摘要:
An apparatus and method are disclosed to encode binary data into trinary data. Applicants' method provides binary data, and encodes that binary data into trinary data. By “binary data,” Applicants mean a plurality of bits, wherein each of those bits comprises a value selected from the group consisting of a first value and a second value. By “trinary data,” Applicants mean a plurality of bits, wherein each of those bits comprises a value selected from the group consisting of a first value, a second value, and a third value. The trinary data may be stored in ROM optical disks, nano-sized indentations in a thin-film, or multi-level magnetic storage. The trinary data may be also transmitted via three light levels in an optical communications network.
摘要:
A mirrored storage system for applications is provided, which enables and supports the variation and dynamic adaptation of the Recovery Point Objectives (RPO) based on policies. Furthermore, methods are provided for running such a mirrored storage system. Said mirrored storage system comprises a first storage system and at least one further storage system, wherein said first and said further storage system are connected via at least one mirror link. An application accesses said mirrored storage system via a network. Therewith, the data to be stored as response to a write command of said application can be mirrored according to a configurable time-varying RPO requirement of the application transmitting the corresponding write command.
摘要:
An apparatus and method are disclosed to detect and repair an error condition in a device comprising a computer readable medium comprising computer readable code. The method supplies an engineering server comprising a configuration control database in communication with a product failure alert assembly. The method then interconnects the product failure alert assembly with a product comprising a computer readable medium comprising computer readable code. The method provides product failure information to the engineering server, identifies one or more error conditions, identifies one or more fault symptom codes, determines if the configuration control database comprises one or more code updates associated with those one or more fault symptom codes, and installs those one or more code updates on the product.
摘要:
Applicants' automated data storage system includes a first media storage library having a first rail system, a garage having a movable rail system, said garage being disposed adjacent the media storage library, and a plurality of accessors movably disposed on either the first rail system or the movable rail system. In another embodiment, Applicants' automated data storage system further includes a second media storage library, having a second rail system, disposed adjacent the garage, such that the plurality of accessors is movably disposed on the first rail system, the second rail system, or the movable rail system. Applicants' invention further includes a method to move an accessor from the first media storage library into the garage, or from the first media storage library, through the garage, and into the second media storage library. Applicants' invention further includes a method to balance the workload of a plurality of data drives disposed within Applicants' automated data storage system.
摘要:
A method, system and computer program product for generating an alternative form of transmitted environmental data, e.g., scent information, air temperature settings, air humidity settings, triggering of infrared devices such as to create tactile warmth. Upon identifying one or more environmental data files in a received file, e.g., HTML file, environmental data associated with the data files may be read and interpreted. If there are no environmental devices, e.g., smell-generating device, configured to emit a response to the environmental data or if the environmental devices are disabled from emitting a response to the environmental data, then the environmental data may be translated into a form a computer may be capable of reproducing. The translated form may then be outputted in a variety of forms such as: pictorial data (e.g., picture of a pine tree substituting a pine smell), graphical effects (e.g., screen-flashing effect may substitute a strobe-light trigger).
摘要:
A portable carrier for a data storage medium is disclosed. An accessor which includes an electromagnet and a fixturing assembly is disclosed. A data storage and retrieval system which includes at least one of Applicants' carriers and at least one of Applicants' accessors is disclosed. A method to releaseably attach Applicants' carrier to Applicants' accessor is disclosed. A method to retrieve, transport, and place Applicants' carrier within a data storage and retrieval system is disclosed.
摘要:
A web browser program presents historical information about hyperlinks shown on web pages. Initially, the computer determines whether it is receiving certain user input, such as placement of a cursor over a hyperlink for a certain time. When this occurs, the computer accesses a database to determine whether one or more users in a predefined access group have previously selected the hyperlink for the purpose of downloading underlying data represented by the hyperlink. Some examples of the underlying data include web pages, graphics images, software programs, and the like. If the hyperlink has not been previously selected, no action needs to be taken. However, if the database shows that the hyperlink has been previously selected, the computer consults the database to gather characteristics of the underlying data obtained from previous selections of the hyperlink by access group members. Such characteristics may include, for example, the data's size, date of last download, expired or “under construction” status of web site, errors occurring during the download, etc. The computer presents a report containing the characteristics gathered from the database.
摘要:
A magnetic head is disclosed that utilizes MEMS technology to form microsliders and micromotors to provide fine movement of read, write and/or servo heads. In one exemplary embodiment, the head block includes cavities in which the microsliders are movably disposed. Read, write and/or servo elements are disposed on the microsliders. In other exemplary embodiments, the microsliders are disposed on the body block. Micromotors are mechanically coupled to the microsliders to move the microsliders with respect to the head body. Exemplary control systems include a controller that receives independent fine position data of the microslider and controls the micromotors to move the microsliders into a desired position.
摘要:
An optical fiber emulator. The emulator receives a digitally-encoded optical signal; demodulates the optical signal to produce serial electrical pulses representative of the digital signal; converts the serial pulses to parallel pulses; propagates the parallel pulses through a shift register whose propagation time is less than or equal to the time of a length of fiber to be emulated. The emulator then converts the parallel pulses at the output of the shift register to serial pulses; modulates an optical carrier with the serial pulses from the shift register; and attenuates the modulated optical signal an amount corresponding to the length of the fiber being emulated to produce an output optical signal whose propagation time is substantially equal to that of a section of optical fiber to be emulated. The shift register may be tapped at any point to obtain an output delayed by a desired amount corresponding to a selected section of optical fiber.
摘要:
A power saving method and apparatus while maintaining an operational or near-operational state for computer memory disk drives. A microprocessor implements microcode instructions to determine if a disk drive is inactive. This is done by checking a control unit through an interface to see if any files are currently opened or data is being transferred by the disk device. If no files are opened and/or no data transfers are occurring, the drive is considered inactive. If the inactive period continues for a period of time which is greater than a predetermined reference activity level, then actions are taken to reduce the rotational velocity of the drive spindle motor to its lowest operational level, or just below the lowest operational level without stopping the disk. The spindle motor is accessed by the microprocessor through a spindle motor control unit. In the case of a constant linear velocity disk drive, the spindle motor is indirectly controlled by the microprocessor sending a message to an actuator to move a data head to a track that is near the outer periphery of the disk medium. In order to maintain a constant linear velocity, the spindle control slows the angular velocity of the motor resulting in a reduction of power consumed. When it is necessary to access data again, the drive enters an active state and the head is moved by a microprocessor “seek” command. In the case of a constant angular velocity disk drive having selectable speeds, the microprocessor controls the motor speed directly. The microprocessor, upon determining that the disk has been inactive for a predetermined threshold period, selects a constant speed that is the lowest operation speed available. This results in a power saving mode being implemented for the disk drive The drive is returned to normal operational speed by a microprocessor “seek” command. For further savings, the motor is stopped or “spun down” when left inactive for a longer period of time.