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Old 03-03-2010, 10:27 AM
D60Dave D60Dave is offline
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Join Date: Mar 2010
Posts: 3
Cloning to defragment and Time Machine

Hi All,

I bought an extra SATA drives for my MacPro and last night I set about cloning my system disk to this new disk to produce a defragmented clone using SuperDuper as described here:

According to iDefrag my original system disk had over 4000 fragmented files (demo version will tell you this) and the cloned disk had just over 100. A great improvement! (I now realise I should have created the clone after booting in safe mode, I wonder if this will reduce the figure below 100??)

Anyway, I was quite pleased with that but when I came to turn Time Machine back on (which I updated just before doing the clone) it started doing a full back up of my cloned system disk, about 86GB. Should this cloned disk not appear identical to Time Machine as the original disk? Could it be because I've named the volume differently ie original sys disk = 'Mac HD', cloned sys disk = 'Sys DiskB' ?? Does anyone know how to overcome this and get TimeMachine to see it as the same drive? Is it as simple as calling them both the same, that could get confusing though???

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