toasters

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13529 discussions

RE: maxing out the filesystem
by George, Andrew 23 Feb '06

23 Feb '06

Interesting We run a fair few filers in the 97%-99% arena, mainly as CIFS NAS devices. Every time I've seen it hit 100% 0 bytes available CIFS has refused to save anything. I've definitely seen he performance hit of adding too few disks at the same time...my usual trick is to add in half or full raidgroups and do it on a weekend so theres a chance for weekend users to fill up some disk. If I need to use less disks I usually do it on a Sat morning and run wafl scan reallocate to respread the data over the weekend...thats usually a big hit to snapshot space for us and in recent versions of Ontap, reallocate will hang if there isn't about 10% free snapshot and 10% free disk -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Blake Golliher Sent: Thursday, 23 February 2006 4:26 PM To: jburto1(a)yahoo.com Cc: toasters(a)mathworks.com Subject: Re: maxing out the filesystem A filer can be written to over 100% space utilization, it'll just keep growing. I've seen filers go up tot 107% space utilization before. On a full volume, what you'll see suffer are writes, as the filer has to work harder to find free contiguous space to write a stripe to. You may see read problems, but only if you have high churn. It sounds like you aren't all that performance centric, however. I'd say keep it in the 90% range. When you get the chance get some disks. I'd recommend you add disks in sets of raidgroups. If you have a 10 disk raid group, add another 10 (watch the vol option raidsize setting!). Do not add one disk at a time, since your setting yourself up for failure. All your new writes will go to the new disks, and so all reads will as well. -Blake On 2/22/06, Jeff Burton <jburto1(a)yahoo.com> wrote: > We have a FAS940C that has 2 trad volumes (5TB & 3TB, 144GB/FC drives) > that are always around 95%+ full because of funding and timing issues. > Only when we run out of space do we start deleting snapshots, > otherwise there are always a few hundred GB of snapshots. We've been > running over 90% for the past year and have never had an outage or > major hiccup...just a few disk failures. We typically have 4k-5k active CIFS connections and around 100 NFS connections. > Clients have never noticed a performance problem, and our CPU > utilization hovers between 30% and 50%. So maybe we do not notice a > problem because there is more than enough CPU cycles left over for > DOT/WAFL to deal with the full file system. > > Jeff > > --- Glenn Dekhayser <gdekhayser(a)voyantinc.com> wrote: > > > Netapp recommends that you keep the fileysystems at 80% or less. > > Otherwise, WAFL starts to work very hard finding places to put data, > > and you'll see CPU spikes, High disk utilization, and degraded performance. > > > > Glenn > > > > -----Original Message----- > > From: owner-toasters(a)mathworks.com > > [mailto:owner-toasters@mathworks.com] On Behalf Of Philippe Jackson > > Sent: Wednesday, February 22, 2006 12:09 PM > > To: toasters(a)mathworks.com > > Subject: maxing out the filesystem > > > > This is my first time posting Â... I just inherited 2 older filers. > > 840 and 960 models > > > > Unfortunately they didnÂ't come with nearly enough disk space for our needs. > > > > I know I canÂ't fill the volumes to 100% and expect them to work > > Â... but how > > > > high can I fill the volumes and expect it to work and performance > > not to sufferÂ.... Can I go to 95% if I turn off snapshots? > > > > Any feedback or experience from filers at 95% would be appreciated > > Â... IÂ'm hoping to learn from other peopleÂ's mistakes this time. > > > > Of course thereÂ's always the option of buying more disk Â... but > > for now I need to see what I can do with what we've been given > > without spending more money. > > > > Cheers > > Philip > > > > _________________________________________________________________ > > On the road to retirement? Check out MSN Life Events for advice on > > how to get there! > > http://lifeevents.msn.com/category.aspx?cid=Retirement > > > > > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com >

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RE: maxing out the filesystem
by Glenn Dekhayser 23 Feb '06

23 Feb '06

Netapp recommends that you keep the fileysystems at 80% or less. Otherwise, WAFL starts to work very hard finding places to put data, and you'll see CPU spikes, High disk utilization, and degraded performance. Glenn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Philippe Jackson Sent: Wednesday, February 22, 2006 12:09 PM To: toasters(a)mathworks.com Subject: maxing out the filesystem This is my first time posting Â... I just inherited 2 older filers. 840 and 960 models Unfortunately they didnÂ't come with nearly enough disk space for our needs. I know I canÂ't fill the volumes to 100% and expect them to work Â... but how high can I fill the volumes and expect it to work and performance not to sufferÂ.... Can I go to 95% if I turn off snapshots? Any feedback or experience from filers at 95% would be appreciated Â... IÂ'm hoping to learn from other peopleÂ's mistakes this time. Of course thereÂ's always the option of buying more disk Â... but for now I need to see what I can do with what we've been given without spending more money. Cheers Philip _________________________________________________________________ On the road to retirement? Check out MSN Life Events for advice on how to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement

