| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Db_cache_hit_ratio
|
Shows the
percentage of database requests that were fulfilled by the information
store cache without incurring disk input/output activity. |
Percent
|
A significantly low value indicates that the Exchange Server 5.5 is
not having enough free memory. Increasing the memory may solve this
problem.
|
| Db_tables_cache_hit_ratio
|
Shows the
percentage of database tables opened using the cached schema
information. |
Percent
|
A significantly low value indicates that the Exchange Server 5.5 is
not having enough free memory. Increasing the memory may solve this
problem.
|
| Log_recrd_waiting_rate
|
Shows the number
of log records that cannot be added to the log buffers because the log
buffers are full. |
Recrds/Sec
|
This measure should be as close to zero as
possible.
If it is not, it might indicate that the size
of the log buffer might be a bottleneck. Increasing the memory may
solve this problem.
|
| Log_thread_waiting
|
Shows the number
of threads waiting for their data to be written to the log buffer so
that the update of the database can be completed. |
Number
|
This measure should be as low as possible.
A high value for this measure may indicate that
the log buffer might be a bottleneck. Increasing the memory may solve
this problem.
|