toasters

toasters@lists.teaparty.net

13514 discussions

13 Dec '02

<MÒ> dq[LÐ ¡ãALð²ó]³êÈ¢ûÍ±±Ö info_ssy(a)yahoo.co.jp Kž{¶É ÈœÌ[AhXÌÝðš«º³¢ =============================================================== ÐÌåÈLÍð©µÜ¹ñ©I zMÆ±©çz[y[W»ìÜÅiÀÉÄšó¯vµÜ·B ºLe`wÉÄš\µÝº³¢B =============================================================== §104-0061 sæâÀ8-19-3 æ2ECOr@3F [}KWs TEL@03-3544-6222 FAX@03-3544-6218@@ =============================================================== âè€iÎ©èWßÜµœBÁ³êé°êª èÜ·ÌÅ š\ÝÍšßÉI ================================================================= \\\\\\\\\\\\\\\\\\\\\\\\ rfIÌEÁê_b`CtErlNu @@ `ujDåWEðÛErdwthEA_gObYÈÇ @A_gÖAÌîñÚ@ @@š\ÝE²¶E€iÚ×Í@ @@@@@ºLtqkðNbNµÄ²º³¢B «@@@@«@@@@«@ @@@http://www.xx-koukoku.com/ \\\\\\\\\\\\\\\\\\\\\\\\ @@J^ObYEÉéîñEhÆObYEà×¯îñÈÇ@ @@@@@@@@@@»ÌŒîñÚ@ @@š\ÝE²¶E€iÚ×Í@ @@@@@ºLtqkðNbNµÄ²º³¢B «@@@@«@@@@«@ http://www.ww-koukoku.com/ \\\\\\\\\\\\\\\\\\\\\\\\

1 0

cloning of filer config
by Thorsten.Lemke＠GECITS-EU.COM 13 Dec '02

13 Dec '02

Hi, does anybody have some experiences with the cloning of a filers config? What exactly are the configurations that are cloned? We have two F840 and one of them is used to snapmirror every volume of his partner except the root volume. Can we use the clone command to sync the configuration files on both filers? If we need to break up the mirrors in case of emergency, the filer should be able to act as an exact clone of the source filer with all nfs and cifs exports, options, permissions etc. Interfaces of course are already configured the same. Regards Thorsten Lemke

1 0

Re: file folding impact
by Timothy Cook 13 Dec '02

13 Dec '02

As I understand it, with windoze systems, when you modify a file, you completely rewrite it as a new file. Those blocks that belonged to the "old" file are maintained in the snapshot inode listing. This is not an issue with Unix (As I understand it). So with file folding, the contents of the active file system are compared against the most recent snapshot (only) to determine if blocks are duplicates and can be freed. Also, small files (less than 64K, which really are written to the inode) NT streams and directories are not folded. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ This electronic mail transmission contains information from Joy Mining Machinery which is confidential, and is intended only for the use of the proper addressee. If you are not the intended recipient, please notify us immediately at the return address on this transmission, or by telephone at (724) 779-4500, and delete this message and any attachments from your system. Unauthorized use, copying, disclosing, distributing, or taking any action in reliance on the contents of this transmission is strictly prohibited and may be unlawful. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

3 2

netgroup and user field
by Frank Bonnet 13 Dec '02

13 Dec '02

Hi I noticed that the "user" field is ignored by Ontap in the netgroup file according I use "files" only in the nsswitch.conf file. (machine,user,domain) ^^^^ Is there some plan at Netapp to support this field in the future to let only some users access to the filer from certain machines ? Thanks -- Frank Bonnet

1 0

Re: file folding impact --Correction!!!
by Timothy Cook 13 Dec '02

13 Dec '02

I misspoke. small files are files < 64 bytes, (NOT kb!) Oops! As I understand it, with windoze systems, when you modify a file, you completely rewrite it as a new file. Those blocks that belonged to the "old" file are maintained in the snapshot inode listing. This is not an issue with Unix (As I understand it). So with file folding, the contents of the active file system are compared against the most recent snapshot (only) to determine if blocks are duplicates and can be freed. Also, small files (less than 64K, which really are written to the inode) NT streams and directories are not folded. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ This electronic mail transmission contains information from Joy Mining Machinery which is confidential, and is intended only for the use of the proper addressee. If you are not the intended recipient, please notify us immediately at the return address on this transmission, or by telephone at (724) 779-4500, and delete this message and any attachments from your system. Unauthorized use, copying, disclosing, distributing, or taking any action in reliance on the contents of this transmission is strictly prohibited and may be unlawful. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 0

