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Inplace Migration Server 2003 standard to Server 2008 64bit

We are preparing to do an OS migration from Server 2003 standard to Server 2008 64 bit.
This is our principle file server, so losing permissions on the users files and profiles is not an option. Below is the checklist for the operation as I envision it. Can anyone see a problem with it or suggest an enhancement or improvement? Thanks.
1- Create a bootable backup of the disk
2- Add a single disk to the array on it's own unit. Backup user files to this disk using windows backup.
3- Add 2 disks to array in new unit, raid 0. Make unit bootable. Install Server 2008 to this array.
4- Wipe out old array with server 2003 and user files.
5 - Create new array on 4 disks Raid 10.
6- Add array to OS as new drive and format
7- Restore user files to new array.
8- Update shares to match new file location.
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JP_TechGroup
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JP_TechGroup
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1 Solution
 
GeodashCommented:
The easiest way to do this, if you are not migrating it to a new physical server, is to back up the shares with your backup software, do your work on the drives and then restore it. Any decent backup software will backup and save all of the NTFS permissions as well.
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JP_TechGroupAuthor Commented:
Agreed, but we are having performance issues with the current array and I want to wipe it out and start fresh... I also want to take this opportunity to put the OS on it's own array.
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GeodashCommented:
When you say performance, are you using a RAID card or is it built in to the Manufacturers motherboard. I have seen performance issues as a result of either of theses. I would try updating the BIOS on the MB to the newest, and if its a card, look for a firmware update.

How many people are accessing the data on the file share? What is the speed and interface of the disks? You may be adding to the problem if you add disks and the bottleneck is the controller.
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JP_TechGroupAuthor Commented:
Using a RAID card, 3ware 9500S.
I omitted the BIOS update of both the motherboard and the RAID card from my list, but that is in the plans as well.

We have several shares, but the one with the largest throughput typically has 48 connections. Drives are all Western Digital RE3 WD1002FBYS 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s
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GeodashCommented:
SATA drives may still show a bottle neck vs SAS, but you should be ok with that few of connections. The rest of your list, I would say looks good. I cannot see any reason it wouldn't work.

The performance issues you were experiencing would still be a red flag for me. The OS on the same array shouldn't cause that much of a hit, but moving the shares to its own array will definitely help. I would be more inclined to uses SAS drives, but I know the cost is significantly different, but only 1TB wouldn't be too bad.
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JP_TechGroupAuthor Commented:
Agree with all you said! I'm constrained by what I have on hand. I inherited this box and a case of those drives so that's what we're going with! Thanks
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