z/OS DFSMShsm Implementation and Customization Guide
z/OS DFSMShsm Implementation and Customization Guide
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Considerations for duplicating backup tapes z/OS DFSMShsm Implementation and Customization Guide SC23-6869-01 |
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Note: This section refers to backup tapes
created by the data set backup by command function. This is not a
discussion applicable to all backup tapes.
The TAPECOPY function is an alternative to the DUPLEX tape function. Using the SETSYS(DSBACKUP) parameter, DEMOUNTDELAY, can cause an output tape to be mounted indefinitely. In this environment, use the duplex tape function when possible. If duplexing cannot be used, use TAPECOPY to make copies of your data set backup tapes. 
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