I am confused when converting direct attach to a SAN system

Our old system was had 12 127 15k rpm drives. We converted to an LPARed system with 3 Luns.
#1 572000M 7,200 rpm
#2 191000M 7,200 rpm
#3 763000M 7,200 rpm

I don't have the exact break down but there is supposed to be 60 drives allocated to the 3 luns.When we tried a test conversion this past weekend a disk bottle neck occurred during part of the initial start up when selected files were being reorged.

My thought on correcting the problem would be to:
1. Split the 3 luns into maybe 6 or more smaller units
2. Recreate the luns using 15k drives
3. Recreate the drives into 6 luns with 15k drives

Am on the correct track\?
Is there other option to consider?


Dave Willenborg
FNTS semi-retired
Omaha NE

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