| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Db_cache_hit_ratio
|
This measure
shows the percentage of database requests that were fulfilled by the
database buffer pool without incurring disk input/output activity. |
Percent
|
A significantly low value indicates that the Exchange 2000/2003/2007 Server is
not having enough free memory. Increasing the memory may solve this
problem.
|
| Db_tables_cache_hit_ratio
|
This measure
shows the percentage of database tables opened using the cached schema
information. |
Percent
|
A significantly low value indicates that the Exchange 2000/2003/2007 Server is
not having enough free memory. Increasing the memory may solve this
problem.
|
| Log_recrd_waiting_rate
|
This measure
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
|
This measure
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.
|