Question : Problem: install new drives in RAID 5 array

I want to install new hard drives into an exisiting Dell server.  Current configuration is three hot swap, 146 GB drives in a RAID 5 array.  There is one open bay for a fourth drive.  I want to install four 1TB drives in a RAID 5 array.  I know I will have to remove the three 146 GB drives and then use the Dell Open manage utility to install 2003 Server OS and create the new array.
 I will copy all the data to another server and also have a backup of it before proceeding.  I plan to copy the data back to the new drives when done.
My question is if something goes wrong when setting up the new drives, if I shut down the server and plug the old drives back in, will Server 2003 boot and will all the data still be there?  Any input about this procedure is appreciated.  Thank you
CJA

Answer : Problem: install new drives in RAID 5 array

You should be able to plug the old drives back and resume the business. However, there is one critical point that you will not want to miss: MARK YOUR DRIVES IN ORDER. Make sure you take a marker and mark the order of the drives so just in case you need to put them back, you don't mix up the order.

Other thing is you want to make sure your Dell server supports 1TB drive and over 2TB of space. Check with Dell support or google your server model specification for details.

K