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Quick question. We're on a Model 550 (Power 5) running V5R4 on current CUM and PTF groups. Disks and disk controller are in a 5094.

Can we simply power off an LPAR, pull the existing 2778 disk controller and replace in the same slot with a newer 2780 controller, and then just power back up. We have older disk (6718 and 6719) under this 2778 . We hope to replace the 2778 with a 2780 and then create a new RAID 5 set of 70GB drives, then drain and remove the older 6718 and 6719 disk drives.

If simply swapping the disk controllers won't work, then how do you go about the upgrade we're trying to do?

Thanks,
Glenn Birnbaum
REI

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