On 12/4/2016 3:14 PM, Volta wrote: > On 4 December 2016 at 01:55, Josep Lladonosa <jllad...@gmail.com> wrote: >> Maybe this value is not drive related but usb bus related. Is that a usb >> drive? I guess so. Found similar cases. One of them: >> >> https://www.mail-archive.com/search?l=linux-...@vger.kernel.org&q=subject:%22Re%5C%3A+questions+about+uas%22&o=newest&f=1 > > Interesting! Yes, as you've guessed, it is a USB drive, using the uas > driver. So, not a parted bug, and I've got a new avenue to read up on.
Interesting, but yes, parted is simply respecting the fubar optimal IO size this drive is reporting, which appears to be one sector less than 32 mb. Normal drives have an optimal IO size of 32 kb.
