One of our RxServer based serves uses DDR to take a daily backup of key minidisks listed in a control file and count for the remainder on the weekly & daily incremental backups taken with VMBACKUP. SFS thus on VMBACKUP, nothing of SFS is on the DDR backup; the DDR must fit on a single casette (as DDR doesn't support tape labels). Part of a DR procedure is running an exec that regenerates all SFS servers before one starts the VMBACKUP restore template (template generated by the disaster backup procedure). The control files living on the SFS servers' 191 disk are restored by this SFS format procedure.
-- Kris Buelens, IBM Belgium, VM customer support
