On Thu, Jun 18, 2009 at 07:25:46PM +0200, Roy Sigurd Karlsbakk wrote: > On 18. juni. 2009, at 17.55, Tomasz Torcz wrote: > > > On Thu, Jun 18, 2009 at 03:56:23PM +0200, Roy Sigurd Karlsbakk wrote: > >> I have heard/read about systems from Sun and NetApp using SDs for > >> caching. Sun uses different SDs for read and write caching (one being > >> faster for reads and the other for writes). The storage solution from > >> Sun is based on Solaris with ZFS. > >> > >> I know too little about filesystems design to know exactly how they > >> do > >> this, but can someone think of a way this could be implemented in > >> btrfs? > > > > Linux already has second-level? cache layer, it called FS-Cache. > > For now, > > the sole user is NFS. btrfs could take advantage of FS-Cache also. > > > I googled around a bit for this, but couldn't find anything useful. > Where can I find anything about this second (or fifth) level caching? Will this help? http://www.linux-mag.com/cache/7378/1.html -- 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
