On Wed, Feb 2, 2011 at 6:10 AM, Edward Ned Harvey <opensolarisisdeadlongliveopensola...@nedharvey.com> wrote: > 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
That's assuming that the drives have the same number of platters. 500G drives are generally one platter, and 2T drives are generally 4 platters. Same size platters, same density. The 500G drive could be expected to have slightly higher random iops due to lower mass in the heads, but it's probably not statistically significant. I think the current batch of 3TB drives are 7200 RPM with 5 platters and 667GB per platter or 5400 RPM with 4 platters at 750GB/platter. -B -- Brandon High : bh...@freaks.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
