Link:
https://dannyman.toldme.com/2007/07/25/365-main-oops-wtf/
Wow! It turns out that Tuesday was a great day to not be working as a SysAdmin in San Francisco:
http://laughingsquid.com/massive-power-outages-hit-san-franciscos-soma-district/
(I like what Yelp have done with their down page.)
The short story is that an underground transformer exploded downtown, and the 365 Main data center failed to automatically start their generators, and had to start them manually, cutting power for nearly an hour for some customers, many of which are smaller, trendier web sites like Craigslist, LiveJournal, Yelp and others. (I have interviewed with half of the companies mentioned in Scott’s post.)
You do not want to lose power across a production-class network. This can cause equipment failure, servers to delay boot because they need to run disk consistency checks, servers to stall boot noting a missing keyboard, disk errors, or whatever. Some services may wedge up because when they started they couldn’t talk to the database . . . in some cases you may have had machines running for a few years, which may have last rebooted three SysAdmins ago. The running state may be subtly different from the boot state, with no documentation . . .
A few years ago I had a chance to rebuild a production network from the ground up, with a decent budget to do everything the right way: redundant network switches, serial consoles, remote power management . . . I remember talking to my manager as to whether we might want a UPS in each rack. We figured that the data center is supposed to keep the power running, or else. Also, if the data center loses power then we lose our network access anyway . . . perhaps the whole point of this post is that data centers do lose power, so a UPS can be worthwhile. If nothing else, it may leave your systems up and ready to go as soon as the network is restored.
Data centers have UPSes too. Huge ones that you may get to walk through on a tour. The purpose of the UPS is to provide battery power between the time utility power fails and on-site generators begin to provide energy. I don’t know enough to comment on this particular case, but I do recall touring a data center in Emeryville, and the guy explained that batteries become less effective over time, and a lot of data centers fail to test their batteries regularly. When wired in series, one bad battery brings down the entire UPS, and so even though you have a generator on-site, the UPS can fail before you manage to transfer to generator power. While this stuff is beyond my expertise, I’m inclined to believe that this is what happened at 365 Main yesterday: a data center should not only test its failover-to-generator procedure on a regular basis, they need to ensure sufficient battery capacity to keep systems running during the time it would reasonably take to switch to generator power.
Update–July 27: Earth2Tech points out that 365 Main uses newer, ecologically-conscientious flywheel technology to maintain current between the switch from utility to generator power, and speculate that the flywheel may have played a part in the power failure. Their writeup is very good, overall.
3 Comments
Link:
https://dannyman.toldme.com/2007/07/24/wordcamp-notes-day1/
On the weekend of July 22 and 23, I and about 400 other folks attended WordCamp 2007 in San Francisco. This is a conference about WordPress blogging software, and blogging itself. I am usually a bit wary of killing my weekend by spending the bulk of it with a bunch of nerds. Especially bloggers. But then, I am a nerd, and this is, I admit, a blog . . . that and registration was merely $25 and covered my food for the weekend. That’s a pretty compelling deal for the unemployed! Added value was found at the open bar on Saturday night at one of my favorite bars: Lucky 13.
Here are notes I compiled during the Saturday presentations. (more…)
2 Comments
Link:
https://dannyman.toldme.com/2007/03/31/a-crap-page-today/
Hello, it’s me again. This Matthew Malooly feller has some interesting web site. He’s a lab-sitter like me, I think. Someday I’ll do like the old site had and have a list of web pages I like. Good, well-written and informative web sites you know, about people that introduce them to their mind, assuming they have one. If they’re dull they mightn’t bother with a web site in the first place. And if you find me dull, well feel free to go elsewhere, I’m not forcing you to read.
Which is one great thing about the web. You read what you want, you see and listen to what you want, and what is nasty you just avoid.
Actually, the dude has a link to my page. I remember now. It’s like we see eye to eye on this web page stuff.
Well, on through other URLs I have sitting in my mail to go through …
Okay, so it’s been a good haul, and I now have a new page up to deal with the fact. Yay!
