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Class Information
Number: 714/6
Name: Error detection/correction and fault detection/recovery > Data processing system error or fault handling > Reliability and availability > Fault recovery > By masking or reconfiguration > Of memory or peripheral subsystem > Redundant stored data accessed (e.g., duplicated data, error correction coded data, or other parity-type data)
Description: Subject matter further including means or steps for recovery by accessing redundant stored data.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6996766 |
Error detection/correction code which detects and corrects a first failing component and optionally a second failing component |
Feb. 7, 2006 |
| 6993610 |
Data storage system having two disk drive controllers each having transmit and receive path connected in common to single port of disk drive via buffer or multiplexer |
Jan. 31, 2006 |
| 6993636 |
Subsystem and method of organizing multiplexed data |
Jan. 31, 2006 |
| 6993677 |
System and method for data verification in a RAID system |
Jan. 31, 2006 |
| 6993701 |
Row-diagonal parity technique for enabling efficient recovery from double failures in a storage array |
Jan. 31, 2006 |
| 6990603 |
Method and apparatus for securing volatile data in power failure in systems having redundancy |
Jan. 24, 2006 |
| 6990604 |
Virtual storage status coalescing with a plurality of physical storage devices |
Jan. 24, 2006 |
| 6990605 |
Methods and apparatus for recovering work of one computer by another computers |
Jan. 24, 2006 |
| 6990606 |
Cascading failover of a data management application for shared disk file systems in loosely coupled node clusters |
Jan. 24, 2006 |
| 6990611 |
Recovering data from arrays of storage devices after certain failures |
Jan. 24, 2006 |
| 6988165 |
System and method for intelligent write management of disk pages in cache checkpoint operations |
Jan. 17, 2006 |
| 6988171 |
Method and system for recovery of meta data in a storage controller |
Jan. 17, 2006 |
| 6988176 |
Method and apparatus for data duplexing in storage unit system |
Jan. 17, 2006 |
| 6988219 |
Providing parity in a RAID sub-system using non-volatile memory |
Jan. 17, 2006 |
| 6988220 |
Technique for increasing the number of persistent consistency point images in a file system |
Jan. 17, 2006 |
| 6985971 |
Testing method of array configuration for multiple disk-array system |
Jan. 10, 2006 |
| 6985995 |
Data file migration from a mirrored RAID to a non-mirrored XOR-based RAID without rewriting the data |
Jan. 10, 2006 |
| 6985996 |
Method and apparatus for relocating RAID meta data |
Jan. 10, 2006 |
| 6986075 |
Storage-device activation control for a high-availability storage system |
Jan. 10, 2006 |
| 6983335 |
Disk drive managing method for multiple disk-array system |
Jan. 3, 2006 |
| 6983352 |
System and method for point in time backups |
Jan. 3, 2006 |
| 6983396 |
Apparatus for reducing the overhead of cache coherency processing on each primary controller and increasing the overall throughput of the system |
Jan. 3, 2006 |
| 6983397 |
Method, system, and program for error handling in a dual adaptor system where one adaptor is a master |
Jan. 3, 2006 |
| 6981057 |
Data storage with stored location data to facilitate disk swapping |
Dec. 27, 2005 |
| 6981115 |
Method of data backup in a computer system and a storage system therefor |
Dec. 27, 2005 |
| 6981170 |
Control method of storage control apparatus and storage control apparatus |
Dec. 27, 2005 |
| 6981171 |
Data storage array employing block verification information to invoke initialization procedures |
Dec. 27, 2005 |
| 6981172 |
Protection for memory modification tracking |
Dec. 27, 2005 |
| 6978343 |
Error-correcting content addressable memory |
Dec. 20, 2005 |
| 6978347 |
Method and apparatus for re-synchronizing paired volumes via communication line |
Dec. 20, 2005 |
| 6978396 |
Method and system for processing replicated transactions parallel in secondary server |
Dec. 20, 2005 |
| 6976124 |
Control method of control device conducting data input and output to storage devices, and control device used therefor |
Dec. 13, 2005 |
| 6976139 |
Reversing a communication path between storage devices |
Dec. 13, 2005 |
| 6976140 |
Computer system and a method of replication |
Dec. 13, 2005 |
| 6976146 |
System and method for emulating block appended checksums on storage devices by sector stealing |
Dec. 13, 2005 |
| 6976194 |
Memory/Transmission medium failure handling controller and method |
Dec. 13, 2005 |
| 6973484 |
Method of communicating data in an interconnect system |
Dec. 6, 2005 |
| 6973533 |
Data storage device providing communication between processing units |
Dec. 6, 2005 |
| 6973586 |
System and method for automatic dynamic address switching |
Dec. 6, 2005 |
| 6973587 |
Systems and methods for out-of-band booting of a computer |
Dec. 6, 2005 |
| 6973588 |
Disaster recovery port in a portable computer |
Dec. 6, 2005 |
| 6970310 |
Disk control apparatus and its control method |
Nov. 29, 2005 |
| 6970972 |
High-availability disk control device and failure processing method thereof and high-availability disk subsystem |
Nov. 29, 2005 |
| 6970987 |
Method for storing data in a geographically-diverse data-storing system providing cross-site redundancy |
Nov. 29, 2005 |
| 6971041 |
Cache entry error-correcting code (ECC) based at least on cache entry data and memory address |
Nov. 29, 2005 |
| 6971042 |
Media server with single chip storage controller |
Nov. 29, 2005 |
| 6971043 |
Apparatus and method for accessing a mass storage device in a fault-tolerant server |
Nov. 29, 2005 |
| 6966011 |
Data reconstruction method and system wherein timing of data of data reconstruction is controlled in accordance with conditions when a failure occurs |
Nov. 15, 2005 |
| 6963622 |
Bit labeling for amplitude phase shift constellation used with low density parity check (LDPC) codes |
Nov. 8, 2005 |
| 6961624 |
Two-wire field-mounted process device |
Nov. 1, 2005 |
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