Thursday May 21, 2009

Project 9: Passion we need

Be honest, I always feel hard to figure out an attractive topic and write down something for it. Be honest again, lazy is another reason. Starting to write down the material after lunch, it took me two hours. Then, I took one hour to prepare for it. That is not a good habits.


Anyway, I enjoy delivering in front of audience. I like this kind of feeling like a teacher or an actor. Here is the speech, hope you like it.


Do you think what is the most primary and critical element to make up a success? A persistent success. You could have started to count in your mind. Talent, education, chance, money, relationship, communication, coordination and organization skills and so on. This list can be expanded longer.

But what is the key element? (Long pause) IMO, it is PASSION.

No high talent, we can work hard. No good education, we can self-study. No chance, we can create it. No money, we can earn it. No good skills, we can practice. But, without passion, your failure is written at the starting line.

Without passion, a painter has advanced skills is just called artisan,  in stead of artist. Without passion, a wonderful job just become to a way to get salary. Without passion, you have lost your life, no matter how rich you are.

You could have heard the story of Chen Jingrun, the great mathematician. He spend his spare time to investigate Goldbach Conjecture and made a breakthrough. However, do you know how rough his living and working environment? Only a six square meters room. The only he hold are the pencil, paper, knowledge and his passion for math. The passion support him to overcome all the problem. External environment is an important part, but it is not the critical point. The critical one must be something in our mind. It must be something you want from your heart. It a strong felling. It is a strong desire. That is passion.

If you think this example is far from us, we also can find the similar example around us. Even, in Toastmaster Club. Lendan transfered from an art student to a science student successfully. How hard for him at that time, how much knowledge need to grasp and how much time he have to spend, we can image it. Finally, he succeeded and was recognized by this famous IT company. What could have given Lendan the strength to defy all odds. It is passion. Passion is the fuel that propels the rocket.

As also, passion is the catalyst for the other components. It give you the energy to burn the oil and wrote down 100 love poems for your girlfriend one night. It let you knit the sweater in one day don't fell tire. It let you feel warm, even you have stayed outdoor and wait your lover over three hours with wind and snow.

We alway run into various choice, difficulties, even failure. Passion is like a light that will guide us out of darkness. No matter how hard it is, how long it is, how painful it is, holding your passion you will hold the future!

Project 8: How to answer in Table Topics

               How to answer in Table Topics

  This was the first time, I didn't prepare the detailed material for the speech. One of reason is the presentation provides the clue to track the structure. Another is I supposed I could deliver it just with main clue.

  I am so happy I got it. Thanks Toastmaters for those dramatic help. I enjoy it.



Project 7: Environmental Conservation in Our Office

  About half year ago, I saw a post in the pantry and it said ERI paid 2 milions RMB for
power in BJS05 last year. That is much more than I expected. I was
surprised. The project 7 is Research your Topic. They are match, so I
pick up this topic.


 Environmental protection is not far from us.

 
First of all, let me ask a question. According to your estimation, do
you think how much we paid for electricity in last year? Only Floor 7
BJS05? (Pause) It is about 2,000,000 RMB. Were you aware of that
before? I was not conscious of this situation until I saw the posting
in the pantry.


  Currently, China is stepping into a brand-new
developing phase. The country and people is getting richer and richer.
Business and individual cars flood in the street. Our house are full of
all kinds of electrical appliances. Tons of oil, coal, electricity and
natural gas consumed in every day. Everybody are looking forward to
happy and nice life, but too much resource consumption will destroy the
nature. More vehicle lead to more gasoline consumption. More electrical
appliances means more coal consumption. Eventually, all of those cause
more green house gas emissions.


  Even books lead to
deforestation. China has 220 million students in schools of all types.
If we assume that one student uses 15 textbooks per school year, that
means Chinese students will use more than 3 billion textbooks every
year. As the newspaper say our goal is to build up a
resource-conserving, environment-friendly society. Hence, we have to
change for it. A new item - "the nation encourages the reuse of
textbooks" - has been added to the revised Compulsory Education Law,
effective last September. If each book costs 15 yuan, we could save
more than 45 billion yuan by reusing those 3 billion textbooks for one
school year. That is equivalent to 550,000 tons of paper, or about 11
million trees.


  Can you image only book reused can save so much money and natural resource. Unimaginable. Right? But, that is the fact.

