| 摘要 |
<p>A method and system for determining degradation of the tape drive and the tape in a multichannel recording system provides refined definition of correction for data recording statistics. The method and system generate a count signal indicative of the number of data blocks read from multi-track tape having more than a predetermined threshold of data bytes in error. The method and system generate a degradation signal indicative of tape drive and tape degradation if the ratio of corrected data blocks versus the total number of data blocks read from the tape is above a predetermined ratio. The degradation signal is indicative of tape drive degradation if the ratio of data blocks having more than the predetermined number of error data bytes along a single track versus the total number of data blocks read from the tape is above a predetermined ratio. The degradation signal is indicative of tape degradation if the ratio of data blocks having more than the predetermined number of tracks for a given data byte being in error versus total number of data blocks read from the tape is above a predetermined ratio.</p> |
