|
Measures reported by IfxChunkTest
A chunk is the largest unit of physical disk dedicated to database server data storage. This test collects the performance statistics pertaining to the disk space and disk I/O of a chunk.
The measures made by this test are as
follows:
| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Chunk_size |
The total size of a chunk |
Pages
|
|
| Free_space |
The amount of unused space in a chunk
|
Pages
|
|
| Pct_used |
The percentage of space used in a chunk
|
Percent
|
|
| Status |
The status of chunk
|
Number
|
Possible values are:
0 - Normal
1 - Recovering
2 - Offline
3 - Inconsistent |
| Read_rate |
The rate of disk reads
|
Reads/Sec
|
|
| Write_rate |
The rate of disk writes
|
Writes/Sec
|
|
| Pages_read |
The number of pages read from the chunk per second
|
Pages/Sec
|
|
| Pages_written |
The number of pages written to the chunk per second
|
Pages/Sec
|
|
|