On Feb 2, 2011, at 6:10 AM, Edward Ned Harvey wrote: >> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- >> boun...@opensolaris.org] On Behalf Of James >> >> I assume while a 2TB 7200rpm drive may have better sequential IOPS than a >> 500GB, it will not be double and therefore, > > Don't know why you'd assume that. I would assume a 2TB drive would be > precisely double the sequential throughput of a 500G. I think if you double > the surface density in two dimensions (a flat surface) you end up with 4x > the storage capacity. Hence, a 2T drive should have 2x the 1-dimensional > track density, and should be 2x faster sequential throughput than a 500G > drive, with all other things being equal.
They aren't. Check the datasheets, the max media bandwidth is almost always published. -- richard _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
