On Tue, Jan 18, 2011 at 6:40 AM, Karl Wagner <k...@mouse-hole.com> wrote: > What I would like to see is an extension to ZFS's hierarchical storage > environment, such that an additional layer can be put behind the main pool > vdevs as an "archive" store (i.e. it goes > [ARC]->[L2ARC/ZIL]->[main]->[archive]). Infrequently used files/blocks could > be pushed into this storage, but appear to be available as normal. It would, > for example, allow old snapshot data to be pushed down, as this is very > rarely going to be used, or files which must be archived for legal reasons. > It would also utilise the bandwidth available more efficiently, as only data > being specifically sent to it would need transferring.
This is exactly what an HSM does. Take a look at SamFS / QFS. -B -- Brandon High : bh...@freaks.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
