toasters

toasters@lists.teaparty.net

3 participants
13525 discussions

RE: oplock problems
by Muhlestein, Mark 04 Apr '01

04 Apr '01

We've seen clients that didn't work properly unless the opendelta was set to 20 or more. If that fixes the issue and it's just on a few clients you might consider changing the NIC on those clients. If increasing opendelta doesn't help this could be a networking issue, so you might want to get a packet trace and if necessary open a case with customer support to get it analyzed. The disadvantage of disabling oplocks is that the clients can't do any caching, which can cause a noticeable performance impact, depending on your application mix. Mark -----Original Message----- From: Matt Graham [mailto:mgraham@resgen.com] Sent: Wednesday, April 04, 2001 7:58 AM To: Muhlestein, Mark; toasters Subject: Re: oplock problems I already did increase the value to 12, which didn't seem to help and seemed to make the problem computers take longer. I can try raising it higher if that will help. What are the disadvantages of running with oplocks disabled? "Muhlestein, Mark" wrote: > > Have you tried increasing the cifs.oplocks.opendelta parameter? If not, you might try a value like 16 or even 20 to see if it makes a difference. That is a hidden option which works around a bug in certain NIC/driver client setups. It is a timing issue which is seen if the server responds too quickly with an oplock break after a file is opened. The problem is not frequently seen with NT server because it is so much slower when handling opens. > > Mark Muhlestein -- NetApp CIFS engineering > > -----Original Message----- > From: Matt Graham [mailto:mgraham@resgen.com] > Sent: Tuesday, April 03, 2001 7:01 PM > To: toasters > Subject: oplock problems > > Hello, > > I have been having oplock break time outs, and I can't seem to isolate the > cause of the problem. It is only certain clients that are experiencing the > problem. One of the clients seemed to be fixed when I moved it from the switch > that it was on to a hub (which doesn't make any sense, and may be coincidental) > > Also, I never noticed these problems before we converted to a fully switched > network > > The clients are win98 and nt4. I am running NetApp Release 5.3.6R2. > > I am now running with oplocks disabled, but it seems like a poor solution to me. > > Any help appreciated, > Matt

1 0

Re: oplock problems
by Matt Graham 04 Apr '01

04 Apr '01

I already did increase the value to 12, which didn't seem to help and seemed to make the problem computers take longer. I can try raising it higher if that will help. What are the disadvantages of running with oplocks disabled? "Muhlestein, Mark" wrote: > > Have you tried increasing the cifs.oplocks.opendelta parameter? If not, you might try a value like 16 or even 20 to see if it makes a difference. That is a hidden option which works around a bug in certain NIC/driver client setups. It is a timing issue which is seen if the server responds too quickly with an oplock break after a file is opened. The problem is not frequently seen with NT server because it is so much slower when handling opens. > > Mark Muhlestein -- NetApp CIFS engineering > > -----Original Message----- > From: Matt Graham [mailto:mgraham@resgen.com] > Sent: Tuesday, April 03, 2001 7:01 PM > To: toasters > Subject: oplock problems > > Hello, > > I have been having oplock break time outs, and I can't seem to isolate the > cause of the problem. It is only certain clients that are experiencing the > problem. One of the clients seemed to be fixed when I moved it from the switch > that it was on to a hub (which doesn't make any sense, and may be coincidental) > > Also, I never noticed these problems before we converted to a fully switched > network > > The clients are win98 and nt4. I am running NetApp Release 5.3.6R2. > > I am now running with oplocks disabled, but it seems like a poor solution to me. > > Any help appreciated, > Matt

