RAID implimetation for SAMBA server

I am unexperienced with RAID. My company recently
perchased a brand machine for a file server. It has
four 73 GB SCSI HDD with a RAID controller. I want to
impliment RAID for file server. My questions are:

1. What lavel of RAID i have to impliment which will give
me high read speed and hot swapping.

2. How i will impliment raid. After installing OS or before? And how should be partitioned the HDD?

3.Could any one show me a link of step by step howto for
RAID.
saki_bdAsked:
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ppfoongCommented:

If you read files much more often than writing files, RAID 5 is a good choice. If you read and write files equally, or write more than read, RAID 10 is a good choice.

You should configure the RAID before installing anything. You should have access to the RAID management system with bootup hotkey, or RAID utility disc that comes with the server. Read the documentation of the server on how to access the management system and configure the RAID. You will need to group the physical harddisk into logical RAID harddisk. Then, the server will see the harddisk as the logical RAID harddisk. You install the OS on the logical harddisk as usual. Partitioning the logical harddisk is as if partitioning a non-RAID harddisk. Nothing different to the end user once the RAID is up and running. The only extra thing is that you need to load the RAID driver for the system to recognise the logical RAID harddisk. The driver should reside in one of the installation CD of the server.

For RAID tutorial, see the link below. Click on the RAID level links to read the tutorial.
http://www.acnc.com/04_00.html

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pjedmondCommented:
From what you've said, the most sensible system for you is RAID 5 (3 drives required) plus 1 drive hot swap.

You need to configure the hard drive array prior to installing the system. This may either be using provided utilities or in the BIOS somewhere.

Once you are set up and running, I recommend that you pull any one of the 'live' drives out, and check that you fully understand the 'repair' process to get the hot swap up and running. You don't want to be panicing over this when your server is 'life'!!

A nice basic tutorial at:

http://www.laus.hr/sistem/white-papers/raid-tutorial.html
pjedmondCommented:
A number of useful links:

http://www.techtutorials.info/hwraid.html
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