<div dir="ltr"><br><br><div class="gmail_quote"><div dir="ltr">On Fri, May 27, 2016 at 11:08 AM Peter Bennett (cats22) <<a href="mailto:cats22@comcast.net">cats22@comcast.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 05/27/2016 11:43 AM, Tyler T wrote:<br>
>> Raspberry Pi as a master backed in likely to be too underpowered.<br>
> It depends on how "big" of a backend you need. For years I ran a<br>
> master backend on a SheevaPlug, which was a single-core 1.2GHz 512MB<br>
> ARM device -- by all accounts less powerful than an RPi2. For a<br>
> single-tuner HDHR with an OTA antenna and a single remote frontend, it<br>
> worked a treat. I did not do commflagging or transcoding, of course.<br>
><br>
> My BE now is a Cubox-i4, which is the approximate equivalent of an<br>
> Rpi2 save it has 2GB RAM, eSATA, and gigabit Ethernet. It handles a<br>
> dual-tuner HDHR (OTA) and one remote frontend without breaking a<br>
> sweat. Again, I do not commflag or transcode, but I should think that<br>
> an Rpi2 should be able to do those tasks on spare core as long as you<br>
> weren't scheduling a ton of recordings (so it doesn't eternally fall<br>
> behind on background tasks).<br>
><br>
> Obviously, if you have a zillion cable/satellite channels and/or a<br>
> stack of tuners, then an RPi may not be the best choice (unless maybe<br>
> you deploy multiple Pis to share the workload ;) ).<br>
><br>
<br>
I don't know what those devices have for a hard drive and a network<br>
interface.<br>
<br>
As far as RPI is concerned - would you want to use the SD card for your<br>
video storage? If you invest in a large SD card it will likely cost more<br>
than the RPI. Would the SD card be fast enough or large enough?<br>
<br>
You can attach a USB hard drive. Now you have the hard drive and network<br>
all going through the single 480 mb/s USB pipe. This has to be shared<br>
between frontend, tuner, and all disk I/O. Will this work?<br>
<br>
The other problem I see is the 1 GB memory. Is this enough to run mysql<br>
and the backend?<br>
<br>
Maybe it will work. I had thought of trying it but I did not get around<br>
to it yet.<br>
<br>
Peter<br>
<br>
<br><br></blockquote><div> </div><div><br></div><div>I've run the master backend on a RPI2 for awhile ( HDHR Prime, network storage ). It worked, OK, but it was definitely sub-optimal (recording screen took a long time to come up, slow browsing). I would not do it again until the RPI has more RAM.</div><div><br></div><div>This was before I moved the backend to a VM and am perfectly fine now.</div></div></div><div dir="ltr">-- <br></div><div data-smartmail="gmail_signature"><div dir="ltr">Thomas Mashos</div></div>