On Fri, Oct 1, 2010 at 11:46 AM, David Blasingame Oracle <david.blasing...@oracle.com> wrote: > I'm working on this scenario in which file system activity appears to cause > the arc cache to evict meta data. I would like to have a preference to keep > the metadata in cache over ZFS File Data > > What I've notice on import of a zpool the arc_meta_used goes up > significantly. ZFS meta data operations usually run pretty good. However > over time with IO Operations the cache get's evicted and arc_no_grow get > set.
<snip> > So, I would like to limit the amount of ZFS File Data that can be used and > keep the arc cache warm with metadata. Any suggestions? Would adding a cache device (L2ARC) and setting primarycache=metadata and secondarycache=all on the root dataset do what you need? That way ARC is used strictly for metadata, and L2ARC is used for metadata+data. -- Freddie Cash fjwc...@gmail.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
