Okey, sorry for the second reply, but I understand traps much better now.

I don't understand what you mean about "without killing it"? Do you mean running the script I wrote ala traps, thereby meaning "killing the script". Or instead are you insinulating that traps can have adverse effects on the Filer? I can't see how the latter can be true, so please elaborate if you would.

For my purposes, error detection and reporting, traps seem to be the way to go, however I'm reluctant to use them for the following reasons: 1) Traps add a layer of complexity that is uncomfortable 2) Traps make any application very difficult to easily distribute. This is mostly due to the added necessity to run and configure a trap daemon. 3) It still doesn't replace the need for direct OID querries, in that traps are triggered when the netapp thinks they should... I don't yet trust OnTap that much. 4) In writing an application to report and notify on the traps you now have to write an application to parse the traps logs from trapd, rather than let an OID value set a variable directly. This considerably can add to complexity, since I don't want reporting to occur if it doesn't have to.

Can anyone shed so light that might reassure me? Is anyone using traps in custom applications at their site with some pointers? I only really became interested in traps when I looked for them in the MIB and found all the traps to be fault related and mostly proactive which is a BIG plus. Helpful hints from experience are appreciated.

Ben Rockwood UNIX Systems Admin Homestead Inc.

-----Original Message----- From: Thomas.L.White@jpmorgan.com [mailto:Thomas.L.White@jpmorgan.com] Sent: Friday, December 14, 2001 7:11 AM To: Jose Celestino Cc: Ben Rockwood; toasters@mathworks.com Subject: Re: UCD SNMP and NetApp MIBs

Have you ever tried to get an SNMP out of one of those traps without killing it ??

tw

Jose Celestino japc@co.sapo.pt@mathworks.com on 12/14/2001 08:39:44 AM

Sent by: owner-toasters@mathworks.com

To: Ben Rockwood BRockwood@homestead-inc.com cc: toasters@mathworks.com Subject: Re: UCD SNMP and NetApp MIBs

Is there any reason not to use snmp traps ?

Thus spake Ben Rockwood, on Wed, Dec 12, 2001 at 04:47:21PM -0800:

Hello Toasters.

I'm trying to write a simple dainty application to check for drive failures in our Filers. I'm going to implement this app in a PERL script which will use UCD SNMP to pull variables from the Filers. The problem is that when I walk the SNMP tree on a Filer I only get

network

statistics. I'm getting info in the following manner:

# export MIBFILE="/usr/local/share/snmp/mibs/netapp_1_5.mib" # snmpwalk -v 1 bigfiler public

I get about 2027 lines of output with IP, TCP, UDB, SNMP stats, plus address translation tables. But what I really want to see is the the RAID tables. Any idea what I need to do? I've found no help elsewhere on the net, including NetApp's NOW site. I DID find one page on NOW that listed several SNMP Groups found in the MIB, but I don't know how to access them.

Any help is appreciated.

Ben Rockwood brockwood@homestead-inc.com

-- Jose Celestino japc@co.sapo.pt ---------------------------------