Write-Modified Index Blocks During System Idle Time
Original Publication Date: 1984-May-01
Included in the Prior Art Database: 2005-Feb-04
The disclosed Storage Access Method (SAM) for a word processing system uses a priority request scheme and Auto-Requests to cause modified memory-resident index blocks to be written to a storage volume during times when the SAM is not servicing system application requests. The time to complete an application service request is not significantly delayed, since servicing an Auto-Request is not initiated until all queued application requests have been completed. Initiation of the next application service request while processing an Auto-Request is delayed at most until the current index block has been processed. For normal system operations, Checkpoint and document revision termination (close) requests complete much quicker, since there are no modified index nodes which need to be written to the storage volume.