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7730154 Method and system for fragment linking and fragment caching  
A method, a system, an apparatus, and a computer program product are presented for fragment caching. After a message is received at a computing device that contains a cache management unit, a...
7724643 Recovery of duplex data system after power failure  
A duplex data system performs a recovery process normally even in the event of an abrupt abnormal power failure. The duplex data system has a first storage device, a second storage device, and a...
7725649 Recording method and recording apparatus using same  
A method of recording record signals sequentially transmitted from a host on an optical recording medium. The method includes receiving record data sequentially transmitted from the host and...
7725648 Automatic media readying system and method for a optical medium with file systems  
In one aspect of the invention, a computer system comprises application logic executable to search an optical medium for at least one type of file system that may be resident on the optical...
7721043 Managing write requests in cache directed to different storage groups  
Provided are a method, system, and article of manufacture for managing write requests in cache directed to different storage groups. A determination is made of a high and low thresholds for a...
7716417 Method and system for controlling access to tape media from a plurality of virtual computers  
A tape library comprises: a plurality of tape media; a plurality of slots in which the plurality of tape media are respectively stored; a drive in which a tape medium extracted from any of the...
7716418 Method and device for utilizing a modified read-ahead command to store data on a record medium  
A modified read-ahead (i.e., jump) command, contains a sequential access parameter SAP, JUMPm(X,Y:SAP), for instructing a disc drive to jump to block Y after having read block X. If the SAP...
7711876 Dynamic category compression in a data storage library  
Methods and apparatus are provided for dynamically compressing categories in a data storage library. In one embodiment, the method includes retrieving an identification of a first category in the...
7711909 Read sharing using global conflict indication and semi-transparent reading in a transactional memory space  
It has been discovered that globally indicating read-write conflicts and semi-transparent read sharing in a transactional memory space allows for a more expedient validation. Without being aware...
7711913 System and method for backing up extended copy commands  
Embodiments of the present invention provide systems and methods for backing up data through recordation and issuance of extended copy and media commands. One embodiment of the present invention...
7707367 Data storage system having separate atomic operation/non-atomic operation paths  
A data storage system having protocol controller for converting packets between PCIE format used by a storage processor and Rapid IO format used by a packet switching network. The controller...
7707355 Memory system for selectively transmitting command and address signals  
A system includes a memory controller adapted to output address signals, command signals and select signals; a plurality of memory modules; and a plurality of buses each corresponding to one of...
7707371 Storage area network (SAN) switch multi-pass erase of data on target devices  
Techniques are provided for performing multi-pass erase. An erase command is received at a storage area network (SAN) switch in a storage area network. The erase command is associated with a block...
7707193 System and method for verifying and restoring the consistency of inode to pathname mappings in a filesystem  
A system and method verifies and restores the consistency of inode to pathname mappings. In a first embodiment, an off-line verification procedure is modified to verify and correct the primary...
7707366 Memory control device  
Improved efficiency of address/data communication over a memory bus. A memory-control device is located between a processor 30 and memory ranks 40a, 40b and controls access to the memory ranks...
7702821 Content-aware digital media storage device and methods of using the same  
A content-aware digital media storage device includes a host device interface for exchanging digital information with a host device, a memory array for storing digital information received from...
7702873 Managing common storage by allowing delayed allocation of storage after reclaiming reclaimable space in a logical volume  
An apparatus and method for managing of common storage in a storage system is disclosed. In one embodiment, a storage system receives a request to set a space reservation for a volume associated...
7702757 Method, apparatus and program storage device for providing control to a networked storage architecture  
A method, apparatus and program storage device for providing control to a networked storage architecture is disclosed. A networked storage device is provided. Controllers are coupled to the at...
7697228 Apparatus, system, and method for interchange testing  
An apparatus, system, and method are disclosed for interchanging testing. A test module moves a first tape from a tape pool to a first reserved slot of plurality of reserved slots using an...
7698502 File recovery system for a removable portable memory device  
A removable semiconductor memory card for a portable appliance is provided comprising a memory with a portion thereof dedicated to deleted files, and a memory card controller that operates to...
7694031 Memory controller including a dual-mode memory interconnect  
A memory controller including a dual-mode memory interconnect includes an input/output (I/O) circuit including a plurality of input buffers and a plurality of output drivers. The I/O circuit may...
7689807 Mass storage device, mass storage controller and methods for use therewith  
A mass storage controller includes a packet filter module for receiving a packet containing an updated sector of a remote file allocation table from a host device. The packet filter module is...
7688814 Methods of conveying information using fixed sized packets  
Communication protocols, systems, and methods that facilitate communication between disaggregated elements, and also to devices adapted to function as such disaggregated elements, particularly...
7689765 Control apparatus of storage unit, and method of controlling the control apparatus of storage unit  
A control apparatus of a storage unit having a first and a second communication ports for conducting communication with a computer, a first and a second processors that control respectively the...
7685388 Method and system for single pass volume scanning for multiple destination mirroring  
A method for operating a computer data storage system stores snapshots of an active file system of the storage system at a plurality of destinations. A latest snapshot stored at each destination...
