Seeking your experienced advice or reasoned opinion:

We have a TSMv5.5.7 service with very fragmented 500GB DB @ 76% utilized
but only 8% reduceable.  As soon as possible we will start TSMv5->v6
migration to new 1200GB DB and 200GB Log.   Another TSMv6 service with
800GB DB @ ~50% utilized performs well using 4 * 200GB LUNs = PVs = LVs
= JFS2 FileSpaces  (with 1 each per 200GB LUN on fast NetApp disk.)

For this TSMv5->v6.3.3 conversion, using same fast disk, which TSMv6 DB
config is better practice?

   a)   6 * 200GB LUNs  (LUN = PV = LV = FileSpace)
   b)   4 * 300GB LUNs  ...

We might eventually need to incrementally grow this TSMv6 DB up to twice
initial size adding similar sized LUNs!

--
jim.owen AT yale DOT edu   (w#203.432.6693, c#203.494.9201, h#203.387.3030)