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Permissions problem with CVS
by Clarke, John L. (CIS) 06 Nov '00

06 Nov '00

Hello, We ran into a weird problem last week. We moved several CVS directories from a SunOS server to our NetApp F740. When a user went to check in a file that had been originally created by another user, the final mv of the file caused a "rename: Permission Denied" message. We went into the directory in question and did some experiments. I can copy the file to a new name, create a new file, and do a "mv newfile oldfile", and it works. However, if I try to do the same thing with the actual files being worked on, the mv newfile oldfile gives me the same "rename: Permission Denied" message. The qtree is configured for mixed CIFS/NFS permissions, but all the file moves have been from the Unix side via NFS. We are thinking of changing the qtree settings to NFS only. Looking for a cure, John

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FS: Netapp 4gb SCSI Narrow disks (Model X212) - $75.00
by ScottUCE＠aol.com 06 Nov '00

06 Nov '00

Netapp 4gb SCSI narrow disk (Model X212) w/ 90-day warranty -- $75.00 Netapp disk shelf w/ single power supply, SCSI cable and power cord -- $195.00. PACKAGE DEAL: SEVEN 4gb disks (28gb total) with shelf -- $595.00 Scott Fischmann Union Computer Exchange, Inc. 6233 Idylwood Lane Minneapolis, MN 55436 (952) 935-7282 (952) 935-5056 - FAX www.unioncomputer.com

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Clustering
by Davinder Gupta 06 Nov '00

06 Nov '00

Hi, We are looking into using filers in Windows NT 4 Enterprise environment. In this environment filers will be serving Oracle databases. We are conerned if MS supports this environment with NT4 or may be with Win2K advanced server. Any thoughts?? Thanks Davinder

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RE: Exchange 2k
by Mankovsky, Mike 06 Nov '00

06 Nov '00

Both Exchange 5.5 and Exchange 2000 use 4KB pages to store data in the Exchange database. There are very few Exchange database related files that are "small" An empty Exchange database file is 1 to 2 MB and a typical size of an Exchange database file is well over 10GB. Exchange transaction logs are always 5MB, regardless if they are full or not. The smallest Exchange database file that would reside on a filer is the Check Point file, which is 8KB. Regards, Mike Mankovsky Network Appliance Inc. -----Original Message----- From: Steve Losen [mailto:scl@sasha.acc.virginia.edu] Sent: Monday, November 06, 2000 6:48 AM To: toasters(a)mathworks.com Subject: Re: Exchange 2k > Waste of space? Maybe. NetApp uses 4K blocks so if you > have lots of really small files <4K then you'll waste > quite a bit of space. > > Supak > All files potentially waste space, regardless of size. With a block size of 4k, you can expect each file to waste an average of 2k. A 17k file uses 5 blocks (20k) of which 3k is wasted. A 15k file uses 4 blocks (16k) of which 1k is wasted. So the amount of storage wasted is roughly the number of files multiplied by 2k bytes. Divide this by the total disk space used to get the percentage of space wasted. I just checked one of our volumes that contains user home directories. It has 3680867 files and 146203264K used, which means about 5% is wasted. Steve Losen scl(a)virginia.edu phone: 804-924-0640 University of Virginia ITC Unix Support

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Re: Exchange 2k
by Supak backup e-mail account 06 Nov '00

06 Nov '00

NetApp filer is fully supported for use with MS Exchange. I don't see how this could lead to a problem more than any direct-attaced storage. NetApp choking on lots of small files? I don't think so. WAFL handles small files far better than most file systems notably UFS. Waste of space? Maybe. NetApp uses 4K blocks so if you have lots of really small files <4K then you'll waste quite a bit of space. Supak --- Martin Hannigan <hannigan(a)world.std.com> wrote: > > > > > > For both performance and supportability reasons, > it is extremely inadvisable > > to put Exchange mailboxes/private stores/public > stores on anything other > > than a filesystem which is directly-connected to > the NT server in question. > > > > People do all sorts of odd things with NetApps > just because they can - and > > don't get me wrong, I love my F740 - but this is > just plain crazy. For your > > own peace of mind, don't do it. > > > So the netapp still chokes on lots of active small > files i.e. like > usenet news, etc? We were thinking about turning > ours into a hardcore > news spool..but I remember a few years ago there was > some issue with the > millions of < 64KB file sizes.. > > -M > __________________________________________________ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one Place. http://shopping.yahoo.com/

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Re: rsh return code
by Rick Hulsey 06 Nov '00

06 Nov '00

The problem with looking to get a return code is that there are really 2 programs running at the same time (rsh and the actual remotely executed program). The way rsh is designed the return code that you will see is coming from rsh. It's just a measurement of whether rsh was able to establish a connection to the remote system or not. In a nutshell, rsh does return 0 or 1 based on success or failure but rsh really has no view of the results of the program on the remote system. To do this, you need a more robust messaging capability like you might find in middleware products MQ, Tibco, etc, and these products can't run on filers. Another alternative is to capture and parse the output from the snap create command with the script that is calling rsh to create the snapshot. Rick Hulsey Southwest Airlines 2425 Wyman Mail Stop 4DC Dallas, Tx., 75235 rick.hulsey(a)wnco.com (214) 792-7188 Office (972) 880-6882 Cell (800) 915-3747 Pager >>> Brian Tao <taob(a)risc.org> 11/05/00 01:45PM >>> Probably a dumb question, but I just had a gigantic Sunday brunch buffet, so my brain is halfway into a food coma. ;-) Is it possible to have rsh return 0 or 1 depending on the success of a command executed on a filer? For instance, I want my backup scripts to kick off a "snap create" before they proceed, but I want to check the exit status of the rsh so I have a chance to abort and notify the operator if the snapshot is not created. -- Brian Tao (BT300, taob(a)risc.org) "Though this be madness, yet there is method in't"

