Recently got my last server updated to sles11sp3 / oes11sp2. Now,
which all repos are the ones definitely needing to be mirrored on my
SMT box?

Are there any reasons to keep these mirrored?

OES11-SP1-Pool
OES11-SP1-Updates

SLES11-SP1-Pool
SLES11-SP1-Updates - was told these 2 needed for sles11sp2

SLES11-SP2-Core
SLES11-SP2-Extension-Store
SLES11-SP2-Updates

--
Stevo