The following special processing conditions exist:
Specified in JCL; causes Tape Write Immediate, which, on physical 3480s and 3490s, forces a physical write to tape before returning channel end and device end to the host. CA Vtape processes OPTCD=W if requested; however, some records may be in flight and not yet saved in the DASD buffer when channel end and device end are returned to the host.
Specified in JCL; forces channel command chaining and is accepted by CA Vtape.
Specified in JCL; indicates shortened error recovery for physical tapes. This OPTCD is accepted by CA Vtape but does not affect processing.
Use of tape label types not supported by the Tape Management System (that is, LABEL=AL) may result in the Tape Management System exhausting all available virtual tapes. Use of unsupported label types, whether for a specific or a nonspecific volume request, should be avoided.
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