> > It's a 'Stack of Disks' > > > > If it is a stack of discs (platter)- and if something failed does > > it stand to reason that it would fail one disc at at time? > > BUT ---- Data is written on all of the #1 cylinders (tracks on the > disk), then writing moves to 'Cylinder #2', then Cylinder #3,......... > > > - so one's best security is to perhaps partition exactly to each disc? > So Partitions do NOT correspond to 'disks' (platter) > > > I am trying to get my head around this concept - that a partition is not a partition. Tried googling "Understanding Partitions" and "What is a Partition". All I found were basic descriptions of the fact. Even found a recent blog by Dan Knight on his partitioning: http://lowendmac.com/musings/08mm/partition-your-hard-drive.html But I am no further in understanding what is actually happening. I suppose it is some kind of 'virtual directory'? What makes no sense yet to me is how, say partition #3 could go bad, and not the others - if it they all bunched together. But then this question may be beyond the scope of the present discussion - maybe someone knows of a url that is 'Understanding partitions 101 for the average idget'? Thanks for all the help, I have decided on 3 partitions. Del
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