A disk-volume replacement specification when restoring from an archive file.
Valid values are a comma-separated list of volumes to replace:
'VOL1' with 'VOL2'
'VOL3' with 'VOL4'
'VOL5' with 'VOL6'
string (see MaxL Syntax Notes)
'C' with 'F', 'D' with 'G', 'E' with 'H'