|
Measures reported by OraRacUnUsaTest
This test reports the space usage metrics of this undo tablespace in each Oracle instance.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| Total_space |
Indicates the total space allocated for this undo tablespace.
|
MB |
|
| Used_space |
Indicates the currently used space of this undo tablespace. |
MB |
A very high value alerts the administrator to allocate additional space to this tablespace. |
| Free_space |
Indicates the amount of free space in this undo tablespace. |
MB |
If this value is very low, it indicates over- utilization of the tablespace. |
| Usage |
Indicates the percentage of used space available in this undo tablespace. |
Percentage |
Typically, a high percentage indicates that the available free space in this undo tablespace is very less. Therefore, to optimize this measure, the administrator is required to allocate sufficient space to this tablespace or tune the undo retention period and figure out the process that takes longer time to query the required data. |
|