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RE: NFS Stats Questions
by Eisler, Alex 06 May '02

06 May '02

Try setting the link options on the filer to 100/full. Cisco switches are very vulnerable in that department. On the switch (when in enabled mode): 'set port mod/port speed 100' 'set port mod/port duplex full' On the filer: 'ifconfig interface mediatype 100tx-fd' Don't forget to change the ifconfig line in the rc file also... I've seen it happen more than once that synch-negotiation problems deteriorate performance very noticeably... Alex. -----Original Message----- From: Chuah, Nicholas [mailto:nicholas_chuah@yahoo.com] Sent: Monday, May 06, 2002 14:16 To: toasters(a)mathworks.com Subject: NFS Stats Questions Hi all, Unit 720 with on-board 100BaseT, DataONTAP 6.1, NFS over UDP 32K, all Sun clients. Performance degradation was obvious after the switch was upgraded to the Cisco 6050. Had been testing with the TCP changes and changing the UDP datagram size to 8K but no significant improvement. Is there any tweaking I can try before I attempt to add a quad card or gigabit card? What can I deduce from the ifstat below with regards to the list overflow, underflow value? I'm not sure whether it is an acceptable amount of errors or an obvious performance issue given the amount of data transferred. Another query I have is the "high" misses of the NFS cache reply stats. I would appreciate any input to the above queries. Regards, Nic ********* RECEIVE Packets: 3634m | Bytes: 1421g | Total errors: 0 No buffers: 0 | Length errors: 0 | Runt frames: 0 Long frames: 0 | Collisions: 0 | CRC errors: 0 H/w overflow: 136 | List overflow: 44048 | Rst frame drops: 0 TRANSMIT Packets: 6606m | Bytes: 6761g | Total errors: 37 Collisions: 0 | Late collisions: 0 | Excess coll: 0 Queue overflow: 3913 | No carrier: 0 | H/w underflow: 11 Defer: 0 | Link failure: 25 | Time out: 0 List underflow: 1515 | Loss of carrier: 0 | No buffers: 0 DEVICE Resets: 2 LINK INFO Auto: Disabled | Mediatype: 100tx-fd | Link Partner: Unknown | Link State: Up NFS reply cache statistics: TCP: In progress Delay hits Misses Idempotent Non-idempotent 0 0 6075661 0 0 UDP: In progress Delay hits Misses Idempotent Non-idempotent 3233 6072 642460762 5550 1024

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PDC
by Peter Valian 06 May '02

06 May '02

Is anyone using something other than windows to be a PDC? i.e. LSI TotalNet, Sun PC Netlink, Samba? Any suggestions appreciated. -peter -- Peter Valian Network & Systems Administrator Southwestern University Georgetown, Texas --

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NFS Stats Questions
by Chuah, Nicholas 06 May '02

06 May '02

Hi all, Unit 720 with on-board 100BaseT, DataONTAP 6.1, NFS over UDP 32K, all Sun clients. Performance degradation was obvious after the switch was upgraded to the Cisco 6050. Had been testing with the TCP changes and changing the UDP datagram size to 8K but no significant improvement. Is there any tweaking I can try before I attempt to add a quad card or gigabit card? What can I deduce from the ifstat below with regards to the list overflow, underflow value? I'm not sure whether it is an acceptable amount of errors or an obvious performance issue given the amount of data transferred. Another query I have is the "high" misses of the NFS cache reply stats. I would appreciate any input to the above queries. Regards, Nic ********* RECEIVE Packets: 3634m | Bytes: 1421g | Total errors: 0 No buffers: 0 | Length errors: 0 | Runt frames: 0 Long frames: 0 | Collisions: 0 | CRC errors: 0 H/w overflow: 136 | List overflow: 44048 | Rst frame drops: 0 TRANSMIT Packets: 6606m | Bytes: 6761g | Total errors: 37 Collisions: 0 | Late collisions: 0 | Excess coll: 0 Queue overflow: 3913 | No carrier: 0 | H/w underflow: 11 Defer: 0 | Link failure: 25 | Time out: 0 List underflow: 1515 | Loss of carrier: 0 | No buffers: 0 DEVICE Resets: 2 LINK INFO Auto: Disabled | Mediatype: 100tx-fd | Link Partner: Unknown | Link State: Up NFS reply cache statistics: TCP: In progress Delay hits Misses Idempotent Non-idempotent 0 0 6075661 0 0 UDP: In progress Delay hits Misses Idempotent Non-idempotent 3233 6072 642460762 5550 1024

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two nics on same subnet
by Piotr KUCHARSKI 04 May '02

04 May '02

Having atm and fe I wanted the latter to serve as a backup in case atm fails. So I configured atm to be .7 and fe to be .6 in the same subnet. It gave me a warning: ifconfig (warning): route already exists (probably due to another interface on the same subnet.) but that I (almost) expected. However, when I test it and pull out the atm, fe doesn't respond to me (quite successfully destroying my concept of backup/load balancing/automounter). That's not what I expected. Any thoughts? p.

