On 12/28/05, Yeechang Lee <[EMAIL PROTECTED]> wrote: > Buechler, Mark R <[EMAIL PROTECTED]> says: > > My recordings directory is a raid5 set which isn't the fastest in the world > > [...] > > > Another thing I'm considering is HD. If I attempt to vew HD content from my > > DVB card while streaming it to the raid5 array it can't really handle it too > > well - whereas with a separate live tv buffer it wasn't a problem. > > I'm going to blatantly hijack this thread to record for posterity > that, at least with my setup (streaming HDTV recordings to a software > RAID 5+LVM2 array over Gigabit Ethernet with Fedora Core and the > ATrpms version of MythTV 18.1), Samba 3 is rock solid while NFS 3 is > pretty guaranteed to generate near-endless IOBOUND error messages in > mythbackend.log. More detail when I have the time and inclination to > write up my experiences, but I hope this helps others in my situation > in the meanwhile; a month of IOBOUND error messages despite endless > tuning attempts. > > -- > Yeechang Lee <[EMAIL PROTECTED]> | +1 650 776 7763 | San Francisco CA US > >
Since you brought it up... Is gigabit necessary? I have 2 Myth systems connected via 100mbit using CIFS/samba with relatively default settings - I searched google I really couldn't find any options that would help aside from the default socket options. One machine is the BE/FE with PVR350+Air2PC and the other a database/FE/RAID5 file server. I don't have any major problems with the SD recordings, although I have seen skips maybe once per 3-4 hours of recorded content. HD recordings regularly have tons of IOBOUND that make shows unwatchable. It seems like the 1080i channels do this more than 720, although I thought 720p and 1080i were effectively the same bandwidth. I tried NFS, but I could never get it to work right and had VERY bad lag problems that would cause the kernel to become more or less unresponsive until I would force an unmount of the share. I didn't think that recording only 1HD/1SD stream could have problems with 100mbit full duplex, but I'm at a loss as to what other settings I should be looking at. I'm hoping there are some buffer settings with the new HD recorder code in SVN [that patch made some shows watchable] but I'm not sure where to look for that, or if that would even help me. _______________________________________________ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users