Electrical computers and digital processing systems: support – Clock – pulse – or timing signal generation or analysis
Reexamination Certificate
2007-08-07
2007-08-07
Cao, Chun (Department: 2115)
Electrical computers and digital processing systems: support
Clock, pulse, or timing signal generation or analysis
C713S001000, C713S152000, C713S155000, C713S152000
Reexamination Certificate
active
10322935
ABSTRACT:
Systems and methods for I/O fencing in a shared storage environment are provided. Prior to initiating an I/O request, when feasible, the current time from a local timer is compared to the current state of an interval obtained for the target device. As a result, a device reset occurring while the interval is viable does not arbitrarily end a multiphase I/O operation. However, a device reset occurring once the lease has expired results in a delay or termination of the multiphase I/O operation. As a result, multiphase I/O operations from initiating hosts that have lost contact with the shared storage environment are not allowed to corrupt the shared storage devices.
REFERENCES:
patent: 5390326 (1995-02-01), Shah
patent: 5511220 (1996-04-01), Perlman
patent: 5625796 (1997-04-01), Kaczmarczyk et al.
patent: 5659688 (1997-08-01), Nimishakavi et al.
patent: 5999930 (1999-12-01), Wolff
patent: 6173293 (2001-01-01), Thekkath et al.
patent: 6192483 (2001-02-01), Moiin et al.
patent: 6226717 (2001-05-01), Reuter et al.
patent: 6345331 (2002-02-01), Fuente
patent: 6389420 (2002-05-01), Vahalia et al.
patent: 6484217 (2002-11-01), Fuente et al.
patent: 6526489 (2003-02-01), Kikuchi et al.
patent: 6530004 (2003-03-01), King et al.
patent: 6553511 (2003-04-01), DeKoning et al.
patent: 6622163 (2003-09-01), Tawill et al.
patent: 6658417 (2003-12-01), Stakutis et al.
patent: 6763402 (2004-07-01), Talati
patent: 6862690 (2005-03-01), Bezera et al.
patent: 6993763 (2006-01-01), Hayes, Jr.
patent: 2002/0152214 (2002-10-01), Muntz
patent: 2003/0221124 (2003-11-01), Curran et al.
Colgrove John A.
Karr Ronald S.
Kiselev Oleg
Cao Chun
Kivlin B. Noäl
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Tran Vincent
Veritas Operating Corporation
LandOfFree
Systems and method providing input/output fencing in shared... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Systems and method providing input/output fencing in shared..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and method providing input/output fencing in shared... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3881553