System and method for detecting false positive information...

Details System and method for detecting false positive information... System and method for detecting false positive information...

2006-06-28

2009-06-02

Maskulinski, Michael C (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S044000

Reexamination Certificate

active

07543190

ABSTRACT:
False positive error warnings associated with hot insertion or removal of a device with an SAS link are filtered by comparing the timing of error warnings with the timing of hot insertion or removal of the device. An SCSI Enclosure Processor monitors physical device presence events through a side band bus, such as an I2C bus interfaced with physical devices. Upon detection of an error associated with the SAS link, an error filter module retrieves time stamped physical device presence events from the SCSI Enclosure Processor, compares the time stamp of the physical device presence event and suppresses the warning if the time stamp falls within a predetermined time of the error.

REFERENCES:
patent: 2002/0194548 (2002-12-01), Tetreault
patent: 2004/0003327 (2004-01-01), Joshi et al.
patent: 2005/0204197 (2005-09-01), Uddenberg et al.
patent: 2006/0074583 (2006-04-01), Bieker et al.

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