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long cifs.home_dir
by Piotr KUCHARSKI 03 May '02

03 May '02

I have 14 qtrees and wanted all of them to be in cifs.home_dir option, started from /vol/vol0/stud1994/%u/NT... and it said error: option value length too long so i renamed qtrees to shorter names, like s94, renamed vol0 to v and now it fits. But what if I have more qtrees? Any way to enlarge space for it? (I thought of /vol/vol0/*/%u%/NT, but didn't work) p.

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OnTap SNMP Traps
by Ben Rockwood 03 May '02

03 May '02

Hello Toasterites, I've been (trying) to experiment with SNMP traps with a test filer I have. However, I've run into a road block, or so I think. Is it not true that OnTap should have a series of predefined traps? In the documentation it suggests using default traps by loading "/etc/defaults/traps", however a /etc/defaults directory doesn't exsist on any of the filers I have. Does this actually mean that if I want to add traps I should be placing them in /etc/default/traps instead of another file? I find it odd that OnTap would make me custom define _all_ of my traps (minus the standard traps defined in RFC1213). I'll even note that on page 563 of the OnTap 5.1 users guide it mentions there being Builtin traps as defined in the MIB for diskFailedShutdown,etc. So far, the only traps I've been sent from my test filer is "coldStarts" after I initialize SNMP traps (snmp init 1). Any ideas? Ben Rockwood

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FC Link Stats
by Blake Folgner 03 May '02

03 May '02

Hello All, I need a little advise on what this all means below in regards to the FC LINK STATS for my F760. I'm running DOT 6.2.1 with 1 FC8 drive shelve with 7 18GB drives. I'm not to sure if this is the beginning of a failed disk or what. Any info would be appreciated. ===== FC LINK STATS ===== Loop Link Underrun Loss of Invalid Frame In Frame Out ID Failure count sync CRC count count count count count 0a.ha 0 0 1 0 0 0 Loop Link Underrun Loss of Invalid Frame In Frame Out ID Failure count sync CRC count count count count count 1.0 4 0 37150 0 284946 181494 1.1 0 0 180 0 290523 164623 1.2 0 0 181 0 289889 170057 1.3 0 0 181 0 282485 187223 1.4 0 0 180 0 292010 198258 1.5 0 0 181 0 751463 359971 1.6 0 0 180 0 397300 283784 1.ha 0 0 1 0 1545410 2588616 Best regards, Blake Best regards, Blake Folgner WebRunners blake(a)webrunners.com

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FC Actions (was RE: FC Link Stats)
by Ben Rockwood 03 May '02

03 May '02

Toasters, This might be a descent time to ask. What actions are taken to resolve "Link Failure" and "Loss of Sync". Both Underruns and Invalid CRCs aren't really a concern since it should generate a resend, or at work a loop reset to clear any blockage. However, I'm curious what happened after a Link Failure and Loss of Sync. On most systems I'd assume this would result in a LIP. I suppose you could respond to a Link Failure with a full loop reset (rather than LIP) but I'm not sure how their being handled. Is there comeone familiar enought with FC on the Filers to comment on which actions are taken to resolve each of these states at the FC level? Thank You. Ben Rockwood -----Original Message----- From: Blake Folgner [mailto:admin@webrunners.com] Sent: Fri 5/3/2002 10:43 AM To: toasters(a)mathworks.com Cc: Subject: FC Link Stats Hello All, I need a little advise on what this all means below in regards to the FC LINK STATS for my F760. I'm running DOT 6.2.1 with 1 FC8 drive shelve with 7 18GB drives. I'm not to sure if this is the beginning of a failed disk or what. Any info would be appreciated. ===== FC LINK STATS ===== Loop Link Underrun Loss of Invalid Frame In Frame Out ID Failure count sync CRC count count count count count 0a.ha 0 0 1 0 0 0 Loop Link Underrun Loss of Invalid Frame In Frame Out ID Failure count sync CRC count count count count count 1.0 4 0 37150 0 284946 181494 1.1 0 0 180 0 290523 164623 1.2 0 0 181 0 289889 170057 1.3 0 0 181 0 282485 187223 1.4 0 0 180 0 292010 198258 1.5 0 0 181 0 751463 359971 1.6 0 0 180 0 397300 283784 1.ha 0 0 1 0 1545410 2588616 Best regards, Blake Best regards, Blake Folgner WebRunners blake(a)webrunners.com

