Stalwart Down

If you had trouble getting to The Stalwart yesterday, it's because I use Typepad to host the site, and Typepad happens to be a client of the big San Francisco data center that crashed yesterday, bringing down half of the internet.  So far, there doesn't seem to be a single definitive answer to what happened, although it almost certainly had something to do with the power outages in San Francisco yesterday.  I found this report from Valleywag to be interesting:

365 Main, like all facilities built by AboveNet back in the day, doesn't have a battery backup UPS. Instead, they have these things called "CPS," or continuous power systems. What they are is very very large flywheels that sit between electric motors and generators. So the power from PG&E never directly touches 365 Main. PG&E power drives the motors which turn the flywheels which then turn the generators (or alternators, I don't remember the exact details) which in turn power the facility. There are 10 of these on their roof.

It goes on to explain how these CPS systems failed.

Back during the Bubble when I lived in Austin, I had a good friend that worked for Active Power (NASD: ACPW), which developed these flywheel power systems.  Active Power stock briefly got caught up in the alt-energy boom, but it was always a data center play.  At the time, what my friend told me was that data centers were buying up there products, not because of their reliability (although that was important), but because they were smaller than typical power generators, meaning that the data center would have more room for servers.  In other words, demand was so high at the time that any extra square feet that could be devoted to servers meant significantly more money.  Eventually, the market determined that there was too much capacity, and for several years, people fretted that we'd never have enough internet usage to justify all of the infrastructure that was built out during the Bubble.  That conclusion wasn't quite right, since a new wave of startups found plenty of ways to use all of that excess capacity.

Personally, I don't know a whole lot (okay, nothing) about data center design.  But if it's true that many of them are, structurally, legacies of the Bubble, I wonder how many of them have energy systems chiefly designed to maximize square footage as opposed to providing nine-nines power continuity.  Just wondering.

Comments

[VPXL]

Your site has very much liked me.

-------------------------------------
USA DRUG STORE

[VPXL]

Eventually, the market determined that there was too much capacity, and for several years, people fretted that we'd never have enough internet usage to justify all of the infrastructure that was built out during the Bubble. That conclusion wasn't quite right, since a new wave of startups found plenty of ways to use all of that excess capacity.

----------------------------------------
http://www.us-edrugstore.com

[VPXL]

he scarcity of time faced by the people in the modern age has given impetus to the concept of things like online pharmacies.

http://www.us-edrugstore.com

[viagra online]

You can find more

[viagra online]

You can find more

[viagra online]

You can find more

[John davis]

http://thecanadianpharmacy.org"

[Tadalafil]

Good information!! thanks for publish this!!

[Google]

http://search.live.com
If you do not wish to receive similar messages please inform us on it by mail ban.site[dog]gmail.com

[faroldbind]

104 group economic majority

[bradleeagu]

simulate output article annual during

[arlostall]

apple digital slowly research tar organizations gases

[jordannecl]

bush expected region reduced running thermal signed

[eldenfrank]

web scheme debate believed

[shepardrea]

areas functionality treaty times variations space years

[cadenabuck]

differing instead infrared keep exempt direct assumptions

[jeniecelig]

beta rate due sun fourth companies simulation

[coleshadis]

gun million agree figure

[briceedgar]

climate warmest cover 2000 fuel

[brooksmcin]

causes trade provisions doi combined called

[saif]

продвижение сайтов http://seokult.ru/

[buying land miramar puntarenas costa rica]

Hi great article In physics, the universal law of conservation of energy, which is the basis for the first law of thermodynamics states that energy attached to an isolated system remains over time. However, the theory of special relativity establishes an equivalence between mass and energy by which all bodies, by virtue of being formed of matter, contain energy, moreover, may possess additional energy is conceptually divided into several types according to the properties of the system being considered. For example, the kinetic energy is quantified by the motion of matter, chemical energy as the chemical composition, properties and potential energy as the state of deformation or the position of matter in relation to the forces acting on it and the thermal energy as the thermodynamic state.

[viagra online]

Hi i think -The flywheel approach typically provides up to 10 times the backup time provided by the energy storage of CPS systems. For this reason, our packaged solution gives the customer the ability to direct engine and UPS power to the critical load independent of each other should it be required. This level of compartmentalization eliminates single points of failures on the critical bus far more effectively than that of a mechanically coupled system such in a CPS system.

[Ken last]

differing instead infrared keep exempt direct assumptions

[buy zovirax online]

xenical modo de uso xenical venta libre http://xenicalespanol.yolasite.com/>xenical roche mexico xenical informacion xenical precio en farmacia