Partitioned data-based TDS compensation using joint temporary encoding and environmental controls

A system for providing enhanced readability of data written to a magnetic tape, the system comprising:

• a tape drive;
• a first tape partition, wherein data is written to the first tape partition using the tape drive, the data being written to the first tape partition under a first dimensional stability condition;
• a second tape partition;
• a condition monitor that monitors an ambient dimensional stability condition to determine if the ambient dimensional stability condition has moved at least a predetermined threshold value from the first dimensional stability condition toward a preferred dimensional stability condition;
• and
• a data replicator that replicates the data to the second tape partition when it has been determined that the ambient dimensional stability condition has moved at least the predetermined threshold value from the first dimensional stability condition toward the preferred dimensional stability condition.

A method for providing enhanced readability of data written to a magnetic tape, the magnetic tape including a tape substrate including one of polyethylene naphthalate and polyethylene terephthalate, the method comprising the steps of:

• writing data to a first tape partition using a tape drive, the data being written under a first dimensional stability condition;
• monitoring an ambient dimensional stability condition with a condition monitor to determine if the ambient dimensional stability condition has moved at least a predetermined threshold value from the first dimensional stability condition toward a preferred dimensional stability condition, the predetermined threshold value entailing movement of at least approximately 50% toward the preferred dimensional stability condition, monitoring including monitoring the ambient dimensional stability condition with one of a host application that is configured to provide instructions to the tape drive, and a drive controller of the tape drive;
• replicating the data to a second tape partition with a data replicator when it has been determined that the ambient dimensional stability condition has moved at least the predetermined threshold value from the first dimensional stability condition toward the preferred dimensional stability condition;
• and
• deleting the data written to the first tape partition after the data has been replicated to the second tape partition;
• wherein the first dimensional stability condition includes one of relative humidity, temperature, aging, creep, and a physical tape dimension of the magnetic tape;
• and
• wherein the predetermined threshold value is determined at least in part based on one or more of track densities for a given capacity format, substrate specification, and transverse dimensional stability of the magnetic tape.