MJ's insight into innovation, IT, world and Sun Microsystems

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화요일 4월 21, 2009

Sun and Oracle - the new stack for the customer

Big news on April 20 of 2009!


As a Sun employee, I am really sad to hear the news of "Oracle buys Sun". But the new stack that is only possible thru the acquisition will provide unprecedented "enterprise and open" stack for enterprise applications - applications down to OS, servers and storage.


I hope it provides new value and new economics for the customers. Actually that might be the only scenario where the technical pieces from both parties are fit together to build a complete enterprise stack - an eye opener for the customers. Or it could be serviced or provided in the form of cloud computing or cloud service. Just my very personal guess. If there is anything that could be called an enterprise-class cloud platform, who else could provide it other than "Sun+Oracle" combo?


Here's the high level sketch of the stack. Let's how it actually pans out over the course of time.


One thing for sure is Sun+Oracle might be the least painful or least destructive combination from the evolutional angle of amazing suites of Sun technologies if Sun is to be combined with other IT titans in order to provide better value for the shareholders in the longer run.


April 20, 2009 will be remembered as the end of old IT paradigm and the start of new IT paradigm. Let's look back at this in a couple of years how the vision becomes a reality for the customers.


IT evolves for simplicity! (IT diverges for features and IT converges for simplicity!) - It's a simple MJ's Law which is the summary of my own observation and contribution to the IT over the last 25 years.

토요일 4월 04, 2009

a studio-quality hifi system at home

The Hifi systems setup you see below is a result of my effort to bring studio-quality professional system into my home. 



The speaker is heavy (close to 100kg or 200 pounds) and big with two 15" woofers (low frequency speaker unit) in it. You might ask 'where is mid or high frequency units?'. A very good question! Tannoy speaker is renowned for dual-concentric unit which encloses a high frequency horn unit right into low frequency unit. Look at upper speaker unit, you will find a small hole in the center from which high frequency sound is coming behind.


The speaker is powered by another studio-quality power amplifer from Crest Audio. The amp boast more than 400 watts per channel. Enough to rattle the whole apartment. Living in an apartment unit, I can never push my system to that exterme.  


Though this speaker is unbelievably fast and accurate, the sound is on the dry side. I like a bit of warmth in the sound. So I matched it with a tube preamplifier which adds a juice of warm into the final sound.


My quest for ultimate sound (without spending a fortune) continues ...

수요일 4월 01, 2009

Intel Nehalem CPU 발표 그리고 썬

2009년3월31일 인텔의 제온5500(코드명 네할렘 Nehalem) 발표장에 초대받아 갔습니다.




새로운 cpu가 발표할때마다 그전 세대의 cpu와 비교하여 성능향상이 있다는 것은 전혀 놀라운 사실이 아니죠. 널리 잘 알려진 소위 무어의 법칙처럼 대략 1년반-2년마다 약 두배의 집적도 또는 성능향상이 있어왔습니다.


그런데 이번 네할렘 발표는 그 어느신제품보다도 인텔의 기술향상 또는 혁신이 잘 적용된 훌륭한 제품발표라고 생각합니다. 그 동안 인텔 cpu의 상대적약점으로 지적되어 온 메모리관련구조를 획기적으로 개선되었네요. 이 때문에 memory intensive application의 경우 4-5배의 성능향상을 보이기도 합니다. 그 이외에도



  • 에너지 절약, 전원관리 기능 개선

  • 가상화기능개선


등이 눈에 띱니다.


썬마이크로시스템즈는 이러한 cpu의 혁신을 최대화하기 위하여



  • 이 cpu를 채택한 다양한 제품발표 (요것에 대하여 자세한것은 몇주 후에...)

  • 세계에서 가장 진화된 OS인 솔라리스의 최적화


를 인텔측과 함께 작업하여왔습니다. 제품과 솔라리스 최적화에 대해선 별도 블로그에서 한번 다루도록 하겠습니다.


