Moving DASD between LPARs

Greetings!

I have 4 disks that were in one LPAR, and were moved to the TEST LPAR prior
to my starting here, and now we want to move them back to the original
LPAR> I ran the STRASPBAL command marking those drives with *ENDALC, then I
ran the STRASPBAL *MOVDTA command. They are now at 1.2 or 1.3 % used. They
are RAID protected.

STRSST shows them as follows;

Parity Resource Hot Spare
Set ASP Unit Type Model Name Status Protection
1 573D 001 DC04 RAID-5 N
1 3 4328 074 DD015 Active
1 4 4328 074 DD014 Active
1 1 4328 074 DD016 Active
1 2 4328 074 DD013 Active
2 571B 001 DC07 RAID-5 N
1 6 4328 074 DD018 Active
1 5 4328 074 DD017 Active
1 7 4328 074 DD019 Active
1 8 4328 074 DD020 Active

I want to remove parity set 2 - disk unites 5,6,7 and 8 from the ASP, make
them available to the other LPAR and add them to the ASP there.

What steps do I need to do now? I searched the archives, and IBM InfoCenter
and didn't see the answer I need, although I'm sure it is there. Do I have
to IPL the LPAR to dedicated Service Tools to remove them from the ASP now?

The LPARs are HMC managed. The HMC is V7R3.3.0.

Thanks!

Jim