Disk Reconfigure Question

Hello All,

Thanks in advance for any help offered.

We are looking at reconfiguring the DASD on a V3R7 model 400 2131 AS/400.
The machine has 8 6605 drives and 8 6606 drives for a total of 14 gb(7
usasable after mirroring). The reason we are going to reconfigure the dasd
is that in order to mirror the dasd we are using a 6530 controller that has
no cache and is causing a performance problem.

We are going to either 
        1) replace a 6530 controller with a higher speed controller(6522) and
leave the dasd mirrored
        2) unmirror the drives, remove the 6605 (1gb) drives from use,  move all
the 6606 drives to the 918B IOP (disk controller with a cache). 

My question is will we have to do a restore as a result of either option?

Thank you,

Michael

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