FDDRL copies the contents of a disk which need not belong to a pubset or the content of all disks of a pubset (input disk(s)), including all the volume labels, onto an equal number of other disks (output disk(s)). The input disk and the output disk must have the same device type.
You can use the COPY function for both saving and restoring one or more disks. The ACTION operand allows you to define which of these activities you want to execute:
To save the original disk to the output disk, specify ACTION=*SAVE.
To restore the original disk from the copy, specify ACTION=*RESTORE.
Note
The purpose of copying (save or restore) shows FDDRL which disk must be the source or target disk. This permits inadvertent switching of the disks with the same VSN to be recognized by the operator.
Save: | Copying a newer disk to an older disk. |
Restore: | Copying an older disk to a newer disk. |
The COPY-DISK statement is used to copy a single disk, the COPY-PUBSET statement to copy all disks of a pubset. The pubsets can be single-feature (SF) or system-managed (SM) pubsets.