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RE: FLOW CONTROL
by nick.mayrath＠webmd.net 03 Apr '02

03 Apr '02

What kind of benefit does setting 'receive' to 'desired' bring? "Eff Norwood" <effrem.norwood@cyn To: <mlelstv(a)xlink.net>, "Noll, Kevin" <kevin.noll(a)cgey.com> aptic.com> cc: "'Toasters \(E-mail\)'" <toasters(a)mathworks.com> Sent by: Subject: RE: FLOW CONTROL owner-toasters@math works.com 04/02/2002 02:14 PM By default Cisco sets flow control to enable on the send side only. To enable flowcontrol in both directions as desired: set port flowcontrol 2/1-12 send desired set port flowcontrol 2/1-12 receive desired If you are going to make these kinds of changes to other switches in your network, do the far ends first so you don't get dropped. Eff Norwood > -----Original Message----- > From: owner-toasters(a)mathworks.com > [mailto:owner-toasters@mathworks.com]On Behalf Of Michael van Elst > Sent: Tuesday, April 02, 2002 11:32 AM > To: Noll, Kevin > Cc: 'mlelstv(a)xlink.net'; 'Toasters (E-mail)' > Subject: Re: FLOW CONTROL > > > On Tue, Apr 02, 2002 at 02:19:59PM +0100, Noll, Kevin wrote: > > Sorry, are you refering to the desired and off, or are you > saying that it > > should be enabled? > > I am referring to the combination: > > send desired > receive off > > Greetings, > Michael van Elst > > > > > > > Thanks > > > > -----Original Message----- > > From: Michael van Elst [mailto:mlelstv@xlink.net] > > Sent: 02 April 2002 14:21 > > To: Noll, Kevin > > Cc: 'Toasters (E-mail)' > > Subject: Re: FLOW CONTROL > > > > > > On Tue, Apr 02, 2002 at 01:21:24PM +0100, Noll, Kevin wrote: > > > Hi All > > > > > > > > > We are standardized with Sun and Cisco equipment. All > equipment on our > > > Database Vlans are using Gig Ethernet. Flow control on our > sun servers > > are > > > set to on. However, on our Cisco Switches, the settings are > as follows. > > > > > > set port flowcontrol 2/1-12 send desired > > > > > > set port flowcontrol 2/1-12 receive off > > > > > > > > > I am not a cisco engineer, but would like to know if this is > correct. I > > > believe it should be both on. > > > > > > This is the configuration that was necessary on our site (and the same > > with IOS-based switches). It was also recommended by our local NetApp > > people. > > > > I guess this makes it as 'correct' as possible. > > > > > > Greetings, > > -- > > i.A. Michael van Elst / phone: +49 721 9652 330 > > Xlink - Network Information Centre \/ fax: +49 721 9652 349 > > Emmy-Noether-Strasse 9 /\ link http://nic.xlink.net/ > > D-76131 Karlsruhe, Germany /_______ email: > hostmaster(a)xlink.net > > [ KPNQwest Germany GmbH, Sitz Karlsruhe > ] > > [ Amtsgericht Karlsruhe HRB 8161, Geschaeftsfuehrer: Michael > Mueller-Berg ] > > > > > > > ****************************************************************** > ************************** > > " This message contains information that may be privileged or > confidential and > > is the property of the Cap Gemini Ernst & Young Group. It is > intended only for > > the person to whom it is addressed. If you are not the intended > recipient, you > > are not authorized to read, print, retain, copy, disseminate, > distribute, or use > > this message or any part thereof. If you receive this message > in error, please > > notify the sender immediately and delete all copies of this message ". > > > ****************************************************************** > ************************** > -- > i.A. Michael van Elst / phone: +49 721 9652 330 > Xlink - Network Information Centre \/ fax: +49 721 9652 349 > Emmy-Noether-Strasse 9 /\ link http://nic.xlink.net/ > D-76131 Karlsruhe, Germany /_______ email: > hostmaster(a)xlink.net > [ KPNQwest Germany GmbH, Sitz Karlsruhe > ] > [ Amtsgericht Karlsruhe HRB 8161, Geschaeftsfuehrer: Michael > Mueller-Berg ]

