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7454676 |
Method for testing semiconductor chips using register sets
A method for testing semiconductor chips having a test logic unit includes: providing a chip having n different register sets, each of which has m different registers that are subdivided into m...
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7454687 |
Method and infrastructure for recognition of the resources of a defective hardware unit
A system and method of recognizing resources of a computer comprising a system serial number and a broken hardware unit comprising a non-volatile memory unit and enablement definition data relating...
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7454533 |
Redundant path control apparatus and redundant path control method
A host computer is connected to logical disks via controllers, and accesses the logical disks. When maintenance work is performed on a first controller, information indicating that the first...
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7451344 |
Optimizing order of error recovery steps in a disk drive
A method is disclosed for ordering error recovery steps of an error recovery procedure executed by a disk drive, wherein each error recovery step having an execution time. The disk drive comprises...
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7451223 |
System for controlling remote integrated circuit and method for operating the same
A system for more effective control and management on remote Integrated Circuit (IC) is disclosed. In order to achieve this, there is provided a system for controlling remote IC using Internet and...
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7447936 |
Nonvolatile memory system
A memory system permitting a number of alternative memory blocks to be made ready in order to extend the rewritable life and thereby contributing to enhanced reliability of information storage is...
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7447935 |
Computer data storage unit reinstallation data protection method and system
A computer data storage unit reinstallation data protection method and system is proposed, which is designed for use with a computer platform for providing a reinstallation data protection function...
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7447943 |
Handling memory errors in response to adding new memory to a system
A system includes a mechanism to detect addition of a memory module. In response to the addition of the memory module, a memory test is run to test the new memory module for a defect. If an...
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7447837 |
Control device for a RAID device
A control device for a RAID device is provided which changes, when one or more disks are added, allocation of segments to existing stripes, each of which have created by use of existing disks, by...
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7447954 |
Method of testing a memory module and hub of the memory module
A method of testing a memory module comprising converting a hub of the memory module into a transparent mode, providing first data corresponding to a first address to the hub of the memory module,...
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7447955 |
Test apparatus and test method
There is provided a test apparatus for testing a memory-under-test for storing data strings to which an error correcting code has been added, having a logical comparator for comparing each data...
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7447934 |
System and method for using hot plug configuration for PCI error recovery
A method, system, and program product for recovering from a bus error in a computer system having a hot plug interface. In accordance with the method of the present invention, an operating system...
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7447956 |
Method and apparatus for testing data steering logic for data storage having independently addressable subunits
Read and write data steering logic in the I/O of a memory array is tested by providing a data bus lane for each addressable subunit of a memory array storage location. Each bus lane is connected to...
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7444577 |
Memory device testing to support address-differentiated refresh rates
A method of testing a dynamic random access memory (DRAM) device that has N rows of storage cells and that requires, in at least one operating mode, at least N refresh commands to be received from...
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7444543 |
Data control unit capable of correcting boot errors, and corresponding self-correction method
A boot method for a data control unit downloads boot information from a nonvolatile memory into a temporary buffer of a boot-activation unit. A processing unit is activated by the boot-activation...
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7444540 |
Memory mirroring apparatus and method
Various systems and methods are provided for memory mirroring. In one embodiment, a mirror memory is provided having a memory fully buffered controller, the memory fully buffered controller being...
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7444541 |
Failover and failback of write cache data in dual active controllers
A data storage system is provided with a pair of controllers and circuitry configured for failing back from a single active write back mode to a dual active write back mode by copying cached data...
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7441143 |
Disk array including plural exchangeable magnetic disk
To provide a storage apparatus in which a plurality of drives in a unit are separately treated and the unit can be easily exchanged for another unit even when RAID groups are freely composed. The...
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7441165 |
Read-only memory and operational control method thereof
A read-only memory (ROM) and a related method for controlling operations of the ROM are disclosed. A built-in self-test (BIST) circuit of the ROM verifies system data stored in a system area of a...
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7437602 |
Memory card apparatus configured to provide notification of memory capacity
The service life of memory cards is to be substantially elongated against the occurrence of faulty blocks. A control logic searches blocks in a nonvolatile memory cell array for any acquired fault...
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7437524 |
Method and apparatus for dumping memory
The present invention relates to a method and apparatus for dumping memory. More particularly a computer-implemented method of saving at least some data within volatile storage to non-volatile...
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7437629 |
Method for checking the refresh function of an information memory
A method for checking the refresh function of a memory having a refresh device includes the steps of, first, ascertaining whether or not refresh request pulses are being produced on the information...
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7434120 |
Test mode control circuit
Provided is a test mode control circuit capable of preventing an MRS (mode register set) from changing in a test mode exit after a test mode entry. In the test mode control circuit, an MRS...
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7434111 |
Non-volatile memory system having a pseudo pass function
A non-volatile memory system comprises a non-volatile memory and a memory controller controlling the non-volatile memory. The non-volatile memory has a pseudo pass function of returning a pass as a...
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7434092 |
Semiconductor memory and method of storing configuration data
Redundantly repaired semiconductor memory and method in which the configuration data for the memory is stored in an area of the main memory array which is known to be free of bad bits, along with a...
