On 17/08/10 19:40, K. Richard Pixley wrote: > On 8/17/10 11:05 , Dhiru Kholia wrote: >> On Tue, Aug 17, 2010 at 10:41 AM, K. Richard Pixley <rich@xxxxxxxx >> <mailto:rich@xxxxxxxx>> wrote: >> > Is there a limit to the number of snapshots that can exist on a file >> system >> > concurrently? >> >> According to https://help.ubuntu.com/community/btrfs "You can create >> as many subvolumes as you want, as long as you have storage capacity." >> >> -- >> Cheers, >> Dhiru >> > > Yes. But if there's a limit to the number of paths that can point to > a single file, then that's not strictly true. Rather, there's a limit > based on the number of snapshots pointing to the same file. Would that limit also apply to de-duplicated copies of a file ? Suppose I have tree under a btrfs file-system with lots of identical files. (eg zero length lock files), and I run a de-duplication script on it, to turn all those files into one, and then make a series of snapshots. 100 identical files multiplied by 100 snapshots (eg. daily for a few months), comes to a rather large number of links pointing to the same file. -- David Pottage -- 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
