In message 
          Adrian  wrote:

>In message , druck 
>writes
>>On 19/06/2019 21:37, Adrian wrote:
>>> In message , Martin Gregorie
>>> writes
>>
>>> It is in an external enclosure powered by a wall wart.
>>>  3.5" disc WD red 3 years old.  Connection is via USB, the disk's
>>>enclosure has an adapter built into it.
>>
>>I'd recommend replacing with a small SSD and a USB to SATA cable. It's
>>a far more power efficient solution in itself, as well as being a lot
>>quicker which will allow the RPi to go back in to a lower power state
>>sooner.
>>
>>---druck
>>
>>
>
>Thanks, something to consider when the disk is up for replacement.

At three years old, it's already reached the end of its life, so the
MTTF specification no longer applies.  It is (or should be!) up for
replacement already.

David

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