Easy LVM + Raid

15, Jul, 2009

Needed to put my LVM + Raid notes somewhere, why not here?

We’ll start with 5 Hard drives.
<span style=”font-family: monospace”>/dev/sda$ partitioned, formated, and mounted on /</span><p></p>
Partition the rest as linux raid auto detect
<span style=”font-family: monospace”>/dev/sdb$
/dev/sdc$
/dev/sdd$
/dev/sde$</span><p></p>
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Just an mpeg2enc script

6, Jan, 2009

I’ve never had 100% compatibility using ffmpeg to convert our files to mpeg2. From years of past dvd authoring I’ve amassed quite a few different STBs to test on. They run the gammit from utterly cheap (Apex), commidity (Philips) and higher-end (Panasonic). Nothing is high-end - can’t afford it. Just your basic $30 Walmart special, to pretty good Best Buy $200 model.

ffmpeg authored streams always seem to produce some oditity on a couple of players. Seems to be incorrect GOPs or VBV buffer problems- you get a funky speed up then slow down problem, or not adhering to specified bitrates. I’ve had ffmpeg undershoot the bitrate, which really is not an issue. But when it overshoots, this is a problem. You’ll either run out of space, or the stream will excede the max bitrate according to spec.
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