Hi there,
I've got a RBPi running OpenElec and all has gone well with it and my old desktop running Ubuntu Server + NFS shares configured through Webmin.
I decided to get a refurbished N40L on the cheap. I loaded up unraid but whenever I played anything from NFS shares I had stuttering issues that progressively worsened through the movie. The audio would sound strange and it became impossible to watch. I then tried OpenMediaVault (installed to hard drive). Still the same.
To me this sounds like my OpenELEC setup is perfect and my N40L is to blame.
What I've tried:
-Copy movie to old P4 server and try it. Ran perfect.
-Tried other movies. Same general issues. Didn't try SD or lower bitrate content!
-Maybe a RAID issue? I installed OpenMediaVault with no Raid + NFS. Still has the same problems.
-NFS? Trying SMB didn't fix it.
N40L has two Seagate Barracuda 2 TB HDD SATA 6 Gb/s NCQ 64MB Cache 3.5-Inch Internal Bare Drive ST2000DM001. Movies are stored on one of these. The other is unused right now. OS loaded on the separate 250 gb drive also installed.
I am concerned it might be the network card of the n40l, as I've heard it's not very good to begin with. Or perhaps its the hard drive the media is on. Either way, there's something about this N40L that's making my Pi stutter. How can I definitely diagnose the problem?
I tried hdparm on the n40L drive hosting the media:
Zitat
root@openmediavault:~# hdparm -tT /dev/sdb
/dev/sdb:
Timing cached reads: 2276 MB in 2.00 seconds = 1138.40 MB/sec
Timing buffered disk reads: 554 MB in 3.01 seconds = 184.25 MB/sec
Also tried iperf between my old box and my n40L, with the N40L acting as the server:
Zitat
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.1.251, TCP port 5001
TCP window size: 75.5 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.1.250 port 46650 connected with 192.168.1.251 port 5001
[ 5] local 192.168.1.250 port 5001 connected with 192.168.1.251 port 51779
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 111 MBytes 92.8 Mbits/sec
[ 5] 0.0-10.1 sec 35.7 MBytes 29.6 Mbits/sec
Alles anzeigen
Although this issue is not limited to any one specific file, here is the media information of a specific file that I experience this issue with: