Storage system

Details Storage system Storage system

2006-12-12

2006-12-12

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006130

Reexamination Certificate

active

07149922

ABSTRACT:
A file server has plural NAS nodes having three processors dispersed in function, a shared cache memory shared between the plural NAS nodes and backed up by a battery, and plural storage devices. A log area for storing data with respect to an access request received by each NAS node is arranged in the shared cache memory. A network processor stores the data with respect to the access request to the log area, and transfers the data of the memory by a DMA at a reading time. Even when a failure is happened in a certain NAS node, another NAS node restores a file system using the log and continues processing to store the data with respect to the access request to the shared cache memory.

REFERENCES:
patent: 5163131 (1992-11-01), Row et al.
patent: 5412801 (1995-05-01), de Remer et al.
patent: 5555389 (1996-09-01), Satoh et al.
patent: 5761705 (1998-06-01), DeKoning et al.
patent: 5896492 (1999-04-01), Chong, Jr.
patent: 5996086 (1999-11-01), Delaney et al.
patent: 6144999 (2000-11-01), Khalidi et al.
patent: 6317844 (2001-11-01), Kleiman
patent: 6345368 (2002-02-01), Bergsten
patent: 6516380 (2003-02-01), Kenchammana-Hoskote et al.
patent: 6526418 (2003-02-01), Midgley et al.
patent: 6578160 (2003-06-01), MacHardy, Jr. et al.
patent: 6622152 (2003-09-01), Sinn et al.
patent: 6631478 (2003-10-01), Wang et al.
patent: 6694447 (2004-02-01), Leach et al.
patent: 6721765 (2004-04-01), Ghosh et al.
patent: 6725392 (2004-04-01), Frey et al.
patent: 6732124 (2004-05-01), Koseki et al.
patent: 7047355 (2006-05-01), Nakatani et al.
patent: 2002/0083111 (2002-06-01), Row et al.
patent: 2002/0133737 (2002-09-01), Novick
patent: 2003/0033383 (2003-02-01), Elnozahy et al.
patent: 2003/0105767 (2003-06-01), Sonoda et al.
patent: 2003/0161468 (2003-08-01), Iwagaki et al.
patent: 2003/0163568 (2003-08-01), Kano et al.
patent: 2003/0163652 (2003-08-01), Tsuge
patent: 2003/0187885 (2003-10-01), Miyazaki et al.
patent: 2003/0195903 (2003-10-01), Manley et al.
patent: 2003/0221075 (2003-11-01), Achiwa et al.
patent: 2003/0225898 (2003-12-01), Saika et al.
patent: 2003/0236944 (2003-12-01), Thompson et al.
patent: 2004/0024977 (2004-02-01), Delaney et al.
patent: 2004/0059869 (2004-03-01), Orsley
patent: 2004/0078508 (2004-04-01), Rivard
patent: 2004/0107318 (2004-06-01), Bono et al.
Daniel D. et al., “Distributed Logging for Transaction Processing” Proceedings of the 1987 ACM SIGMOD International Conference on Management of Data, 1987, pp. 82-96.
xFS Project Architecture, Oct. 8, 1993.
zFS Transaction Mechanism, Oct. 7, 1993
The Log Manageer (xLM), Mar. 28, 1994.
JFS overview, IBM, Feb. 25, 2000.
JFS Log.

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