Re: LA power outage?
It's also interesting to note that, at least by some estimates, the brief power outage in L.A. yesterday took down more networks than Hurrucane Katrina: http://www.techweb.com/showArticle.jhtml?articleID=170702966 Of course, So. California is pretty "network-dense", but what does that say about the level of seriousness that network operators place on their "uptime"? - ferg -- Steve Sobol <sjsobol@JustThe.net> wrote: Valdis.Kletnieks@vt.edu wrote:
On Mon, 12 Sep 2005 21:21:59 -0000, "Reeves, Rob" said:
We've been told by our field tech in LA that One Wilshire had lost power for a bit, but it is now restored. I don't know the duration of the outage, but our equipment there is on DC and did not go down.
So - who in LA is going to be telling Santa they want a new data-center sized diesel UPS genset for Christmas? ;)
More like, "which manager is telling Santa they want a new, clue-imbued employee for Christmas?" I'm not too close to the story and I don't live in Los Angeles (I live and work 55-65 miles northeast of downtown), but it seems to me that the problem could have been avoided with a little more caution on the part of the person who cut the wires. -- Steve Sobol, Professional Geek 888-480-4638 PGP: 0xE3AE35ED Company website: http://JustThe.net/ Personal blog, resume, portfolio: http://SteveSobol.com/ E: sjsobol@JustThe.net Snail: 22674 Motnocab Road, Apple Valley, CA 92307 -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg@netzero.net or fergdawg@sbcglobal.net ferg's tech blog: http://fergdawg.blogspot.com/
On Wed, 14 Sep 2005, Fergie (Paul Ferguson) wrote:
It's also interesting to note that, at least by some estimates, the brief power outage in L.A. yesterday took down more networks than Hurrucane Katrina:
http://www.techweb.com/showArticle.jhtml?articleID=170702966
Of course, So. California is pretty "network-dense", but what does that say about the level of seriousness that network operators place on their "uptime"?
I think there is a difference as to network going down for 3 hours and network going down for 3 months... BTW - care to speculate what will happen if cat5 hurricane hits LA? :) Or maybe we should be thinking of 8+ earthquake .... -- William Leibzon Elan Networks william@elan.net
BTW - care to speculate what will happen if cat5 hurricane hits LA? :) Or maybe we should be thinking of 8+ earthquake ....
-- William Leibzon
threat models for huricanes are different that earthquakes. (or is that one of those "disaster+geography" equations?) --bill
At 02:08 AM 14-09-05 +0000, bmanning@vacation.karoshi.com wrote: And reported Oct 2004: <http://www3.nationalgeographic.com/ngm/0410/feature5/?fs=www7.nationalgeographic.com> -Hank
threat models for huricanes are different that earthquakes. (or is that one of those "disaster+geography" equations?)
--bill
threat models for huricanes are different that earthquakes. (or is that one of those "disaster+geography" equations?)
For one thing, if you use natural-gas powered gensets, you are virtually guaranteed to go off-line after an earthquake. For another, after an earthquake you will have to be prepared to run without utilities for many weeks unlike most hurricanes. New Orleans is not an exception since the hurricane is not what caused the flooding. Another difference is that underground cabling is protected from hurrican damage but is not protected from earthquake damage. I wonder if there are any resources that cover planning for different disaster types. It is pretty clear that telecom companies need to do their own planning, not rely on government agencies. --Michael Dillon
folx, On Wed, Sep 14, 2005 at 01:28:09AM +0000, Fergie (Paul Ferguson) wrote:
It's also interesting to note that, at least by some estimates, the brief power outage in L.A. yesterday took down more networks than Hurrucane Katrina:
http://www.techweb.com/showArticle.jhtml?articleID=170702966
fyi, yes, during the power outages in Los Angeles, at their peak, there were 301 outages (highly localised partitionings with the Internet on one side and the rest of the world on the other :-), according to our peerset at renesys. other views may vary, but probably not by much. [insert aimless debate about the meaning of 'outage' here.] that's a significant, and visible outage, but it's not outrageous. tranmission to and through the region doesn't appear to have blipped at all, as the majority of power redundancy worked.
Of course, So. California is pretty "network-dense", but what does that say about the level of seriousness that network operators place on their "uptime"?
i don't know. a *big* chunk of the visible failures were caused by a very small number of facilities with supposedly redundant power where generators and UPSes failed. people who are in those faciliites are, no doubt, working with building management to obtain RFOs, request SLA credits, and consider breaking leases in the extreme cases. i wish the affected parties luck with those efforts. most stuff just stayed up. t. -- _____________________________________________________________________ todd underwood director of operations & security renesys - interdomain intelligence todd@renesys.com www.renesys.com
participants (6)
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bmanning＠vacation.karoshi.com -
Fergie (Paul Ferguson) -
Hank Nussbacher -
Michael.Dillon＠btradianz.com -
Todd Underwood -
william(at)elan.net