摘要:
A method, system, and apparatus for dynamically validating a data encryption operation are disclosed. In one embodiment, a method is provided which comprises decrypting a first sequential data element of a plurality of data elements substantially in parallel with the encryption of a second sequential data element of the plurality, where the first element comprises first data and first encryption validation metadata. In response to the decryption, second encryption validation metadata is generated utilizing the first data. Thereafter, a determination is made whether the first element has been validly encrypted based upon a comparison of the first and second metadata. In other embodiments, an encryption validation indicator may be generated (e.g., to notify a user of a detected encryption error and/or to mark a portion of data for re-encryption), further encryption operations may be suspended, and/or the storage of the first data element may be controlled following such a determination.
摘要:
Provided are a method, system, and program for writing data in a tape medium having wraps. A layout of the tape is provided including at least one segment within a full available length of a first set of wraps for writing user data and at least one segment within a full length of a second set of wraps for writing a work copy of the user data. User data is received to write to the tape medium and detecting is performed as to whether the data being written is occurring in a specified write mode. If the data writing is not occurring in the specified write mode, then writing the received user data to one segment in the first set of wraps. If the data writing is occurring in the specified write mode, then writing a work copy to available full length wraps not having user data.
摘要:
A system facilitates the, procurement of one or more document services for a document directly from a document preparation software application used to create the document. The system activates a graphical user interface within the document preparation software application, contacts a server to identify available document services, and configures the graphical user interface based on the available document services. The system detects selection of one of the available document services and provides the document from the document preparation software application to one or more service providers for performance of the selected document service.
摘要:
Provided are a method, system, and article of manufacture for writing data in a tape medium having wraps. A layout of the tape is provided including at least one segment within a full length of first set of wraps for writing user data and at least one segment within a full length of a second set of wraps for writing a work copy of the user data. User data is received to write to the tape medium. Detection is made of whether data writing is occurring in a specified write mode. A work copy is written to available segments in the second set of wraps not having user data in response to the data writing occurring in the specified write mode.
摘要:
In a data storage device, information regarding the operation of the device is gathered by a plurality of information providers or sources, such as counters, each configured to indicate a data point and/or count the occurrence of events with respect to the data storage device. A device control is configured to present an external prestructured arrangement of potential monitoring of the information providers, for external selective monitoring of a portion of the information providers in accordance with the prestructured arrangement. In one example, the prestructured arrangement is an ordered sequence of the information providers, for selective monitoring of a selected number of the information providers taken from the ordered sequence, such as the first “n” of the sequence.
摘要:
A cartridge handling system and method are provided to initialize a data storage cartridge having rewritable media and a cartridge memory for tamper resistant write once recording. During initialization of the cartridge for write once recording, selected data set information table fields of each data set are scrambled. The scrambling algorithm may employ a random number generator seeded with a unique cartridge identifier. The fields thus becomes unreadable if the unique identifier is changed, such as if the cartridge memory of the cartridge has been altered or replaced.
摘要:
A method is disclosed to transfer information between data storage devices. The method provides an information storage assembly comprising a frame, a memory device disposed on that frame, information written to that memory device, a power supply removeably attached to the frame, and a first data storage device comprising a first identity removeably attached the frame. If the method detects an error in the first data storage device, then the method removes the first data storage device from the frame. The method further provides a replacement data storage device, removeably attaches that replacement data storage device to the frame, and determines if the replacement device uses the first configuration information. If the replacement device uses the first configuration information, then the method provides the first configuration information to the replacement data storage device from the memory device.
摘要:
A method for a tape storage system to adaptively handle Space commands sent from a host computer system is disclosed. In response to a Space command from the host computer system, a determination is made as to whether or not the tape storage system is in a Read mode. If the tape storage system is in a Read mode, the estimated cost of performing a special read operation for the Space command is compared with the estimated cost of performing a normal space operation for the Space command. If the estimated cost for performing a special read operation is lower than the estimated cost for performing a normal space operation, then a special read operation is performed. But if estimated cost for performing a special read operation is higher than the estimated cost for performing a normal space operation, then a normal space operation is performed.
摘要:
A method and apparatus for the testing of vehicle fuel tank caps includes the mounting of a cap to be tested upon a mating socket. The socket/cap combination define a sealed chamber which can be pressurized and/or evacuated in a controlled manner. A pressure transducer monitors the pressure within the chamber. The monitored pressure is compared to reference values to determine cap integrity. The apparatus may be incorporated into a vehicle testing system using microprocessor control and having a database of vehicle, cap and performance data.
摘要:
A method, system, and a device have a data storage drive for an automated data storage library in which a data storage drive may have in one embodiment, both a host-drive interface port and a host-library interface port. In one aspect, drive commands from a host system are conducted primarily through the host-drive interface port and a host-drive interface path to a drive controller of the data storage drive. In addition, library commands from the host system to a library controller may be conducted primarily through the host-library interface port and a host-library interface path to a library communication port of the data storage drive. In one embodiment, the drive commands from a host system are conducted primarily through the host-drive interface port and the host-drive interface path to a drive controller of the data storage drive. In addition, the library commands from a host system are conducted primarily through the host-library interface port and the host-library interface path to the library communication port of the data storage drive. Other embodiments are described and claimed.