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Look into this proposal with me, can you?
by Sybilla 23 Feb '06

23 Feb '06

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RE: Daylight saving changes from April to March on 2007!
by Ehrhart, Rick 22 Feb '06

22 Feb '06

Network Appliance is working on providing new timezone files without running zic and a procedure to load the new timezone files. - Rick - > -----Original Message----- > From: George, Andrew [mailto:georgea@anz.com] > Sent: Thursday, February 16, 2006 2:45 PM > To: Cao, Vinh V (Vinh); toasters(a)mathworks.com > Subject: RE: Daylight saving changes from April to March on 2007! > > > I asked about Australia as we've got a change due to the commonwealth > games > Netapps response was to point me to the Brazil time KB > article and tell > me roll my own zonefiles > Being a 99% windows only shop I was less than impressed with trying to > locate a Unix box with zic on top of it so I could compile > the binaries > (wound up using a linux box) considering just about every other > enterprise vendor I've seen was happy to supply updated zone files. > > I didn't succumb to temptation and name the new timezone time code to > "Netapp Sucks" (though it was awfully tempting to send a > couple of weeks > autosupport logs in with that just to get the message across > > Andrew > > -----Original Message----- > From: owner-toasters(a)mathworks.com > [mailto:owner-toasters@mathworks.com] > On Behalf Of Cao, Vinh V (Vinh) > Sent: Friday, 17 February 2006 6:06 AM > To: toasters(a)mathworks.com > Subject: Daylight saving changes from April to March on 2007! > > Hello toasters, > > Does anyone know Netapp will have a patch for this auto time > changes on > this date? > > Read Change to Daylight Saving Time > > > http://en.wikipedia.org/wiki/Energy_Policy_Act_of_2005#Change_ to_Dayligh t_Saving_Time Just curiosity, Vinh

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thank you
by sale sani 22 Feb '06

22 Feb '06

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maxing out the filesystem
by Philippe Jackson 22 Feb '06

22 Feb '06

This is my first time posting I just inherited 2 older filers. 840 and 960 models Unfortunately they didnt come with nearly enough disk space for our needs. I know I cant fill the volumes to 100% and expect them to work but how high can I fill the volumes and expect it to work and performance not to suffer. Can I go to 95% if I turn off snapshots? Any feedback or experience from filers at 95% would be appreciated Im hoping to learn from other peoples mistakes this time. Of course theres always the option of buying more disk but for now I need to see what I can do with what we've been given without spending more money. Cheers Philip _________________________________________________________________ On the road to retirement? Check out MSN Life Events for advice on how to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement

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F87 Upgrade from 6.x to 7.1 ?
by Frank Bonnet 22 Feb '06

22 Feb '06

Hello I have a F87 that I would like to upgrade from 6.5.x to 7.1 to have LDAP auth working. Any recommandations before jumping ? Thanks -- Frank Bonnet Memory fault - where am I?

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Fw: Re: 21-02-06 New Micro- Cap Stock 0pportunity
by Ambrose West 21 Feb '06

21 Feb '06

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hi
by Mel C. Black, III 21 Feb '06

21 Feb '06

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Getting LDAP to work
by isc78 21 Feb '06

21 Feb '06

Hi there I am trying to get my F810 Filer (Data Ontap 7.1) to authenticate users against an LDAP directory. I read this http://<filername>/na_admin/doc/html/ontap/filesag/7multi21.htm and changed the options mentioned, namely: ldap.base ldap.base.group ldap.base.passwd ldap.enable ldap.port ldap.servers ldap.usermap.enable I also set the CIFS authentication method to 4. My problem is that the Filer isn't very informative about what's going on. When adding a Filer to a Windows 2000 domain I get all sorts of status messages while adding it to the domain and afterwards I can run cifs domaininfo and cifs lookup to test the access to the domain and it works fine. But when trying this LDAP out the filer just logs nothing..when trying to add a UID from our LDAP directory to a share it just adds the UID that I type without validating it anywhere (or so it seems) My question: Is there a command or a way to get some sort of LDAP related status messages out? Even if it was just a "bind succesful" message or "authentication failed" it would help me a lot. Bonus question: What syntax should I use when adding a user to a share using an LDAP directory? When using a domain I just type domain\username but what exactly do I need to type when my authentication method is LDAP? The LDAP directory I connect to is not an Active Directory. Thanks in advance for any help. -- View this message in context: http://www.nabble.com/Getting-LDAP-to-work-t1160700.html#a3046434 Sent from the Network Appliance - Toasters forum at Nabble.com.

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toasters