On Thu, Dec 08, 2016 at 03:15:38PM -0500, Jeff Mahoney wrote: > On 12/8/16 1:36 PM, Christoph Anton Mitterer wrote: > > I just wondered whether out-of-band/"offline" dedup is safe for general > > use... https://btrfs.wiki.kernel.org/index.php/Status kinda implies so > > (it tells about unspecified performance issues), but this seems again > > already outdated (kernel 4.7)... > > SUSE supports it in SLE12 using our 3.12 and 4.4 -based kernels. There > haven't been a lot of changes to the kernel component of it. It's > pretty simple: check to see if the ranges are identical between two > files and then reflink between them. > > > Any other things in terms of possible issues, data corruption, etc. > > that one should know when using deduplication? > > There shouldn't be. We haven't had any bug reports at SUSE. I use it on busy machines on ancient kernels (3.14, one 3.13) without any hint of problems other than dedupe itself being slow. Meow! -- u-boot problems can be solved with the help of your old SCSI manuals, the parts that deal with goat termination. You need a black-handled knife, and an appropriate set of candles (number and color matters). Or was it a silver-handled knife? Crap, need to look that up. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
