[ubuntu] md raid doesn't use all available space

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http://ubuntuforums.org – Hi guys! A few days ago, I started upgrading my raid (raid 5) from using 4x1TB to 4x3TB. Never done this before, so it took a while. I replaced the disks one by one and rebuilt the raid in between as I read in some guide. All worked fine, except fdisk complained a little bit about my disks being very large. Didn't think much of it at the time. Now when I finally grew the raid and the filesystem, it's only 6TB. The raid was 2.7TB before, so I expected it to be 3 times bigger now. Could it be that fdisk didn't handle my 3TB disks properly? (Hardware)