7.221 V$FILESTAT
V$FILESTAT
displays the number of physical reads and writes done and the total number of single-block and multiblock I/Os done at file level.
As of Oracle Database 10g Release 2 (10.2), this view also includes reads done by RMAN processes for backup operations.
Column | Datatype | Description |
---|---|---|
|
|
Number of the file |
|
|
Number of physical reads done |
|
|
Number of times DBWR is required to write |
|
|
Number of physical blocks read |
|
|
Number of physical reads from Database Smart Flash Cache blocks |
|
|
Number of blocks written to disk, which may be the same as |
|
|
Number of single block reads |
|
|
Time (in hundredths of a second) spent doing reads if the |
|
|
Time (in hundredths of a second) spent doing writes if the |
|
|
Cumulative single block read time (in hundredths of a second) |
|
|
Average time (in hundredths of a second) spent on I/O, if the |
|
|
Time (in hundredths of a second) spent doing the last I/O, if the |
|
|
Minimum time (in hundredths of a second) spent on a single I/O, if the |
|
|
Maximum time (in hundredths of a second) spent doing a single read, if the |
|
|
Maximum time (in hundredths of a second) spent doing a single write, if the |
|
|
The ID of the container to which the data pertains. Possible values include:
|