Using SNMP you can get all kinds of stats on reads/writes/creates/renames/ mkdirs/rmdirs/symlinks etc. Not sure if there's one in there for locks or not.

Frank

--On Monday, June 09, 2003 13:40:12 +0100 Edward Hibbert EH@dataconnection.com wrote:

This gives NFS calls - anyone know anything that counts lock/unlock calls too?

Regards,

Edward Hibbert Internet Applications Group Data Connection Ltd Tel: +44 131 662 1212 Fax: +44 131 662 1345 Email: eh@dataconnection.com Web: http://www.dataconnection.com

-----Original Message----- From: Steve Losen [mailto:scl@sasha.acc.virginia.edu] Sent: Monday, June 09, 2003 1:00 PM To: Brian Tao Cc: toasters@mathworks.com Subject: Re: NFS/snapshot activity log

...

What do people do to track NFS activity on their filers?

Basically a real-time audit log on the filer showing NFS calls, file sizes, pathname info, uid, etc. I often run into situations where I can see a filer filling up very quickly (or the snapshot reserve doing the same thing), but no way of figuring who/what is doing it. I could sniff the network for NFS packets and decode them, but it seems the best place to look for this information is on the filer. It can probably make better sense of NFS streams than picking off individual packets.

You can use nfsstat like this:

options nfs.per_client_stats.enable on nfsstat -z

This causes the filer to accumulate per client nfs statistics and nfsstat -z zeroes all counters. Now let the filer run for a little while and run

nfsstat -l

This will give you a summary of total nfs ops by each client since the nfsstat -z. This will allow you to determine which clients are "hot".

To see detailed counts for a particular client, use

nfsstat -h hostname

This will show if the client is doing any writes. You still won't know which files are being written, though.

Steve Losen scl@virginia.edu phone: 434-924-0640

University of Virginia ITC Unix Support

-- Frank Smith fsmith@hoovers.com Systems Administrator Voice: 512-374-4673 Hoover's Online Fax: 512-374-4501