On 12/9/05, mrwester <[EMAIL PROTECTED]> wrote: > Hi- > My mythtv system has 1xPVR-350, 1xPVR-500 using ivtv 0.4, and a newly added > DViCO FusionHDTV 5 Lite using DVB drivers. 1x200GB seagate+1x300GB seagate > HD LVM with XFS for /video and 1x40GB seagate for FC4 OS. I have DMA > enabled. DVI out via fx5200 at 1280x768. Chaintech nforce2 mobo, AMD2900 > with 1gb ram. All 4 tuners can capture on their own with no problems. I > can capture with all 3 Hauppauge tuners at the same time no problems. > Trying to capture HDTV while capturing with the Hauppuge cards results in > normal analog recordings but the digital recording has dropouts and > scrambled bars across it. I need to double check if capturing digital NTSC > with the DViCO card also has the dropouts when one or more PVR cards are in > use. > > I'm new to the HDTV part of mythtv and looking for feedback to tell me if > what I'm trying to do is realistic or not. And if it is realistic, where > should I look to troubleshoot. Thanks for any insight. > > Mike
I have four HD-3000 cards writing to a 5 disk software RAID5 formatted as XFS. I can record on all four cards simultaneously without any problem. I do *not* use LVM -- which I believe adds some overhead. Software raid5 on a 3GHz Pentium 4 system results in very good disk throughput. As a test, I tried turning OFF hyperthreading on my 3.0GHz P4, and started having problems recording more than two HD programs at a time. Don't know how Athlons perform, but HT is a win for Pentiums. Another datapoint - My raid5 had to rebuild one of the disks. During this rebuild, I could still record one HD stream without a problem, but two resulted in a LOT of corruption, and a lot of messages about it taking a LONG time to get data from the HD tuner card. I noticed that Daniel add a ringbuffer into myth's DVB processing today, so that should help any system which is marginal. Don't know if any of this helps you, but thought it might... John _______________________________________________ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
