Dell 2850 running out of drive space: Replace existing drives with larger capacity.

Hi, my client has a 2850 with 3 x 136gb drives, and we’re desperately running out of space. 12gb+124gb on D-Drive
(Dell Service TAG DKC7N1J )

After researching, am I right in the following...

1-Buy decent back up software (Acronis / Paragon) what is your  favourite flavour?
2-Back up existing array.
3-Remove 136’s and replace with 300/400 gbs (3 x off)
4-Reconfigure the Prec 4 raid controller
5-Restore c, and d partitions from back up say 100gb for C-drive and balance for D-Drive.

(So if it goes wrong, I can revert to original drives)
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A ProorocuISMCommented:
1. I will go for Acronis

The other steps are ok , if you have a ok backup then you can go and mess things up :).

GordonRaeAuthor Commented:
Thanks Aurel. Which particular Acronis product would I need?
noxchoGlobal Support CoordinatorCommented:
My recommendation is Paragon. It is simple and solid solution and you do not need to overpay for features you need. Drive Backup 10 Server Edition:
With its help you will be even able to migrate to new hardware in case of server total disaster.

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noxchoGlobal Support CoordinatorCommented:
Instructions are quite simple here:
-Backup entire HDD (RAID detected as single HDD by Windows)
-Reconfigure RAID with new drives
-Boot the server from WinPE Recovery CD and load drivers for RAID controller if needed.
-Restore from backup
-Boot to Windows
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