Re: Temp at Level 3 data centers

On 10/13/2017 2:42 PM, Naslund, Steve wrote: Funny how NANOG posts seem to precede actual attention from vendors isn't it. Squeaky wheel, grease. Same reason why it takes me berating companies on Twitter publicly before things actually get done. *Stares directly at Verizon for a previous

RE: Temp at Level 3 data centers

Funny how NANOG posts seem to precede actual attention from vendors isn't it. Steven Naslund Chicago IL -Original Message- From: NANOG [mailto:nanog-boun...@nanog.org] On Behalf Of David Hubbard Sent: Friday, October 13, 2017 3:38 PM To: nanog@nanog.org Subject: Re: Temp at Level 3 data

Re: Temp at Level 3 data centers

with the situation, so hopefully things are headed in the right direction now. David From: Martin Hannigan <hanni...@gmail.com> Date: Friday, October 13, 2017 at 4:05 PM To: David Hubbard <dhubb...@dino.hostasaurus.com> Cc: "nanog@nanog.org" <nanog@nanog.org> Subject: Re:

Re: Temp at Level 3 data centers

On 2017-10-13 14:10, Roy wrote: The IBM 308x and 309x series mainframes were water cooled. The bank I worked for had just installed one. A big change were noise levels, the thing was really quiet. But servicing now required a plumber too. (there was a separate cabinet for the water pumps as

Re: Temp at Level 3 data centers

Hi David, 80F seems ~reasonable to me. What is the inlet temp, the temperature air is going in at? What kind of gear are operating? Routers and switches? Servers? Disk? Is the cabinet top fan working? Most modern equipment should be able to handle those temps. As another poster noted, are these

Re: Temp at Level 3 data centers

On 2017-10-13 14:10, Roy wrote: > > > The IBM 308x and 309x series mainframes were water cooled. The bank I worked for had just installed one. A big change were noise levels, the thing was really quiet. But servicing now required a plumber too. (there was a separate cabinet for the water

Re: Temp at Level 3 data centers

The IBM 308x and 309x series mainframes were water cooled.  They did have Thermal Conduction Modules which had a helium-filled metal cap, which contains one piston per chip; the piston presses against the back of each chip to provide a heat conduction path from the chip to the cap.  The cap

Re: Temp at Level 3 data centers

Once upon a time, b...@theworld.com said: > Also, the IBM 3090 at least, was cooled via helium-filled pipes kind > of like today's liquid cooled systems. It was full of plumbing. If you > opened it up some chips were right on copper junction boxes (maybe > they were just

Re: Temp at Level 3 data centers

On October 12, 2017 at 19:56 jfmezei_na...@vaxination.ca (Jean-Francois Mezei) wrote: > back in the arly 1990s, Tandem had a computer called "Cyclone". (these > were mission critical, fault tolerant machines). ok old fart stories...tho maybe current. IBM's big mainframes would repeat

Re: Temp at Level 3 data centers

back in the arly 1990s, Tandem had a computer called "Cyclone". (these were mission critical, fault tolerant machines). The reason for "Cyclone" name was that the cabinets had huge fan capacity, and that was to deal with air conditioning failure by increasing the air flow over the electronics to

Re: Temp at Level 3 data centers

If you are using hot/cold aisles and don't fill the rack, don't forget you have to put in blank panels. -- Keith Stokes > On Oct 12, 2017, at 5:45 PM, William Herrin wrote: > > On Wed, Oct 11, 2017 at 8:31 AM, David Hubbard < > dhubb...@dino.hostasaurus.com> wrote: > >>

Re: Temp at Level 3 data centers

On Wed, Oct 11, 2017 at 8:31 AM, David Hubbard < dhubb...@dino.hostasaurus.com> wrote: > Curious if anyone on here colo’s equipment at a Level 3 facility and has > found the temperature unacceptably warm? I’m having that experience > currently, where ambient temp is in the 80’s, but they tell me

Re: Temp at Level 3 data centers

On Thu, Oct 12, 2017 at 3:39 AM, Naslund, Steve wrote: > If the ambient temperature is higher is means the temperatures throughout > the device would be higher and the temp at those points is what really > matters. I would also be concerned because if they lose one of the

Re: Temp at Level 3 data centers

I'm a few years removed from having direct involvement in our DCs now, so I don't have an example on hand to look at. Is cooling (and in-cabinet temperature) not a part of the SLA? If it is, then there shouldn't be a question of the DC staff brushing off complaints about the temperature–either

Re: Temp at Level 3 data centers

the facility manager/personnel very useful. They gave staight up answers and have done what they could to assist. Original message From: Chuck Anderson <c...@wpi.edu> Date: 10/11/17 22:13 (GMT-05:00) To: nanog@nanog.org Subject: Re: Temp at Level 3 data centers Install

Re: Temp at Level 3 data centers

Install an air conditioner in your rack. On Wed, Oct 11, 2017 at 02:39:19PM -0500, Andrew Latham wrote: > David > > The issue has several components and is vendor agnostic. > > Set Point: The systems are specifically set at a temperature > Capacity Ability: The systems can maintain a

Re: Temp at Level 3 data centers

Den 11. okt. 2017 22.47 skrev "William Herrin" : On Wed, Oct 11, 2017 at 4:32 PM, Jörg Kost wrote: > Do you guys still at least have biometric access control devices at your > Level3 dc? They even removed this things at our site, because there is no > budget

