Re: Implementing a "sometimes" RAID on a laptop. (eSATA, SSD, RAID 1)

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> How does one set up a "sometimes" RAID ?   Or would something like
> rsync be better ?   What happens the first time I plug my laptop into
> the eSATA cable after being away from my desk ?  What happens if there
> is both new data and an error in existing data ?  How does the RAID
> software know the difference ?

For RAID 1 it doesn't. You want rsync or similar to make backups.

> How does one configure the single external eSATA RAID drive to back up
> (mirror) the data for both internal drives ?

You can get most of the benefit of an SSD (read performance) and set up a
RAID 1 with the SSD and part of the hard disk.


> 
> Question 4.
> 
> Can only a portion of the eSATA RAID drive be allocated to the RAID
> and the rest left to be mounted by the laptop for general access ?

Yes
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