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RE: FLOW CONTROL
by Noll, Kevin 02 Apr '02

02 Apr '02

Sorry, are you refering to the desired and off, or are you saying that it should be enabled? Thanks -----Original Message----- From: Michael van Elst [mailto:mlelstv@xlink.net] Sent: 02 April 2002 14:21 To: Noll, Kevin Cc: 'Toasters (E-mail)' Subject: Re: FLOW CONTROL On Tue, Apr 02, 2002 at 01:21:24PM +0100, Noll, Kevin wrote: > Hi All > > > We are standardized with Sun and Cisco equipment. All equipment on our > Database Vlans are using Gig Ethernet. Flow control on our sun servers are > set to on. However, on our Cisco Switches, the settings are as follows. > > set port flowcontrol 2/1-12 send desired > > set port flowcontrol 2/1-12 receive off > > > I am not a cisco engineer, but would like to know if this is correct. I > believe it should be both on. This is the configuration that was necessary on our site (and the same with IOS-based switches). It was also recommended by our local NetApp people. I guess this makes it as 'correct' as possible. Greetings, -- i.A. Michael van Elst / phone: +49 721 9652 330 Xlink - Network Information Centre \/ fax: +49 721 9652 349 Emmy-Noether-Strasse 9 /\ link http://nic.xlink.net/ D-76131 Karlsruhe, Germany /_______ email: hostmaster(a)xlink.net [ KPNQwest Germany GmbH, Sitz Karlsruhe ] [ Amtsgericht Karlsruhe HRB 8161, Geschaeftsfuehrer: Michael Mueller-Berg ] ******************************************************************************************** " This message contains information that may be privileged or confidential and is the property of the Cap Gemini Ernst & Young Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message ". ********************************************************************************************

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spinning spares..
by kevin graham 02 Apr '02

02 Apr '02

Does anyone know if OnTAP spins down spares? IIRC, when I've pulled spares in the past, they were definately spinning. I can't say for sure why this is bothering me, but it would seem that leaving them idle would be a good thing.. From looking at specs, even older drives will be ready in NLT 20s, which isn't enough to seriously impact rebuild times, and the drive is still available for non-media access commands, so it seems like an all 'round good idea.. Is there something I'm overlooking, or is this completely inconsequential in the grand scheme of things? ..kg..

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qtree
by pkeim(contr-ird) 02 Apr '02

02 Apr '02

Is there a way to quickly determine the amount of disk space consumed by each qtrees without having to use Windows Explorer? We don't have quotas enabled, so I can't use "quota report". We have an F840 with 6.1.2R1 (I have a feeling I'm going to regret asking this because the answer is so easy, but I can't find it!)

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RE: adding different drive sizes to an existing volume
by Joe Luchtenberg 02 Apr '02

02 Apr '02

This exceeds the max capacity of the F740. You could get away with 3x FC9 shelves with 36GB drives and 2x shelves with 18GB drives. See http://now.netapp.com/NOW/knowledge/docs/hardware/NetApp/syscfg/scdot612/ind ex.htm. Joe Joe Luchtenberg Dataline, Inc. Email: joe.luchtenberg(a)data-line.com Phone: 757-457-0504 (direct line) 757-858-0600 (front desk) 757-285-1223 (mobile) Fax: 757-858-0606 Please visit us at www.data-line.com > -----Original Message----- > From: Eric Hester [mailto:erich@nuvox.net] > Sent: Tuesday, April 02, 2002 11:36 AM > To: toasters(a)mathworks.com > Subject: adding different drive sizes to an existing volume > > > I have an F740 with 3 FC9 shelves loaded with 18gig drives. > I have 3 FC9 shelves loaded with 36gig drives from another > netapp I want > to move to the F740. > > If I add these drives to an existing volume but make them > their own raid > group, and leave one 36gig spare, that will not cause me any heartache > will it? > > -- > Eric Hester > Director of Systems Engineering > NuVox Communications, Inc. > 864.331.8171 eric(a)nuvox.net >

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adding different drive sizes to an existing volume
by Eric Hester 02 Apr '02

