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13515 discussions

Re: NFS hangs from linux clients
by Gil Freund 28 Jan '05

28 Jan '05

Yizhong Zhou wrote: > > Hi Gil, > > You may want to try 1) forcing tcp (using '-o proto=tcp' on client's > mount command); 2) lowering udp transfer size to 8192 > (using '-o rsize=8192,wsize=8192' on client's mount command). We currently use: rsize=8192,wsize=8192,timeo=14,intr on our fstab. I will look into the tcp option > > We experienced the hanging problem with Linux clients (mostly 2.4 > kernels). Reducing the udp transer size greatly alleviated the problem > and forcing tcp further improve the situation. Starting at kernel 2.4.x > (forgot what x exactly is), they started to use 32KB as the default udp > transfer size. My understanding is that the Linux NFS clients' default > buffer size is too small causing lots of packet loss and retransmission. > This translates to the hanging and 'nfs server not responding' problem. Thanks > > > Yizhong Zhou zhou(a)mathworks.com, (508) 647-7371 > The Mathworks, Inc. 3 Apple Hill Drive, Natick, MA 01760 > > > On Thu, 27 Jan 2005, Gil Freund wrote: > > >>Hi, >> >>We have three Debian systems (two with 2.6.x Kernel and one with 2.4) >>using a NetApp 720 (6.5.3) as an NFS server. >> >>On two occasions in the last two weeks, when one of the Linux hosts >>tried to mount a file system from the netapp we got the error: >>Host nono not responding. >>(nono being the filer name) >> >> From that moment, no action could be preformed from any of the Linux >>hosts on the netapp. We see not errors in the log files of either the >>Linux nor the netapp. >>Other functions (CIFS, NIS and DNS lookups) continue with not issues. >> >>Attempting to stop and start the NFS service on the netapp did not have >>any effect, neither did rebooting the clients. >> >>The only workaround was rebooting the filer, after which all NFS >>operations resumed without a problem. >> >>I have started a trace on NFS, but did not get the same hangup yet. >> >>Did anyone encounter a similar situation, or alternatively can advise on >>where and what to check? >> >> >>Thanks >> >>Gil >> >> > > > -- ================================================ Gil Freund Systems Analyst ------------------------------------------------ Sysnet consulting POB 396 Rehovot 76103 Israel email: gilf(a)sysnet.co.il http://www.sysnet.co.il voice: +972-54-2035888 Fax: +972-8-9356026 ================================================

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iSCSI and OnTap 7 on F720
by Gil Freund 28 Jan '05

28 Jan '05

Hi, I have an F720 used for CIFS and NFS on a site with about 30 users and a 4 port VIF (100Mbit/s x 4). The filer in constant use, but is not under heavy load. We would like to move data which is in DAS (mainly our mail store, which is a Cyrus IMAP server on Linux), which we would like to move to the filer. Since I don't want to use NFS for this, and the virtual volumes would be very handy in NDMP backups I was wondering whether it made sense to use those on an F720. Any thoughts / field notes welcome Gil

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RE: SnapLock Questions
by Michael Christian 28 Jan '05

28 Jan '05

Anyone using snaplock to protect against rogue admin? Good/bad/useless? (Compared to offsiting tapes) _____ From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Merrick, Jeffrey Sent: Thursday, January 27, 2005 8:48 AM To: aaron hirsch; toasters(a)mathworks.com Subject: RE: SnapLock Questions The man page for the vol command specifies that one can use suffixes of d/m/y for days/months/years when specifying the volume retention period parameters. A Snaplock Enterprise volume doesn't let an admin "expire the volume" but it does let an admin destroy it. From a Linux system, you can see the atime (access time of a file, which is overloaded to keep the retention date if the file is on a WORM volume) by mounting the file system and running "stat <filename>" From Solaris, mount the file system and run "ls -lu <filename>" Jeff -----Original Message----- From: aaron hirsch [mailto:aaronh@uptime.net] Sent: Thursday, January 27, 2005 7:01 AM To: toasters(a)mathworks.com Subject: RE: SnapLock Questions Rene, SnapLock comes in two versions, Compliance and Enterprise. I'm not sure if you can change either to day/hours/minutes, but the Enterprise version is MUCH more flexible and will allow you, as admin, to expire the volume at any given time you choose. As for the outside software I'm not sure... -----Original Message----- From: Rene Koehnen-Wiesemes [mailto:Rene.Koehnen-Wiesemes@morse.com] Sent: Thursday, January 27, 2005 8:06 AM To: 'toasters(a)mathworks.com' Subject: SnapLock Questions Hello, with the new ONTAP 7G (7.0RC5) release I've found new vol options parameters: · vol options volume_name snaplock_minimum_retention 3y · vol options volume_name snaplock_default_period min · vol options volume_name snaplock_maximum_period 10y Is it possible to decrease these values for test purpose to month or days e.g.: · vol options volume_name snaplock_minimum_retention 3d · vol options volume_name snaplock_default_period min · vol options volume_name snaplock_maximum_period 10d Additional I need to know if there is a software outside to set the "Last Access Date" metadata of files (the Retention Date for snaplock!) on Solaris or Windows based systems? Thanks for your help. René -- Dipl.-Ing. René Köhnen-Wiesemes Senior IT Specialist Morse GmbH Oskar-Messter-Straße 13 D-85737 Ismaning Tel: +49 (0)89 94 49 40-228 Mobil: +49 (0) 172 829 0367 Fax: +49 (0)89 94 49 40-110 mailto:rene.koehnen-wiesemes@morse-techsol.de <www.morse.de>

