Hi Ramin, On Thu, 2014-02-13 at 23:47 -0800, Ramin Mahmoodi wrote: > Hi guys, > > I'm new to linux, so hopefully this is the right place to post. I got > Ubunut 13.10 Server and installed targetcli on a VirtualBox machine. I > have the network Bridged to the Ethernet port connected on my local > router. What I have setup is this > > /blockstore/pscsi /dev/sr1 -> My blu ray drive > lun0 -> /dev/sr1 > demo mode is on > > I can connect to it from my Windows 7 machine (built in iSCSI > Initiator) and it will mount the drive as F: and will even load the > ASUS blu ray drive software and I can see and view the Blu ray media > contents. > > The problem I'm having is that it is incredibly slow. I know that with > ISCSI HD and the PS3 you were able to get media playback on a wired > network, but I can't get that working at all. Is there something I > need to be doing differently? > So streaming video playback from Blu-Ray media requires ~5 MB/sec to ~7 MB/sec of sustained bandwidth depending on A/V codec + HD player pre-buffering settings. Based on your above setup, the bottleneck would most likely be related to the Virtualbox HBA emulation + BDROM device passthrough into Ubuntu guest not being able to sustain the required bandwidth necessary for smooth playback. One quick test you can try is to 'dd if=/dev/scd0 of=/dev/null bs=2048' within the Ubuntu guest, and then CTRL-C after ~60 seconds. This will give an idea of Linux local streaming bandwidth into the Virtualbox guest. Also, what host OS is Virtualbox running on..? --nab -- 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