 
Environmental conservation is not only for the government or
organizations, also for every individuals. What we can do in our daily
work? What is the resource consumption problem for the company like Sun?


 
Dave Douglas, vice president for eco-responsibility at Sun said, "We're
not only part of the solution, but also part of the problem," he
confesses. What he means is that computers are egregious energy hogs.
Data centers alone, Sun calculates, account for 2-3 percent of total
world energy use, with all IT making up more like 4-5 percent. At big
companies, 20 percent of total energy costs can typically be accounted
for by information technology.


  In addition, I did a statistics
to see how many people power off their desktop machines when they left
the office.(Pause) Less than half. Say, we are wasting tons of
electricity resource for nothing. We really need do something, from now
on. What we can do in our daily office life?


  \* Power off your desktop when you left in the afternoon or weekend.
  \* Identify and turn off unused equipment in your labs and data center.
  \* Turn off your monitor when you leave for lunch
  \* Setting your computer to power save mode.

  You could suspect for those tiny steps. Is it really helpful? Yes.

 
Let's look back to the number we mentioned in the very beginning. If we
have 5% saving, say 100,000 Yuan, in electricity at floor 7, what
happened? It is equivalent to :

  \* 17 passenger cars not driving for one year
  \* provide electricity for 12 families for one year
  \* reducing our green house gas emissions by 90 tones.
  \* half acres of forest preserved from deforestation

  Everyone's tiny contribution could cause a huge miracle. A penny saved is a penny earned. Don't hesitate. Let's move, now.



Wednesday May 20, 2009

Project 6: Lost and Found

Actually, I have delivered this speech about half year ago. Share with you, just for fun.

Do you guys know Lost and Found?(Pause) OK, I know you guys are engineers, especial a Solaris engineer in Sun. But here, I don't point to the directory in /export/home. I means the comedic film “Lost and Found”. The Chinese name is “I am LiuYuejin”. (Short pause) Mr. Liu is a cook who lost his packet which contains all of his property. The whole story unfold from then on. (Short pause) This funny and ridiculous story trigger the old memory in my mind. Some of them could be more funny and incredible.


Someone said a person had never lost cellphone just like a baby never had bed-wetting. I have lost several cellphones, or say I was stolen several times. :-( I lost my one of them in bus, one of them in subway, one in shopping. Even, another one I have no idea where I lost it. But the most incredible location I lost it was in my bed. More exact circumstance was my cellphone was put beside my pillow when I go to sleep. But it was gone when I wake up in the morning. My dormitory-mates, XiaoYu, is still snores loudly and symmetrically. (Imitation his snore?)I try to call my phone using his one. But his phone was gone as well. I got out of the bedroom and was aware of the door in the sitting-room was open. It was obviously, our cellphones were stolen when we was sleeping. (Pause) The story was not end. I went to office and report it to the police. And XiaoYu promised to wait for the policeman in the home. Half hour later, four big and strong policemen come to our dormitory and got XiaoYu to the office to record his testimony. They looked like impatient and even annoyed. XiaoYu and the four policemen got down the stair along. Two in front of him. And two behind him. It was morning exercise time, many our neighborhoods were exercising out the door. So, my pool dormitory-mate looks like a thief was walking among them. The police car whizzed past in the morning (Simulate the sound of police car here?). When the pool XiaoYu came back two hour later, the old gentleman living in our downstairs came in the presence of him, put his hand on his shoulder and said to him, in a whisper.

“I heard that guy (He is getting at me) was arrested by the police. Is that right?”

My cellphones was stolen in the bed. That was unexpected, but the more unexpected thing was I was supposed to be the thief.(Long pause)


However, usually it is obviously, I am the victim. At that year, I started my career in Beijing and came back to my hometown in the Spring Festival. Engineers like T-shirt and Jean. Yes, Me too. But I didn't want my parents thought I was still a mess boy even work. So, I took the formal clothes and came back to my home town by train. The train environment was safe and comfortable. I woke up until the train pulled in the morning. How a wonderful journal! I stretched and got up. Start to take my clothes, my neck tire, my treasures, my socks, my ... (Pause) Wait!!! Where are my shoes? Where are my leather shoes? Where are my brush leather shoes? I can't find it it. It was gone. It must be somebody took my shoes off. But most of the traveler have left the carriages. It is impossible to figure out who stole my shoes? I had no choice and get out the station without shoes. (Pause) You can image how funny I looks like. A young gentleman is wearing formal black western-style clothes, black treasures , delicate neck tie and taking a wonderful bag, but barefoot. People stared at me and snickered.


