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13514 discussions

FW: Cannot delete folder in volume.
by Maglinger, Paul 07 Feb '02

07 Feb '02

My apologies, I should have provided more detail. This is not a set up as a share, however it was a home directory for a user. -----Original Message----- From: Kumar, Rahul [mailto:Rahul.Kumar@sdrc.com] Sent: Thursday, February 07, 2002 11:17 To: Maglinger, Paul Subject: RE: Cannot delete folder in volume. Hi Paul, If this is a explicit CIFS share then you have to unshare this shared folder from the Server manager and then delete it. Let me know if this helps. Rahul ----------- Rahul Kumar EDS PLM Solutions - EIT (Pune-India) Rahul.Kumar(a)sdrc.com Work: 91-20-2930812 -----Original Message----- From: Maglinger, Paul [mailto:PMAGLINGER@scvl.com] Sent: Thursday, February 07, 2002 10:28 PM To: 'NetApps list server' Subject: Cannot delete folder in volume. I can't delete a folder in one of my volumes. I'm trying to delete it from Windows Explorer and I get an error that, "Cannot remove folder blahblah. There has been a sharing violation. The source or destination file may be in use." I have checked the CIFS sessions and check Server Manager, and neither one of these shows that it is in use. Any thoughts (short of stopping and re-starting CIFS) on how I can free this up to delete it? Thanks! Remember, you are unique... just like everyone else! Paul Maglinger, A+, CA, CET, MCSE Systems Administrator Shoe Carnival Inc. (812)867-4674 pmaglinger(a)scvl.com

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Cannot delete folder in volume.
by Maglinger, Paul 07 Feb '02

07 Feb '02

I can't delete a folder in one of my volumes. I'm trying to delete it from Windows Explorer and I get an error that, "Cannot remove folder blahblah. There has been a sharing violation. The source or destination file may be in use." I have checked the CIFS sessions and check Server Manager, and neither one of these shows that it is in use. Any thoughts (short of stopping and re-starting CIFS) on how I can free this up to delete it? Thanks! Remember, you are unique... just like everyone else! Paul Maglinger, A+, CA, CET, MCSE Systems Administrator Shoe Carnival Inc. (812)867-4674 pmaglinger(a)scvl.com

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RE: Oracle and snapshots - how are you using it?
by Mitko Blazeski 07 Feb '02

07 Feb '02

You could always do a hot backup of the database if you dont want to take it offline. Check the whitepapers http://www.netapp.com/tech_library/3130.html#4.2. Regards Mitko Blazeski -----Original Message----- From: Art Hebert [mailto:art@arzoon.com] Sent: den 7 februari 2002 03:17 To: 'toasters(a)mathworks.com' Subject: Oracle and snapshots - how are you using it? We haven't implemented snapshots because we have a single volume and it hasn't been manageable. We now have budget to buy some more disk shelves and want to move our database files to another volume and snap this. In looking at white papers on the Netapp site it leads me to beleive that I need to stop the db and snap and then restart. I would like to just run a snap every 15 minutes without stopping the db, so I can always fall back to a previous snapshot, can or are any of you doing this? thanks Art Hebert Email: art(a)arzoon.com <mailto:art@arzoon.com> Arzoon IT Dept. Phone: 650 995-6125 Mobile: 650 444-8667

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Cant access PST File
by Jennifer Armenta 07 Feb '02

07 Feb '02

Having strange errors with accessing PST files on a CIFS volume. Some users can't access their PST while other can. If we move the problematic users PST to their local PC then all works ok so it's make the Netapp Filer (F840) part of the issue. Anyone experience this? I have checked into issues with NT & Win2k which the NOW indicates hw to fix these issues but we are not seeing those problems. Jennifer

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Oracle and snapshots - how are you using it?
by Art Hebert 07 Feb '02

07 Feb '02

We haven't implemented snapshots because we have a single volume and it hasn't been manageable. We now have budget to buy some more disk shelves and want to move our database files to another volume and snap this. In looking at white papers on the Netapp site it leads me to beleive that I need to stop the db and snap and then restart. I would like to just run a snap every 15 minutes without stopping the db, so I can always fall back to a previous snapshot, can or are any of you doing this? thanks Art Hebert Email: art(a)arzoon.com <mailto:art@arzoon.com> Arzoon IT Dept. Phone: 650 995-6125 Mobile: 650 444-8667