1 0

RE: RMA follow-up
by Palmer, Jason (London) 04 Apr '01

04 Apr '01

I recently had an RMA for the dodgy NVRAM card batch... Network Appliance opened a case, and I updated this at every stage after seeing this note... I had to go to Germany from the UK to swap the part and it took a good 2-3 Weeks... Not one call at all... they probaby read the case updates and let me get on with it !!! JP -----Original Message----- From: Scott Mikusko [mailto:guerilla@concentric.net] Sent: 23 January 2001 21:58 To: Jim Harm Cc: 'NetApps list server' Subject: Re: RMA follow-up Heh, yes they do get a little pushy don't they? I noticed this first when they went to SonicAir for their RMA management. The few times where I've had a part shipped to me, it wasn't an RMA, but still got the thugs on the phone telling me to complete the return. "It's not an RMA you guys, it was a new part shipped with NO return needed!" Then they back off. You could do that. :) -Scott On Tue, 23 Jan 2001, Jim Harm wrote: > Does someone know how to get them to call off the dogs. > I get strangers calling me asking me where the RMA return is, > before it gets delivered to my office. > It takes me about a week to schedule the downtime and another > week to get the old part out of shipping. > These people call me and threaten to charge me for a part after > 10 days. > > I've got work to do that does not include finding out what number and > shipper that department used to return the part and I am really getting > bugged by the continuing and threatening calls from strangers. > If they just wait, they will turn up on the loading dock at NetApp. > > I've called NetApp sales, RMA team at NetApp, NetApp support, > and now I'll try you. > Someone must know a secret word to tell them to LAYOFF! > -- > }}}===============>> LLNL > James E. Harm (Jim); jharm(a)llnl.gov > System Administrator Compaq Clusters > (925) 422-4018 Page: 423-7705x57152 > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Scott T. Mikusko Maybe this world is another planet's hell. Systems Engineer XO Communications, Inc. - Aldous Huxley formerly Concentric Network -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

1 0

ONTAP v 6.1
by Palmer, Jason (London) 04 Apr '01

04 Apr '01

I have recently upgraded to ONTAP v6.1 on out F760s 2 x clustered and 1 x Non clustered... It appears to work extreemly well and I ahve had no problems so far... ...it has some neat little features, and the dismounting of volumes without a reboot makes things a lot easier. Anyone else gone to 6.1 yet ? If so, had any problems at all ? Jason Palmer WorldCom Server Engineering and Design Group

1 0

Re: oplock problems
by Matt Graham 04 Apr '01

04 Apr '01

We are running cisco switches, but I don't think that changing the switches is an option. mike linett wrote: > > Hi Matt: > > What kind of switch are you using? We ran into a bunch of problems with > a Cisco switch recently in a very high traffic environment. Try a > straight cut through switch ...At this point it seems that an Extreme > switch solved our problem... > > Mike > > Matt Graham wrote: > > > > Hello, > > > > I have been having oplock break time outs, and I can't seem to isolate the > > cause of the problem. It is only certain clients that are experiencing the > > problem. One of the clients seemed to be fixed when I moved it from the switch > > that it was on to a hub (which doesn't make any sense, and may be coincidental) > > > > Also, I never noticed these problems before we converted to a fully switched > > network > > > > The clients are win98 and nt4. I am running NetApp Release 5.3.6R2. > > > > I am now running with oplocks disabled, but it seems like a poor solution to me. > > > > Any help appreciated, > > Matt > > -- > Michael Linett - President > http://www.zerowait.com PH 888.811.0808 > High Availability Network Solutions > Featuring Network Appliance Filers & NetCache > Load Balancing, NetScreen Firewalls & VPN > Zerowait is a Network Appliance Registered Service Provider

