Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2006-02-21
2006-02-21
Iqbal, Nadeem (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S006130, C714S005110, C714S004110
Reexamination Certificate
active
07003688
ABSTRACT:
A fibre channel storage area network (SAN) provides virtualized storage space for a number of servers to a number of virtual disks implemented on various virtual redundant array of inexpensive disks (RAID) devices striped across a plurality of physical disk drives. The SAN includes plural controllers and communication paths to allow for fail-safe and fail-over operation. The plural controllers can be loosely-coupled to provide n-way redundancy and have more than one independent channel for communicating with one another. In the event of a failure involving a controller or controller interface, the virtual disks that are accessed via the affected interfaces are re-mapped to another interface in order to continue to provide high data availability. In particular, a common memory storage device is connected to the back-ends of every controller to provide a storage area. In this manner, the common memory storage device can be accessed via operations similar to those a controller already uses to presently access the physical disks which are connected to the back-end of the controllers.
REFERENCES:
patent: 4858152 (1989-08-01), Estes
patent: 5499340 (1996-03-01), Barritz
patent: 5715389 (1998-02-01), Komori et al.
patent: 5726910 (1998-03-01), Toma
patent: 5745692 (1998-04-01), Lohmann, II et al.
patent: 5895493 (1999-04-01), Gatica
patent: 6023507 (2000-02-01), Wookey
patent: 6289368 (2001-09-01), Dentler et al.
patent: 6295619 (2001-09-01), Hasbun et al.
patent: 6327677 (2001-12-01), Garg et al.
patent: 6425006 (2002-07-01), Chari et al.
patent: 6523130 (2003-02-01), Hickman et al.
patent: 6567889 (2003-05-01), DeKoning et al.
patent: 6618798 (2003-09-01), Burton et al.
patent: 6654831 (2003-11-01), Otterness et al.
patent: 6823336 (2004-11-01), Srinivasan et al.
patent: 2002/0083118 (2002-06-01), Sim
patent: 2002/0138559 (2002-09-01), Ulrich et al
patent: 2002/0161855 (2002-10-01), Manczak et al.
patent: 2003/0212804 (2003-11-01), Hicken et al.
patent: 2004/0148380 (2004-07-01), Meyer et al.
Olson Mark David
Pittelkow Michael Henry
Bonura Timothy M.
Iqbal Nadeem
McDermott Will & Emery LLP
Xiotech Corporation
LandOfFree
System and method for a reserved memory area shared by all... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for a reserved memory area shared by all..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for a reserved memory area shared by all... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3677780