HP Insight Management Agents - Manual (Page 113)

Server
System Health
• System Up Time—Elapsed time (in seconds) that the computer has been running since it
was last started. This counter displays the difference between the start time and the current
time.
• Total Threads—Number of threads in the computer at the time of data collection. This count
is an instantaneous count, not an average over the time interval. A thread is the basic
executable entity that can execute instructions in a processor.
• Context Switches/sec—Combined rate at which all processors on the computer are switched
from one thread to another. Context switches occur when a running thread voluntarily
relinquishes the processor, is pre-empted by a higher priority ready thread, or switches
between user mode and privileged (kernel) mode to use an executive or subsystem service.
The context switches/sec rate for all threads running on all processors in the computer is
measured in numbers of switches. Context switch counters on the system and thread objects
display the difference between the values observed in the last two samples, divided by the
duration of the sample interval.
• Processor Queue Length—Number of threads in the processor queue. There is a single queue
for processor time even on computers with multiple processors. Unlike the disk counters,
this counter counts ready threads only, not threads that are running. A sustained processor
queue of greater than two threads generally indicates processor congestion. This counter
displays the last observed value only; it is not an average.
• Total Processes—Number of processes in the computer at the time of data collection. This
count is an instantaneous count, not an average over the time interval. Each process represents
the running of a program.
• % Registry Usage —Percentage of the Total Registry Quota Allowed that is currently being
used by the system. This counter displays the current percentage value only; it is not an
average.
Security
• Access Permission Errors—Number of times opens on behalf of clients has failed with
STATUS_ACCESS_DENIED. This object can indicate random attempts to access files that
are not properly protected.
• Access Granted Errors—Number of times access to files opened successfully were denied.
This object can indicate attempts to access files without proper access authorization.
• Server Logon Errors—Number of failed logon attempts to the server. This object can indicate
whether the password guessing programs are being used to violate the security on the server.
• Server Sessions Errored-Out—Number of sessions that have been closed because of
unexpected error conditions or sessions that have reached the auto-disconnect timeout and
have been disconnected normally.
Server Utilization
• (Network Utilization) Total Bytes/sec—Total bytes per second that a server has sent to and
received from the network. This value provides an overall indication of how busy the server
is.
• Server Sessions—Number of sessions currently active in the server. This object indicates
current server activity.
• Context Block Queue/sec—Rate per second at which the work context blocks must be placed
on the FSP queue of the server to await server action.
• % Total PageFile Usage (Thresholds Supported) —Amount in percent of the Page File instance
in use. For details, see the Process Object: Page File Bytes information.
Sub-system Classification 113