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RE: Filer (F740) with CIFS and NT Terminal Server Edition (Metafr ame)
by Dennis.Haag＠netapp.com 21 Jun '00

21 Jun '00

If you make absolute links (beginning with a leading slash) you need to consider how the filer is going to resolve those since the UNIX exports and CIFS shares may be coming from different paths. The /etc/symlink.translations file is used to help the filer interpret absolute symbolic links. If pchome is full of links to another directory on the filer and you use relative links you should be fine. You also need to enable symlinks with the cifs.symlinks.enable option. /vol/vol0/pchome bob -> ../home_systems/bob jim -> ../home_software/jim /vol/vol0/home_systems bob /vol/vol0/home_software jim Dennis Haag -----Original Message----- From: Moshe Linzer [mailto:moshel@taux01.nsc.com] Sent: Wednesday, June 21, 2000 8:09 AM To: toasters(a)mathworks.com Cc: David.Lockwood(a)benettonformula.com Subject: Re: Filer (F740) with CIFS and NT Terminal Server Edition (Metaframe) We are actually doing this slightly differently. The filer started out as pure Unix, so everything is using Unix security. When we added the Winframe servers (soon to move to TSE or Win2000), I found that I was able to make a CIFS Home directory on the filer: options cifs.home_dir /pchomes Then from the /pchomes directory, make symbolic links to the users actual (unix) home directory on the filer: bob -> /homes_systems/bob jim -> /homes_software/jim Now the user's home dir will be visible under TSE as \\filer\userid (assuming the same userids on NT and Unix). You can setup the user's profile on TSE to mount this path automatically upon login. The beauty is that no unix home dirs have to be changed, and no additional mounts or automounts are needed. Moshe >From owner-toasters(a)mathworks.com Wed Jun 21 14:52:50 2000 >Date: Wed, 21 Jun 2000 10:57:00 +0100 >From: "David Lockwood" <David.Lockwood(a)benettonformula.com> >To: <toasters(a)mathworks.com> >Subject: Filer (F740) with CIFS and NT Terminal Server Edition > (Metaframe) >Mime-Version: 1.0 >Content-Disposition: inline >Content-Transfer-Encoding: 8bit >X-MIME-Autoconverted: from quoted-printable to 8bit by smtp.mathworks.com id FAA02894 >Precedence: bulk > >Has anybody had any experience using a filer with NT Terminal Server Edition and Metaframe. I want to be able to have users UNIX (HP-UX 10.20) home directories on the filer and for the user to also be able to access that data from their Terminal Server (Metaframe 1.8) session. > > > >---------------------------------------------------------------------- > >For further information on Benetton Formula 1 visit our web site at www.benettonf1.com. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please destroy and notify Benetton Formula on +44 1608678000. > >---------------------------------------------------------------------- > ----------------------------------------------------------------------------- Moshe Linzer | On the Internet, Unix Systems Manager | National Semiconductor, Israel | nobody knows you're a moron. Phone: 972-9-970-2247 | Fax: 972-9-970-2001 | - Network Magazine Email: moshel(a)nsc.com | -----------------------------------------------------------------------------

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RE: CIFS file locking problem
by mark.muhlestein＠netapp.com 21 Jun '00

21 Jun '00

The way it works is that if a CIFS client has open files but no command has been received at the filer for 10 minutes, we send a keep-alive NETBIOS message. That then goes through the normal TCP timeout logic, which will normally take 520 sec or so. That means the total elapsed time for a non-responsive connection to timeout is just under 20 minutes. If you can verify that the locks are still present after more than 20 minutes, please let us know. We'll have to take a packet trace to see what is going on. Mark > -----Original Message----- > From: Dave Atkin [mailto:dla1@york.ac.uk] > Sent: Wednesday, June 21, 2000 12:41 AM > To: Muhlestein, Mark > Cc: toasters(a)mathworks.com > Subject: RE: CIFS file locking problem > > > On Mon, 19 Jun 2000 mark.muhlestein(a)netapp.com wrote: > > <cut> > > > As to the protocol issues, as Bruce said, we're more or > less stuck with them > > because of Microsoft compatibility. If a session goes away > when there is no > > request pending (i.e. we don't owe the client a response), > the filer delays 10 > > minutes before terminating the session. This is to keep the > session alive in the > > face of temporary network partitions, which we can't > distinguish from just > > losing a client. Currently that 10 minute interval is not > configurable on the > > filer, but it sounds like we might want to make it so. > > > > This 10 minute timeout doesn't seem to be working. I tried > this with my PC > yesterday. It had approx 13 locks, I turned the power off, > and after an > hour the filer still thought the locks were active. However > they have gone > this morning, after around 16 hours. We're running 5.3.5. > > -- > Dave Atkin, Head of Technical Services > Computing Service, University of York, YORK YO10 5DD > Phone: +44-1904-433804 (ddi) Fax: +44-1904-433740 > Email: D.Atkin(a)york.ac.uk >

