摘要:
Embodiments of the present invention provide a method for monitoring components in a library by tracking the movement of library components. By tracking the movement of library components, the degradation of library components can be monitored and the reliability of library components determined, allowing unreliable components to be bypassed or replaced, enhancing the reliability of the library and preventing data loss.
摘要:
Disclosed is a system, method and computer program product for synchronizing data written to tape with improved data recovery. When writing data to tape, an index is kept in memory and updated to reflect change(s) to a file system mounted on tape. After a predetermined amount of data is written to a tape, a device may perform a sync operation, causing the index to be written into a data partition of the tape. If the sync operation is successful, the index in the index partition of the tape can be updated using a copy of the index in the data partition of the tape next time the tape is mounted. If the sync operation is not successful, the device may write the data to a different location on the same or another tape, update the index, and force another sync operation. This process can be repeated.
摘要:
A system, method and computer program product for synchronizing data written to tape with improved data recovery. When writing data to tape, an index is kept in memory and updated to reflect change(s) to a file system mounted on tape. After a predetermined amount of data is written to a tape, a device may perform a sync operation, causing the index to be written into a data partition of the tape. If the sync operation is successful, the index in the index partition of the tape can be updated using a copy of the index in the data partition of the tape next time the tape is mounted. If the sync operation is not successful, the device may write the data to a different location on the same or another tape, update the index, and force another sync operation. This process can be repeated.
摘要:
A tape performance optimization method may include accumulating data in a memory, monitoring the accumulation of data, determining whether a certain amount of data has been accumulated in the memory, and causing the accumulated data to be migrated to a tape in a tape library. In one embodiment, the amount of data to be accumulated is set to be two wraps or a multiple thereof. Using embodiments, it can take zero or near zero time to rewind the tape when unloading occurs, eliminating wasted tape movement time and significantly increasing tape performance. In one embodiment, the accumulation of data may be terminated even if the desired amount of data has not been accumulated. In one embodiment, the termination might be triggered by a timeout condition.
摘要:
Embodiments of the present invention provide a method for monitoring components in a library by tracking the movement of library components. By tracking the movement of library components, the degradation of library components can be monitored and the reliability of library components determined, allowing unreliable components to be bypassed or replaced, enhancing the reliability of the library and preventing data loss.
摘要:
Embodiments described herein provide systems and methods for a self-describing tape that allow files stored on a tape according to a tape file system to be presented in a similar manner (e.g., to an operating system, to a network file system interface) by different instances of a second type of file system (e.g., a non-tape file system). This can include, for example, allowing a file system of the second type to consistently present files over a network file system interface as being available at the same directory path location, according to the same permissions.
摘要:
Embodiments of the present invention provide a method for monitoring components in a library by tracking the movement of library components. By tracking the movement of library components, the degradation of library components can be monitored and the reliability of library components determined, allowing unreliable components to be bypassed or replaced, enhancing the reliability of the library and preventing data loss.
摘要:
Systems, methods and apparatus for archive verification including the verification of media in a library, are disclosed. More specifically, a method of archive verification may include performing an initial verification on a first media in a first drive and performing a subsequent verification on the first media in a second drive not used for the initial verification, and comparing the results of the initial verification and the subsequent verification. Embodiments may further perform an initial verification of the readability of a second tape media and subsequent verification of the readability for the second tape media, and compare the results of the initial verification to the results of the subsequent verification to determine the tape drive health, the efficacy of the first tape media or the second tape media, the efficacy of the first tape drive or the second tape drive, or whether to replace a tape media.
摘要:
Embodiments provide systems and methods for diagnosing a network and identifying problems in a network which reduce the data transfer rate of data through the network. One embodiment of a method for network diagnosis may include infusing data into a network upstream and downstream of a portion of the network relative to a library drive, querying the drive at intervals over time for drive data to determine the data transfer rate at the drive and comparing the data transfer rate of the data infused upstream of the device or network portion with the data transfer rate of the data infused downstream of the device or network portion to determine throughput. By comparing the data transfer rate of data infused upstream and downstream of a network device or network portion, problem devices in a network may be identified.
摘要:
Embodiments of the present invention provide a method for monitoring components in a library by tracking the movement of library components. By tracking the movement of library components, the degradation of library components can be monitored and the reliability of library components determined, allowing unreliable components to be bypassed or replaced, enhancing the reliability of the library and preventing data loss.