[mythtv-users] 3TB...poof

Craig Pratt craig at zpratts.net
Mon Mar 18 06:53:50 UTC 2019


Every drive failure I've had has been heat-related. And a constant-use 
drive can generate lots of heat. I went through 3 disks in my Myth box 
until I figured out that the cabinet I had the PC in wasn't ventilating 
enough (and hddtemp was showing the drive was hot - over 40C). They all 
failed in ways similar to what you're describing. It required a lot of 
labor to get the recordings off the disks when they started to fail - as 
they would work for a while and then die.

Since replacing the glass door with a mesh cloth door, I've had one 2TB 
drive in there for 6 years now without issue - running 30-35C. It was 
the same make and manufacture as the 2 that died before it. Temperature 
was clearly the cause.

And I can't even tell you how many external drives I've seen fail (some 
of my own, others of friend's). Not sure if it's the heat/poor 
ventilation, bad power supplies, or what. But they're the worst.

I'd recommend finding some kind of enclosure that has good ventilation. 
I don't think most as designed to support drives with near-constant use. 
I can't speak to use of a NAS since I haven't used one first-hand. But 
as others have mentioned, RAID-0 would be a good way to go if you can 
afford the disks...

cp

On 3/17/19 10:21 AM, Craig Treleaven wrote:
> So, yet again, the drive with all my recordings is unreadable.  This has happened to me in September 2015, August 2013 and at least one time before that although I’m not sure of the date.  And again this past Tuesday night.  I know the dates because in 2013 I started labelling drives and enclosures with the date purchased and I purchased these items specifically because of these problems.
>
> I’m running Myth on Mac so virtually none of you care.  However, if there is someone out there on OS X that has experienced this and actually KNOWS a solution, I’d love to hear it.  I’ve tried a number of things over the last several days with success.  Various versions of Apple’s Disk Utility.  Swapping the drive into a couple of known-good enclosures.  Tried TestDisk.   The closest I got was that Disk Utility would mount the volume even though it reported it as damaged.  But CarbonCopyCloner was never able to copy more than 150MB off it.
>
> Craig
>
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