On Wed, 2010-07-21 at 07:56 -0700, Hernan F wrote: > Hi, > Out of pure curiosity, I was wondering, what would happen if one tries to use > a regular 7200RPM (or 10K) drive as slog or L2ARC (or both)? > > I know these are designed with SSDs in mind, and I know it's possible to use > anything you want as cache. So would ZFS benefit from it? Would it be the > same? Would it slow down? > > I guess it would slow things down, because it would be trying to read/write > from a single spindle instead of a multidisk array, right? I havent found any > articles discussing this, only ones talking about SSD-based slogs/caches. > > Thanks, > Hernan
I think yes, it would probably slow things down, at least for typical usage. However, there is a small change it might improve things by offloading this functionality from the main spindle(s) to separate ones. But I think you'd be better off expanding a stripe than using a disk in this way. - Garrett _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss