On Tue, 4 Nov 2014, James Bottomley wrote: > On Mon, 2014-11-03 at 16:06 -0500, Dale R. Worley wrote: > > Was there any resolution as to how large disk drives would be handled > > if their interface did not support the "capacity" request that would > > tell how large they were? > > Realistically no ... unless someone comes up with a reliable heuristic > to give us the size. I posted a patch to allow the user to override the reported capacity: http://marc.info/?l=linux-scsi&m=140993840113445&w=2 Nobody responded to it. > > Unfortunately, such devices work OK with Windows (since Windows trusts > > what the partition table says), you can't just say to the salesperson > > "It has to work on drives over 3 TB." > > This is a stopgap: your 3TB drive can be guessed as the 16 bit capacity > plus 2TB, but the same won't happen for a 5TB device. Believing the > partition table gives us a chicken and egg problem because something > still has to get the partition table on to the device. > > I don't think "don't buy something that doesn't work" is a hugely > unreasonable response to this. The problem is knowing beforehand whether it will work. Once you buy the device and can test it, returning it is annoying and time-consuming at best. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
