System, method and computer program product for synchronizing data written to tape including writing an index into a data partition so that data can be recovered in case of failure
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United States of America Patent
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Feb 10, 2015
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N/A
app pub date -
Jun 25, 2012
filing date -
Jun 25, 2012
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Abstract
A system, method and computer program product for synchronizing data written to tape so that the data can be recovered in case of failure. 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.
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