Logical block protection for tape interchange
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United States of America Patent
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Aug 9, 2016
Grant Date -
Feb 12, 2015
app pub date -
Oct 22, 2014
filing date -
Mar 15, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A two part process is used for modifying records to be written and retrieved from tape devices. A record is appended with a cyclic redundancy check and a string of zeros. Submitting the entire record to tape drives which are logical block protection enabled will result in no change. For drives that are not LBP enabled, the string of zeros at the end of the record is removed. In addition to determining whether a drive is LBP compliant, a determination may be made as to whether a drive is a linear tape open drive from a particular manufacturer. Linear tape open drives may behave similarly as drives which may not be enabled with logical block protection.
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