On Monday, November 27, 2017 11:30:13 PM CET Bill Kenworthy wrote: > Hi all, > I need to expand two bcache fronted 4xdisk btrfs raid 10's - this > requires purchasing 4 drives (and one system does not have room for two > more drives) so I am trying to see if using raid 5 is an option > > I have been trying to find if btrfs raid 5/6 is stable enough to use but > while there is mention of improvements in kernel 4.12, and fixes for the > write hole problem I cant see any reports that its "working fine now" > though there is a phoronix article saying Oracle is using it since the > fixes. > > Is anyone here successfully using btrfs raid 5/6? What is the status of > scrub and self healing? The btrfs wiki is woefully out of date :( > > BillK
I have not seen any indication that BTRFS raid 5/6/.. is usable. Last status I heard: No scrub, no rebuild when disk failed, ... It should work as long as all disks stay functioning, but then I wonder why bother with anything more advanced than raid-0 ? It's the lack of progress with regards to proper "raid" support in BTRFS which made me stop considering it and simply went with ZFS. -- Joost
