On Tue, Aug 19, 2014 at 11:21 AM, M G Berberich <bt...@oss.m-berberich.de> wrote: > Hello, > > we are thinking about using BtrFS on standard hardware for a > fileserver with about 50T (100T raw) of storage (25×4TByte). >
I would recommend carefully reading this thread titled: "1 week to rebuid 4x 3TB raid10 is a long time!" http://comments.gmane.org/gmane.comp.file-systems.btrfs/36969 There are multiple methods for replacing a device in a Btrfs RAID array. If I understand the conclusions of this thread, you might still expect 12-14 hours to rebuild after replacing a 4 TByte device, assuming you use the optimal replace commands. With 25 devices, that leaves an uncomfortable period of time where another device might fail. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html