Re: Temp at Level 3 data centers

On Wed, Oct 11, 2017 at 4:32 PM, Jörg Kost wrote: > Do you guys still at least have biometric access control devices at your > Level3 dc? They even removed this things at our site, because there is no > budget for a successor for the failing unit. And to be consistent, they >

Re: Temp at Level 3 data centers

Hi there, been there, done that, rocky way ahead. In Europe the standard temperature Level3 SLA is 26C. The measurement is done on the cool aisle, at a distance of 45 cm to the equipment and a height of 100 cm. You can use a Testo 625 handheld for measurements, that is also handled by Level3

Re: Temp at Level 3 data centers

On 10/11/17 9:42 AM, Sam Kretchmer wrote: with a former employer we had a suite at the L3 facility on Canal in Chicago. They had this exact issue for the entire time we had the suite. They kept blaming a failing HVAC unit on our floor, but it went on for years no matter who we complained to, or

Re: Temp at Level 3 data centers

David The issue has several components and is vendor agnostic. Set Point: The systems are specifically set at a temperature Capacity Ability: The systems can maintain a temperature Customer Desire: What you expect from sales promises. Sales Promise: What they might carefully avoid promising. I

Re: Temp at Level 3 data centers

As temp goes up wire resistance increases too, increasing heat, increasing resistance, etc - and I find breakers trip more easily at hotter temps too. /kc On Wed, Oct 11, 2017 at 01:08:33PM -0400, Zachary Winnerman said: >That's a good point, though if you are running your breakers that close

Re: Temp at Level 3 data centers

On 2017-10-11 19:09, Naslund, Steve wrote: > I would also be concerned because if they lose one of the a/c units > what would the ambient temperature rise to? It doesn't matter much if the "normal" temperature in your DC is 10 or 30 degrees Celcius; if the cooling system is barely keeping up

Re: Temp at Level 3 data centers

Also worth noting that temperature tolerances for large scale numbers of 1U servers, Open Compute platform type high density servers, or blade servers is a very different thing than air intake temperatures for more sensitive things like DWDM platforms... There's laser and physics related issues

Re: Temp at Level 3 data centers

My 0.041 BTC: 1) For small facilities, without separate temperature-controlled UPS zones, the optimum temperature for lead-acid batteries may be the lower bound. 77°F is optimal, with significant reduction in battery life even 15°F above that. Given that batteries' internal temperature will

RE: Temp at Level 3 data centers

NANOG [mailto:nanog-boun...@nanog.org] On Behalf Of Zachary Winnerman >Sent: Wednesday, October 11, 2017 11:54 AM >To: nanog@nanog.org >Subject: Re: Temp at Level 3 data centers > >I recall some evidence that 80+F temps can reduce hard drive lifetime, though >it might be outdated as it w

RE: Temp at Level 3 data centers

>Sent: Wednesday, October 11, 2017 11:54 AM >To: nanog@nanog.org >Subject: Re: Temp at Level 3 data centers > >I recall some evidence that 80+F temps can reduce hard drive lifetime, though >it might be outdated as it was from before SSDs were around. I would imagine >that while it

Re: Temp at Level 3 data centers

That's a good point, though if you are running your breakers that close I think you have bigger problems, as a power outage, however unlikely, could cause your equipment to not come back up at all. Software updates that reboot several servers in quick succession could also cause a breaker to trip

Re: Temp at Level 3 data centers

In a message written on Wed, Oct 11, 2017 at 12:54:26PM -0400, Zachary Winnerman wrote: > I recall some evidence that 80+F temps can reduce hard drive lifetime, > though it might be outdated as it was from before SSDs were around. I This is very much a "your infrastructure may vary" situation.

Re: Temp at Level 3 data centers

http://www.datacenterknowledge.com/archives/2008/10/14/google-raise-your-data-center-temperature On Oct 11, 2017 11:56 AM, "Zachary Winnerman" wrote: > I recall some evidence that 80+F temps can reduce hard drive lifetime, > though it might be outdated as it was from

Re: Temp at Level 3 data centers

I recall some evidence that 80+F temps can reduce hard drive lifetime, though it might be outdated as it was from before SSDs were around. I would imagine that while it may not impact the ability for a server to handle load, it may reduce equipment lifetime. It also could be an indication that

Re: Temp at Level 3 data centers

My house isnt built for moving furniture, it's built for living in. I've not moved a bed in or out of the bedroom in 8 years now. But for the 15 minutes I did move a bed, the door and hallway had to accomodate it. Humans have to go into datacenters - often in an emergency. Complicating the

Re: Temp at Level 3 data centers

There are plenty of people who say 80+ is fine for equipment and data centers aren’t built for people. However other things have to be done correctly. Are you sure your equipment is properly oriented for airflow (hot/cold aisles if in use) and has no restrictions? On Oct 11, 2017, at 9:42 AM,

Re: Temp at Level 3 data centers

with a former employer we had a suite at the L3 facility on Canal in Chicago. They had this exact issue for the entire time we had the suite. They kept blaming a failing HVAC unit on our floor, but it went on for years no matter who we complained to, or what we said. Good luck. On 10/11/17,

Temp at Level 3 data centers

Curious if anyone on here colo’s equipment at a Level 3 facility and has found the temperature unacceptably warm? I’m having that experience currently, where ambient temp is in the 80’s, but they tell me that’s perfectly fine because vented tiles have been placed in front of all equipment