02 Apr '02

I have an F740 with 3 FC9 shelves loaded with 18gig drives. I have 3 FC9 shelves loaded with 36gig drives from another netapp I want to move to the F740. If I add these drives to an existing volume but make them their own raid group, and leave one 36gig spare, that will not cause me any heartache will it? -- Eric Hester Director of Systems Engineering NuVox Communications, Inc. 864.331.8171 eric(a)nuvox.net

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NTP not working
by Frank Bonnet 02 Apr '02

02 Apr '02

Hi I'm still in trouble wit a F85 running 6.1.1R2 the clock is getting late ( about 20 mins a week ) I have to reset it manually to correct the local time of the filer. Is this a known Ontap bug or is it a hardware problem ? NTP is on but it doesn't seems to works well as all our UNIX machines are NTP sync with success on the same NTP server ... Thanks for any help.

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FLOW CONTROL
by Noll, Kevin 02 Apr '02

02 Apr '02

Hi All We are standardized with Sun and Cisco equipment. All equipment on our Database Vlans are using Gig Ethernet. Flow control on our sun servers are set to on. However, on our Cisco Switches, the settings are as follows. set port flowcontrol 2/1-12 send desired set port flowcontrol 2/1-12 receive off I am not a cisco engineer, but would like to know if this is correct. I believe it should be both on. What type of throughput should you see of a file copy over gig ethernet? Thanks KEVIN NOLL ******************************************************************************************** " This message contains information that may be privileged or confidential and is the property of the Cap Gemini Ernst & Young Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message ". ********************************************************************************************

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SNMP Failure Detection
by Ben Rockwood 31 Mar '02

31 Mar '02

Hello Toasters. I've been using a script to monitor disk failures on our filers. It's worked pretty well in the past, but I've hit a snag today... Normally I can tell if a disk has failed in one of two ways: 1) Check the SNMP "disks.failed" value, if !eq 1, we've got a problem. 2) Check via SNMP, the total number of disks, then check the number of active disks, and add to it the number of spare disks. If total disks !eq to active plus spare disk, then there is a failure. The second method is often needed for the failures that "slip through the cracks", and is sufficent. However today a disk failed and in doing so was removed from the TOTAL disk count, and not added as a failed disk, so in a case where I have 84 disks, I get the following output from my script: The global message is: "The system's global status is normal. " Total disk count is: 83 The Active Disk Count is: 82 The Spare Disk Count is: 1 The Failed Disk Count is: 0 I've omitted the non-relevent output from my script, which does simple snmpget's from the Net-SNMP app. Anyway, three things went wrong here, the global message doesn't reflect a failure. The total disk count was decremented when it should not have and the failed disk count is still eq to zero. Now, because I know that all our filers should always have 2 spare disks I can rewrite my scripts to look for this, however I had previously written them in a very portable way, which hardcoding the number of spares to look for will degridate... Any ideas why this happens? I'm sure I'm not the only one who's seen this. Ben Rockwood brockwood(a)homestead-inc.com

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RE: Cluster licenses -- what if I break the cluster will they sti ll w ork?
by Art Hebert 31 Mar '02

31 Mar '02

I did a 100MB copy clustered and non clustered and I saw a 15% hit due to having to copy the nvram. But the clustering is very valuable, I just showed our ceo how it works and he was quite happy. He was in helping us do some computer room work. art -----Original Message----- From: kevin graham [mailto:kgraham@dotnetdotcom.org] Sent: Tuesday, March 26, 2002 8:44 PM To: Art Hebert Cc: 'toasters(a)mathworks.com' Subject: RE: Cluster licenses -- what if I break the cluster will they sti ll w ork? > I thought the license keys were different for every machine. Are you saying > I can use the license key for one machine on another. Aren't they tied to > serialnumbers? AFAIK, no. > Anybody else out there with a cluster, what does is listed when you run > license on each head? Now that I look, both heads of my cluster have the same license keys. I'm not sure if that's intentional, or the same lazy case mentioned previously. Ugh. > I figure we will get a 15% improvement in performance if I break the > heads. How much performance improvement have people seen when they have > moved from 100mb to gig? Haven't had a chance to compare them side to side, but the gige's are preferable even for equivalent traffic given some of the extras, such as checksum offloading, jumbo framing (if you can use it) and interrupt coalescing. Where are you extracting the 15% number though? (and how is the 100:1000mb related?) ..kg..

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