toasters

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13514 discussions

RE: filer-side packet tracing.
by Haag,Dennis 10 Mar '00

10 Mar '00

Pktt was introduced in 5.3.2 as an rc_toggle_basic command, it was changed to a regular command in 5.3.4. Although it doesn't show up on the list when you type ? it is there. -----Original Message----- From: Steve Armijo [mailto:armijo@cs.unm.edu] Sent: Friday, March 10, 2000 1:34 AM To: Fox, Adam Cc: 'Ronan Mullally'; toasters(a)mathworks.com Subject: Re: filer-side packet tracing. On Thu, Mar 09, 2000 at 03:18:52PM -0800, Fox, Adam wrote: > > Yes. pktt will do this. It creates a file in tcpdump format, > which is convertable into snoop with the right utilities. would you folks(NetApp) be willing to share these utilities? -s -- Cue the music, fade to black, no such thing as no payback. -PWEI [ armijo(a)cs.unm.edu ]

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Sequential reads on NetApps
by Riasat_Amin＠notes.amdahl.com 10 Mar '00

10 Mar '00

Can anybody tell me how the NetApps box performs with sequential reads with a database that has grown slowly over time ? I understand that the WAFL fs does not re-write the modified data block to the same place but writes it anywhere ie. to the current position of the heads. Does this mean that the heads get thrashed around when a full sequential read is performed on the data base and consequentially the reads are slow compared to doing random reads? Any information on this would be gratefully received Rgds Riasat

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RE: filer-side packet tracing.
by Fox, Adam 10 Mar '00

10 Mar '00

> Folks, > > Is there any facility on a filer to run a packet trace similar to > something like snoop or tcpdump on a unix host? > > Yes. pktt will do this. It creates a file in tcpdump format, which is convertable into snoop with the right utilities. Hope this helps. -- Adam Fox NetApp Professional Services, NC adamfox(a)netapp.com

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RE: filer-side packet tracing.
by Sims, Aaron 10 Mar '00

10 Mar '00

I will often use 'ethereal' to load up the packet dumps and view them in a nice graphical manner. You can find ethereal at: http://ethereal.zing.org/ Aaron -- Aaron Sims Professional Services Engineer Network Appliance aaron.sims(a)netapp.com 404-226-7382 (cell) 408-822-8947 (voice mail) > -----Original Message----- > From: Fox, Adam [mailto:Adam.Fox@netapp.com] > Sent: Thursday, March 09, 2000 6:19 PM > To: 'Ronan Mullally'; toasters(a)mathworks.com > Subject: RE: filer-side packet tracing. > > > > Folks, > > > > Is there any facility on a filer to run a packet trace similar to > > something like snoop or tcpdump on a unix host? > > > > > > Yes. pktt will do this. It creates a file in tcpdump format, > which is convertable into snoop with the right utilities. > > Hope this helps. > > -- Adam Fox > NetApp Professional Services, NC > adamfox(a)netapp.com > >

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RE: Filer showing held locks
by Sims, Aaron 10 Mar '00

10 Mar '00

One of the fields that 'lock_dump' produces is the inode for the file held. I will often use 'find' and specify the inode number to figure out which file is locked. You'll probably have to convert the inode number from hex to decimal. Aaron -- Aaron Sims Professional Services Engineer Network Appliance aaron.sims(a)netapp.com 404-226-7382 (cell) 408-822-8947 (voice mail) > -----Original Message----- > From: Muhlestein, Mark [mailto:mark.muhlestein@netapp.com] > Sent: Thursday, March 09, 2000 7:04 PM > To: 'Stephen C. Woods' > Cc: 'toasters(a)mathworks.com' > Subject: RE: Filer showing held locks > > > You can use the rc_toggle_basic command lock_dump: > > lock_dump -f > lock_dump -h > > -f dumps by file, -h dumps by host. > > Mark Muhlestein -- mmm(a)netapp.com > > -----Original Message----- > From: Stephen C. Woods [mailto:scw@seas.ucla.edu] > Sent: Thursday, March 09, 2000 3:17 PM > To: toasters(a)mathworks.com > Subject: Filer showing held locks > > > Is it possable to see file locks on a filer? > That is to say, 'Is there an equivalent to lslk?'. > > ----- > Stephen C. Woods; UCLA SEASnet; 2567 Boelter hall; LA CA 90095; > (310)-825-8614 > Finger for public key scw(a)cirrus.seas.ucla.edu,Internet > mail:scw@SEAS.UCLA.EDU >

