Monitoring detection and removal of malfunctioning devices...

Details Monitoring detection and removal of malfunctioning devices... Monitoring detection and removal of malfunctioning devices...

2005-01-04

2008-12-23

Puente, Emerson C (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S042000, C370S221000

Reexamination Certificate

active

07469361

ABSTRACT:
The detection, removal and reinsertion of possibly malfunctioning devices from an arbitrated loop is disclosed. When a new device is first connected to a storage switch and a loop is formed and begins initialization, a LOOP_DOWN event is sent to a processor and a loop down timer is started for each port in the loop. If initialization is successful, a LOOP_UP event is sent to the processor and the loop down timer is reset for each port in the loop. However, if one of the loop down timers times out, a problem occurred during the initialization. The port associated with the timed out timer is bypassed so that the devices in the remainder of the loop can continue trying to complete the initialization. The processor initiates a PTBI event on the bypassed device. If the bypassed device is operating properly, it is re-inserted back into the loop.

REFERENCES:
patent: 4633468 (1986-12-01), Skatrud et al.
patent: 5132962 (1992-07-01), Hobgood et al.
patent: 6201787 (2001-03-01), Baldwin et al.
patent: 7269131 (2007-09-01), Cashman et al.
patent: 7317719 (2008-01-01), Porter
patent: 2003/0005368 (2003-01-01), Beer et al.
patent: 2006/0146698 (2006-07-01), Ukrainetz et al.

Affiliated with

Also associated with

Rating

Monitoring detection and removal of malfunctioning devices... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Monitoring detection and removal of malfunctioning devices..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monitoring detection and removal of malfunctioning devices... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4027727