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NFS connection from Novell Netware 5
by David Lockwood 21 Jun '00

21 Jun '00

Does anyone have experience of using a filer and NFS mounting a directory from a Novell NetWare 5 server ? Is it as simple as adding the NFS client to Netware 5 and following the normal NFS mount process ---------------------------------------------------------------------- For further information on Benetton Formula 1 visit our web site at www.benettonf1.com. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please destroy and notify Benetton Formula on +44 1608678000. ----------------------------------------------------------------------

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Re: Filer (F740) with CIFS and NT Terminal Server Edition (Metaframe)
by Moshe Linzer 21 Jun '00

21 Jun '00

We are actually doing this slightly differently. The filer started out as pure Unix, so everything is using Unix security. When we added the Winframe servers (soon to move to TSE or Win2000), I found that I was able to make a CIFS Home directory on the filer: options cifs.home_dir /pchomes Then from the /pchomes directory, make symbolic links to the users actual (unix) home directory on the filer: bob -> /homes_systems/bob jim -> /homes_software/jim Now the user's home dir will be visible under TSE as \\filer\userid (assuming the same userids on NT and Unix). You can setup the user's profile on TSE to mount this path automatically upon login. The beauty is that no unix home dirs have to be changed, and no additional mounts or automounts are needed. Moshe >From owner-toasters(a)mathworks.com Wed Jun 21 14:52:50 2000 >Date: Wed, 21 Jun 2000 10:57:00 +0100 >From: "David Lockwood" <David.Lockwood(a)benettonformula.com> >To: <toasters(a)mathworks.com> >Subject: Filer (F740) with CIFS and NT Terminal Server Edition > (Metaframe) >Mime-Version: 1.0 >Content-Disposition: inline >Content-Transfer-Encoding: 8bit >X-MIME-Autoconverted: from quoted-printable to 8bit by smtp.mathworks.com id FAA02894 >Precedence: bulk > >Has anybody had any experience using a filer with NT Terminal Server Edition and Metaframe. I want to be able to have users UNIX (HP-UX 10.20) home directories on the filer and for the user to also be able to access that data from their Terminal Server (Metaframe 1.8) session. > > > >---------------------------------------------------------------------- > >For further information on Benetton Formula 1 visit our web site at www.benettonf1.com. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please destroy and notify Benetton Formula on +44 1608678000. > >---------------------------------------------------------------------- > ----------------------------------------------------------------------------- Moshe Linzer | On the Internet, Unix Systems Manager | National Semiconductor, Israel | nobody knows you're a moron. Phone: 972-9-970-2247 | Fax: 972-9-970-2001 | - Network Magazine Email: moshel(a)nsc.com | -----------------------------------------------------------------------------

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Backup Technology
by Derek Kelly 21 Jun '00

21 Jun '00

Has anyone on the list had experience (good or bad) using Overland Data SANPiper (a SCSI-to-Fibre Channel bridge technology) or Vixel switches in thier backup strategy? If so, please let me know. We are looking at implementing one of these solutions and are interested in any opinions or possible caveats we might hit. Thanks, Derek Kelly Genomecorp [dkelly(a)genomecorp.com - CSSG] If you can't beat your computer at chess, try kickboxing.

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Re: Filer (F740) with CIFS and NT Terminal Server Edition (Metaframe)
by bhaskar.g＠philips.com 21 Jun '00

21 Jun '00

Hi, We are using such a setup from long time. You create a qtree or directory /vol/volname/home where all the home directories resides. Then you access the home directories throught the automounter maps as userid filer:/vol/volname/home/& Then set an option on the filer cifs.home_dir /vol/volname/home/ This works fine if the userid of the unix and NT matches or else you may have to edit the /etc/usermap.cfg. kind regards Bhaskar G Philips Semiconductors, #3, Sterling Square,Madras Bank Road, Off St Mark's Road,BANGALORE-560 001. Voice : +91 80 222 9200 Ext 5060 Fax: +91 80 2229700 David.Lockwood@benettonformula.com@SMTP@mathworks.com on 06/21/2000 04:45:27 PM Sent by: owner-toasters(a)mathworks.com To: toasters@mathworks.com@SMTP cc: Subject: Filer (F740) with CIFS and NT Terminal Server Edition (Metaframe) Classification: Restricted Has anybody had any experience using a filer with NT Terminal Server Edition and Metaframe. I want to be able to have users UNIX (HP-UX 10.20) home directories on the filer and for the user to also be able to access that data from their Terminal Server (Metaframe 1.8) session. ---------------------------------------------------------------------- For further information on Benetton Formula 1 visit our web site at www.benettonf1.com. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please destroy and notify Benetton Formula on +44 1608678000. ----------------------------------------------------------------------

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Re: Filer (F740) with CIFS and NT Terminal Server Edition (Metaframe)
by Rune Bakken 21 Jun '00