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RE: Filer showing held locks
by Muhlestein, Mark 10 Mar '00

10 Mar '00

You can use the rc_toggle_basic command lock_dump: lock_dump -f lock_dump -h -f dumps by file, -h dumps by host. Mark Muhlestein -- mmm(a)netapp.com -----Original Message----- From: Stephen C. Woods [mailto:scw@seas.ucla.edu] Sent: Thursday, March 09, 2000 3:17 PM To: toasters(a)mathworks.com Subject: Filer showing held locks Is it possable to see file locks on a filer? That is to say, 'Is there an equivalent to lslk?'. ----- Stephen C. Woods; UCLA SEASnet; 2567 Boelter hall; LA CA 90095; (310)-825-8614 Finger for public key scw(a)cirrus.seas.ucla.edu,Internet mail:scw@SEAS.UCLA.EDU

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filer-side packet tracing.
by Ronan Mullally 09 Mar '00

09 Mar '00

Folks, Is there any facility on a filer to run a packet trace similar to something like snoop or tcpdump on a unix host? -Ronan

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Filer showing held locks
by Stephen C. Woods 09 Mar '00

09 Mar '00

Is it possable to see file locks on a filer? That is to say, 'Is there an equivalent to lslk?'. ----- Stephen C. Woods; UCLA SEASnet; 2567 Boelter hall; LA CA 90095; (310)-825-8614 Finger for public key scw(a)cirrus.seas.ucla.edu,Internet mail:scw@SEAS.UCLA.EDU

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Re: Tape Drives
by Timothy A. McCarthy 09 Mar '00

09 Mar '00

I would suspect, as most tape libraries do, you can get the info from the LCD console of the library, something like FW info? I am guessing here, maybe someone with a Q47 can chime in with some specifics? --tmac Mark D Fowle wrote: > How do I determine the firmware level of the Q47 ? > > tmac(a)netapp.com on 03/08/2000 12:50:00 PM > > To: Fowle_Mark_D@cat.com@INTERNET > cc: toasters@mathworks.com@INTERNET (bcc: Mark D. Fowle/0V/Caterpillar) > Subject: Re: Tape Drives > Retain Until: 04/07/2000 Retention Category: G90 - Information and > Reports > > Yeah, I know a government customer who does. > > Word of caution: > > If the Q47 is somewhat dated, you should upgrade the firmware > in the library. There is a bug in their firmware that prevents a filer > running 5.3 and later from booting. The Q47 firmware in question > is version 4.41. Moving to anything later than that will be fine, > like 4.43 & 4.53. > > --tmac > > Mark D Fowle wrote: > > > I have a Breece Hill Q-47 tape library, and I was wondering if anyone has a > > library similar to this attached to the netapps ? > > > > Mark Fowle > > Caterpillar

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RE: Problem in ownerships
by Fox, Adam 08 Mar '00

08 Mar '00

> > > > -----Original Message----- > > > From: Andrew Bond [mailto:andrewb@netapp.com] On Behalf Of > > > Bond, Andrew > > > Sent: 08 March 2000 13:25 > > > To: 'Krzysztof Miller' > > > Subject: RE: Problem in ownerships > > > > > > > > > Actually, that's a good point - is the option > > > wafl.root_only_chown set to "on"? > > > > This is the default so you may want to check it. If you turn it > off, the owner should be able to chown a file that he owns. > Also, I seem to remember that some older BSD-based UNIX's (like SunOS 4) have the chown command check the effective UID of the process and if it's not 0, it command errors out before you it even talks to the filesystem, local or NFS. Again, something else to check. -- Adam Fox NetApp Professional Services, NC adamfox(a)netapp.com

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