huang zuxing blog @ home the quieter you become, the more you are able to hear.

15Aug/15Off

ChuChu 6 year old birthday

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14Aug/15Off

clean those 10+ years cables, improve air flow.

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8Aug/15Off

35

20140923044913583

18Jun/15Off

debug standalone samba server 3.6.9 on redhat 6.4 with ldap auth

in smb.conf, set log level to 7 , restart samba service.

use client to map share folders,  check the log,  found below related errors:

5Jun/15Off

十年

一个好人,辛辛苦苦做了接近十年,离开我们; 他是一个做得了事,吃得了亏,负得了责的人才。

他做了那么多,我是珍惜和欣赏他的人,可有人不啊。

马云说的还是经典:做得不开心或钱少,就是辞职的理由。

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26May/15Off

iPad images 2014

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26May/15Off

head [wp-flowplus]

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24May/15Off

Dear chuchu

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24May/15Off

往事随风

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23May/15Off

Dear tongtong

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23May/15Off

back online

My Acer 720 PC had serviced us 4 years and failed to power-on on earlier of 2015( power supply failed).

Booked new machine and busy for a few months, today got time to set it up .

 

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31Dec/14Off

20141231

在看台北的跨年演唱会。

记录一下今年的流水帐:

出行篇:

  • 4月回家过清明;
  • 6月回家吃荔枝;
  • 9月魔都上海;
  • 12月带老的,小的回家;
  • 12月带老大访锦官城;

家人篇:

  • 老大P1,也开始练习钢琴;
  • 老二不怕老师了,聪明伶俐;
  • 老三冬天也不盖被子,欺负姐姐是常事;
  • 和老婆结婚十年,老婆还是很cute;

工作篇:

  • 完成两个大的机群;
  • 完成RDHx系统;
  • 继续减少PUE;

2015展望篇:

  • 多看书
  • 多锻炼身体
  • 多陪女儿老婆
  • 有机会就回家陪爹娘
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1Dec/14Off

This is the final how it looks like

rack_cable

23Nov/14Off

HP Apollo 6000 (2014)

After deployed HP Apollo 6000, like to high light below limitation as HP sale team  didn't mention those before :

1.  Putting 4 or 5 switches in the middle of rack is not a good idea,  hot air come out from the middle of rack and suck into top level chassis, hot spot creates ;  recommend to put switch on top of rack: [ updated this on 12/Dec/2014, at the end after read HP doc by ourselves, we found HP network team sent us the wrong fan model, which push hot air to front cold aisle although we have set fan direction " power to port" , after replaced the fan with correct model, no more such issue.]

17186-019a-Door-off-lo-res_apollo6000 IMAG3180_apollo_heatp

2.  APM reports node power wrongly, in the max load,  it reports every compute node uses 170w+ ; total 140 nodes  x 170w  = 23.8kw , but the actual is,  total whole rack , 140 nodes  use power 13kw only .

Apollo_APM_power_report1 Apollo_APM_total_power_report

 

3.  Power shelf limitation:  for PSU,  it is  N+N;  but if the AC to DC board is failed, all chassis which use this power shelf  will be power off,  each power shelf could connect 6 chassis, the impact is huge  .

001zu03_apollo_power

 

4.  Each Chassis has 5  fan modules, each  module has 2 fans; if one of module is down, whole chassis will be down.  if one of 10 fans is down,  to replace the fan module, engineer must put in new module within 60 seconds after remove the faulty fan module.  if not , the whole chassis might be down.

 

18Nov/14Off

Rear Door Heat Exchange from coolcentric Nov/2014

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18Nov/14Off

tongtong on 11.10

我可爱的小三。

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18Nov/14Off

the simplest way to explain mapreduce

Below copy from internet:

下面这段话是网上其他人用最简短的语言解释MapReduce:

We want to count all the books in the library. You count up shelf #1, I count up shelf #2. That's map. The more people we get, the faster it goes.

