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RAID Configuration

I want to configure a server with 3 x 750gb hdds to use RAID 5. I would lik eto have 3 partitions c:\ d:\ e:\ - one for windows.

Is it better to create one large volume and then partition or create 3 partitions?

Also, what is the best strip size to use. the server is going to b used as domain controller, playing avi's (ocasionally) and mp3 (occasionally) copying cd's?

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nappy_dThere are a 1000 ways to skin the technology cat.Commented:
I would suggest that you createa 1.5TB RAID set with your three drives and partition as necessary to achieve the necessary  volumes sizes you require.

As for the size of the blocks when creating the RAID set, go with the default provided.  There are many varying thoughts on this see if this article helps you any http://storageadvisors.adaptec.com/2006/06/05/picking-the-right-stripe-size/
nappy_dThere are a 1000 ways to skin the technology cat.Commented:
Also, you really should have 4 drives for your RAID set.  the 4th is a hot spare that would take over in the event of a failure until you get a replacement drive.
Create a single RAID array (it will be a little under 1.5TB of usable space as you will lose 1 drive's worth of space for the parity), create a C (system) partition and enable the rest of the volume to be a dynamic disk. Allocate space to other partitions (d / e / etc) when you need it as the dynamic partitions can be extended on demand and new logical drives created as needed.

For size it depends what you want to do. For a server you probably wont need more than 20GB for the system partition, but the space required depends on what will be installed. With the space you have available you could go to 50GB or even 100GB for the system. Most of our servers don't have more than 20GB for the system partition.
It is not really possible to change the system partition size once it has been created so go for slightly more space than you think you need if in doubt.

For D and E, I'd reccomend starting with 100GB partitions (or more if you feel its necessary) - as long as you've set the disk to be dynamic its easy to extend these later in the disk management tool in windows.
Please visit the link below:
- How to manage boot partition for server.
- Many excellent infor for server:
This link provided by Leew.  
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