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dropped S-ATA SILICON IMAGE s3112 raid configuiration [mirrored drives]

Posted on 2004-08-08
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Last Modified: 2008-02-01
Hi, I have a Gigabyte GA-8KNXP M/B Pentium 3.0ghz cpu,ATI Radeon 9800 provideo card 1gig ddr400 ram two western digital 120gig 8mbcach S-ATA HDD'S. My problem is that when I set up the S-ATA sil s3112 as a mirrored raid set it worked perfectly three months later it dropped a hdd it still runs ok but at startup it tells me that I have a dropped raid. My question is how do I get the raid back to both be mirrored. I have tried the setup that it asks me to do but when in the program it will not let me do anything [silicon image program] If I want to change from mirrored to stripe do I have to reformat and start over again!!. I am using this system as a high end gaming pc, Which method is best for faster performance mirrored,stripe or mirrored plus stripe!!.
Any help on this matter would be appreciated.
Mike
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Question by:pro4mem8
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wlennon earned 2000 total points
ID: 11925804
Hello por4mem8, I am not sure you are still having a problem or not, just noticed this question when management alerted me, it was so far down the list...our apologies!

RAID array 1 (Mirrored/srtiped): RAID Level 1 provides redundancy by writing all data to two or more drives. The performance of a level 1 array tends to be faster on reads and slower on writes compared to a single drive, but if either drive fails, no data is lost. This is a good entry-level redundant system, since only two drives are required; however, since one drive is used to store a duplicate of the data, the cost per megabyte is high. This is usually referred to as mirroring.

RAID 0 is not redundant, it does not really fit the "RAID" acronym. In level 0, data is split across drives, resulting in higher data throughput. Since no redundant information is stored, performance is very good, but the failure of any disk in the array results in data loss. This level is usually called striping.

I am using the Wester Digital's 74gb 10,000 RPM Raptors in a RAID 0 for performance, w/P-4 3.4 Extreme HT Processor on an Asus Mainbaord.  But I have 2 Exteranl WD 160gb USB 2.0 HDD for system back ups.

On to your question, if you wan to go with (Striped RAID 0) or Mirrored again, you will have to reformat your system.  Striping uses a constant I/O balancing of data, and is often used in networking systems which may use from 2 to 200 or more drives.

Hope this helps, and again...sorry we didn't see your question.

wlennon
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