[mythtv-users] USB Hard Drive Lifespans and power usage question
Alex Butcher
mythlist at assursys.co.uk
Mon Aug 4 23:31:25 UTC 2008
On Mon, 4 Aug 2008, David Rees wrote:
> IMO, anything over 60* is too hot for drives. Many will generate SMART
> errors at those temps. I prefer to keep them in the 40*C range myself
> when possible, and temps in the mid 50*C ranges are marginal as if the
> ambient temps go up, so will the hard drive temps.
I concur:
Desktop with two Seagate ST3200822A drives:
# smartctl -a /dev/sda | grep -i temp
194 Temperature_Celsius 0x0022 039 050 000 Old_age Always
- 39
# smartctl -a /dev/sdb | grep -i temp
194 Temperature_Celsius 0x0022 035 043 000 Old_age Always
- 35
MythTV box with a ST3500630A as sda and a ST3300622A as sdb:
# smartctl -a /dev/sda | grep -i temp
190 Airflow_Temperature_Cel 0x0022 064 053 045 Old_age Always
- 36 (Lifetime Min/Max 30/44)
194 Temperature_Celsius 0x0022 036 047 000 Old_age Always
- 36 (0 24 0 0)
# smartctl -a /dev/sdb | grep -i temp
190 Airflow_Temperature_Cel 0x0022 064 056 045 Old_age Always
- 36 (Lifetime Min/Max 30/43)
194 Temperature_Celsius 0x0022 036 044 000 Old_age Always
- 36 (0 19 0 0)
Admittedly, this is a bit easier to achieve in a domestic environment in the
UK (even without AC) because of our low-ish average ambient temperatures!
> -Dave
Best Regards,
Alex.
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