Autonomic hardware-level storage device data integrity checking

Details Autonomic hardware-level storage device data integrity checking Autonomic hardware-level storage device data integrity checking

2004-06-10

2009-10-06

Shin, Christopher B (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output command process

C711S163000, C714S054000, C714S100000

Reexamination Certificate

active

07600051

ABSTRACT:
A system and method for autonomically monitoring data integrity during logical and physical storage and retrieval of data by a storage device. In one embodiment, the method of the present invention includes scheduling data integrity checking in accordance with an operative input/output (I/O) state of the storage device. The scheduling preferably includes first retrieving an I/O command, such as a read or write command, from a disk interface controller and determining whether or not the I/O command has been pre-marked for data checking. In response to the I/O command not being marked for prescribed data checking, a further determination is made of whether or not data integrity checking is required in association with the object I/O command as specified by scheduler rules. Responsive to determining that a data integrity check is required in association with the I/O command, the I/O command is marked as requiring an associated data integrity check.

REFERENCES:
patent: 6903887 (2005-06-01), Asano et al.
patent: 7007141 (2006-02-01), Li et al.
patent: 2002/0144057 (2002-10-01), Li et al.

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