WRITE RETRY METHOD AND MAGNETIC TAPE DEVICE

• Main Authors: NAKAMURA KENJI, OISHI YUTAKA, MASUDA SETSUKO
• Format: Patent
• Language: English
• Published: 13.11.2008
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

PROBLEM TO BE SOLVED: To provide a write retry method for reducing permanent errors, and a magnetic tape device including the method. SOLUTION: A write control method for writing at least one data set in a predetermined distance of a tape medium in a longitudinal direction repeats a retry operation for writing data set in a tape position where a tape medium is forwarded only by a small distance when an error occurs while writing the data set. When either the repetition step reaches the predetermined number of times or the write limit time of one data set is exceeded is achieved, the tape medium is forwarded from the tape position of the data set correctly written immediately before in time to a position immediately before the forward tape position of a predetermined distance to execute a write retry operation. The number of permanent errors is reduced as compared with the conventional case within a timeout. Thus, unnecessary tape cartridge replacing requests are reduced. COPYRIGHT: (C)2009,JPO&INPIT