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  Strange way of setting up a RAID array.. don't understand. 
 
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Mike L. Dec 03, 2005, 03:53pm EST Report Abuse
I was thinking of adding a second Hard-drive as a RAID 0+1 array. I have an ASUS P4P800-E Deluxe. The board has two IDE connectors onboard(Pri_IDE and Sec_IDE), another IDE connector which is designated as the Pri_RAID, and two SATA connectors. The Pri_RAID(IDE) and two SATA connectors are specifically for RAID only. So, to my knowlege from the reading the manual is that I would need to connect two identical drives on the Pri_RAID connector, one drive on the SATA and set everything up from there. But why ANOTHER drive on one of the SATA connectors?? If I'm already running two IDE drives off of the Pri_RAID connector, then where the hell does the third drive on the SATA connector come from.. That doesn't make sense to me.. I know all motherboards are different, and possibly something proprietary to the board itself. But if anyone has a similar setup or has set this up on the same board, then an explanation would be very much appreciated. Thanks in advance.


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Fixer Dec 04, 2005, 07:08am EST Report Abuse
>> Re: Strange way of setting up a RAID array.. don't understand.

G. G. Dec 04, 2005, 11:02am EST Report Abuse
>> Re: Strange way of setting up a RAID array.. don't understand.
mike,

My previous mb an ASUS P4S8X had a promise raid chip that had two serial and one Pri ATA133 connectors (not counting the two main southbridge IDE 1 and IDE 2 connectors). With my promise raid chip... it would allow me to do a raid 0 or raid 1 with two drives across the mix connectors. ex. two serial hdd in raid 0 or 1, one serial on either serial connectors and one on pri ATA133 connector in a raid 0 or 1, or the connectors could be used as regular storage drives without raid on either connectors. Maybe your is the same thing or it may have added features depending what onboard raid chip they used for your motherboard.

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Mike L. Dec 06, 2005, 07:44pm EST Report Abuse
>> Re: Strange way of setting up a RAID array.. don't understand.
I appreciate the help guys, and sorry I never replied sooner. I've been reading up alot on how to setup a RAID-0 function on my computer.. so far I feel confident with my studies. I too have a Promise chip onboard my Motherboard, but I've decided to use the ICH5R as my choice for setting up a RAID configuration utilizing the Intel Application Accelerator. I'm going to use two SATA drives and set them up in a RAID-0 configuration. Wish me luck!

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I am what you would call depressingly comfortable...
Gerritt Dec 07, 2005, 01:03am EST Report Abuse
>> Re: Strange way of setting up a RAID array.. don't understand.
Mike,
Just as an FYI, a RAID 0 gives you 0 redundancy!
It's not a true RAID implementation as there is NO redundancy.
A RAID 0 gives you speed by striping your data across partitions of the same size on multiple drives. (You can stripe across as many drives as you want, but will be limited to the smallest drive in the array. You will have acess to all of the storage space, but will have no redundancy)
A RAID 1 gives you no speed but total redundancy by copying everything to both drives (a mirror, so only 2 drives are needed, but any additional space requires an additional 2 drives and you will always loose 1/2 of your storage space)
A RAID 3 though perfered for some multimedia applications as been largely decommisioned due to better implementations. It stripes your data across two drives, and writes a checksum to a dedicated third drive that can reconstruct your date in the case of any drive failure. (a minimum of 3 disk is needed, and you required an additional 3 disk for any upgrade, and will always loose 1/3 of your storage space)
A RAID 5 implementation rotates the striped data and checksums, and is normally the most storage efficient of the redundant configurations (a minimum of 3 disk is needed, but you will loose only one disk worth of storage space no matter how many drives you have).

So if you want speed and redundancy and have 3 drives, get a RAID5 controller (theres some good ones for IDE and SATA from Promise Technology), if you want speed and redundancy and are willing to purchace 4 harddrives and loose half of the space then go with a RAID 0+1using the onboard.

Gerritt

Ad Astra Per Aspera
(A rough road leads to the Stars)
We all know what we know, and everyone else knows we are wrong.
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Mike L. Dec 07, 2005, 11:48am EST Report Abuse
>> Re: Strange way of setting up a RAID array.. don't understand.
Lol, thankyou very much for the info.. I'm impressed. I am aware of the fact that they'll be no redundancy or security for that fact. But to be honest, I'm not really worried about that. I just want the speed for a quicker responses, better thoroughput and performance. Besides I don't have much room in my case anyway for about 4 to 5 drives. With the studying and reading I've been doing, I figure this is the best choice for me. I'm not knocking your advice, don't get me wrong.. it was very well taken into consideration. Thanks again and I'll keep you posted.

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I am what you would call depressingly comfortable...


 

    
 
 

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