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RE: Slow write performance
by Edward Hibbert 06 Feb '02

06 Feb '02

Thanks to all of you who replied. Various people pointed me at statit as the particularly useful tool for spotting what's going on. I have two volume groupings, one with 3 disks, and one with 4. My data is only on one of those volume groups, and statit clearly shows the usage on the relevant disks being very high, up to the point where I'm thrashing the cache on the filer. So I'll split my data across both volume groups, which should give me better throughput. Thanks again, Edward. > Disk statistics (over 31 seconds) > ut% is the utilization % of the disk; > chain is avg number of 4K blocks/op; > usecs is round trip time to disk in microseconds per 4K block. > > disk ut% xfers/s urds/s chain usecs cwrs/s chain usecs crds/s chain > usecs > 8.0 93 171.12 118.70 1.06 5711 26.90 3.45 2213 25.51 1.70 > 2592 > 8.1 90 168.80 114.54 1.04 5843 28.09 3.16 2433 26.16 1.71 > 3163 > 8.2 0 0.38 0.00 0.00 0 0.38 3.16 1605 0.00 0.00 > 0 > 8.3 28 79.06 0.25 1.00 9500 38.35 4.08 1340 40.45 1.73 > 1112 > 8.4 90 170.70 118.45 1.05 5771 27.80 3.11 2359 24.45 1.69 > 3009 > 8.5 0 0.67 0.19 1.00 3833 0.19 3.83 1565 0.29 1.22 > 1545 > 8.6 0 0.61 0.12 1.00 7750 0.35 2.81 1580 0.12 1.75 > 1428

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RE: Slow write performance
by Knight, Jason 06 Feb '02

06 Feb '02

It might also be helpful to know how many disks are in the raid group. 2? 10? Apologies if it was mentioned earlier. How much NVRAM? Jason -----Original Message----- From: Kumar, Rahul [mailto:Rahul.Kumar@sdrc.com] Sent: Wednesday, February 06, 2002 12:48 PM To: Chris Thompson; Mike Ball; Edward Hibbert Cc: toasters(a)mathworks.com Subject: RE: Slow write performance Hi All, I think in this case if he could use sysstat -x 1 he would get a output kinda like this which might help diaganosing further... filer1> sysstat -x 1 CPU NFS CIFS HTTP Total Net kB/s Disk kB/s Tape kB/s Cache Cache CP CP Disk in out read write read write age hit time ty util 2% 55 12 0 67 19 21 24 0 0 0 >60 99% 0% - 2% 8% 150 9 0 159 31 33 112 1309 0 0 >60 100% 15% T 15% 1% 21 4 0 25 28 30 0 0 0 0 >60 100% 0% - 0% 3% 132 0 0 132 1 1 0 0 0 0 >60 100% 0% - 0% 4% 97 71 0 168 26 30 0 0 0 0 >60 100% 0% - 0% 2% 91 0 0 91 36 21 0 0 0 0 >60 100% 0% - 0% 2% 57 20 0 77 14 17 32 0 0 0 >60 96% 0% - 4% 4% 172 10 0 182 31 33 0 0 0 0 >60 100% 0% - 0% 1% 18 4 0 22 31 33 0 0 0 0 >60 100% 0% - 0% filer1> ----------- Rahul Kumar EDS PLM Solutions - EIT (Pune-India) Rahul.Kumar(a)sdrc.com Work: 91-20-2930812 -----Original Message----- From: Chris Thompson [mailto:cet1@cus.cam.ac.uk] Sent: Wednesday, February 06, 2002 9:26 PM To: Mike Ball; Edward Hibbert Cc: toasters(a)mathworks.com Subject: Re: Slow write performance MBall(a)datalink.com (Mike Ball) writes > > I not sure I would be concerned about the 0's on disk writes you are > seeing. As long as Net KB keeps coming in/out. The Netapp may be > recalculating parity and holding the writes in NVRAM before it flushes to > disk, etc.. He should be worried about there being too *few* 0's! As anyone who has done a "sysstat 1" (or just watched the pretty lights on the discs :-]) knows, ONTAP does disk writes in bursts (CPs). It will do a CP about once every 11 seconds unless NVRAM gets half-full (or some other exceptional condition happens) first. Edward's CP's seem to be taking about 5-6 seconds each: that's definitely not normal. If he could do "sysstat -u" (presumably the reason he can't is that he is still on ONTAP 5.x), then he would see something like 50% in the "CP time" column. The cache age being stuck down at 1 minute all the time doesn't look healthy either. It may be that the disc read traffic is what is making the CPs take so long. That's an effect I have observed during dumps when obviously there is a lot of read traffic, but the CP-expansion is not usually as extreme as in this case. Chris Thompson University of Cambridge Computing Service, Email: cet1(a)ucs.cam.ac.uk New Museums Site, Cambridge CB2 3QH, Phone: +44 1223 334715 United Kingdom.

