On Sun, Mar 03, 2013 at 07:54:07PM +0100, Robert wrote: > On Sun, 3 Mar 2013 12:35:29 -0500 > Kenneth R Westerback <kwesterb...@rogers.com> wrote: > > On Sun, Mar 03, 2013 at 11:15:54AM -0600, Brandon Tanner wrote: > > > Joel, > > > > > > Would the fact that my two 3TB drives (ST3000DM001) use 4k sectors be the > > > reason I wasn't getting it working then? > > > > Both of the drives in the dmesg you posted report 512-byte sectors. > > > > .... Ken > > The Seagate datasheet [1] claims that this drive (ST3000DM001) uses 4k > sectors. > > Otherwise can I confirm that a Western Digital WD30EFRX 3TB drive with 512b > sectors works fine with crypto softraid. > > kind regards, > Robert > > [1] > http://www.seagate.com/files/staticfiles/docs/pdf/datasheet/disc/barracuda-desktop-hdd-ds-1770-1-1212us.pdf >
Many drives use 4K internally but still report to the outside world that they use 512 byte sectors. Handling the translation/packing/unpacking themselves. OpenBSD just reports (and trusts) what the drive reports in response to READ_CAPACITY/READ_CAPACITY_16. .... Ken
