Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2011-03-22
2011-03-22
Ellis, Kevin L (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C710S020000, C714S006130
Reexamination Certificate
active
07913039
ABSTRACT:
A storage system includes a plurality of disk apparatuses configuring a plurality of RAID groups, a spare disk apparatus, and a controller. The controller is adapted to copy data stored in a disk apparatus, whose error count exceeds a first threshold, to the spare disk apparatus. If an error count of a disk apparatus included in a RAID group exceeds a second threshold which is lower than the first threshold, the controller is adapted to check error counts of other disk apparatuses included in the same RAID group. If any of the error counts of the other disk apparatuses included in the same RAID group exceeds the second threshold, the controller is adapted to change the first value of the first disk apparatus and the other disk apparatuses included in the same RAID group.
REFERENCES:
patent: 5267242 (1993-11-01), Lavallee et al.
patent: 5537567 (1996-07-01), Galbraith et al.
patent: 5611069 (1997-03-01), Matoba
patent: 5734818 (1998-03-01), Kern et al.
patent: 5802264 (1998-09-01), Chen et al.
patent: 5959860 (1999-09-01), Styczinski
patent: 5974544 (1999-10-01), Jeffries et al.
patent: 6044444 (2000-03-01), Ofek
patent: 6070249 (2000-05-01), Lee
patent: 6154853 (2000-11-01), Kedem
patent: 6223252 (2001-04-01), Bandera et al.
patent: 6243827 (2001-06-01), Renner
patent: 6324654 (2001-11-01), Wahl et al.
patent: 6442711 (2002-08-01), Sasamoto et al.
patent: 6598174 (2003-07-01), Parks et al.
patent: 6615314 (2003-09-01), Higaki et al.
patent: 6647514 (2003-11-01), Umberger et al.
patent: 6799283 (2004-09-01), Tamai et al.
patent: 2002/0065999 (2002-05-01), Kikuchi et al.
patent: 2002/0066050 (2002-05-01), Lerman et al.
patent: 2003/0056142 (2003-03-01), Hashemi
patent: 2003/0101316 (2003-05-01), Krishnamurthy
patent: 2003/0120863 (2003-06-01), Lee et al.
patent: 2003/0120864 (2003-06-01), Lee et al.
patent: 2003/0120869 (2003-06-01), Lee et al.
patent: 2003/0188101 (2003-10-01), Fore et al.
patent: 2004/0160975 (2004-08-01), Frank et al.
patent: 2004/0190183 (2004-09-01), Tamai et al.
patent: 2004/0260967 (2004-12-01), Guha et al.
patent: 2005/0060618 (2005-03-01), Guha
patent: 07-129331 (1995-05-01), None
patent: 07-200191 (1995-08-01), None
patent: 08-147112 (1996-06-01), None
patent: 10-254634 (1998-09-01), None
patent: 10-333841 (1998-12-01), None
patent: 11-243451 (1999-09-01), None
patent: 11-345095 (1999-12-01), None
Alvarez et al. “Tolerating multiple failures in RAID architectures with optimal storage and uniform declustering,” Proceedings of the 24th annual international symposium on Computer architecture pp. 62-72 (1997).
Cohen et al. “Segmented information dispersal (SID) for efficient reconstruction in fault-tolerant video servers,” Proceedings of the fourth ACM international conference on Multimedia pp. 277-286 (1997).
Hou “Comparing rebuild algorithms for mirrored and RAID5 disk arrays,” Proceedings of the 1993 ACM SIGMOD international conference on Management of data pp. 317-326 (1993).
Menon et al. “Comparison of sparing alternatives for disk arrays,” Proceedings of the 19th annual international symposium on Computer architecture pp. 318-329 (1992).
Mogi et al. “Hot mirroring: a method of hiding parity update penalty and degradation during rebuilds for RAID5,” Proceedings of the 1996 ACM SIGMOD international conference on Management of data pp. 183-194 (1996).
Muntz et al. “Performance Analysis of Disk Arrays Under Failure,” Proceedings of the 16th Conference on Very Large Databases. (VLDB) pp. 162-173 (1990).
Patterson et al. “A Case for Redundant Arrays of Inexpensive Disks (RAID),” In Proceedings of the ACM SIGMOD International Conference on Management of Data (Chicago, IL). pp. 109-116. (1988).
Fukuoka Mikio
Matsunami Naoto
Nakano Toshio
Okamoto Takeki
Takamoto Ken-ichi
Bradley Matthew
Ellis Kevin L
Hitachi , Ltd.
Mattingly & Malur, P.C.
LandOfFree
Array-type disk apparatus preventing data lost and providing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Array-type disk apparatus preventing data lost and providing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Array-type disk apparatus preventing data lost and providing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2659794