No longer in GT.M since: V5.3-003
MTRECTOOSM, Magtape record size is too small for record type
Run Time Error: This indicates that an OPEN command attempted to initialize a magnetic tape with a variable length record size that is smaller than this type of tape can accommodate.
Action: Modify the routine to use a larger record size or use FIXED length records. For example, in OpenVMS the minimum variable RECORDSIZE requires a single byte of data and 4 bytes of overhead in every variable-length record.