roll back change after dump 1

[kxts500]

hi
tsw sp07 i need know how can roll back change after dump with duysi;
regards

 

[himdp]

what changes do you need to roll back, data or patches?

 

[himdp]

If you want to roll back to old data, it depends how many dumps have been performed. If a DUFQI is set it might already be too late to roll back from the HDU. The HDU only contains two dumps REL1 and REL2. You can find which is the latest with DUBDP;
If the oldest dump is after the changes you want to roll back, then you must restore from safety backup (you do have one don't you?)

To reload from the older dump you can block the newest dump with-
FICACATH=/SYSN/USRx/SES/DR/RELx,FCAT=GROUP,ACC=N; Where USRx and RELx is USR1 or USR2 and REL1 or REL2 whichever is the latest shown by DUBDP;

Then do LADAI; to reload system data.

There are other ways to achieve this, you can use the niux command to change file access permissions.
I have been told that you can just delete the DATE file in the unwanted REL before LADAI but I have never tried that so cannot recommend it, perhaps someone else on here can comment on that.