toasters August 2002

toasters@lists.teaparty.net

102 participants
113 discussions

RE: Oracle using NetApp
by Peter Bryant 22 Aug '02

22 Aug '02

*** Before acting on this e-mail or opening any attachment you are advised to read the disclaimer at the end of this e-mail *** Beg to differ Gents. We had an install with UDP/Solaris/1GB over private circuits Sun to Filer - so no switch or hubs in the way at all. Performance was worse than the kit it replaced. Specifically backing up (I know - over NFS not a good idea - but that's another tale <g>) it took 36 hours for 225GB to go to tape. Switch to TCP and with TCP tuning (that I published to the list a while back) and performance screamed - file I/O via a Sybase control database went from 30-60 seconds down to 3 or 4. And the backups dropped to 4-5 hours. NetApp definitely stated UDP/Solaris/1GB was not a good combination and stick with TCP. It's a Solaris implementation they implied. I posted their notes here as well TTFN Peter -----Original Message----- From: John Clear [mailto:jclear@ati.com] Sent: 20 August 2002 19:02 To: 'igor(a)txc.com'; Jeff Kennedy Cc: Brian Long; Robin Winslett; toasters(a)mathworks.com Subject: RE: Oracle using NetApp -----Original Message----- As far as I'm concerned, this is an urban legend :-) I use UDP v3 on Solaris with NetApp, and I've always had a good performance, no worse than Linux or HPUX. When you say you experienced it yourself, what exactly did you see? Was it reproducible with iozone? What were the numbers? -----Original Message----- In our environment, YMMV, Solaris (100mb) to NetApp (100mb) works fine over UDP. Solaris (100mb) to NetApp (gigabit) was horribly slow for certain operations. Normal file reads were fine, but a compare (`cmp`) of two files from the same filer were unbelievably slow. A cmp that would take 15 seconds to the 100mb interface of the NetApp would take an hour or more to the gigabit interface. To get Sun to actually admit it was their problem, we did a Solaris (100mb) to Solaris (gigabit) test over UDP, and it took 5minutes or so. Not as bad as to NetApp, but bad enough for them to file a bug, which Sun Engineering ignored since there is a work-around (use TCP or the 100mb interface of the filer). This was with Solaris 8. Solaris 7 did not have this problem in our environment. Since nearly all our clients are 100mb, and only our QA group was running into this, we set their automount entries to point to the 100mb interface. John ******************************* Disclaimer ***************************** Confidentiality: This e-mail and any attachments are intended for the addressee(s) only and may be confidential. If they have come to you in error you must take no action based on them, nor must you copy or show them to anyone; please reply to this e-mail and highlight the error. Viruses: Although we have taken steps to ensure that this e-mail and attachments are free from any virus, we advise that in keeping with good practice the recipient should ensure they are actually virus free. ********************** http://www.burallplastec.com ********************

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RE: Oracle using NetApp
by John Clear 22 Aug '02

22 Aug '02

-----Original Message----- As far as I'm concerned, this is an urban legend :-) I use UDP v3 on Solaris with NetApp, and I've always had a good performance, no worse than Linux or HPUX. When you say you experienced it yourself, what exactly did you see? Was it reproducible with iozone? What were the numbers? -----Original Message----- In our environment, YMMV, Solaris (100mb) to NetApp (100mb) works fine over UDP. Solaris (100mb) to NetApp (gigabit) was horribly slow for certain operations. Normal file reads were fine, but a compare (`cmp`) of two files from the same filer were unbelievably slow. A cmp that would take 15 seconds to the 100mb interface of the NetApp would take an hour or more to the gigabit interface. To get Sun to actually admit it was their problem, we did a Solaris (100mb) to Solaris (gigabit) test over UDP, and it took 5minutes or so. Not as bad as to NetApp, but bad enough for them to file a bug, which Sun Engineering ignored since there is a work-around (use TCP or the 100mb interface of the filer). This was with Solaris 8. Solaris 7 did not have this problem in our environment. Since nearly all our clients are 100mb, and only our QA group was running into this, we set their automount entries to point to the 100mb interface. John

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Re: Oracle using NetApp
by mds＠gbnet.net 20 Aug '02