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News Importance (Was: RE: Exchange 2k)
by Fox, Adam 06 Nov '00

06 Nov '00

Let's not assume that news is low priority in everyone's environment. Yes, in typical shops, News is low-priority. But let's say you're a big ISP who has a few million paying customers and one of the things they pay for is to read news. Now news becomes a bit more important. Or let's say you're a web site that provides a searchable archive for News articles. Now that data becomes business critical. One man's junk data is another man's gold. Just a bit of perspective. -- Adam Fox NetApp Professional Services, NC adamfox(a)netapp.com > -----Original Message----- > From: Mohler, Jeff [mailto:jeff.mohler@netapp.com] > Sent: Saturday, November 04, 2000 1:40 PM > To: 'Brian Tao'; Martin Hannigan > Cc: toasters(a)mathworks.com > Subject: RE: Exchange 2k > > > > Is news so important to you that you would put it on a filer? > That's one thing I stick to JBOD... price out two terabytes of usable > storage on 50GB or 72GB drives in decent enclosures over U2SCSI or > FibreChannel, and compare it to an F760 with the same amount of space. > If you're concerned with performance of millions of small files, > switch to a different storage model... it will almost certainly be > cheaper than a big Netapp. > -- > > > Or switch to a more efficient method of running news (IE: Highwind). >

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RE: rsh return code
by Fox, Adam 06 Nov '00

06 Nov '00

I don't think rsh works that way..at least not to my experience. In my quick testing, rsh returns 0 if it successfuly runs a command on the filer, whether or not it's even a valid command, it succeeded to do what you asked. It returns 1 if the rsh fails, such as permission denied, connection timed out, etc. Feel free to let me know if someone has seen differently. You may want to capture the output and parse it to check if the command succeeded or failed...just a thought. -- Adam Fox NetApp Professional Services, NC adamfox(a)netapp.com > -----Original Message----- > From: Brian Tao [mailto:taob@risc.org] > Sent: Sunday, November 05, 2000 2:46 PM > To: toasters(a)mathworks.com > Subject: rsh return code > > > Probably a dumb question, but I just had a gigantic Sunday brunch > buffet, so my brain is halfway into a food coma. ;-) Is it possible > to have rsh return 0 or 1 depending on the success of a command > executed on a filer? For instance, I want my backup scripts to kick > off a "snap create" before they proceed, but I want to check the exit > status of the rsh so I have a chance to abort and notify the operator > if the snapshot is not created. > -- > Brian Tao (BT300, taob(a)risc.org) > "Though this be madness, yet there is method in't" >

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RE: ndmpcopy error message
by Krause, Oliver 05 Nov '00

05 Nov '00

You provided no password. Try: ndmpcopy netmmc:/vol/vol1/projects/nguc netmmc:/vol/vol2/nguc -sa root:<password-source-filer> -da root:<password-dest-filer> The root password is the one you use to login when you telnet to the filer ... Oliver -----Original Message----- From: Manny Kaiser [mailto:mkaiser@mmcnet.com] Sent: Sonntag, 5. November 2000 14:38 To: toasters(a)mathworks.com Subject: ndmpcopy error message I get the following error message when trying to use the ndmpcopy command (latest version 1.2) on a F840 running 5.3.6H1R2. The command and error messages are: ndmpcopy netmmc:/vol/vol1/projects/nguc netmmc:/vol/vol2/nguc Password: Connecting to netmmc. Connecting to netmmc. init: error sending NDMP_MOVER_LISTEN message: Error: Connection has not been authorized On the Netapp console I get: Nov 05 06:27:21 [ndmpd:33]: Top level IOException Nov 05 06:27:21 [ndmpd:34]: Top level IOException Nov 05 06:27:21 [ndmpd:33]: IO exception: Socket closed. Nov 05 06:27:21 [ndmpd:34]: IO exception: Socket closed. Any ideas?

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ndmpcopy error message
by Manny Kaiser 05 Nov '00

05 Nov '00

I get the following error message when trying to use the ndmpcopy command (latest version 1.2) on a F840 running 5.3.6H1R2. The command and error messages are: ndmpcopy netmmc:/vol/vol1/projects/nguc netmmc:/vol/vol2/nguc Password: Connecting to netmmc. Connecting to netmmc. init: error sending NDMP_MOVER_LISTEN message: Error: Connection has not been authorized On the Netapp console I get: Nov 05 06:27:21 [ndmpd:33]: Top level IOException Nov 05 06:27:21 [ndmpd:34]: Top level IOException Nov 05 06:27:21 [ndmpd:33]: IO exception: Socket closed. Nov 05 06:27:21 [ndmpd:34]: IO exception: Socket closed. Any ideas?

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