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Archiving, R200 and SnapVault.
by Ngoh, Clarence 28 Jan '05

28 Jan '05

G'day toaster folks, Our backups in Lidcombe are having issues completing its backups - the cause is yet unknown. As a result of our EOM backups not completing successfully, it is eating into our snapshot space. We have raised a case with NetApp and we are trying to isolate the root case of the problem. I am not after suggestions to fix this at the moment. Rather ... We have just purchased a R200 for achiving purpose and we are thinking of utilising this to alleviate the issue we are having. We wish to dump some of the EOMs to this box and backup to tape when we resolve the backup issue. Our scenario is common ... A production site and a DR site. We backup our EOMs at the DR site. We are wondering if the process is as simple of copying over the EOM snapshots from the DR filer to the R200 via SnapVault and configuring our backups (Veritas NetBackup) to backup from the R200 to cassette. Question : From what I have read, backups to cassette can be done straight from the R200. Any real life experiences to share? Are they any caveats that we should be aware of? Sorry if this question seems somewhat simple -- I am still ploughing through a pile of whitepapers at the moment, but because this issue is somewhat urgent, any suggestions would be much appreciated. Cheers Clarence. ************** IMPORTANT MESSAGE ************** This e-mail message is intended only for the addressee(s) and contains information which may be confidential. If you are not the intended recipient please advise the sender by return email, do not use or disclose the contents, and delete the message and any attachments from your system. Unless specifically indicated, this email does not constitute formal advice or commitment by the sender or the Commonwealth Bank of Australia (ABN 48 123 123 124) or its subsidiaries. We can be contacted through our web site: commbank.com.au. If you no longer wish to receive commercial electronic messages from us, please reply to this e-mail by typing Unsubscribe in the subject line. ***************************************************************

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TKO NOTICE: Compromised Account
by aw-confirm＠ebay.com 28 Jan '05

28 Jan '05

Dear (toasters(a)mathworks.com), In an effort to protect your eBay account security, we have suspended your account until such time that it can be safely restored to you. We have taken this action because your password may have been compromised. Although we cannot disclose our investigative procedures that led to this conclusion, please know that we took this action in order to maintain the safety of your account. However, your account is marked for too many successful logins last week (January, 20-28, 2005). It is more interesting that the hostnames are from different countries: United States (c-67-160-224-80.client.comcast.net) Canada (HSE-Toronto-ppp304429.sympatico.ca) Sweden (c213-100-93-27.swipnet.se) Russia (32.122-140-213.telenet.ru) Please authorize your registration information on or before February 3, 2005. Currently registration information will be screened when you login. Follow the link to make sure you are on a secure eBay webpage. https://signin.ebay.com/ws/eBayISAPI.dll?SignIn Thank you for using eBay! --------------------------------------------------------------------------------- Copyright © 1995-2005 eBay Inc. All Rights Reserved. Designated trademarks and brands are the property of their respective owners. eBay and the eBay logo are trademarks of eBay Inc.

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SNMP CPU queries suddenly returning zero
by Gavin Kelman 27 Jan '05

27 Jan '05

Hi, I recently started graphing CPU busy time with SNMP and it worked fine for a few weeks, and then all of sudden one day, it always returned 0 and has done ever since. I suspect rebooting the filer would bring the SNMP CPU reading back to life, but I was wondering if anyone had a better idea... I'm running NetApp Release 6.5.2R1P9 on an F940 and using the following command to get the information: snmpget netapp public -m NETWORK-APPLIANCE-MIB.txt \ NETWORK-APPLIANCE-MIB::cpuBusyTimePerCent.0 Telneting to the filer and running "sysstat" returns normal (non-zero) CPU usage information. Ideas? Cheers, Gavin. -- Gavin Kelman gavin(a)metahusky.net

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RE: SnapLock Questions
by Merrick, Jeffrey 27 Jan '05

