Yes, luckily it does - so no lasting damage is/was caused. Needless to say though, until the fault was pinned down to the kernel change, there was a serious moment of panic about the possible loss of 70TiB + of data!
According to the person from the link in my first post, the problem didn't appear to exist in 2.6.32-39 but was there in 2.6.32-41; but I encountered it in 2.6.32-40. They were, however as far as I can tell, using a vanilla Debian; but assuming these kernel numbers tally-up with Ubuntu's, it appears the problem crept in somewhere in the 2.6.32-40 release. Looking in the Debian kernel change-log, I wouldn't mind betting this would have had something to do with it: [ Ben Hutchings ] * Add longterm releases 2.6.32.47 and 2.6.32.48, including: ..... - md: Fix handling for devices from 2TB to 4TB in 0.90 metadata. ..... Unfortunately this is a very busy production machine and I have very limited time to pin point the issue further. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/974275 Title: md trancates devices with kernel 2.6.32-40-server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/974275/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs