On 31/1/10, Graydon, discombobulated, unleashed:

>Nice lady at Google got a *huge* data set on disk reliability and
>crunched it.  Essential take home point -- 3 copies, on 3 different
>spindles, or you WILL lose it.
>
>So, first up, you've got only 2 copies.  You're going to experience
>catastrophic data loss sometime.  You probably don't want that.  So you
>need a 3rd external drive.  (Different maker for the enclosure and the
>drive if you can swing it.)

Yup. Covered.

>
>Second, _why_ do you think deleting and replacing is a good idea?  OS X
>uses a file system where you shouldn't have to worry about fragmentation
>in any way.

As I have now found out. Just makes me even smugger.

>
>Third, if what you want is a complete wipe, don't delete files; format
>the disk.

I did.

Many thanks.



--


Cheers,
  Cotty


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