Hi,
have been using disk less machines extensively, and just recently experienced a
problem connected to the dhcp lease time.
Initial contact is over dhcp (tied to mac address), but once the machines boot
over the nfs exported root file system static ip is used (with the same address
as initia
I’ve done 35KW racks using Motivair rear door heat exchangers. Designed by Cray
for Duke University. 4x 50 amp PDUs.
> On Oct 21, 2019, at 11:50 AM, Michael Di Domenico
> wrote:
>
> Has anyone on the list built 40kw racks? I'm particularly interested
> in what parts you used, rack, pdu, rea
I've done >32kW immersion tanks... which is equivalent to 40kW in air :)
Go immersion, drop 22% of your energy costs just in fans...
On Mon, Oct 21, 2019 at 11:50 PM Michael Di Domenico
wrote:
> Has anyone on the list built 40kw racks? I'm particularly interested
> in what parts you used, rack
Joe,
DDC is the ScaleMatrix rack. ScaleMatrix is the colo/dc services unit while
DDC sells the racks, chillers, etc.
—Jeff
On Mon, Oct 21, 2019 at 12:02 Joe Landman wrote:
> FWIW, have a look at scalematrix rack enclosures. I saw them last week.
> Can get to 50kW as far as I understand.
>
> D
FWIW, have a look at scalematrix rack enclosures. I saw them last week.
Can get to 50kW as far as I understand.
Disclosure: I met with them last week as part of the day job. No financial
relationship with them. Just interesting tech.
On October 21, 2019 11:30:16 AM Michael Di Domenico
w
On Mon, Oct 21, 2019 at 2:35 PM Jeff Johnson
wrote:
>
> Sadly, nothing is free and the reality of power consumption and heat can't be
> dodged. At least these racks can be placed in any room, even a parking
> garage. They just need power and water, and hopefully not together. ;-)
no doubt. i'm
Sadly, nothing is free and the reality of power consumption and heat can't
be dodged. At least these racks can be placed in any room, even a parking
garage. They just need power and water, and hopefully not together. ;-)
Their racks are solid, quite impressive. They had a booth at SC last year
and
On Mon, Oct 21, 2019 at 2:16 PM Jeff Johnson
wrote:
>
> You should look at DDC’s racks. Self contained up to 52KW.
> https://ddcontrol.com/s-series/dynamic-density-control/
very interesting, but they look big. i'm not sure we have the space for those
_
You should look at DDC’s racks. Self contained up to 52KW.
https://ddcontrol.com/s-series/dynamic-density-control/
On Mon, Oct 21, 2019 at 10:37 Michael Di Domenico
wrote:
> On Mon, Oct 21, 2019 at 1:30 PM John wrote:
> >
> > Lenovo claims to be able to do up to 40kw racks with their Neptune
On Mon, Oct 21, 2019 at 1:30 PM John wrote:
>
> Lenovo claims to be able to do up to 40kw racks with their Neptune cooling
> system.
> https://www.lenovo.com/us/en/data-center/Lenovo-Neptune/p/neptune
thanks. my understanding is lenovo uses the coolcentric rear doors.
if that's still true, that
On Mon, Oct 21, 2019 at 1:18 PM Prentice Bisbal via Beowulf
wrote:
>
> I've never gone up to 40 KW exactly, but I've configured racks with dual
> PDUs that took 3-phase, 60 AMP service and used IEC 60309 connectors. In
> this arrangement, each PDU can deliver 17.4 KW (might be KVA, actually),
> fo
Lenovo claims to be able to do up to 40kw racks with their Neptune cooling
system.
https://www.lenovo.com/us/en/data-center/Lenovo-Neptune/p/neptune
On Mon, Oct 21, 2019 at 9:50 AM Michael Di Domenico
wrote:
> Has anyone on the list built 40kw racks? I'm particularly interested
> in what parts
I've never gone up to 40 KW exactly, but I've configured racks with dual
PDUs that took 3-phase, 60 AMP service and used IEC 60309 connectors. In
this arrangement, each PDU can deliver 17.4 KW (might be KVA, actually),
for just about 35 KW in a single rack. I used APC PDUs, but I can't
remembe
Has anyone on the list built 40kw racks? I'm particularly interested
in what parts you used, rack, pdu, rear door hx, etc.
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