I felt very shy and embarrassed. At that time, I hated the thief. I even was not annoyed for his behavior, that was his work. But I was angry that he let me lost face in front of crowd. Even a slippers can help me out of the jam. I was imaging what I need do if I was a thief. Finally, I got the conclusion that I would keep my professional ethics even I was a thief. Got I should got and left others. It seems that the great minds think alike. Because I do encountered one not a long time later.


Two years later after we graduation, we hold a party to renew for the classmates. We had dinner in restaurant, we sang in KTV, we dance and so on. That was amazing experience. We talked a lot and drunk a lot. We say good-bye to each other in the midnight. When I tried to take out my wallet and pay for the taxi blow my apartment, I realized it was lost somewhere. Not much cash in it. But I lost my ID card and all my bank cards. Suddenly, I sobered up from the alcohol. It was later. I didn't think the thief can guess my bank account password. But it was fussy to apply for new ones, especially without ID card. It was distress and vexatious. I was prostrate that that days. Do you believe miracle? I don't believe it before. But now, I believe it. (Pause) Two days later, I got a letter contained all my lost in my wallet, except for the cash. That is unbelievable. I was so exciting and looked like I got a million lottery. I was thinking maybe I could say thanks to the thief if he was standing in front of me. I really admired his profession.


I lost my cellphones. But I found it was better not trouble others for this kind of tiny cases. Try to figure it out by yourself, or let it go. I lost my shoes. But I found keeping dignity is more critical than appearance. I lost my wallet and all the stuff in it. But I found keeping profession is more esteemed, even you are a thief. :-)

Tuesday May 12, 2009

5.12 earthquake one year anniversary


One year ago, the big earthquake of this century attacked Sichuan China. Thousands of lives and buildings were damaged in one second. People lost their houses, parent lost child, wife lost husband, son lost mom. All those happened in one second. Thousands of lives disappeared in one eyes click.


Can't forget the stretch of small hand in the ruins. Can't forget the tears of a father who lost her daughter. Can't forget a young mother who lost her life to protect the newborn. All those memories will remain in my life for ever.












a mother wait for her child















a youny woman lost her husband














a father tear for his lost











a child's dream:


I wanno to be a scientist and create a time machine to save my mom.
.












Keep moving, tomorrow will be better.

Sunday Mar 29, 2009

三十而立

   
大家都说三十而立,来,我们敬你一杯,先立起来,于是我只好站着喝下肚子去!然后就这样喝着,吃着,嚷着,我的三十岁生日就在这样纷纷扰扰,热热闹闹中度
过了。洗漱过后上床睡觉,悠悠和妈妈已经早已睡着了,小家伙的呼噜声和爷爷有一拼,睡的很香,让人羡慕。二十岁的尾巴终于从手中抽走,不见了。

   
一大早醒来,我还在床上想再赖一会儿,吴悠悠却开始抓我耳朵,抠我鼻子,我装睡着蒙起被子,他却早已骑到我的被子上作骑马马状,嘴里面还一个劲的“架!
架!架!”。我投降了,我起床。快给爸爸说生日快乐,阿玲咯咯的笑着说。她一直在旁边撺掇着这小土匪折腾我,看我终于败下阵来,开心了。于是吴悠悠双手叉
起来,做作揖状,然后立马又是骑马状。

   
跟他正在被窝里打闹,妈给我打电话,说祝我儿生日快乐,爸的话更经典:岁岁(zui1zui1,陕西话)快乐!我都惭愧了,儿的生日,娘的受难日。我本先
打给他们的,却不想,他们竟先打了过来。妈交待,一定要下面,吃两个鸡蛋。于是,早上吃的比中午都多,中午一点不想吃饭,早上吃的多了。然后就是姐的电
话,又说起如果在跟前就一起过生日了,因为我们俩只隔一天,于是小的时候,她总是推后一天,而我提前一天,一起过生日。再加上岳母前一天还给我电话,让我
很是激动了一下。按老家规矩,有父母在,孩子是不过生日的,哪怕你已经儿孙满堂,在父母跟前你还是个孩子,是不过生日的,也就多吃两个鸡蛋。

    一白天还是忙工作,各种项目上的事情,下班早点回家,和朋友一起聚会,吃饭。阿玲定了生日蛋糕,以悠悠的名义写着:祝爸爸生日快乐。在大伙的生日快乐歌中,我还有些不好意思,快速许个愿望一口气将三支蜡烛吹灭。立着一起干杯,开心的说笑!