1 0

RE: performance question ablout oracle on F840 filer
by Lenzer, Mike 04 Apr '01

04 Apr '01

Bryan, What "tunings" did you apply to NFS, Filer, etc. ? Check below for some recommended values. Simply comparing filer ops is not a good measure of performance. For example: setting nfs mount options in /etc/vfstab to hard, intr, suid, rsize=32738, wsize=32768, proto=udp, vers=3 (which is a known good configuration), will result in "lower" nfs ops than say using r/wsize=8192, but your thruput will be the same or better. If I read you specs right, you're using 1xFC9 shelf for 2 volumes ? Assuming you are using the recommended spare disk, you max. number of spindles for say vol0 would be 4. The WAFL filesystem improves in performance with increasing number of spindles. Try moving the index's over to vol0, delete vol1 and expand vol0 by 2 or more disks. In a small volume environment, performance will be enhanced by placing just the online redo logs onto your local drive. Once you have more spindles you can place them on a seperate volume on the filer and mount them over your 2nd GbE link. It is ideal to seperate sequential writes (such as redo logs) from random i/o over a separate GbE link and separate volume. To ensure your problem isn't the GbE connection, try testing for raw thruput of data by issuing a "dd if=/dev/zero of=/toaster/test bs=32k" command. Then umount and remount the filer mount point (to avoid local caching) and read it back. If the numbers are low, you may have a duplex-mismatch and need to ensure auto-negotiation is enabled for the NICs in the E3500. Needless to say, ensure Solaris 2.7 has the latest patches applied and the F840 is using at least Data ONTAP 6.0.1R3 or better Data ONTAP 6.1 which is at FCS on http://now.netapp.com <http://now.netapp.com> Also consult the Technical Reports below for further information: http://www.netapp.com/tech_library/3047.html <http://www.netapp.com/tech_library/3047.html> http://www.netapp.com/tech_library/3105.html <http://www.netapp.com/tech_library/3105.html> /M/ Michael Lenzer Oracle TME Network Appliance Inc. 495 East Java Dr Sunnyvale, CA 94089 USA -----Original Message----- From: brynay_cradle [mailto:bryany@cradle.com.tw] Sent: Tuesday, April 03, 2001 11:30 PM To: toasters Subject: performance question ablout oracle on F840 filer Hi , My customer setup oracle 8.15 on sun E3500 (Solaris.7) and put oracle database on filer F840 , but performance is poor. Hardware environment as Filer 840 Giga Ethernet II * 2 FC9 disk shelf * 1 about 350 GB Sun E3500 (Solaris.7) Cpu 1 ~ 4 memory 1 GB giga Ethernet * 2 ( direct to filer ) configuration as oracle database on /vol/vol0 use e6 giga ethernet channel oracle index on /vol/vol1 use e7 giga ethernet channel load data to database table about 70000 records , filer ops 1000 ~ 2000 sun 1 cpu usage 30% ~ 40% even add to 4 cpu (20% ~ 30%, never over 50%) , oracle process speed still slow , ops increase just to 2500 ~ 3000 it seems filer wait for sun process oracle data , but I can not increase cpu load I tuned filer and sun , gigaethernet and nfs configurations already , but performance do not get better. Could you kind to provide any suggestion or solution for this case Thanks a lots Cradle Technology Corp. Infrastructure Integration Department Bryan Yuan Tel: (886) 2 87682688 Ex: 634 bryany(a)cradle.com.tw <mailto:bryany@cradle.com.tw>

1 0

performance question ablout oracle on F840 filer
by brynay_cradle 04 Apr '01

04 Apr '01

Hi , My customer setup oracle 8.15 on sun E3500 (Solaris.7) and put oracle database on filer F840 , but performance is poor. Hardware environment as Filer 840 Giga Ethernet II * 2 FC9 disk shelf * 1 about 350 GB Sun E3500 (Solaris.7) Cpu 1 ~ 4 memory 1 GB giga Ethernet * 2 ( direct to filer ) configuration as oracle database on /vol/vol0 use e6 giga ethernet channel oracle index on /vol/vol1 use e7 giga ethernet channel load data to database table about 70000 records , filer ops 1000 ~ 2000 sun 1 cpu usage 30% ~ 40% even add to 4 cpu (20% ~ 30%, never over 50%) , oracle process speed still slow , ops increase just to 2500 ~ 3000 it seems filer wait for sun process oracle data , but I can not increase cpu load I tuned filer and sun , gigaethernet and nfs configurations already , but performance do not get better. Could you kind to provide any suggestion or solution for this case Thanks a lots Cradle Technology Corp. Infrastructure Integration Department Bryan Yuan Tel: (886) 2 87682688 Ex: 634 bryany(a)cradle.com.tw

