Backup solution for 2 departmental servers

I am it for small company (ie no money to buy tape backup solutions). I want a redundant, off-site solution.  Would the following satisfy this:

Using 2 external 500gb HD:

Do full backup everynight rotating the drives every day when I come in.  For example, I would bring in D2 Mon Morning and take home D1, the next day bring in D1, take home D2, etc.  Will this not assure that I always have atleast 1 day ago?
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bjv211Asked:
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Lee W, MVPConnect With a Mentor Technology and Business Process AdvisorCommented:
I would suggest you have a read over my backup comment - which grew into a backup web page.  

In short
I would probably suggest adding a 3rd hard drive to that rotation.  Your solution would PROBABLY be fine, but more information is really needed before you could be certain it's appropriate.  For example, how much data are you backing up?  Are there any regulatory requirements for keeping the backups over a long term or keeping them secure?  How fast is the data growing?

In detail, read the link:
http://www.lwcomputing.com/tips/static/backup.asp
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MessHallManConnect With a Mentor Commented:
The solution that you proposed should work without any issues. I am currently using a solution similar to this for my work PC.
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bjv211Author Commented:
the data is stable, and I have allowed for a 500% growth just in case.  There are no security issues, and no need for archiving daily backups.
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bjv211Author Commented:
We currently use volume shadow copy as well
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bjv211Author Commented:
leew, how do i know if the External drives use RAID 0 or contain a single drive. I tried to look on the website, but couldnt find specific details.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
So my link and related information was of no help to you?
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bjv211Author Commented:
leew i apologize, i had every intention of splitting points (as i always do, when needed) b/c your page helped.  i forgot when i awarded points!!  is there any way to go back now?
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Most external drives are going to Standard single drive enclosures.  However, ones larger than the maximum available drive size (currently 750GB as far as I've seen), will certainly be a RAID configuration.  It is POSSIBLE (though unlikely) that some of these units will be configured in a safer RAID 5 configuration.  Sometimes it's not easy to tell if the external drives are RAID 0 or not - look over the specs of the unit, ask sales people at the store, or call the manufacturer (possibly through a tech support line) and ask.
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bjv211Author Commented:
well thats convenient for you haha
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bjv211Author Commented:
got 2 lacie 500gb bricks, seem great!! thanks
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