    我,三十了!

Monday Jan 19, 2009

一个可以从sina上下载书的小工具

       在sina上看见一本讲述中国历史的书--《中国二十王朝崛起真相解密:帝国崛起》,觉得每一篇的大小比较适合下载到手机上看。于是就打算拷贝下来,但是一细看发现一页一页的用鼠标拖拷,近200页的页数,在加上建文件,有点不靠谱。 稍微花时间研究了一下它的html源文件,发现写一个简单的script就可以完全替代手工劳动。

      主要思路:首先用wget将html页面下载到本地,谢天谢地它的每一本书页数之间的编号是顺序的,所以只需要指定第一页和最后一页的url就好。比如这本帝国崛起,只要通过参数 -f 和 -l 分别指定第一页最后一页,就可以把这其间的所有页都下载到本地。然后过滤出需要的有用内容,去除无用的tag信息,一个个txt文本就生成好了(我用的moto-txt,就认txt的)。

   环境:Solaris.(linux应该也行,只要有wget,不过没有试过)


Saturday Dec 20, 2008

如此为顾客考虑的交行信用卡

我的交行信用卡三年了,12月底到期,我打算废弃不用。


主要有好几个原因,首先,消费没有电子明细,只有纸质账单。这个在扣帐的时候想核对一下,就变的比较麻烦。我曾经做过银行软件,知道银行的账务绝没有老百姓
想的那么严谨。进账和出账砸不平,那是天天都有的事情。当我第一次听一个银行职员说的时候很惊讶,但从那人的脸上表情我可以推测出,这事情在银行内部已经
是稀松平常的事情了。


另外还有两件事情,让我对银行不能完全信任。我曾经在车上遇到过一个退休的大妈,给我讲过一个发生在她自己身上,银行扣错帐的事情,因为他是学财务的,对数
字敏感,发现了。还有一个曾经的同事,这人是理工出身,做事精细严谨。在提前还贷一部分的情况下,自己又算了一下下个月应还钱数额,发现和银行扣掉的不一
样。于是找到银行,最后发现竟然是银行算错了。真人真事,却难以相信。


其次,有两次在自动从关联卡中扣钱不成功的情况下,竟然一直没有通知我。没有电话,没有短信,直至再一次扣款的时候才告知我。白白让我交不少滞纳金。


还有,不少地方刷卡消费后,往往账单上找不到具体交易地点。这往往让人困惑。 再有,就是交行的网银做的比较烂,转账什么的都得跑银行网店,实在是不方便。当然,也是因为我已经有另外银行的信用卡了,再多的信用卡只会是麻烦。


于是,打电话给交行800,告之他们我不打算继续使用了。想在卡不能使用之前,把我的近四万积分兑换了。结果客服告诉我,我的积分已经被转移到即将寄来的新卡上了,无法兑换,直到开通新卡。


可我还不一定继续使用你们的卡呢!”


那也没有办法,积分已经转移了。在您的新卡激活之前,是不能使用积分的。”


为什么?我的老卡还在有效期之内啊!”我问。


我们也是为了您用卡的安全,...”


那我不想再用交行信用卡了,但是我要我的积分。怎么办?”


那您只有先开通新卡,兑换级积分,然后再注销。”


跟客服争辩了半天,还是没有结果。我挂了电话。如果这确实是他们的业务逻辑的话,再与客服谈下去,也是浪费时间。


什么叫霸王条款,这恐怕就算是了。在未经持卡人同意的情况下,就转移了客户的积分,难道这也是为客户着想么?这就是交行的以客户为本么?如果交行想以这种方式,为客户着想,那我还是宁愿不要这样的“体贴服务”。

Wednesday Oct 08, 2008

10个月娃娃玩吊环


一晃眼,那个襁褓中的小家伙,已经可以驾着学步车满屋子乱窜了。两个月不见,学会不少东西,孩子的学习能力真的很强,看着大人打电话,然后自己也拿起手机放在脑袋侧面,只是不明白该放在什么位置。常常是脑袋顶,抑或是后脑勺。爱玩,爱爬,爱运动。跷跷板要翘,秋千要甩得高,最爱的是吊环。

10个月的娃娃玩吊环,你见过么?那姿势,堪比吊环王!