7685358 System and method for coordinating cluster state information  
A method for managing a cluster of file servers is disclosed. The method has the first step of writing coordinating information for a plurality of servers of the cluster of servers to a master...
7672754 Balancing of data tape cartridges in tape libraries with pass-through mechanism  
A computer-implemented method for balancing data tape cartridge utilization in an automated tape library system identifies a current number of data tape cartridge mounts per library string and...
7669031 Computer system, storage area allocation method, and management computer  
Disclosed is to prevent deterioration in I/O performance of a computer resulted from a use of the same physical disk among different logical volumes. A volume management server 1010 groups...
7664910 Data management method and apparatus, hierarchical storage apparatus and computer-readable storage medium  
A data management method is adapted to a hierarchical virtual storage system which virtually uses a library apparatus having a plurality of recording media as a portion of a hard disk apparatus....
7664912 Data recording apparatus, data recording method, and program  
Disclosed herein is a data recording apparatus which may include a recording data acquisition section, a data recording section, a file management section, a recording control section, and a file...
7664922 Data transfer arbitration apparatus and data transfer arbitration method  
When a concentration of access requests on a specific bank occurs, the delay time is caused due to the competition among the accesses, thereby lowering the processing speed of an information...
7663826 Method and apparatus for copying data from one disc drive to another disc drive  
A method and an apparatus for copying data of a disc drive are provided. The method includes: determining whether the first disc drive has a predetermined jumper pin connection by identifying...
7660783 System and method of ad-hoc analysis of data  
It is a first aspect of the present invention to provide a computer implemented method of performing ad-hoc analysis including the steps of: generating a text index of the textual information...
7660956 Save set bundling for staging  
Backing up data blocks is disclosed. An indication that a first set of one or more backed up data blocks are related at an application level to one or more other sets of one or more backed up data...
7660954 Techniques for saving data  
The invention concerns a system for saving data derived from a mainframe characterized in that it comprises a computer equipment including an input/output interface for exchanging data with the...
7657665 Shared simultaneously-connected removable drives and servers each housing an I/O controller which maintains an uninterrupted protocol connection  
Local drive presence is provided for local and remote drives by maintaining a plurality of uninterrupted protocol connections between a plurality of I/O controllers and a plurality of device...
7657584 Reorganization method of database and a database reorganization system  
Provided is a storage system in which a transaction of a database is quiesced, a pair of a first volume and a second volume is split so as to make settings to allow an access to be made only to...
7657715 Dynamic operation mode transition of a storage subsystem  
A host implement a method for controlling a dynamic transition of the host from a current operation mode to a target operation mode. The method involves the host receiving an operation mode...
7653796 Information recording medium and region management method for a plurality of recording regions each managed by independent file system  
A region management method for an information recording medium capable of maintaining data interchangeability among devices and preventing malfunction when one information recording medium shared...
7650456 Employment method of virtual tape volume  
Conventionally, it has been impossible to use a virtual tape volume having the same volume serial number and different media. A computer implemented virtual tape system enables making definition...
7647456 Comparing data in a new copy relationship to data in preexisting copy relationships for defining how to copy data from source to target  
Provided are a method, system, and program for establishing copy relationships to copy source data to target data. A request is received to establish a copy relationship indicating to copy source...
7647448 Backup and archiving system by means of tape volume cassettes for data processing units  
A backup and archiving system utilizing tape cassettes avoids bottlenecks at a higher performance level that may be caused by a central working storage, especially during backup and archiving...
7644206 Command queue ordering by positionally pushing access commands  
A data storage system is provided with command queue controller circuitry for positionally pushing pending access commands from a command queue to a selected target zone of a storage space. A...
7640415 Storage system having a first computer, a second computer connected to the first computer via a network, and a storage device system that is accessed by the second computer  
When a computer 10 receives a request from the client computer 30 to access snapshot files, the target device to be used is identified. The computer 10 makes a request to the identified target...
7640262 Positional allocation  
Described are techniques for managing an index structure used to access data portions. A token having a token value for a data portion is provided. An entry in said index structure for said data...
7640588 Data processing system and method  
A data processing system (102) determines whether or not the access destination according to an access request from an access request source is an infectable storage device that is a storage...
7636769 Managing network response buffering behavior  
The present invention extends to methods, systems, and computer program products for managing network response buffering behavior. A computer system receives a request for content from a client....
7636828 Method for automatic adjustment of timing of double data rate interface  
Timing of a write and read strobes for a memory having a double data rate (DDR) interface are automatically adjusted using write-read operations. A first and a second value of the write and read...
7636830 Simultaneous allocation of storage for multiple logical volumes  
A method, system, computer system, and computer program product to allocate storage resources among multiple logical volumes. In response to a request to perform a set of operations on multiple...
7631140 Data accessing method, device in which the data accessing method is executed and recording medium  
To guarantee a data transfer rate irrespective of a performance of a memory card. A parameter to show a data transfer efficiency is previously recorded in a recording medium 101 in which data is...