Information Technology Reference
In-Depth Information
Because Active Directory is tightly integrated with DNS, you also need to review the DNS
Server logs on DCs configured with this role. The DNS Server log contains events pertaining to
availability and replication of zone data as well as the status of the DNS Server service. In addi-
tion, the DFS Replication log displays events related to Sysvol replication, which is important for
replication of GPOs, scripts, and other files in the Sysvol share.
Task Manager provides a straightforward look at the performance of a Windows computer. It
gives you a real-time view of running processes and the resources they're using. In addition, you
can fine-tune certain aspects of running processes' performance. To start Task Manager, you can
right-click the taskbar and click Task Manager, press Ctrl+Alt+Delete and click Start Task
Manager, or type Taskmgr at a command prompt.
Notable additions to Windows Task Manager in Windows Server 2008 are a Services tab
and Resource Monitor, opened from the Performance tab. The Services tab displays a snapshot
of loaded services and access to the Services MMC with the click of a button. Resource Monitor
(see Figure 13-11) shows a real-time graphical display of these key performance indicators:
• CPU utilization
• Disk utilization
• Network utilization
• Memory utilization
Figure 13-11
Tracking performance indicators in Resource Monitor
Spikes in resource use are common and expected, but if a key indicator approaches 100%
utilization and stays at that level for an extended period, server performance is likely suffer-
ing. Memory use should stay fairly constant, except when processes or services are being
loaded and unloaded. Be aware of resource interaction. If memory use is high, the need for
virtual memory increases. Use of virtual memory increases hard disk activity and, to some
extent, CPU utilization. Because of these interactions, the need for adequate RAM in a server
can't be overstated.
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