On 4/25/18 5:13 AM, Nicolas D wrote: > Hello, > > On Tue, Apr 24, 2018 at 07:53:53AM -0500, Bryant G. Ly wrote: >> On 4/24/18 7:38 AM, Hannes Reinecke wrote: >> >>> 'pscsi' is the SCSI pass-through, so it'll be presenting the >>> values from the underlying device; I doubt you can change that. > I have tried to tweak /sys/block/sr0/queue/max_sectors_kb but with no > luck (sr0 is the backend exported) Can you tell me if targetcli use this > value? And if yes, when is it taken into account? (on backend creation? > when the initiator connects? sometime else?) > >>> What you could try is to mount the DVD, and export the mountpoint >>> via the file backend; that way you should be able to tweak the >>> parameters. > I forgot to say that the goal is to play dvd/bd video disks and that I > need the pass-through for all the special commands needed to authenticate > the drive etc. So using the file backend does not seem to be an option. > >> Adding to what Hannes is saying, if you need true dvd/cd emulation you can >> use file optical media backstore via user:fbo from tcmu-runner. > Does the user:fbo handle the necessary special command for video dvd/bd? > > Yes, user:fbo was written specifically to emulate optical drives, so it should handle all the commands you need for dvd. Bryant -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