21 Jun '00

"David Lockwood" <David.Lockwood(a)benettonformula.com> writes: > Has anybody had any experience using a filer with NT Terminal Server > Edition and Metaframe. I want to be able to have users UNIX (HP-UX > 10.20) home directories on the filer and for the user to also be > able to access that data from their Terminal Server (Metaframe 1.8) > session. There is two ways (at least) to do this: 1* Map "local" drives in the ICA Client, that enables the ICA Client to read files on the mounted filesystem on the HP-UX boxen 2* Use CIFS on the filer, and make shares for each user that are accessed by the Terminal Server >>>>>>>>>>>>.rune PS! is 12000 NFS ops on an F740 a lot? -- Rune Bakken System Administrator Nextra, a Telenor Company

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Filer (F740) with CIFS and NT Terminal Server Edition (Metaframe)
by David Lockwood 21 Jun '00

21 Jun '00

Has anybody had any experience using a filer with NT Terminal Server Edition and Metaframe. I want to be able to have users UNIX (HP-UX 10.20) home directories on the filer and for the user to also be able to access that data from their Terminal Server (Metaframe 1.8) session. ---------------------------------------------------------------------- For further information on Benetton Formula 1 visit our web site at www.benettonf1.com. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please destroy and notify Benetton Formula on +44 1608678000. ----------------------------------------------------------------------

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Tape libraries
by Gordon Keegan 21 Jun '00

21 Jun '00

The only supported tape drive, stacker and library chart that I can find on NOW is dated 11/98 and doesn't seem to list much beyond DLT4000, DLT4700, and DLT7000. Is there a newer list of supported tape equipment somewhere? Thanks! -- Gordon Keegan, M10-10 Phone: (508) 261-4696 Motorola ING Fax: (508) 261-5757 20 Cabot Boulevard Mansfield, MA 02048 email: lgk011(a)dma.isg.mot.com

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RE: CIFS file locking problem
by mark.muhlestein＠netapp.com 21 Jun '00

21 Jun '00

The underlying problem may be due to a timing bug in the Microsoft client (MS has acknowledged the bug; their answer is "upgrade to Windows 2000") This is seen more on filers than NT server because we are so much faster doing opens. We have a workaround, which is to enforce a small delay before breaking the oplock on oplocked files that are re-opened. This is controlled by an option, "cifs.oplocks.opendelta". It defaults to 8 ms which works well for most clients, but it sounds like you might want to try increasing it. The "cifs stat" console command has a value "OpLkBkNoBreakAck" which gets incremented if this problem is seen. If you have non-zero values for this, try increasing the opendelta to 16 and see if things get better. As to the protocol issues, as Bruce said, we're more or less stuck with them because of Microsoft compatibility. If a session goes away when there is no request pending (i.e. we don't owe the client a response), the filer delays 10 minutes before terminating the session. This is to keep the session alive in the face of temporary network partitions, which we can't distinguish from just losing a client. Currently that 10 minute interval is not configurable on the filer, but it sounds like we might want to make it so. Mark Muhlestein -- mmm(a)netapp.com > -----Original Message----- > From: Dave Atkin [mailto:dla1@york.ac.uk] > Sent: Friday, June 16, 2000 3:39 AM > To: toasters(a)mathworks.com > Cc: AB Smith > Subject: CIFS file locking problem > > > We have a problem with file locking which occurs every few > months. We have > finally worked out at least part of what is happening. > > We have a Windows 95 system filestore exported as a read-only > CIFS share. > There are 1200 or so PCs which access this. > > Just occasionally when a user launches the Telnet client (Hummingbird) > it complains that it can't access its keyboard mapping file. Once this > starts to happen, it is the same for every PC. A unix user > running as root > can't read or do anything to this file either - it gets "permission > denied". > > Yesterday when this happened we used (rc_toggle_basic) lock_dump -f > to look at the locks, and we found that a PC appeared to have > taken out an > exclusive read lock on the file: > > ========00003a31:0006b48e > \95APPLIB\york.hts > state=GRANTED mode=Excl-denyA host=OFFICE1 > > When we found the PC called "office1", it was turned off. The > user said it > had hung up and she had switched it off. > > We managed to restore normal service by doing a > "cifs terminate -t 0 office1". > > This raises several issues: > > 1) If a CIFS client is switched off, is there any sort of > keepalive timer > on the Filer that closes down open files and locks? > > 2) Should a PC with read-only access to a filestore be allowed to lock > files for exclusive read? Should this perhaps be an option on > a qtree or > share? > > 3) This particular application obviously doesn't expect this > file to be > shared. But could any malicious user take out locks on random > important > files and freeze the whole network? > > Dave Atkin > -- > Dave Atkin, Head of Technical Services > Computing Service, University of York, YORK YO10 5DD > Phone: +44-1904-433804 (ddi) Fax: +44-1904-433740 > Email: D.Atkin(a)york.ac.uk >

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