Information on RAID, Table size calculation

Where can I find some info on RAID 1 and RAID 5. Can we implement both on
One machine. To do so how many harddrives are needed along with RAID
controllers(1 or 2)?
What's the best way to calculate table space/db size requirement with
varchar, bigint, image and text fields. Can I find a spreadsheet etc on the
net?
Also can some one post scripts to backup and restore (Point in Time) ? Any
good web site on backup, restore and tracing?
Thanks
BVR
Please read http://www.baarf.com/ before deploying any database on top of
RAID 5.
GertD@.SQLDev.Net
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"Uhway" <Uhway@.discussions.microsoft.com> wrote in message
news:0B3439D9-DBD6-4BEF-B4B3-27B37FFD8529@.microsoft.com...
> Where can I find some info on RAID 1 and RAID 5. Can we implement both on
> One machine. To do so how many harddrives are needed along with RAID
> controllers(1 or 2)?
> What's the best way to calculate table space/db size requirement with
> varchar, bigint, image and text fields. Can I find a spreadsheet etc on
> the
> net?
> Also can some one post scripts to backup and restore (Point in Time) ?
> Any
> good web site on backup, restore and tracing?
> Thanks
> BVR