Saturday, 20 June 2009

Architecture and Administration Q009

Which background process is responsible for writing the dirty buffers to the database files?



1. DBWn
2. SMON
3. LGWR
4. CKPT
5. PMON



Answer 1 - The DBWn process writes the dirty buffers to the data files under two circumstances - when a checkpoint occurs or when the server process searches the buffer cache for a set threshold.

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