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Retrieving data from RAID 5

Posted on 2004-10-13
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I have a RAID5 array on a broken Epox 4PCA3+ motherboard. If I can't get a replacement motherboard, how can I retrieve the data so I can transfer it to a new server. OS is Windows 2000 Server.

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Question by:helpint
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17 Comments
 
LVL 6

Expert Comment

by:rustyrpage
ID: 12302074
I could be wrong, but I would think that you would just need to hook the hard drives up to a RAID controller on another server that already had a booting operating system...then you would be able to access it as an additional drive set.
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LVL 69

Expert Comment

by:Callandor
ID: 12302102
In general, you need something with the same controller as the original.  I have heard that some "families" of controllers are also compatible, but my first try would be to get the same motherboard.
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LVL 6

Expert Comment

by:rustyrpage
ID: 12302127
I guess I should have asked if the crashed situation had an on-board RAID, or if you had a RAID card.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=80143&item=5129095159&rd=1&ssPageName=WDVW

Talk to that seller there (out of the US)...they were trying to sell your motherboard in a bundle system last week & no one bought it, so maybe it is available to buy.
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Author Comment

by:helpint
ID: 12302258
The controller on the original 4PCA3+ has a HPT374 embedded controller and I have a similar Epox board but it has a HPT372N. I believe they both have SATA Raid. If I boot the new board up with the 3 hard drives, the RAID sees them but all I get is create RAID etc, it doesn't see them as a RAID array.

Does this help?
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LVL 69

Expert Comment

by:Callandor
ID: 12302312
It looks like you may need the exact same HPT374 controller.
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LVL 7

Expert Comment

by:crazijoe
ID: 12302350
You must have been using a software RAID configuration because the HPT374 does not support RAID 5.
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Author Comment

by:helpint
ID: 12302403
According to the Epox Website:

• Extra 4 IDE ports by Highpoint 374 IDE RAID controller supports RAID 0,1,10,5

I'm almost sure I had it configured on RAID 5.
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LVL 69

Expert Comment

by:Callandor
ID: 12302479
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LVL 7

Expert Comment

by:crazijoe
ID: 12302524
I guess I should have rephrased that question.
You must be using a software RAID 5 because the HPT374 does not support a Hardware RAID 5 configuration.
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Author Comment

by:helpint
ID: 12303816
Does that a difference in terms of retrieving the data?
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LVL 7

Expert Comment

by:crazijoe
ID: 12307992
I have never tried to revive a software RAID 5. Probabably the easiest way is to use your similar Epox board and get a PCI RAID card that has a HPT374 chipset on it.
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Accepted Solution

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crazijoe earned 2000 total points
ID: 12308018
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Author Comment

by:helpint
ID: 12308048
Thanks. I'll see if that works.
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LVL 6

Expert Comment

by:rustyrpage
ID: 12308801
Did you see my link to the same motherboard?
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