So after class today I scanned pictures. Gotta start gettin’ goin’ again you know? Lotsa good ones on the way, but you won’t see ’til I’m done settin’ everythang up. That might be awhile. Sorry. Like fine wine … nothing before it’s time you know?
I wish I could think of a few interesting things to say here? Well, let’s see, I did think yesterday to maybe start and this time stick to carrying a little “idea” book around with me … what have we got?
A procmail “mail filter” CGI “control center” — ‘nuf said! Huh? Well, it’ll be a relatively complex CGI ultimately for EnterAct to implement for it’s users. The idea seemed particularly keen last night after I’d read that Tom was gonna audit IMAP so it was secure enough to run on EnterAct’s systems. Means two things to me – one is that there should be coming about a secure implementation of IMAP (for BSD) and two that people might find the most basic features of procmail to be useful: primarily of simple sorting for multiple INBOXes accessible via IMAP and perhaps SPAM filtering. I’m still working out details in my mind while idly wondering what likelihood of and where I’m gonna find the free time to engage in such a project. Yikes!
Story idea — Alright, point-of-view of a tree as it’s being chopped down … you know, what it feels about humans, what it knows about them. The history of how the humans keep going in number, the lumberjack’s perspective. The trick though is that I know nearly nothing of forestry or what it may be like to be a lumberjack.
Rhet 143 — Gotta write this gay “Narrative of Place” … so why not go to the moon eh? Cold, timeless, sterile, no air, dark and desolate. Avec ma solitude … well, dunno, we’ll see but Seshagiri wants a draft for Wednesday. Grrr!
Well, another crap journal entry muddled through. Go back and enjoy Matt’s site, and that of Brian Lee the rat boy! I go do something else now. I’m tired.
Feedback Welcome
Link:
https://dannyman.toldme.com/2006/10/09/muni-stuck/
The subway broke again, so our streetcar is waiting patiently at West Portal. I wish Muni were more robust. They have always done well at providing shuttle buses when things are broken, but I’d rather depend on a system that didn’t need to be so adept with shuttle buses.
“Okay, we moving now,” says the operator . . .
2 Comments
Link:
https://dannyman.toldme.com/2006/09/29/tgif/
Another every-other Friday, another lunch buffet at the titty bar with colleagues and friends. It’s not such a bad life.
3 Comments
Link:
https://dannyman.toldme.com/2006/09/27/stupid-flyer/
As I rushed away from the office this evening, I accepted, for amusement purposes, a flyer some lady was handing out at the subway entrance:
A marketing survey, huh? Sounds pretty straightforward. Am I in the right zipcode? *Flip* (more…)
3 Comments
Link:
https://dannyman.toldme.com/2006/09/27/muni-6-parnassus/
On Sunday I needed to get over to Buena Vista Park from my house, so I walked over to catch the 6, which turns around at 14th Av and Quintara. I walked up Quintara, only to be met by a tiered series of stairways at 15th. Oofda! Huff huff huff I got some nice exercise getting up to this bus stop, and now I know why it stops at 14th Av. Eventually the bus showed up empty and I was the only passenger for a good while as it twisted and turned along a crazy route up and down a lot of really steep hills. Although there were electric wires along most of the streets serving the route, the wires were not everywhere, so my ride was a beat up old diesel bus.
Feedback Welcome
Link:
https://dannyman.toldme.com/2006/09/23/gay-fashion-yay/
Miriam got me giggling:
I have often heard it said that women don’t dress for men but instead dress for women. But I live in San Francisco and so I dress for gay men. Clearly, they’re the only ones who notice and compliment accordingly. . .
A few things I enjoy about walking downtown include commuting by train, the fascinating architecture that changes through the day thanks to lights-and-shadows, and, the innumerable good-looking women hustling on their way too and from their jobs and classes.
