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Raid 1 problem

I

ingeborgdot

Golden Member
The raid 1 on my friends machine does not appear to be working correctly. When it starts up it looks for the raid and then when it finds it there is a message that says degraded on one and error on another. What does a person do to get this fixed? I am pretty sure that this means one of the hdd has gone sour. When I do replace it can I replace it with a larger hdd? There are 320 in there now but I would like to replace it with a 500gb or larger. I know that it will convert it to only a 320 but shortly I would like to replace that one with a 500gb also. Will that work? If I would put in a larger hdd let it rebuild and then put in a larger one to replace the one that is still good to get a larger hdd array? Thanks.
 
A RAID 1 array can be broken up by removing the HDDs. Each is a duplicate or mirror of the other, and each can be then connected and accessed as a single drive. The bad one then becomes apparent.

A new array can be built with new drives, and the good remaining single drive can be cloned to the new array after it is built.

I have done this a few times over the years when upgrading to larger capacity drives, and have never lost any data in the process.

My ace in the hole is always an external USB drive that is a clone of the RAID 1 array drives. It is always good to have a backupo drive - RAID 1 provides redundancy but not necessarily a good backup. File corruption and/or malware getting into the array will affect all drives in the array equally.
 
I have placed the new hdd in and it shows it is a good hdd with the smart test. The problem is how do I rebuild it? There are no options anywhere to do this. It is a gigabyte board with an Nvidia nForce 570sli running it. When I go into F10 it gives me 3 choices of what to do but when I hit R for rebuild it just goes back. There is no other option any place that I can see to rebuild. WHAT do I do?
 
Ok, now I have a question on the hdd itself. Can I partition the hdd and then use the one part for the raid and the other for extra storage? Is that possible? Just a thought.
 
depends on the controller.

intel ich - yes - you can. some raid controllers are drive-centric oddly.
 
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