有没有发现,腹肌很强,腿提的很直?嗯,很有他老爸当年风采!

Friday Sep 12, 2008

Lost and Found

I did my project 6 several days ago. This time, I think I do better than before. :-)


Do you guys know Lost and Found?(Pause) OK, I know you guys are engineers, especial a Solaris engineer in Sun. But here, I don't point to the directory in /export/home. I means the comedic film “Lost and Found”. The Chinese name is “I am LiuYuejin”. (Short pause) Mr. Liu is a cook who lost his packet which contains all of his property. The whole story unfold from then on. (Short pause) This funny and ridiculous story trigger the old memory in my mind. Some of them could be more funny and incredible.

Someone said a person had never lost cellphone just like a baby never had bed-wetting. I have lost several cellphones, or say I was stolen several times. :-( I lost my one of them in bus, one of them in subway, one in shopping. Even, another one I have no idea where I lost it. But the most incredible location I lost it was in my bed. More exact circumstance was my cellphone was put beside my pillow when I go to sleep. But it was gone when I wake up in the morning. My dormitory-mates, XiaoYu, is still snores loudly and symmetrically. (Imitation his snore?)I try to call my phone using his one. But his phone was gone as well. I got out of the bedroom and was aware of the door in the sitting-room was open. It was obviously, our cellphones were stolen when we was sleeping. (Pause) The story was not end. I went to office and report it to the police. And XiaoYu promised to wait for the policeman in the home. Half hour later, four big and strong policemen come to our dormitory and got XiaoYu to the office to record his testimony. They looked like impatient and even annoyed. XiaoYu and the four policemen got down the stair along. Two in front of him. And two behind him. It was morning exercise time, many our neighborhoods were exercising out the door. So, my pool dormitory-mate looks like a thief was walking among them. The police car whizzed past in the morning (Simulate the sound of police car here?). When the pool XiaoYu came back two hour later, the old gentleman living in our downstairs came in the presence of him, put his hand on his shoulder and said to him, in a whisper.

“I heard that guy (He is getting at me) was arrested by the police. Is that right?”

My cellphones was stolen in the bed. That was unexpected, but the more unexpected thing was I was supposed to be the thief.(Long pause)

However, usually it is obviously, I am the victim. At that year, I started my career in Beijing and came back to my hometown in the Spring Festival. Engineers like T-shirt and Jean. Yes, Me too. But I didn't want my parents thought I was still a mess boy even work. So, I took the formal clothes and came back to my home town by train. The train environment was safe and comfortable. I woke up until the train pulled in the morning. How a wonderful journal! I stretched and got up. Start to take my clothes, my neck tire, my treasures, my socks, my ... (Pause) Wait!!! Where are my shoes? Where are my leather shoes? Where are my brush leather shoes? I can't find it it. It was gone. It must be somebody took my shoes off. But most of the traveler have left the carriages. It is impossible to figure out who stole my shoes? I had no choice and get out the station without shoes. (Pause) You can image how funny I looks like. A young gentleman is wearing formal black western-style clothes, black treasures , delicate neck tie and taking a wonderful bag, but barefoot. People stared at me and snickered.

I felt very shy and embarrassed. At that time, I hated the thief. I even was not annoyed for his behavior, that was his work. But I was angry that he let me lost face in front of crowd. Even a slippers can help me out of the jam. I was imaging what I need do if I was a thief. Finally, I got the conclusion that I would keep my professional ethics even I was a thief. Got I should got and left others. It seems that the great minds think alike. Because I do encountered one not a long time later.

Two years later after we graduation, we hold a party to renew for the classmates. We had dinner in restaurant, we sang in KTV, we dance and so on. That was amazing experience. We talked a lot and drunk a lot. We say good-bye to each other in the midnight. When I tried to take out my wallet and pay for the taxi blow my apartment, I realized it was lost somewhere. Not much cash in it. But I lost my ID card and all my bank cards. Suddenly, I sobered up from the alcohol. It was later. I didn't think the thief can guess my bank account password. But it was fussy to apply for new ones, especially without ID card. It was distress and vexatious. I was prostrate that that days. Do you believe miracle? I don't believe it before. But now, I believe it. (Pause) Two days later, I got a letter contained all my lost in my wallet, except for the cash. That is unbelievable. I was so exciting and looked like I got a million lottery. I was thinking maybe I could say thanks to the thief if he was standing in front of me. I really admired his profession.

