I don't have any experience with using Data Collection on NetView.
However, I have written a number of in-house facilities to proactively
gather performance management data on a dynamic network.  I preferred
this method as it is more tunable than the off the shelf products I have
seen.  The NetView APIs can be very helpful for this as they have direct
access to NV DBs, OVw, etc.

Jason Allison
Principal Engineer
ARINC Incorporated


-----Original Message-----
From: owner-nv-l AT lists.us.ibm DOT com [mailto:owner-nv-l AT lists.us.ibm DOT 
com]
On Behalf Of Liu, David
Sent: Tuesday, January 11, 2005 3:54 AM
To: 'nv-l AT lists.tivoli DOT com'
Subject: [nv-l] NV tuning for Data collection 


Hi list,

I've been reading nv-l archives for quite some times and benefit from
them. Now I post my first question to get your advice/help.

We are collecting quite a lot data every 15 mins (supposed to), but till
now only part of the collection happened (everyday less than half i.e.
40 collections per definition per device, sometimes even null). My basic
question is: can NV handle that many collections? Because when I
suspended more than half of the collections (interface data). It seemed
working fine. If yes, how can I tune the NV? Where can I find the
document for the tuning (snmpCollect daemon settings)?

Here's some basic info.

NV 7.1.2 on Solaris 2.8.

Data collection of about 600 devices with

1) SysUptime for all of them

2) cpmCPUTotal5min for 400 devices (cisco)

3) ciscoMemoryPoolUsed for 400 devices

4) ciscoMemoryPoolFree for 400 devices

5) ifInUcastPkts, ifOutUcastPkts, ifInErrors, ifOutErrors,
ifAdminStatus, ifOperStatus, ifLastChange, ifInOctets, ifOutOctets,
ifInDiscards, ifOutDiscards, ifInNUcastPkts, ifOutNUcastPkts for about
200 devices with lot of interfaces

6) Some latency data for 10 routers

Our current snmpCollect (daemon) settings:

Defer time:                     60
Max PDU:                                50
Config check interval:          1440 
Max concurrent SNMP sessions: 50
Verbose trace mode :            Yes
Polling interval for nvcold:    60

Thank you in advance.

Regards,
David