20 Aug '02

One plea, from the heart: If your site has seen performance issues on NFS between Suns and NetApps please, please log support calls with Sun, NetApp and the switch vendors. And don't let any of them off the hook until you get patches, workarounds explanations and reliable performance all the time. It'll help everyone else - particularly of you have the chutzpah to drive the calls hard and make lots of noise. When this stuff gets back to the engineering groups *then* and *only* then will the decent work get done. Sorry if this is egg-sucking 101, but I find, as a conslutant (or whatever you want to call me) that people are way too backward about pushing the vendors, and far too willing to just moan to friends. This Sun-NetApp discussion crops up again and again on this list, and it's obviously a real bugbear for lots of people, so I'd like to get it squished once and for all. Message ends. -- -Mark ... an Englishman in Delft ...

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RE: secure filer access
by Ehrhart, Rick 20 Aug '02

20 Aug '02

The 'options <protocol>.enable' command enables and disables the <protocol>. With ONTAP 6.2, there is a new feature called protocol access control which allows you to control access to a particular protocol. Check out na_protocolaccess(8) for more details; but the general syntax is: 'options <protocol>.access <access_spec> [[AND|OR <access_spec>] ... ]' where <access_spec> is: host [= | != ] <host_spec> if [= | != ] <network interface spec> legacy none all <host_spec> is a comma-separated list of host names or IP addresses <network interface spcec> is a comma-separated list of network interface names. The legacy keyword means use the old method for control. For telnet and httpd.admin, it is telnet.hosts. However, if you disable telnet, then trusted.hosts is not looked at. The same goes for httpd.admin. To answer the original question: "I'm trying to configure ssh/https admin access from any host to a filer, but no telnet, no http admin" Try this: options ssh.enable on options ssl.enable on options telent.enable off options httpd.admin.enable off The 'options http.enable off' command will disable http access, not http admin access. You do need SecureAdmin installed as well. > -----Original Message----- > From: Piotr KUCHARSKI [mailto:chopin@sgh.waw.pl] > Sent: Tuesday, August 20, 2002 11:17 AM > To: toasters(a)mathworks.com > Cc: Moritz Willers > Subject: Re: secure filer access > > > On Wed, Aug 14, 2002 at 05:34:30PM +0100, Moritz Willers wrote: > > I'm trying to configure ssh/https admin access from any > host to a filer, > > but no telnet, no http admin > > You need to have SecureAdmin installed and then options: > ssh.enable on > ssl.enable on > httpd.enable off [1] > telnet.enable off > > Plus perhaps trusted.hosts > > and rsh access from one host only (the admin host). > > That I don't know, I use 'option rsh.enable off' > > p. > > [1] Hm, not sure if I still need these options: > httpd.access legacy > httpd.admin.access host=adm.ho.st.ip > httpd.admin.enable on These options above state: 1. for the HTTP protocol, use legacy, which means access is allowed for all users. 2. for administrative HTTP, only the host adm.ho.st.ip is allowed access. Hope this helps, - Rick -

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Oracle using NetApp
by Robin Winslett 20 Aug '02

20 Aug '02

Has anyone got experience with running Oracle on NetApp filers? I am looking for information for a project I am involved in. 1. How does performance really stack up compared with a DAS or SAN solution? Does the IP stack -vs- SCSI stack cause a significant performance lag? 2. Are there compelling reasons why this would be a preferred solution? 3. Are there compelling reasons why this solution should be avoided? 4. What are the gotchas of such a solution? Are there configuration issues that can trip you up? I've read the whitepapers on the NetApp and Oracle sites. I am looking for someone though that has actually done this. Thanks, Robin winslett(a)ev1.net

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RE: Reset Archive Bits
by Steve Evans 20 Aug '02