Alas, I know little for architecture or fashion, so I wander down the street gazing in uninformed appreciation of the beauty around me. As far as the trains go, I have to admit that I recently read up on the history of the USSLRV, which Muni was plagued with in the 1980s and 1990s before they got the nice Breda trains they run today.
“Ohhh, darling, is that a Breda LRV3 you’re riding? I really like it! You’re running so quietly with a good maintenance record. That is so hot!”
Well, thank goodness for the gay men in this city, keeping the ladies motivated to heights of fashion that make me smile in uninformed appreciation.
1 Comment
Link:
https://dannyman.toldme.com/2006/08/19/consumerist-hedonism/
Given that I recently took a new job at a higher salary, and I am no longer paying a bunch of money for someone else’s tuition, and I’m being exposed to new things, and well, just because, I’ve been on a bit of a spree lately. Fortunately, Amazon Marketplace helps me shop with some thrift. But, things in the mail to me:
1 of: Anthology [Audio CD] A Tribe Called Quest (Author)
1 of: Omnivore’s Dilemma [Hardcover] Michael Pollan
1 of: Late Registration [Explicit Lyrics] [Audio CD] West, Kanye
1 of: The In Sound from Way Out! [Audio CD] Perrey-Kingsley
1 of: The Victorian Internet [Paperback] by Standage, Tom
1 of: Souk System [Import] [Audio CD] Gnawa Diffusion
1 of: We Love Music [Import] [Audio CD] International Pony
1 of: 1999 [Audio CD] Cassius
1 of: Sexual Healing [Live] [Audio CD] Gaye, Marvin
1 of: Ultra-Lounge, Vol. 11: Organs in Orbit [Audio CD] Various Artists
1 of: Dreams To Remember: The Otis Redding Anthology [Audio CD] Redding, Otis
1 of: Absolutely the Best [Audio CD] Eric Burdon (Artist)
1 of: The Ultimate Tony Bennett [Enhanced] [Original recording remastered]
1 of: The Frisco Kid
As well, a Red Roomba with wall charger, and an iMac for the Living Room.
Stern Grove this weekend. (Contact me if you’d like to join, it’s near my house.)
Flying to Chicago next weekend.
Then, Burning Man.
The last three items are “San Francisco” themed media for a future housewarming party.
All the same, that spending is going to taper off quick, I swear! I can’t be this self-indulgent forever. I don’t want to be. But, anyway . . .
Ah, and yesterday I just started reading “The Soul of Capitalism” and it is rocking me thoroughly! Man, having a Muni commute is so fantastical!
3 Comments
Link:
https://dannyman.toldme.com/2006/08/01/celebrity/
It seems that famous people tend to visit San Francisco. A few weeks ago I was at a party and I saw Al Gore. I walked past him, nodding my head “yo, what’s up.” He nodded his head back at me, “my nigga.” The man was lookin’ sharp.
And just now, the ladies of our office came back making satisfied moaning sounds because they had met Dave Chappelle, who is having coffee at the Peet’s down the block.
I respect both men, but aside from the amusement factor, I’ll let others mob them.
2 Comments
Link:
https://dannyman.toldme.com/2006/07/08/first-harvest/
The tomatoes are still green and I need a trellis for the beans . . . though, I am moving in a few weeks anyway. But, I picked the first beans from my garden. I look forward to the meal that will feature these!
5 Comments
Link:
https://dannyman.toldme.com/2006/07/03/tazo-caffeine/
So, a little while back, I got into dropping by the Barnes and Noble cafe and sipping on a Tazo tea whilst browsing / reading. Why tea? Well, coffee is best in the mornings, and a fruit drink, that’s nice for the afternoon or evening. Tazo’s the only stuff they have that’s made with sugar instead of corn syrup, so I figure, that’s righteous.
But I could not for the life of me divine the caffeine content from the labelling.
So, I asked the intarweb . . . . nada.
So, I e-mailed Tazo, and they wrote back:
We have 14 bottled tea flavors and four of them are caffeine-free:
Brambleberry
Lemon Ginger
Simply Red
Wild Orange
These four will also have a caffeine-free stamp on the front of the label.
