Queued posted-write disk write method with improved error...

Details Queued posted-write disk write method with improved error... Queued posted-write disk write method with improved error...

G - Physics

06

F

354/241, 354/230

G06F 11/00 (2006.01) G06F 11/07 (2006.01) G06F 11/14 (2006.01) G06F 12/08 (2006.01)

Patent

CA 1319440

QUEUED POSTED-WRITE DISK WRITE METHOD WITH IMPROVED ERROR HANDLING ABSTRACT A posted-write queuing program for writing informa- tion sectors to disk sectors includes error-handling rou- tines to minimize the risk of data loss upon specified types of errors. Upon timeouts, queuing is suspended and all information sectors pending in the queue are written out to the corresponding disk sectors. Upon specified types of write errors, queuing is discontinued and repeat- ed attempts are made to write out all information sectors to the corresponding disk sectors. For each unsuccessful attempt, the corresponding information sector is saved in the queue; the user is alerted, and subsequent read or write requests directed to the corresponding disk sector is serviced from the saved information sector in the queue.

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