Snapshot Information Level Database Table Space Application |
API Structure(s) sqlm_dbase sqlm_tablespace sqlm_bp_info sqlm_appl |
Monitor Group Buffer Pool Buffer Pool Buffer Pool Buffer Pool |
Resettable |
Yes |
|
Event Information Level Database Connection Table Space |
API Structure(s) sqlm_db_event sqlm_conn_event sqlm_tablespace_event |
|
API Element Name Element Type |
direct_writes counter |
Description: The number of write operations that do not use the buffer pool.
Usage: Use the following formula to calculate the average number of sectors that are written by a direct write.
direct writes to database / direct write requests
When using system monitors to track I/O, this data element helps you distinguish database I/O from non-database I/O on the device.
Direct writes are performed in units, the smallest being a 512-byte sector. They are used when:
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