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RE: vol0 question
by Mike Sphar 06 Feb '02

06 Feb '02

I just want to say for the record that we've had vol0 on our filers be 100% full several times and our filers have never crashed because of it, at least not any time I can recall. Not that vol0 being full is a good thing, of course, but it's always been recoverable in my experience without a crash. -- Mike Sphar - Sr Systems Administrator - Engineering Support Peregrine Systems, Inc. -----Original Message----- From: Jim Harm [mailto:jharm@llnl.gov] Sent: Tuesday, February 05, 2002 1:23 PM To: toasters(a)mathworks.com Subject: Re: vol0 question An argument for isolating root volume is that we are still warned in the netapp admin classes that if the root volume gets full, the filer will crash. We can build qtress to limit client to just under 100% or we can reserve 1% snap and turn off snaps. But will either of those really work? Will the filer potentially crash on a full volume even if it is not root volume? At 6:12 AM -0800 2/5/02, Jeff Kennedy wrote: >I don't disagree but this seems to be a paradigm of the past. With the >R100 out, and OT 6.2 comming soon, the limitations are quickly >disappearing. Currently I plan to just snapmirror volumes to the R100, >but with 6.2 I plan to create volumes in the 1TB+ range and snapmirror >the qtrees (everything we do is in qtrees). I used to be a volume nazi >for probably the same reasons you mention (no volume was to *ever* get >above 400GB's non-snapshot), now I don't see that as a problem anymore. >I have no issues with volumes going past 1TB if this works as >advertised, and I have no reason to think it won't. > >So, do you still think vol0 should be seperate? And don't give me the >"That's the way we've always done it..." routine :-] Keep in mind the >R100 does mostly archival, backup/restore, and misc funtions like db >exports and IT tool storage, not traditional production stuff. > >~JK > >Chris Blackmor wrote: >> >> Jeff, >> I personally don't like active data on vol0. In the past I have >> put archive data on vol0 because it is low impact. I happen to >> be a little more paranoid than some but that is just me and we >> have been bitten before by putting highly volatile on the root volume. >> Chris >> >> On Mon, Feb 04, 2002 at 02:02:14PM -0800, Jeff Kennedy wrote: >> > Now that the R100 has come out I was wondering what people think of the >> > seperate vol0 concept? In the old days it wasn't quite so bad; ok, so >> > you wasted a 4gb drive or maybe even an 18gb drive. But now we're >> > looking at tossing a 136gb drive for what? Squat really. >> > >> > So what's the new thought on this? Do you not waste the disk on a >> > seperate vol0 and just keep tight reigns on qtrees? Or is there still >> > an argument for vol0 on it's own? >> > >> > Thanks. >> > -- >> > ===================== >> > Jeff Kennedy >> > Unix Administrator >> > AMCC >> > jlkennedy(a)amcc.com >> >> -- >> ---------------------------------------------------------------------------- - >> * | When you're throwin' your * >> * Chris Blackmor _______ | weight around, * >> * Advanced Micro Devices \____ | | be ready to have it * >> * Phone: (512) 602-1608 /| | | | thrown around by * >> * Fax: (512) 602-5155 | |___| | | somebody else. * >> * Email: chris.blackmor(a)amd.com |____/ \| | Author Unknown* >> ---------------------------------------------------------------------------- - >> * My comments are mine, and mine alone. * >> ---------------------------------------------------------------------------- - > >-- >===================== >Jeff Kennedy >Unix Administrator >AMCC >jlkennedy(a)amcc.com -- }}}===============>> LLNL James E. Harm (Jim); jharm(a)llnl.gov System Administrator Compaq Clusters (925) 422-4018 Page: 423-7705x57152

