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Upgrading HDD on dell precision t3500 Server with RAID1

Hi experts,

 I have a T3500 Server running Windows 2008. This server currently has 2x5000GB Mirror drives using the built in RAID controller of this system. I'm running low on disk space and want to upgrade to a 1TB. I am going to clone the 500gb to a 1tb. My question is, once I clone the hard drive to the 1tb, can I put in put the 2x1tb drives in and will the raid1 still work? or do I have to delete it and rebuild it? I don't have to put in both 1tb drives and rebuild the raid1 and then install everything from scratch do I? What I am expecting to happen is the following:
1. clone the 500gb drive to a 1tb drive.
2. buy another 1tb drive for raid1.
3. put in both 1tb drives and leave the raid as raid1.
4. boot to OS.

what do you guys think?
1 Solution
If you can clone the drives can you also use the image for a bare metal restore? If so, make the image of your existing array, replace the 500GB drives with shiny new 1TB enterprise drives, configure them as RAID1 using the controller utility, and restore your backup image to the new 1TB array.
AnonymousBusiness Consultant (Owner)Commented:
In my experience with RAID you cannot increase drive space by adding larger drives one drive at a time. That does not work.

So you must backup and restore as per the prior post.

.... Thinkpads_User
Rob KnightConsultantCommented:

This product claims to support RAID cloning - give this a whirl?



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noxchoGlobal Support CoordinatorCommented:
RAID1 should clone 500GB to 1TB and then when you insert the second 1TB mirror the previously cloned data to new 1TB.
After that if you do not see the new space in Windows Disk Management you need to go to RAID Utility and increase the size there.
Then in Windows Disk Management right click on partition - Extend and allocate the space.
frankbustosAuthor Commented:

 So if I understand correctly you are saying this. Replace the second mirror drive with a 1TB drive then  boot up and let the first 500 drive mirror to the second new 1TB drive. Then once it is mirror remove the 500gb drive and put in a 1tb drive and that will work? I don't need to go in and rebuild the array?
noxchoGlobal Support CoordinatorCommented:
Yes, all correct. And yes that must work as the mirror is done this way. The only thing is that you will ahve to manually allocate the new space to existing RAID if controller doesnt do it automatically.
frankbustosAuthor Commented:
This worked for me!
noxchoGlobal Support CoordinatorCommented:
Thanks for feedback.
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