Databases Reference
In-Depth Information
Remotely Running PerfMon
Like many server management tools, an instance of PerfMon can be connected to a remote server
for remote monitoring. This avoids the need to connect via Remote Desktop and may reduce the
overhead of monitoring on the target server.
To run PerfMon against a remote server, when adding counters, specify the target server name,
replacing <Local computer> in the “Select counters from computer” drop-down box (see Figure 10-7).
In order to use PerfMon remotely, you'll need to be a Local Administrator on the target server, and
the remote registry service should be running.
FIGURE 10-7
Factors to Consider When Running PerfMon
Monitoring servers adds overhead but it can be necessary. All data capture tools impose some cost
to the target server. Our challenge is to resolve an incident (often performance related) while mini-
mizing the overhead. When monitoring, you should consider performance implications with a view
to reducing overhead and minimizing two main risks:
➤
Making problems worse
➤
Affecting data capture
PerfMon counters are themselves updated by the application, even when not consumed by PerfMon.
Therefore, any performance overhead with PerfMon is only usually encountered when polling (or
sampling) these counters and when writing these to disk if a collector has been set up.
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