[mythtv-users] What is best filesystem for recordings?

[Andre Newman]

On 1 Jul 2015, at 07:04, Mike Holden <mikeholden99+mythtv at gmail.com> wrote:

> What about the current batch of "surveilance" HDDs? They sound like a similar use-case to MythTV program recording.
> 
> Anyone tried them, or have any opinions on them? Or is it just a marketing gimmick to add a few dollars on to the price of a regular drive?
> 
> E.g. http://www.mwave.com.au/product/seagate-st4000vx000-4tb-surveillance-hdd-35-sata3-surveillance-hard-drive-ab58829

I have one of these, this is Seagate’s version of the WD AV-GP, I think the newer WD’s are rebranded as WD Purple.

These are exactly the kind of drive I was advocating a few mails back, Surveillance, Cinema, AV, whatever it’s called.

Supposedly one of the optimisations (in the WD at least) is that during a bad read a desktop drive will go back and retry multiple times to try to get a good read, in the process holding up any further reads. The AV drive will carry on and deliver the read with a few errors, the idea is that as the data is video the odd bad bit here and there is masked by the video codec and holding up the read for a one or two bit error is more detrimental than the errors would be.

I think it’s important to not use these drives for OS or other regular data!

Andre


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