<div class="gmail_quote">On Thu, Nov 17, 2011 at 12:54 PM, Mark Lord <span dir="ltr"><<a href="mailto:mythtv@rtr.ca">mythtv@rtr.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
On 11-11-17 12:48 AM, Tyler T wrote:<br>
> In order to improve WAF I'm going to be adding a second ATSC (OTA)<br>
> tuner to my Myth system. Right now, I've got my OS, DB, and recordings<br>
> all on a 2.5" USB hard drive and I'm going to go ahead and assume that<br>
> watching one, and recording two, HD streams all at once is going to<br>
> cause issues. So:<br>
><br>
> Is any random SD card going to have write performance fast enough to<br>
> host Myth's seektables, or should I go shopping for one with<br>
> "upgraded" write performance? In a non-scientific test, I seem to get<br>
> about 5MB/s write speed on an old 1GB SD card I already have. That may<br>
> sound slow but really, during a recording Myth isn't writing megs to<br>
> the DB (just lots and lots of tiny writes). I don't care if<br>
> mythfilldatabase or reschedules are slow.<br>
<br>
<br>
Mmm.. good questions. I was wondering about this too,<br>
and it's easy enough to experiment with.<br>
<br>
I've got a "Class 10" SD card to try it with,<br>
so perhaps I'll just give it a whirl and see what happens.<br>
<br>
If the DB works well enough on the SDcard,<br>
then why not the entire root filesystem there as well?<br>
<br>
Cheers<br>
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</blockquote></div><br>I ran the entire OS and DB for a little while off of a fast thumb drive, with my media on 2TB green drive. I had no problems at the time, but it was a short test for a month or two. I only switched off because I was having other problems, that ended up not having anything to do with the thumb drive.<br>
<br>-Tom<br>