DBA_HIST_COMP_IOSTAT displays information about I/O statistics aggregated on the component level.
| Column | Datatype | NULL | Description |
|---|---|---|---|
SNAP_ID |
NUMBER |
NOT NULL |
Unique snapshot ID |
DBID |
NUMBER |
NOT NULL |
Database ID for the snapshot |
INSTANCE_NUMBER |
NUMBER |
NOT NULL |
Instance number for the snapshot |
COMPONENT |
VARCHAR2(64) |
NOT NULL |
Component name |
FILE_TYPE |
VARCHAR2(64) |
NOT NULL |
File type |
IO_TYPE |
CHAR(5) |
NOT NULL |
The type of I/O performed |
OPERATION |
CHAR(5) |
NOT NULL |
Operation name |
BYTES |
NUMBER |
NOT NULL |
Number of bytes |
IO_COUNT |
NUMBER |
NOT NULL |
Number of I/Os that were performed |