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Re: PDC
by Peter Valian 03 May '02

03 May '02

Thanks for the reply, unfortunately I've already tried without much luck. I thought perhaps more users on this list were sucessful in getting something other than Windows to work as a PDC. Its looking more and more like they are just rumors. Everything Ive heard so far starts with, "I haven't tried this but..." or "you should be able to...". Is there anyone at all with some personal experience (or even second hand experience) on if this even works? Magnus Swenson wrote: > Sound like you should check out, Samba TNG. > > I haven't played around with it myself, but from reading at > samba.org that would be the place to go ... > > http://www.samba-tng.org/docs.html > > http://bioserve.latrobe.edu.au/samba/ntdomfaq.html > > > > > -----Original Message----- > From: Peter Valian [mailto:valianp@southwestern.edu] > Sent: Fri 5/3/2002 11:19 AM > To: Puneet Anand > Cc: toasters(a)mathworks.com > Subject: Re: PDC > > I understand its not supported. It was my belief that someone on the > toasters list was able to get it to work something UNIX. > > Actually the latest version of samba is like 99% of the way there. I > got my filer talking to it and passing authentication requests from > clients to the samba box. it looks like I just have a permissions issue > right now. > > I was hoping there would be some netapp enineers on here that can > *unofficially* offer some tips. > > The main problem being password syncing between NT and NIS on unix. > > thanks, > peter > > Puneet Anand wrote: > >>Hi Peter, >> >>Non Microsoft domain controllers are not supported with filers at this >>time. >>This is documented on the NOW site : >> >>http://now.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=15548 >> >>-Puneet >>____ >> >> >>Peter Valian wrote: >> >> >>>Is anyone using something other than windows to be a PDC? i.e. LSI >>>TotalNet, Sun PC Netlink, Samba? >>> >>>Any suggestions appreciated. >>> >>>-peter >>> >>>-- >>>Peter Valian >>>Network & Systems Administrator >>>Southwestern University >>>Georgetown, Texas >>>-- >>> > > > -- Peter Valian Network & Systems Administrator Southwestern University Georgetown, Texas 512.863.1586 office 512.863.1605 fax --

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Re: PDC
by Peter Valian 03 May '02

03 May '02

At first glance it seems like a one-way account migration tool rather than a syncing mechanism. I would need to sync in either direction. Is anyone doing anything using LDAP for authentication? Any chance netapp is woring on that as an option rather than a PDC. Would be a much more open solution. -peter Yoder, Alan wrote: > The SecureShare Account Migrator (on NOW) > should be able to help you with name syncing. > > Alan > > =============================================================== > Alan G. Yoder agy(a)netapp.com > =============================================================== > > >>-----Original Message----- >>From: Peter Valian [mailto:valianp@southwestern.edu] >>Sent: Friday, May 03, 2002 9:19 AM >>To: Puneet Anand >>Cc: toasters(a)mathworks.com >>Subject: Re: PDC >> >> >>I understand its not supported. It was my belief that someone on the >>toasters list was able to get it to work something UNIX. >> >>Actually the latest version of samba is like 99% of the way there. I >>got my filer talking to it and passing authentication requests from >>clients to the samba box. it looks like I just have a >>permissions issue >>right now. >> >>I was hoping there would be some netapp enineers on here that can >>*unofficially* offer some tips. >> >>The main problem being password syncing between NT and NIS on unix. >> >>thanks, >>peter >> >>Puneet Anand wrote: >> >>>Hi Peter, >>> >>>Non Microsoft domain controllers are not supported with >>> >>filers at this >> >>>time. >>>This is documented on the NOW site : >>> >>>http://now.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=15548 >>> >>>-Puneet >>>____ >>> >>> >>>Peter Valian wrote: >>> >>> >>>>Is anyone using something other than windows to be a PDC? i.e. LSI >>>>TotalNet, Sun PC Netlink, Samba? >>>> >>>>Any suggestions appreciated. >>>> >>>>-peter >>>> >>>>-- >>>>Peter Valian >>>>Network & Systems Administrator >>>>Southwestern University >>>>Georgetown, Texas >>>>-- >>>> >> >> >>-- >>Peter Valian >>Network & Systems Administrator >>Southwestern University >>Georgetown, Texas >>-- >> >> -- Peter Valian Network & Systems Administrator Southwestern University Georgetown, Texas --

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