RE: file folding impact
by Chuck Tomasi 12 Dec '02

12 Dec '02

My question about file folding (after reading about it here and on NOW)... Why would a block end up in a snapshot if it is the same as the previous snapshot? Isn't the point of snapshots only to save the 'old version' of blocks that have been changed? OK, second question, does it only check the most recent snapshot or does it drill through all existing snaps? Now that I think more on the subject, third question... what happens to the snapshot "n" that references blocks in snap "n+1" when "n+1" rolls off the end and expires? --Chuck -----Original Message----- From: Mitko Blazeski [mailto:Mitko.Blazeski@proact.se] Sent: Thursday, December 12, 2002 3:10 AM To: 'Kumar, Rahul'; 'toasters(a)mathworks.com' Subject: RE: file folding impact File folding describes the process of checking the data in the most recent snapshot, and, if it is identical to the snapshot currently being created, just referencing the previous snapshot instead of taking up disk space writing the same data in the new snapshot. Disk space is saved by sharing unchanged file blocks between the active version of the file and the version of the file in the latest snapshot, if any. /Mitko -----Original Message----- From: Kumar, Rahul [mailto:rahul.kumar@eds.com] Sent: den 12 december 2002 05:19 To: stefan.holzwarth(a)adac.de; mats.oberg(a)tietoenator.com; toasters(a)mathworks.com Subject: RE: file folding impact BTW what does this option do Rahul -----Original Message----- From: stefan.holzwarth(a)adac.de [mailto:stefan.holzwarth@adac.de] Sent: Wednesday, December 11, 2002 7:08 PM To: mats.oberg(a)tietoenator.com; toasters(a)mathworks.com Subject: AW: file folding impact Since 2 months we use filefolding on all volumes. (F760,2TB,3000 User, only cifs) No remarkable impact in cpu usage. No trouble. Snapshotsize decreasing a little. Regards Stefan Holzwarth -----Ursprüngliche Nachricht----- Von: Öberg Mats [mailto:mats.oberg@tietoenator.com] Gesendet: Mittwoch, 11. Dezember 2002 14:20 An: toasters(a)mathworks.com Betreff: file folding impact Hi, I'm thinking about enabling file folding on one of our filers. Have anybody tried this? If so, what kind of performance decrease/size gain can be expected from enabling it? ---- Mats

4 4

RE: NFS Lock Performance
by Edward Hibbert 12 Dec '02

12 Dec '02

No, I have multiple client systems, so I do need the locks to go to the NetApp. Edward. -----Original Message----- From: Duncan Greenwood [mailto:duncan.greenwood@btinternet.com] Sent: 12 December 2002 22:56 To: Edward Hibbert; toasters(a)mathworks.com Subject: Re: NFS Lock Performance You don't say whether you have multiple client systems mounting the share, or just a single client with multiple processes contending for locks. In the latter situation and depending on your client o/s, you may be able to dispense with the lock manager altogether and use local kernel locks instead, using the "llock" option to the NFS mount command. rgds, D # ----- Original Message ----- From: "Edward Hibbert" <EH(a)dataconnection.com> To: <toasters(a)mathworks.com> Sent: Thursday, December 12, 2002 10:13 PM Subject: NFS Lock Performance > I'm hitting a filer very hard with NFS lock/unlock calls. Although the > ops/second is still comfortably below what I've seen it do before (with more > read/write ops), I'm seeing it occasionally take many seconds to return from > a non-blocking lock attempt, or from an unlock call. > > I theorise based purely on ignorance that I might be soaking the lock > manager. Is there any tuning I can do (e.g. add more threads)? > > Regards, > > Edward Hibbert. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.419 / Virus Database: 235 - Release Date: 13/11/2002

1 0

NFS Lock Performance
by Edward Hibbert 12 Dec '02

12 Dec '02

I'm hitting a filer very hard with NFS lock/unlock calls. Although the ops/second is still comfortably below what I've seen it do before (with more read/write ops), I'm seeing it occasionally take many seconds to return from a non-blocking lock attempt, or from an unlock call. I theorise based purely on ignorance that I might be soaking the lock manager. Is there any tuning I can do (e.g. add more threads)? Regards, Edward Hibbert.

2 1

UPS
by Frank Bonnet 12 Dec '02

12 Dec '02

Hi I've checked the ups command but unfortunately our UPS devices support only monitoring thru a RS232 serial line. Is there a way to configure "ups" to watch the second serial port of the F87 to detect a power failure ? Thanks a lot. -- Frank Bonnet

1 0

RE: file folding impact
by Mitko Blazeski 12 Dec '02

12 Dec '02

File folding describes the process of checking the data in the most recent snapshot, and, if it is identical to the snapshot currently being created, just referencing the previous snapshot instead of taking up disk space writing the same data in the new snapshot. Disk space is saved by sharing unchanged file blocks between the active version of the file and the version of the file in the latest snapshot, if any. /Mitko -----Original Message----- From: Kumar, Rahul [mailto:rahul.kumar@eds.com] Sent: den 12 december 2002 05:19 To: stefan.holzwarth(a)adac.de; mats.oberg(a)tietoenator.com; toasters(a)mathworks.com Subject: RE: file folding impact BTW what does this option do Rahul -----Original Message----- From: stefan.holzwarth(a)adac.de [mailto:stefan.holzwarth@adac.de] Sent: Wednesday, December 11, 2002 7:08 PM To: mats.oberg(a)tietoenator.com; toasters(a)mathworks.com Subject: AW: file folding impact Since 2 months we use filefolding on all volumes. (F760,2TB,3000 User, only cifs) No remarkable impact in cpu usage. No trouble. Snapshotsize decreasing a little. Regards Stefan Holzwarth -----Ursprüngliche Nachricht----- Von: Öberg Mats [mailto:mats.oberg@tietoenator.com] Gesendet: Mittwoch, 11. Dezember 2002 14:20 An: toasters(a)mathworks.com Betreff: file folding impact Hi, I'm thinking about enabling file folding on one of our filers. Have anybody tried this? If so, what kind of performance decrease/size gain can be expected from enabling it? ---- Mats

1 0

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