I was doing a BRMS restore of a 7.1 system and I got to "Step 012 :
Recover Required System Libraries" when I ran into an issue restoring
CPF3706 - FILE SYSIXADV not restored to library QSYS2.
BRM61FF - Recovery completed with errors.
IBM says to avoid this error you should have PTF SI53525 installed before
you do the save.
Of course, it is a delayed PTF to be applied during IPL time. It was
added to the hiper group on June 17.