1 0

RE: Remote Dump error
by Neil Stichbury 04 Apr '01

04 Apr '01

What happens if you just command an mt rewind ?. Have you tried leaving the blocking-factor as default ?. Neil -----Original Message----- From: Kunihiko.Motoyoshi [mailto:Kunihiko.Motoyoshi@ctc-g.co.jp] Sent: Wednesday, 4 April 2001 12:13 To: Cormier, Darleen Cc: 'Colm Buckley'; toasters(a)mathworks.com Subject: Re: Remote Dump error Thank you for ALL. We tested use our F540 and 4mmDAT that work fine. Problem is We can not duplicate user's problem. Becouse dose work here. I will try to make a more time for this. Thank you, -pon "Cormier, Darleen" wrote: > > Yeh, yeh, I blew it, should have had a cup of coffee before I answered that. Sorry all > > -----Original Message----- > From: Colm Buckley [mailto:colm@tuatha.org] > Sent: Tuesday, April 03, 2001 10:02 AM > To: toasters(a)mathworks.com > Subject: Re: Remote Dump error > > > == Darleen Cormier <Darleen.Cormier(a)netapp.com> > > > The dump utility on a NetApp filer can only move data to a tape > > drive which is directly attached to a filer. It can not move data to > > a tape d rive which is attached to a Sun server. > > What? > > It works fine here - all you need is to have the remote shell daemon > (rshd) running on the Sun box, with the NetApp filer allowed to run > commands as root ("netapp.network root" in root's .rhosts file). > > Alternatively, you could do something like: > > rsh netapp dump 0u / > /dev/rmt/0 > > - the output of the netapp's 'dump' command will be sent to standard > output, which goes to the tape drive. Note that you won't be able to > run multi-tape dumps like this. > > Colm > > -- > Colm Buckley, NewWorld Commerce, 16 South Cumberland St., Dublin 2, Ireland. > Personal: +353 87 2469146 / colm(a)tuatha.org / http://www.tuatha.org/~colm/ > Business: +353 1 4334334 / colm(a)nwcgroup.com / http://www.nwcgroup.com/ > Indecision is the key to flexibility. -- Kunihiko Motoyoshi Phone:+81-3-3649-4937 / Fax:+81-3-3649-6425 Storage Group / Technical Support Dept. CTC Technology This e-mail message has been scanned and cleared by MailMarshal http://www.gen-i.co.nz This e-mail message has been scanned and cleared by MailMarshal http://www.gen-i.co.nz

1 0

oplock problems
by Matt Graham 04 Apr '01

04 Apr '01

Hello, I have been having oplock break time outs, and I can't seem to isolate the cause of the problem. It is only certain clients that are experiencing the problem. One of the clients seemed to be fixed when I moved it from the switch that it was on to a hub (which doesn't make any sense, and may be coincidental) Also, I never noticed these problems before we converted to a fully switched network The clients are win98 and nt4. I am running NetApp Release 5.3.6R2. I am now running with oplocks disabled, but it seems like a poor solution to me. Any help appreciated, Matt

1 0

RE: Remote Dump error
by Cormier, Darleen 04 Apr '01

04 Apr '01

Yeh, yeh, I blew it, should have had a cup of coffee before I answered that. Sorry all -----Original Message----- From: Colm Buckley [mailto:colm@tuatha.org] Sent: Tuesday, April 03, 2001 10:02 AM To: toasters(a)mathworks.com Subject: Re: Remote Dump error > == Darleen Cormier <Darleen.Cormier(a)netapp.com> > The dump utility on a NetApp filer can only move data to a tape > drive which is directly attached to a filer. It can not move data to > a tape d rive which is attached to a Sun server. What? It works fine here - all you need is to have the remote shell daemon (rshd) running on the Sun box, with the NetApp filer allowed to run commands as root ("netapp.network root" in root's .rhosts file). Alternatively, you could do something like: rsh netapp dump 0u / > /dev/rmt/0 - the output of the netapp's 'dump' command will be sent to standard output, which goes to the tape drive. Note that you won't be able to run multi-tape dumps like this. Colm -- Colm Buckley, NewWorld Commerce, 16 South Cumberland St., Dublin 2, Ireland. Personal: +353 87 2469146 / colm(a)tuatha.org / http://www.tuatha.org/~colm/ Business: +353 1 4334334 / colm(a)nwcgroup.com / http://www.nwcgroup.com/ Indecision is the key to flexibility.

2 1

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

toasters