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7430619 |
Communication device, host apparatus, and communication method
A method and apparatus for communicating data between a device and a host apparatus through a USB interface detects and corrects USB transaction phase deviation due to erroneous recognition of...
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7428656 |
Performing retry operations
A method of performing a retry procedure may begin with detecting an error in a first zone of a data storage medium. Upon detecting the error, it is determined whether any retry procedure of a...
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7428633 |
Embedded device and method of initializing the same
An embedded device and an initialization method of the same in which a data loss warning and a reset mode selection menu is displayed, in response to a hard reset command to allow a user to confirm...
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7424621 |
Data protection
A data storage tape 4 has an associated memory device 3 in which is stored a number of signatures 12 each representative of and associated with a particular data set recorded on the storage...
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7421435 |
Data processing system and storage subsystem provided in data processing system
A first storage subsystem 100 A comprises a first storage device 6 A 1 and one or more second storage devices 6 A 2, 6 A 3 . A second storage subsystem 100 B comprises a third storage device ...
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7418533 |
Data storage system and control apparatus with a switch unit connected to a plurality of first channel adapter and modules wherein mirroring is performed
A storage system has a plurality of control modules for controlling a storage device for accesses from a mainframe host and an open system host respectively supporting different protocols. An open...
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7418623 |
Apparatus and method to reconfigure a storage array
A method is disclosed to reconfigure a storage array. The method supplies a data storage and retrieval system comprising (N) data storage device assemblies, wherein each of those (N) data storage...
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7418621 |
Redundant storage array method and apparatus
The present invention is directed to a data storage system utilizing a number of data storage devices. Each of the data storage devices stores primary and mirrored copies of data. Furthermore, the...
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7418564 |
Storage controller, storage control system and storage control method for mirroring volumes
The present invention provides a storage control technique that leaves no failure in a file system of a secondary volume even if the secondary volume is split from a primary volume with no...
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7415644 |
Self-repairing of microprocessor array structures
A level of indirection is utilized when writing to a microprocessor array structure, thereby masking hard faults in the array structure. Among other benefits, this minimizes the use of a backward...
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7415628 |
Restricting the execution of copy services commands
A system and method for controlling peer-to-peer remote copy (PPRC) operations initiated from one or more host devices that desire to store data contents written to a first storage system to a...
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7415587 |
Method and apparatus for adjusting performance of logical volume copy destination
When data written into a volume (source volume) in a parity group in a storage apparatus is written into a volume (destination volume) in a parity group in a storage apparatus using a remote copy...
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7415629 |
Method for managing pair states in a storage system
A storage system includes an application server that provides an application composed of a plurality of programs, a plurality of first volumes that store data that the programs use, and a plurality...
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7412628 |
Storage system and disconnecting method of a faulty storage device
A storage system in which a plurality of storage devices are connected by a pair of loops, disconnects a faulty storage device. The faulty storage device is disconnected from said loops by using,...
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7412575 |
Data management technique for improving data reliability
A method for managing data stored in a non-volatile memory having a plurality of memory blocks includes, first, determining if an error occurs in the read data in a selected memory block. If an...
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7409583 |
Volume and failure management method on a network having a storage device
A SAN manager acquires configuration information from devices constituting a SAN and produces a corresponding relationship between a host computer and a virtual volume (virtual volume mapping) and...
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7409581 |
Main memory controller adapted to correct corrupted data by xoring corrupted data to directly generate correct data
A computer system includes memory modules, a central processing unit and a memory controller. The memory controller is configured to access the memory modules in response to interaction with the...
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7409580 |
System and method for recovering from errors in a data processing system
A system and method of recovering from errors in a data processing system. The data processing system includes one or more processor cores coupled to one or more memory controllers. The one or more...
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7409600 |
Self-healing cache system
A method, apparatus and program storage device for performing a self-healing cache process is described. At least one error affecting a cache is detected. The cache may have a matching address tag...
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7409579 |
Disk array device having point value added or subtracted for determining whether device is degraded
A trouble case point update unit subtracts point from point stored in a trouble point storage unit when a trouble occurs. A processing-time-reference exceeding case point update unit subtracts...
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7406619 |
Cache synchronization in a RAID subsystem using serial attached SCSI and/or serial ATA
A RAID system includes a pair of RAID controllers adapted to operate in active-active mode, each controller including a cache memory and at least one SAS/SATA I/O chip connected to a plurality of...
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7406620 |
System and method for compiling a memory assembly with redundancy implementation
In one embodiment, a computer-implemented system for compiling a fuse assembly for a memory is disclosed. The claimed embodiment comprises: means for defining a memory group including at least one...
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7404057 |
System and method for enhancing read performance of a memory storage system including fully buffered dual in-line memory modules
A system and method for enhanced read performance of a memory storage system is disclosed. The storage system includes a first memory controller. At least one first channel of a plurality of memory...
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7404102 |
Virtual disk drive system and method
A disk drive system and method capable of dynamically allocating data is provided. The disk drive system may include a RAID subsystem having a pool of storage, for example a page pool of storage...
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7401260 |
Apparatus, system, and method for performing storage device maintenance
An apparatus, system, and method are disclosed for performing a storage device maintenance operation. A management module receives a command through an interconnection module configured as a...
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