Universal multi-path driver for storage systems including an...

Details Universal multi-path driver for storage systems including an... Universal multi-path driver for storage systems including an...

2008-07-29

2008-07-29

Lohn, Joshua A (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S043000, C709S239000

Reexamination Certificate

active

10996271

ABSTRACT:
An embodiment of the invention is a technique for monitoring via a universal multipath driver (UMD) a first path to one of a plurality of virtual device objects. The virtual device objects are created by the UMD and correspond to a plurality of functional device objects. The functional device objects are created by a plurality of lower level drivers and correspond to a plurality of real physical devices having M device types including an external boot device. The UMD is a functional driver of each of the functional device objects. The lower level drivers control the real physical devices. The UMD detects a failure of the first path to a first virtual device object corresponding to a first real physical device and performs one of failover and failback for the first real physical device.

REFERENCES:
patent: 5119488 (1992-06-01), Takamatsu et al.
patent: 5732269 (1998-03-01), Compton et al.
patent: 5758055 (1998-05-01), Ono
patent: 5944838 (1999-08-01), Jantz
patent: 5987621 (1999-11-01), Duso et al.
patent: 6298451 (2001-10-01), Lin
patent: 6802021 (2004-10-01), Cheng et al.
patent: 6804703 (2004-10-01), Allen et al.
patent: 6823477 (2004-11-01), Cheng et al.
patent: 6857026 (2005-02-01), Cain
patent: 6883108 (2005-04-01), Lee et al.
patent: 6904477 (2005-06-01), Padmanabhan et al.
patent: 6909695 (2005-06-01), Lee et al.
patent: 6952792 (2005-10-01), Emberty et al.
patent: 7003687 (2006-02-01), Matsunami et al.
patent: 7222348 (2007-05-01), Athreya et al.
patent: 7269134 (2007-09-01), Soga
patent: 2003/0172331 (2003-09-01), Cherian et al.
patent: 2003/0200477 (2003-10-01), Ayres
patent: 2004/0107300 (2004-06-01), Padmanabhan et al.
patent: 2005/0091441 (2005-04-01), Qi et al.

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