% Read Cache Hit Ratio (MEMRCache)
This parameter displays the percentage of logical reads that are in the buffer cache. You can use this parameter to monitor the effectiveness of system buffering. If you run I/O intensive applications and have a large memory configuration, you might reconfigure the buffering so that the read cache hit ratio is about 95 percent.
Default parameter attributes
Attribute | Default value |
|---|---|
Application class | MEMORY |
Command type | not applicable |
Platform | AIX, HP-UX, Sequent DYNIX/ptx |
Icon style | graph |
Unit | percentage of logical reads |
Border range | 0-100 percent |
Alarm1 range | 10-20 percent: warn |
Alarm2 range | 1-10 percent: alarm |
Scheduling (poll time) | inherits poll time of collector |
Active at installation | yes |
Parameter type | consumer |
Value set by | DCM Exceptions : All |
BMC ProactiveNet Performance Management properties
Property | Default value |
|---|---|
Monitor type | Memory |
Key Performance Indicator | No |
Monitor for abnormalities | Yes |
Graph by default | No |
Availability | No |
Response time | No |
Normal distribution | Yes |
Statistical | Yes |