I lost my cellphones. But I found it was better not trouble others for this kind of tiny cases. Try to figure it out by yourself, or let it go. I lost my shoes. But I found keeping dignity is more critical than appearance. I lost my wallet and all the stuff in it. But I found keeping profession is more esteemed, even you are a thief. :-)

Friday Aug 29, 2008

non-interactive FTP

#!/bin/ksh -p
ftp -n patchstatus.sfbay <<EOT | mailx -s "FTP server list" your-email@address
user username password
cd /pub
dir
quit
EOT


If you are Sun employee, replace 'username' with 'ftp' and your-email@address and passwd with your real email. Try to see what happen!

Monday Jul 07, 2008

用ZFS rollback还原根系统

ZFS作为根文件系统被集成到solaris中是从b90开始的。到底有什么好处呢?这有个例子。
因为要做ZFS crypto测试,于是以ZFS为根装好系统后,准备bfu到一个ZFS crypto版本。考虑到可能的潜在系统危险,先给整个系统打一个snapshot。

# zfs snapshot -r rootpool@freshinstall

然后bfu,reboot。果然让我碰上了,系统开始不停地在启动阶段panic。看来得试一试用zfs rollback功能恢复,重启后在grub中选择failsafe模式进入。

# zpool import
  pool: rootpool
    id: 3421507135120447382
 state: ONLINE
status: The pool was last accessed by another system.
action: The pool can be imported using its name or numeric identifier and
        the '-f' flag.
   see: http://www.sun.com/msg/ZFS-8000-EY
config:
        rootpool    ONLINE
          c1t2d0s0  ONLINE

显然,ZFS pool是在的,就是有问题导致无法加载和启动。
重新导入rootpool

# mount -o rw,remount /
# zpool import -f rootpool
libshare SMF initialization problem: entity not found
# zfs list
NAME                                     USED  AVAIL  REFER  MOUNTPOINT
rootpool                                9.18G  24.3G    36K  /rootpool
rootpool@freshinstall                   21.5K      -    36K  -
rootpool/ROOT                           5.61G  24.3G    18K  legacy
rootpool/ROOT@freshinstall                  0      -    18K  -
rootpool/ROOT/zfsroot                   5.61G  24.3G  4.88G  /
rootpool/ROOT/zfsroot@freshinstall       619M      -  5.04G  -
rootpool/ROOT/zfsroot/var                135M  24.3G   133M  /var
rootpool/ROOT/zfsroot/var@freshinstall  2.33M      -   132M  -
rootpool/dump                           1.78G  24.3G  1.78G  -
rootpool/dump@freshinstall                16K      -  1.78G  -
rootpool/export                           52K  24.3G    19K  /export
rootpool/export@freshinstall              15K      -    19K  -
rootpool/export/home                      18K  24.3G    18K  /export/home
rootpool/export/home@freshinstall           0      -    18K  -
rootpool/swap                           1.78G  26.1G    16K  -
rootpool/swap@freshinstall                  0      -    16K  -

回退到@freshinstall

# zfs rollback -r rootpool@freshinstall
# zfs rollback -r rootpool/ROOT@freshinstall
# zfs rollback -r rootpool/ROOT/zfsroot@freshinstall
# zfs rollback -r rootpool/ROOT/zfsroot/var@freshinstall
# reboot

系统重新启动后,可以正常启动。

Tuesday Jun 17, 2008

Laughing

Baby's laughter is the most marvelous sound in the world!

Tuesday Jun 10, 2008

ZFS in MacOS Snow Leopard

Long time ago, there was a rumor that Apple will integrate ZFS into MacOS, like DTrace. Now, it came true. You can image how a wonderful product which invented by the two innovative companies.


http://www.apple.com/server/macosx/snowleopard

Thursday Apr 17, 2008

用榔头砸运行中的硬盘,你的系统会怎样?


    
一个正在运行的系统,如果我们用榔头砸坏硬盘,你的系统仍然可用么?数据仍然完整可靠么?

    ZFS让这成为可能! 





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