/services appearing as one). -----Original Message----- From: tkaczma(a)gryf.net [mailto:tkaczma@gryf.net] Sent: Monday, March 29, 1999 5:55 PM To: 'toasters(a)mathworks.com' Subject: RE: NAC SAN On Mon, 29 Mar 1999, Sam Schorr wrote: > Why not a box with a special OS (ala WAFL) that runs on what servers > recognize as a fibre hub, intercepts the SCSI calls from all attached > servers, and does all the nifty stuff needed to make the SAN(?) look like > locally attached storage? Advantage? Separate file I/O from TCP session > traffic but still allow file sharing in some form or another. I thought about this, but if you really want to take it to the extreme, then the switch has to know exactly how it is used. Imagine any "erver" box that uses mirroring or striping. Unless you know exactly how data is placed you won't be able to recognize how the filesystem looks. Then there is caching. Usually systems don't worry about cache coherency on locally attached storage. The assume (fairly correctly too) that they are the only ones using the storage. Tom

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Re: sm_recover messages?
by mds＠gbnet.net 30 Mar '99

30 Mar '99

Yeah. mv the files aside, delete them or truncate them to 0 bytes with cat </dev/null > [file] Don't, whatever you do, put spurious characters in them, you'll crash your filer. Bugs have been logged for both the problem and the sm file crashes and fixes are in the pipe. Can you tell we suffer(ed) from both these problems? 8) The problem arises when clients with open mounts (and probably locks on files) quietly go away, followed by the filer itself rebooting and trying to fond those now-dead clients. It never gives up unless you butcher the sm/* files, carefully! Hope that helps.

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Re: NAC SAN
by mds＠gbnet.net 30 Mar '99

30 Mar '99

On Tue 30 Mar, 1999, James Lowe <jlowe(a)iguard.com> wrote: > mark wrote: > (note spelling of Fibre - someone let an English chappy > > into the protocol definition committee) > > nope...french I always stand ready to be corrected. However, from http://www.fcloop.org/FC/FAQs/fcfaq1.htm Q: Why does Fibre Channel spell fiber as fibre? Fibre Channel was originally designed to support fiber optic cabling only. When copper support was added to its feature set some years ago, an ISO (International Standards Organization) task force decided not to rename the technology. The committee decided to change the spelling of Fiber, to the French spelling Fibre, to reduce the association as a fiber optics only medium, while maintaining the name recognition of the Fibre Channel technology. I think the McGraw hill book says that it was the persuasion of an Englishman that lead to that choice being made. This is so wonderfully nitpicky! If someone can provide the committee names we can be absolutely sure. 8) > > : ) > >-- End of excerpt from James Lowe

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sm_recover messages?
by Anthony Fiarito 30 Mar '99

30 Mar '99

We are getting a bunch of: Tue Mar 30 17:59:13 GMT [sm_recover]: no address for host <host.somedomain.com> messages on a few of our filers. Anyone know of a (safe) way to get rid of them? The hostname and IP do not exist in /etc/hosts or /etc/exports. Would removing /etc/sm/* get rid of these messages? Thanks, -alf --- Anthony Fiarito Critical Path

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toasters March 1999