[Info-vax] Listeners in VMS Basic, was: Re: Integrity iLO Configuration?

[chris]

On 06/28/21 16:50, Dave Froble wrote:
> On 6/28/2021 10:08 AM, Hans Bachner wrote:
>> Phillip Helbig (undress to reply) schrieb am 26.06.2021 um 08:39:
>>> In article <sb59h3$4tn$1 at dont-email.me>, Dave Froble
>>> <davef at tsoft-inc.com> writes:
>>>
>>>>> BTW, David, just how noisy _is_ your new Itanium ? :-)
>>>>
>>>> Haven't seen it yet. Will report when it gets here.
>>>
>>> Itanium should be seen but not heard. :-)
>>
>> You mean it should be switched off?
>>
>> :-)
>> Hans.
>
> Ok, to address this question. First, I'll say I was a bit surprised.
> There are fans stacked in front of other fans. As if one isn't enough.

It's quite common in 1 or 2U servers and has been for years now.
There are engineering limits to fan speed and airflow and putting
two back to  back improves airflow and adds redundancy. Usually,
the fans start off at high speed on power up, to verify correct
operation, then slow down as the bios and then os adjusts the
speed to suit current system temperature.

>
> So I pushed the button to activate things, I could have sworn I was at
> the airport listening to an F-15 starting it's engines. Possibly
> including the afterburners.
>
> Yes, it is loud, very loud.
>

vVery, but not so bad once they are mounted in the rack...