So, if you were asking the Internet, there’s your answer.
Feedback Welcome
Link:
https://dannyman.toldme.com/2006/06/27/muffin-lady-land/
My nostrils are enjoying the constant smell of somewhat-baked-Danny-plus-campfire-smoke that has been infused into my epidermis over the weekend. I love this smell! Makes me feel like a human hot dog! Sooo tasty! I need me a bun and some steak sauce! And vegetables!
Actually, that reminds me I need to get groceries. 
I ate out last night. Overpriced but ginormous gyros sandwich. I skipped out on my morning muffin from the muffin lady today. I love to start the day by buying my muffin from her, and then heading upstairs to eat her muffin, but I had no appetite this morning. (Yesterday we did the chit-chat and I complimented her on her looks, thus, officially “flirted” maybe.) Darn you, gyros! But, instead of joining the work crew who headed to Whole Foods I visited the muffin lady for lunch, and consumed a bowl of chili and a fruit thingus. And read my book, Bulgakov’s “Heart of a Dog” and while doing so, noticed that there were attractive women checking me out as I checked out them. One read her own book, but what book that was eludes my memory. Oh man, I gotta get growing beyond the comfort of the muffin lady and into flirting with strangers. It will come.
I also gotta resist the urge to compare myself to a hot dog and talk about my muffin munching on the blog.
Or do I?
2 Comments
Link:
https://dannyman.toldme.com/2006/06/04/wine-faith-yoga/
Well, things have been busy. Saturday Duncan took me out to a winery shindig in Mendocino. He had originally planned to go with a beautiful woman named Janey, but this beautiful woman had some personal sympathy for my present situation, and was happy to send me along instead. I have not yet retrieved my fedora from the city, I might do that tonight, and since Duncan’s ride is a Porsche Boxster, he grabbed me a hat at Long’s drugs. “Originally I was looking at the baseball caps, but then I remembered Danny’s style!” It was a good trip, tasting wines. I grabbed a couple at this one very off-the-track winery that Duncan loves, because the wines have such excitingly distinctive tastes!
Today, I walked down to church, wearing a new shirt I had bought at Target. The farewell sermon from the outgoing intern minister, Lisa Sargent, was off the hook and beautiful. The congregation gave her a standing ovation! It was about going “off the map” into uncharted territory, in life. This is something she has done in her life, something I have done in mine, and something a lot of us tend to do at the end of Spring. So, it was apropos for so many people. One of the important themes she described was faith, and what faith is. She said “belief clings, faith lets go.” And that is how I feel . . . I have faith in myself, in my world, in the people. I have faith in my own future, however unknown it has recently become. I have faith in Dad, and his recovery. And I have faith that Yayoi . . . she will live her life, and I hope in time she will better know herself. Too bad that one had to be let go. So, I can not cling to the life I had even a few months ago, but I have faith in the new life I am leading.
I stopped by the bookstore, and got what looks to be a very good cookbook “for two, or for one.” I look forward to trying it out and eating well, on my own and I hope, on occasion, with some company. I also grabbed a yoga video. Yoga? Well, I remembered reading on Hiromi‘s blog somewhere that she used to be like me: so inflexible she couldn’t touch her toes, but thanks to yoga, life’s a lot more “wow.” There’s a class at Heather Farm later in June I might go for, but I don’t know how long I’ll keep to living in the ‘Creek, so I figured a $15 in the DVD player is worth more than an $88 class in the uncertain future, let’s give it a shot.
I also grabbed an amplified radio antenna at Radio Shack, and after a bit of waving around, have found solid reception for KQED! So, I have some interesting human voices back in the house with me!
Feedback Welcome
Link:
https://dannyman.toldme.com/2006/05/01/day-without/
My my what is in my Netflix queue today?
How topical! Honestly, I did not set this up: that’s just how the queue shook out!
1 Comment
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