我们要数图书馆中的所有书。你数1号书架,我数2号书架。这就是“Map”。我们人越多,数书就更快。

Now we get together and add our individual counts. That's reduce. 

现在我们到一起,把所有人的统计数加在一起。这就是“Reduce”。 

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16Jul/14Off

女儿渐渐长大了,珍惜吧!

浏览原文 here

 

0

有时候,我们身处幸福而不自知

0-2

有种幸福只有为人父母才能体会

0-3

我们给与的同时,从他们身上获取的更多

0-4

小小的依赖,唤醒的是巨大的爱

0-5

有些时刻,会让世界和我们一起慢下来

0-6

其实,这么亲密的日子,每一天都不会重来

0-7

其实,这么亲密的日子,会让我永生难忘

0-1

其实,这么亲密的日子,就那么几年。。。
总会有个天使因你而来
并让你明白生命全部的意义
亲爱的爸爸妈妈,请多陪陪我们的孩子,再不陪他们就长大了!

 

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26Jun/14Off

n年后,希望她们还记得,这是爸爸最幸福的时候。

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www.huangzx.net

22Apr/14Off

我的小白楼

huangzx.nethuangzx.net

22Apr/14Off

Inrack chilled water cooling system 2014

Site 1, chilled water is 13C, use Rittal LCP and Rittal CMC :
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Site 2, chilled water is 5C, use RC Group coolside, Rittal CMC:
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31Dec/13Off

2013回顾 展望2014

套用《甲方乙方》的台词, 2013 就快要过去了,我很怀念2013。

2013带我家的四个女人回去扫墓祭祖;回了两次老家,陪陪我爹娘。

买了块地在湛江,这辈子和麻章这个地方倒是有缘了。

端端抽到了我们心意的小学,楚楚甜美,桐桐去幼儿园了,Imelda还是我我们在一起,6年了。

家人都好,大哥的楼盖到了7层,弟弟顺利买了新房,平平安安,顺顺心心。

6月去了德国,11月去了美国,走走动动看看。

 2014

1. 继续学习管理数据中心,节省能源。

2.多陪我闺女们,一起读书,旅游。

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20Dec/13Off

改变从点滴开始

今天一IT同事说,只想做大项目,不想做“维护,运营";   认为只有大项目才能有改变。

我倒觉得改变从点滴开始。

今年做了很多工作在提高数据中心的冷却效率,很多都是小事,如调整地板出风口,导引热风。花小钱省大能源,没必要花几百万建新数据中心。

 

 

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4Dec/13Off

150 5

今天公司裁员,新加坡走了150人左右。

晚上读《马云内部讲话II》,同感以下话题:

生存在公司里就要: 敬业,激情,合作,客户第一,拥抱变化。

在变化里,变革里,要学会放弃。如果不放弃延安,如何得到全中国。

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4Dec/13Off

TongTong go to school

2/Dec/2013 早上起来,无辜的脸,为什么要穿姐姐的校服。

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03/Dec/2013

第二天,高兴的很,没有YAYA在傍边就哭。

 

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小三上学了。

 

10Nov/13Off

2013 Nov

观看女儿幼儿园的毕业典礼, agape Uni .

看到老大在台上,一瞬间所有时光飘过脑海,多少有些激动。

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学校表演的主题有:

1. 拯救地球, 保护环境,爱护动物。超赞。

2 .锻炼身体,快乐生活。

3.种族和谐,新加坡生活。

比起我当年的,热爱党,热爱劳动,热爱人民,大大地接地气。

大女儿就要上小学了,今天是她的学校欢迎新生,熟悉学校。

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1Sep/13Off

Aug/2013

my dear

huangzx.net

huangzx.net
huangzx.net

 

22Jul/13Off

tongtong swimming

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4Jul/13Off

work in office

优秀的员工往往不是被动地等待别人安排工作,而是主动去了解自己应该做什么,然后全力以赴地去完成。

http://www.puzzlebird.com/wp/society/zt-workplace-little-story-three-years-why-i-do-not-have-a-promotion/#more-6742

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