On Mon, 2008-07-28 at 09:36 -0400, Ric Wheeler wrote: > One other thought - is there a way to give non-rotational devices also > some indication of latency? (FLASH is slower than enterprise SSD is > slower than DRAM ramdisk for example)? Not at the moment ... since libata uses SAT, we're bound by what the SBC mode pages can do for us, so the VPD only reports rotational speed (or a specific flag for non rotation) and form factor. There was once a flexible disk mode page that showed some of this, but it's been listed as obsolete since SBC-2. There are, perhaps other VPD parameters we should be paying attention to, like Block Limits (B0) which shows optimal transfer length and granularity. James -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
