On 2013-07-22 14:50, Tollef Fog Heen wrote: > There are practical problems with your suggestions, such as resizing the > RAID taking a very long time when we add a new disk (you're looking at > weeks of seriously reduced performance).
That seems like a limitation of software, at one of the lower layers. I did not mention ZFS until now, because I didn't want limit anyone's thinking to filesystems. But I did have it in mind all along. ZFS allows adding drives to an existing pool to increase its capacity when needed. That does not require a scrub/resync. They could be added as mirrored pairs somewhat like being able to extend a RAID10. Or you could add groups of disks at a time, each configured like RAID6. And ZFS can also take file-level snapshots, which would possibly allow for a simpler implementation of snapshot.d.o to be based on it... Regards, -- Steven Chamberlain ste...@pyro.eu.org -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/51ed325d.7060...@pyro.eu.org
