Almost lost 300GB's of data, lolz

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TheMajor

PowerQuest / Opera
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Accidently connected my third disk to my RAID1 array. Everything got deleted from it because it started rebuilding the array.

Luckily I also have a complete copy of my third disk, so I didn't lose anything (I hope).

The rebuild process takes forever, even though I only changed a couple of files while the second RAID1 disk was disconnected. I guess it just copies everything.

I wonder how it knows which drive should be copied when disconnecting disk 2, changing some files. Switching disk one to the second connector, changing some files, shutting it down and putting the disks on their original connectors. Does it look which drive has been last modified or something?
 
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