I am running a small web server for a few (under 25) websites that host shopping carts, mysql databases, PHP apps, etc. The server is nothing more than a single 900Mhz PIII with a Gb of RAM and a single IDE 250Gb Hard Drive. I am starting to get larger clients with more demands and Its time to move up to a RAID Server with redundant power supplies, dual processors, more RAM, etc.

I purchased a COMPAQ DL380 G2 SERVER Dual P3 1.4GHz / 1.2Gb EEC RAM / 109Gb RAID over 6 SCSI disks / Dual Power / Dual NICs.

My question is .... Is there a way to image my current Centos 4.2 Server that is on a single PIII 900Mhz box with a single EIDE 250Gb HD and lay it onto a Dual PIII , Hardware RAID 5 (6 SCSI disks in the array) System?

Thanks for your input.

Well it is a way, but you'll have to know what you're doing and most probably re-compile the kernel for SCSI/RAID/NICs drivers.
It goes like this:

- boot new server with a linux live cd, create partition and format them;
- put the 250GB IDE hdd in the new server, boot with the live cd again, mount the old hdd, copy everything over to the new hdd, "chroot" to the new hdd (where you copied everything),run your bootloader (like "lilo"), remove old hdd, pray & boot .

This is a mere proof of concept. Does it work? Yes, I did it myself. Does it require advanced Linux knowledge? Yes. Do I recommend it? Yes, if you know what you are doing.
The alternative would be a fresh install on the new server (latest distro,software etc) and copy users,home directories.configuration files,databases over. Whatever you do, DO NOT throw/sell/give the old 250GB HDD away, keep it for 6 - 12 months it might prove to be a lifesaver .

Good luck.