I have a p5k-v motherboard with Jmicron RAID 0 & RAID 1. I am doing a dual boot and both hard drives are shown in my other OS. I don't date write to it, but BIOS says that it is degraded, but Windows (xp sp3) says it is fine (raid gui)
The reason for looking for a smarter raid is that my power went off when I first started to configure and copy the data to my new raid, and I had to rebuild. To my amazement, the gui just re-copied the entire 1tb drive. Not so smart, I would have thought the is would do a comparison and fix itself. Is this commonplace?
Since RAID 1 is mirrored drives, a degraded array will give a single drive with data intact. Windows does not see two drives, only the ARRAY. If you rebuild the array, all the data is copied from the OK drive to the other drive. The RAID contro;;er will then report array OK, but windows will only see a single drive.
The reason for looking for a smarter raid is that my power went off when I first started to configure and copy the data to my new raid, and I had to rebuild. To my amazement, the gui just re-copied the entire 1tb drive. Not so smart, I would have thought the is would do a comparison and fix itself. Is this commonplace?
Comparing blocks on each drive and then making the decision whether you need to copy data or not would actually be slower than just copying the data. Copying the data means reading 1TB from the source drive and writing 1TB to the mirror drive. Comparison would involve reading 1TB from both drives, then writing wherever there were differences. The total data processed would be more than just copying the whole drive in the first place.
--------------- - SomeJoe7777
"Did he dazzle you with his extensive knowledge of mineral water? Or was it his in-depth analysis of, uh, uh, Marky Mark that finally reeled you in?" - Troy Dyer (Ethan Hawke), Reality Bites, 1994
