Aug 14, 2015 2:02:00 PM by Quest Software
|Disks for redo devices|
When a transaction is committed, the redo log entry in the redo log buffer must be written to disk. The characteristics of the redo log writes are very different from that of the data file I/O. The differences include:
These factors combined suggest that transaction processing is optimized if a redo log is on a dedicated disk device. If your database is primarily read-only, redo log I/O is unlikely to be an issue, and the redo logs can be placed in (virtually) any convenient location.
Written by Quest Software