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exports questions
by neil lehrer 06 Feb '02

06 Feb '02

ontap 6.1.1r2 nfs, cifs, nis, nt4 domain 1. i run both nfs and cifs and i find it easier to edit the exports file from the cifs side. but sometimes things get odd afterwards. what does the parser not like that gets in when using windows editors? i have looked with a hex editor and haven't seen anything unusual. couldn't find anything in NOW knowledgebase. 2. i set up an exports entry using the fully qualified domain name for a host with root access. after i exportfs -a and then do an exportfs the listing comes back with just the hostname, no domain tagged on. is this normal behavior? thanks. -- regards +++++++++++++++++++++++++++++++++++++++++++++++++ + Neil Lehrer + + United States International Broadcasting Bureau + System Development Division + + voice 202 619-2524 + fax 202 619-3576 + nlehrer(a)ibb.gov + + " is this crisis an opportunity or just + another grab the fire extinguisher moment?" + +++++++++++++++++++++++++++++++++++++++++++++++++

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RE: Slow write performance
by Kumar, Rahul 06 Feb '02

06 Feb '02

Hi All, I think in this case if he could use sysstat -x 1 he would get a output kinda like this which might help diaganosing further... filer1> sysstat -x 1 CPU NFS CIFS HTTP Total Net kB/s Disk kB/s Tape kB/s Cache Cache CP CP Disk in out read write read write age hit time ty util 2% 55 12 0 67 19 21 24 0 0 0 >60 99% 0% - 2% 8% 150 9 0 159 31 33 112 1309 0 0 >60 100% 15% T 15% 1% 21 4 0 25 28 30 0 0 0 0 >60 100% 0% - 0% 3% 132 0 0 132 1 1 0 0 0 0 >60 100% 0% - 0% 4% 97 71 0 168 26 30 0 0 0 0 >60 100% 0% - 0% 2% 91 0 0 91 36 21 0 0 0 0 >60 100% 0% - 0% 2% 57 20 0 77 14 17 32 0 0 0 >60 96% 0% - 4% 4% 172 10 0 182 31 33 0 0 0 0 >60 100% 0% - 0% 1% 18 4 0 22 31 33 0 0 0 0 >60 100% 0% - 0% filer1> ----------- Rahul Kumar EDS PLM Solutions - EIT (Pune-India) Rahul.Kumar(a)sdrc.com Work: 91-20-2930812 -----Original Message----- From: Chris Thompson [mailto:cet1@cus.cam.ac.uk] Sent: Wednesday, February 06, 2002 9:26 PM To: Mike Ball; Edward Hibbert Cc: toasters(a)mathworks.com Subject: Re: Slow write performance MBall(a)datalink.com (Mike Ball) writes > > I not sure I would be concerned about the 0's on disk writes you are > seeing. As long as Net KB keeps coming in/out. The Netapp may be > recalculating parity and holding the writes in NVRAM before it flushes to > disk, etc.. He should be worried about there being too *few* 0's! As anyone who has done a "sysstat 1" (or just watched the pretty lights on the discs :-]) knows, ONTAP does disk writes in bursts (CPs). It will do a CP about once every 11 seconds unless NVRAM gets half-full (or some other exceptional condition happens) first. Edward's CP's seem to be taking about 5-6 seconds each: that's definitely not normal. If he could do "sysstat -u" (presumably the reason he can't is that he is still on ONTAP 5.x), then he would see something like 50% in the "CP time" column. The cache age being stuck down at 1 minute all the time doesn't look healthy either. It may be that the disc read traffic is what is making the CPs take so long. That's an effect I have observed during dumps when obviously there is a lot of read traffic, but the CP-expansion is not usually as extreme as in this case. Chris Thompson University of Cambridge Computing Service, Email: cet1(a)ucs.cam.ac.uk New Museums Site, Cambridge CB2 3QH, Phone: +44 1223 334715 United Kingdom.

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