Not your fault, the post was hastily composed and not very specific.
When I built my new rig, I bought (3) 320GB Seagate 7200.9 (I think) drives. Two were placed in a RAID 1 array, and the third was placed in an external enclosure for backups. Do not overlook this important piece, as ALL HDDs will eventually crash and burn, it's just a matter of
when.
The array was partitioned into ~50GB for OS & apps and the rest for data. When booted into XP, the setup shows the OS partition as C:, and the data partition as D:. I used My Documents redirection to place that folder on the D: array.
A fourth drive, a 36 GB WD Raptor, was used for the Vista installation. It appears as V: when I'm booted into XP, but changes to C: when booted into Vista. D: remains as the Data array. This took a little drive renaming in Vista but once set it remembers the drive letter.
I set up a sub-directory of XP's now-redirected My Documents folder (on D

called VDocuments and redirected Vista's My Documents to that folder.
So, whether booted into XP or Vista, the D: array is always the data array. This setup works nicely for backups, as I don't need to backup the entire C: drive, just the D: partition. I also redirected my Outlook Express store to the D: drive, and if I used Outlook I would have the .PST files there as well.
I always name my backup drive B:, as it is almost always available. I leave my backup drive OFF when I'm not using it, when turned on it always shows up on both XP and Vista as B:. Hope this is more clear.
Tony
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