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Hi Dalight,

For SBS 2003, shall I use RAID Level 1 or RAID Level 5.
Which will be very useful, because RAID Level 1 will mirror full hard disk right? But RAID Level 5 will mirror only data.

Please reply.

RAID 5 does not "mirror" disks in the same way that RAID 1 does. It actually distributes the data across several disks. Read this to get an understanding of the differences between RAID implementations.
To keep it simple and to get up and running as soon as possible if a disk fails, stay with RAID 1. The only downside to it is that it's the least efficient RAID implementation in terms of disk redundancy. However, with the cost of disks nowadays, it's not a major issue.

Can you please,
Explain how to configure Hardware RAID Controller on SBS 2003?
How to Configure Software RAID on SBS 2003?

The procedure for configuring a Hardware RAID controller usually depends on the piece of hardware in question, but you generally follow the following steps:
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1. Install the controller card, or enable RAID in the system BIOS if it is an on-board controller.

2. Access the controller BIOS and set up the required RAID configuration.

3. Install the drivers from the Manufacturer's disk during the Windows installation process. You will need to press "F6" when you're prompted to install third party SCSI or RAID drivers.

4. You may also need the driver disk again at a later stage in the installation process.

5. After Windows has been installed, you can usually manage the RAID array from within Windows using a manufacturer-supplied utility.
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To configure software RAID arrays on Windows 2003, check out these Microsoft KBs:

1. How to mirror the system and boot partition (RAID1) in Windows Server 2003

2. How To Establish a Striped Volume with Parity (RAID-5) in Windows Server 2003