20 Aug '02

Well my goal is to run a differential on the active file system monday through friday. Then on Monday morning at 12:05 am do a full on weekly.0. Then I need to reset the archive bits on the active file system so that the differential Monday night will backup the proper data. -----Original Message----- From: Benn, Paul [mailto:paul.benn@netapp.com] Sent: Tuesday, August 20, 2002 12:02 PM To: Steve Evans Subject: RE: Reset Archive Bits don't know specifically what you're trying to achieve but perhaps you could create a script to run on the Windows machine once a week that might do what you want. you'd need to leverage rsh and manually create and delete the weekly snapshot. something like: REM delete the snapshot created the week before rsh [filer's host name] [-l username] snap delete [snapshot name] REM reset the archive bits attrib -a /s REM create a snapshot that you want to backup from rsh [filer's host name] [-l username] snap create [snapshot name] REM run the backup ntbackup [options] -----Original Message----- From: Steve Evans [mailto:sevans@foundation.sdsu.edu] Sent: Tuesday, August 20, 2002 11:48 AM To: Benn, Paul Subject: RE: Reset Archive Bits Not if I backup the snapshot though right? Steve Evans Computing Services (619) 594-0653 -----Original Message----- From: Benn, Paul [mailto:paul.benn@netapp.com] Sent: Tuesday, August 20, 2002 11:20 AM To: Steve Evans; toasters(a)mathworks.com Subject: RE: Reset Archive Bits by the way, a "full" backup (assuming you do that once a week) should clear the archive bit as well. regards, Paul Benn Network Appliance -----Original Message----- From: Steve Evans [mailto:sevans@foundation.sdsu.edu] Sent: Tuesday, August 20, 2002 10:13 AM To: toasters(a)mathworks.com Subject: Reset Archive Bits I'm looking at running differentials during the week and then backing up weekly.0 Monday morning at 12:05. The problem is I need a way to reset all the archive bits right before that. How can I do this? By the way cifs only environment. Steve Evans Computing Services (619) 594-0653

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RE: Reset Archive Bits
by Steve Evans 20 Aug '02

20 Aug '02

The only problem is it didn't work on hidden files. Steve Evans Computing Services (619) 594-0653 -----Original Message----- From: Benn, Paul [mailto:paul.benn@netapp.com] Sent: Tuesday, August 20, 2002 11:15 AM To: Steve Evans; toasters(a)mathworks.com Subject: RE: Reset Archive Bits how about the "attrib -a /s" command? -a = clear the archive bit and /s = subdirectories -----Original Message----- From: Steve Evans [mailto:sevans@foundation.sdsu.edu] Sent: Tuesday, August 20, 2002 10:13 AM To: toasters(a)mathworks.com Subject: Reset Archive Bits I'm looking at running differentials during the week and then backing up weekly.0 Monday morning at 12:05. The problem is I need a way to reset all the archive bits right before that. How can I do this? By the way cifs only environment. Steve Evans Computing Services (619) 594-0653

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RE: Reset Archive Bits
by Benn, Paul 20 Aug '02

20 Aug '02

by the way, a "full" backup (assuming you do that once a week) should clear the archive bit as well. regards, Paul Benn Network Appliance -----Original Message----- From: Steve Evans [mailto:sevans@foundation.sdsu.edu] Sent: Tuesday, August 20, 2002 10:13 AM To: toasters(a)mathworks.com Subject: Reset Archive Bits I'm looking at running differentials during the week and then backing up weekly.0 Monday morning at 12:05. The problem is I need a way to reset all the archive bits right before that. How can I do this? By the way cifs only environment. Steve Evans Computing Services (619) 594-0653

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secure filer access
by Moritz Willers 20 Aug '02

20 Aug '02

I'm trying to configure ssh/https admin access from any host to a filer, but no telnet, no http admin and rsh access from one host only (the admin host). I can't find how I can control ssh/https access separately. Is this really not possible or am I missing something? how do others manage secure filer management via cli and gui? thanks - Moritz Visit our website at http://www.ubswarburg.com This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments.

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RE: Reset Archive Bits
by Benn, Paul 20 Aug '02

20 Aug '02

how about the "attrib -a /s" command? -a = clear the archive bit and /s = subdirectories -----Original Message----- From: Steve Evans [mailto:sevans@foundation.sdsu.edu] Sent: Tuesday, August 20, 2002 10:13 AM To: toasters(a)mathworks.com Subject: Reset Archive Bits I'm looking at running differentials during the week and then backing up weekly.0 Monday morning at 12:05. The problem is I need a way to reset all the archive bits right before that. How can I do this? By the way cifs only environment. Steve Evans Computing Services (619) 594-0653

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toasters August 2002