Category: Database

When does the DBWn actually write to disk?,”The DBWn process writes dirty buffers to disk under the following conditions:• When a server process cannot find a clean reusable buffer after scanning a threshold number of buffers, it signals DBWn to write. DBWn writes dirty buffers to disk asynchronously while performing other processing.• DBWn writes buffers to advance the checkpoint, which is the position in the redo thread (log) from which instance recovery begins. This log position is determined by the oldest dirty buffer in the buffer cache.In all cases

Database

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