<div class="gmail_quote">On Mon, Apr 7, 2008 at 9:59 AM, Peter Abplanalp <<a href="mailto:pta-myth@psaconsultants.com">pta-myth@psaconsultants.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">hi all,<br><br>i've been running myth for about 3 years now and with the advent of .21, specifically storage groups, i'm wondering if it is time to re-architect my setup. i started my myth adventure as many do by buying a capture card and putting it in an existing machine to try it out. i found, as many do, that myth was great and started buying more hardware. the way i did this was by adding fe/be setups with a tuner card each time. what i have now is 3 fe/be setups, each with a tuner card and varying amounts of disk space. specifics:<br>
<br>fe/be 1 (master):<br>* amd x64 3700<br>* pvr 150<br>* /video1: 300g<br>* /video2: 320g<br><br>fe/be 2:<br>* intel p3<br>* pvr 150<br>* /video: 150g<br><br>fe/be 3 (original box):<br>* intel p2<br>* pvr 150<br>* /video: 36g<br>
<br>i also have another box (amd x64 x2 ~300g) on order that i may add to the group. i may be getting an hdhr in the near future. i have some questions on how best to use this hardware. the first question has to do with how the capture cards are set up. is the way they are ok or would i be better off putting all the cards in one box? i have it set up this way so that commercial marking and transcoding can be shared across the machines and also because i added cards at the same time as i added machines and this didn't require messing with existing setups.<br>
<br>my second question has to do with storage. i don't currently use nfs but now with storage groups, i'm wondering whether a setup where each machine shares it's video drive(s) and each machine mounts them all and has a storage group for each would be better (assuming i leave the card setup as is). i could get a situation where each machine is recording and pushing the stream onto the network via nfs. would 4 sd streams saturate my 10/100 network? how many concurrent streams can a 10/100 network support? or perhaps a better question is what is the throughput needed for an sd stream (pvr 150), hd stream (hdhr) and what is the throughput that nfs supports? is this a good idea? how does a future hdhr affect this? can i set up priorities with storage groups such that i could configure a particular fe/be to save to local storage if it could before it sent things out via nfs?<br>
<br>my last question is do you all have any other (presumably better :-) ideas on how i can best use my hardware?</blockquote>
<div> </div>
<div>Personally, if you have the slots, put them all in the master backend. That things has more than enough CPU to chew throught *many* SD commflag jobs. To contrast with my system:</div>
<div> </div>
<div>AMD Athlon XP 2000</div>
<div>PVR-500</div>
<div>AverMedia A180 HD x2</div>
<div> </div>
<div>With this I can record 4 (now 6) shows at a time (2 HD, 2 SD) with 2 commflag jobs running and streaming another HD program to a remote frontend without any issues on a 10/100 network. </div>
<div> </div>
<div>Having everything in one place simplifies adding storage, managing files, etc etc. You'll be glad you did.</div>
<div> </div>
<div>Kevin</div></div>