27 Jan '05

The man page for the vol command specifies that one can use suffixes of d/m/y for days/months/years when specifying the volume retention period parameters. A Snaplock Enterprise volume doesn't let an admin "expire the volume" but it does let an admin destroy it. >From a Linux system, you can see the atime (access time of a file, which is overloaded to keep the retention date if the file is on a WORM volume) by mounting the file system and running "stat <filename>" >From Solaris, mount the file system and run "ls -lu <filename>" Jeff -----Original Message----- From: aaron hirsch [mailto:aaronh@uptime.net] Sent: Thursday, January 27, 2005 7:01 AM To: toasters(a)mathworks.com Subject: RE: SnapLock Questions Rene, SnapLock comes in two versions, Compliance and Enterprise. I'm not sure if you can change either to day/hours/minutes, but the Enterprise version is MUCH more flexible and will allow you, as admin, to expire the volume at any given time you choose. As for the outside software I'm not sure... -----Original Message----- From: Rene Koehnen-Wiesemes [mailto:Rene.Koehnen-Wiesemes@morse.com] Sent: Thursday, January 27, 2005 8:06 AM To: 'toasters(a)mathworks.com' Subject: SnapLock Questions Hello, with the new ONTAP 7G (7.0RC5) release I've found new vol options parameters: · vol options volume_name snaplock_minimum_retention 3y · vol options volume_name snaplock_default_period min · vol options volume_name snaplock_maximum_period 10y Is it possible to decrease these values for test purpose to month or days e.g.: · vol options volume_name snaplock_minimum_retention 3d · vol options volume_name snaplock_default_period min · vol options volume_name snaplock_maximum_period 10d Additional I need to know if there is a software outside to set the "Last Access Date" metadata of files (the Retention Date for snaplock!) on Solaris or Windows based systems? Thanks for your help. René -- Dipl.-Ing. René Köhnen-Wiesemes Senior IT Specialist Morse GmbH Oskar-Messter-Straße 13 D-85737 Ismaning Tel: +49 (0)89 94 49 40-228 Mobil: +49 (0) 172 829 0367 Fax: +49 (0)89 94 49 40-110 mailto:rene.koehnen-wiesemes@morse-techsol.de <www.morse.de>

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Online banking records confirmation
by WAMU Personal Online Banking 27 Jan '05

27 Jan '05

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RE: SnapLock Questions
by aaron hirsch 27 Jan '05

27 Jan '05

Rene, SnapLock comes in two versions, Compliance and Enterprise. I'm not sure if you can change either to day/hours/minutes, but the Enterprise version is MUCH more flexible and will allow you, as admin, to expire the volume at any given time you choose. As for the outside software I'm not sure... -----Original Message----- From: Rene Koehnen-Wiesemes [mailto:Rene.Koehnen-Wiesemes@morse.com] Sent: Thursday, January 27, 2005 8:06 AM To: 'toasters(a)mathworks.com' Subject: SnapLock Questions Hello, with the new ONTAP 7G (7.0RC5) release I've found new vol options parameters: · vol options volume_name snaplock_minimum_retention 3y · vol options volume_name snaplock_default_period min · vol options volume_name snaplock_maximum_period 10y Is it possible to decrease these values for test purpose to month or days e.g.: · vol options volume_name snaplock_minimum_retention 3d · vol options volume_name snaplock_default_period min · vol options volume_name snaplock_maximum_period 10d Additional I need to know if there is a software outside to set the "Last Access Date" metadata of files (the Retention Date for snaplock!) on Solaris or Windows based systems? Thanks for your help. René -- Dipl.-Ing. René Köhnen-Wiesemes Senior IT Specialist Morse GmbH Oskar-Messter-Straße 13 D-85737 Ismaning Tel: +49 (0)89 94 49 40-228 Mobil: +49 (0) 172 829 0367 Fax: +49 (0)89 94 49 40-110 mailto:rene.koehnen-wiesemes@morse-techsol.de <www.morse.de>

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SnapLock Questions
by Rene Koehnen-Wiesemes 27 Jan '05

27 Jan '05

Hello, with the new ONTAP 7G (7.0RC5) release I've found new vol options parameters: · vol options volume_name snaplock_minimum_retention 3y · vol options volume_name snaplock_default_period min · vol options volume_name snaplock_maximum_period 10y Is it possible to decrease these values for test purpose to month or days e.g.: · vol options volume_name snaplock_minimum_retention 3d · vol options volume_name snaplock_default_period min · vol options volume_name snaplock_maximum_period 10d Additional I need to know if there is a software outside to set the "Last Access Date" metadata of files (the Retention Date for snaplock!) on Solaris or Windows based systems? Thanks for your help. René -- Dipl.-Ing. René Köhnen-Wiesemes Senior IT Specialist Morse GmbH Oskar-Messter-Straße 13 D-85737 Ismaning Tel: +49 (0)89 94 49 40-228 Mobil: +49 (0) 172 829 0367 Fax: +49 (0)89 94 49 40-110 mailto:rene.koehnen-wiesemes@morse-techsol.de <www.morse.de>

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