[mythtv-users] One disc drive seems fine

[Simon Hobson]

Paul Gardiner wrote:
>On 23/12/2011 14:51, Richard Morton wrote:
>>  and then the scheduler runs due to a new recording rule or more
>>  scheduling data and the DB steals all the harddisc the cache overflows
>>  and you lose recordings...
>
>Makes a lot of sense, but I don't see it happening so far. I'll keep
>an eye on it and report back after more time.

I used to see it on my old system - though that was admittedly 
hampered by being a virtual machine on a not overly powerful host. I 
would regularly see corruption to recordings that would last only for 
the first minute or two before recovering. I also think it happened 
mid recording if another one started up, but obviously that's harder 
to pin down unless you make careful notes about what the system is 
doing. I put it down to disk activity, and in particular the "stuff" 
that happens each time a recording starts and ends.
If it turned off commflagging (which I did mostly), then it could 
just manage 2 recordings and one playback - but with the corruption I 
mentioned at the beginning of some recordings.

On my current system, dedicated box, two drives, two storage groups 
for recordings, but a raid 1 array on the same disks for OS and DB - 
I've yet to find it's limit.

-- 
Simon Hobson

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