On Sep 11, 3:46 am, Jason J. <Jason J...@discussions.microsoft.com>
wrote:

One way of monitoring WMS:

- Get yourself familiar with SNMP (http://en.wikipedia.org/wiki/Snmp)
SNMP has many features, one of them is to request (performance) data
from another machine on the network.

- Get yourself familiar with Cacti (http://www.cacti.net)
Cacti is best installed on a dedicated monitoring server and requires
PHP, Apache and MySQL.
Cacti is then configured to pull performance data from your WMS
servers using SNMP (and more) to create graphs using RRD-tool.
You will either need to find prefab templates or create your own
templates and scripts for WMS.
This will require some major fiddling, once properly set up it is very
much worth the effort.
While you are at it, also configure CPU, memory, process, disk, cache,
and network performance data for some more fancy graphs :-).

- You might want to install 'SNMP Informant - Advanced agent' on your
WMS servers.
SNMP Informant AA will make additional WMS performance data (and more)
available for the Windows SNMP service.
(check the windowsMedia* subtree(s) http://www.wtcs.org/informant/adv/snmp-informant-adv-tree.htm)
The agent is not completely free, will set you back a couple of bucks
but it is worth the hassle 100%.

Couple of WMS specific counters I use are, LateSendRate, LateReadRate,
StreamErrorRate, FileReadRate, ConnectionRate, ConnectionQueueLength,
ConnectedPlayers, StreamingPlayers. If you serve video-on-demand you
will also want some more advanced disk stats like IOps, ReadWriteTime,
ReadWriteBytes, QueueLength etc.

If you also want alerting you will need a completely different
application on your monitoring server.
We use good old Nagios.org but that is another story...