On Tue, Dec 2, 2014 at 12:00 AM, Roman Bysh <rbtc1@rogers.com> wrote:
The main problem in btfs is when you get "csum" errors in the filesystem. See the errors I posted earlier. When I restored my earliest snapshot the csum errors still existed.
Checksum error means filesystem corruption. btrfs snapshots cannot protect against it - snapshot is frozen state of filesystem, so if filesystem has any corruption it is frozen in snapshot as well. If you have redundancy on *filesystem* level (RAID1 or similar) it can reconstruct failed block from another copy (I wonder, how it plays together with read-only snapshots ...); otherwise there is really nothing you can do short of restoring from backup or deleting corrupted files. http://www.gattis.org/Work-and-Tech/operating-systems-and-applications/unix/... Now *why* you got checksum errors is different question. It could be hardware issue, it could be btrfs bug. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org