I've been troubleshooting this particular problem for 3 months now and I am running out of ideas. When attempting to watch movies (ripped to the core system) on my diskless media devices, playback stutters periodically. Considering that my intention is to move my entire DVD Library to this core system, the performance is absolutely critical. Being an IT Infrastructure professional, I took a pretty hard core approach to correcting this issue. (I like buying big toys.)
First, I thought maybe it was a disk access speed issue, so I dedicated four 250 GB drives in a hardware raid 10 configuration for the Linux MCE OS. I then created a separate (hardware) raid 5 LUN for my media. This resulted in no improvement on the media directors during playback; however they do seem to boot up quicker.
Next I replaced my Linksys Gigabit switch with a Cisco Catalyst 3550 (Layer 3) Gigabit Switch and a few cat 6 certified patch cables to plug the systems directly into the switch. I did see notable improvement after this change. Movie play back still stutters on occasion, but it is far less severe.
I have a core set up and running like a scalded dog, the config is below:
Motherboard: MSI Platinum AM2
RAID controller: 3Ware PCI-Express x16 SATA II Controller Card RAID
Processor: AMD Phenom 9950 2.6 GHz Quad Core
Memory: Crucial Ballistix 4gig memory
Case: Norco RPC-4020 4U
Power Supply: Antec TruePower Quattro 1000W
Video Card: MSI Video Card Nvidia Chipset
NIC: Intel Gigabit Ethernet
System: Western Digital Caviar 250GB X 4 Raid 10 configuration
Data: Western Digital Caviar 1TB X 8 Raid 5 configuration
Here are my current Media Directors:
-1 MSI Media Live x64
-3 Generic PC x86(Testing)
What I think may help is increasing the MTU size for the media network. I can do that easily enough on the switch, however, what would I need to do on the core /media directors?
Would this even help me?
Is there something else that I may be missing that could cause my video playback preformance issues?
I love you guys.