On Thu, Oct 30, 2014 at 9:21 PM, John R Pierce <pierce@xxxxxxxxxxxx> wrote:
> On 10/30/2014 1:07 AM, Cliff Pratt wrote:
>
>> I used to work with IBM mainframes back when the dinosaurs were
>> hatchlings.
>> At one place I worked the machine was powered off on Friday at 5pm and
>> powered up at 7am on Monday! Can you imagine that these days?
>>
>> We soon went to 24x7, but the reason was not because the users wanted it.
>> It was because the engineers and systems programmers wanted time with no
>> users.
>>
>
> main reason I remember for keeping stuff running was, it was more reliable
> if the temperature was relatively constant... temperature flucations led
> to more hardware failures than any other source input variable.
>
> Yes, that too. We had quite a few cases of machine mondayitis.
Cheers,
Cliff
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