목요일 3월 26, 2009

Cloud in action - OpenOffice extention 'Save to the Cloud'

Sun Cloud internal beta just got started. (Am I supposed to share this? I believe it should be ok as Jonathan shared some stuff already in his blog)


What does this mean to you and me who's not the active developer but a casual user of productivity tools? You can rely on the network "cloud" for your storage of your valuable documents. You don't have to worry about carrying USB Memory Stick or Laptop for your document. Still don't get it? See the small picture below.




With proper OpenOffice extention, now you can save ( "Save to cloud" ) or load ( "Read from cloud" ) from the Sun storage cloud.


What a convenience! As long as there is an internet connection, I can use anybody's laptop to access my OpenOffice documents. In addition, with WebDAV support, you can use your Sun storage cloud just like any external hard drive. More on this in a later blog.


Cloud is in action. Network is the computer. Sun's tagline makes more sense now with Sun Cloud offerings!!!




월요일 3월 16, 2009

Cloud Service Korea (한국클라우드서비스협의회) 출범

저는지난 2008년 11월이후한국클라우드컴퓨팅협의회(가칭)추진위원회의 leadership을맡아서 2008년12월의 The Clouds 2008 Conference를성황리에마친바있으며그동안수차례의추진위원회회의를통해제대로된 (정부의지원도있고관련업체의적극적인참여가있는)협의회또는협회의구성을위하여노력해왔었습니다.


여러분들의 노력으로 드디어 2009년3월13일 한국클라우드서비스협의회의 출범식을 가지게 되었습니다. 이 출범식에는 업계에서 (IBM의 이휘성사장, Sun의 오세창부사장등), 연구계(한국과학기술정보연구원 박영서원장등) 그리고 정부측 에서는



  • 방송통신위원회 형태근 상임위원께서 참석하시어 축사를 해주셨고

  • 방송통신위원회 황철중 네트워크정책관(국장)께서 참석하시어 운영위원회(후보)들과 간담회를 개최하였습니다.


그리고  새로운 협의회의 리더십으로



  • KT의 최두환부사장(Service Design부문 부문장)


을  의장으로 추대하고 결정하였습니다.


한국클라우드서비스협의회가 한국IT의 위상을 한단계 높여서 현재의 경제위기를 극복하고 국가위상을 한단계 높이는 계기가 되기를 바랍니다. 간담회에서도 제가 강조하였지만



  • 현재 국내의 클라우드컴퓨팅 중에서 해외에 제대로 진출 또는 서비스하고 있는것이 없다

  • 컴퓨터의 수출보다 어쩌면 컴퓨팅(클라우드컴퓨팅)의 수출이 훨씬 쉬울수 있다

  • 따라서 정부 또는 협의회는 세계적인 수준의 클라우드컴퓨팅 기술 그리고 서비스가 탄생하도록 적극적인 제도적/재정적인 지원을 하여야 할 것입니다.

다시한번 협의회의 출범을 축하합니다.



화요일 2월 17, 2009

Perth of Australia and my son starting medicine study at UWA

Last week I visited Perth to help my son (Steve) settle down there for his 6 year study of medicine at University of Western Australia. As it was my first visit to the city and the university, I would like to share a few things I learned there.




  • City of Perth is really beautiful with lots of parks and refreshing air. I really like the Swan River that is really unbelievably wide to be a river and it is at the centerpiece of what makes Perth a beautiful place. I thought it was a sea bay in the first sight but I noticed it is a river. I would do a windsurf in the river sometime later - It's really windy in the morning. Temperature-wise ... day is hot and it is hotter than Korea, but it is not that intimidating due to low humidity. It is kind of cool in the morning. I like this weather.


  • University of Western Australia (UWA) is the member of G8 (8 prestigious schools) and Sandstone (6? old schools) Medicine faculty there seems to be very good with a few of professors being Nobel prize winners. It located right beside the river and close to King's Park which is the largest park in town. But the downside is it is relatively expensive to live and it is really hard to get a place to live. I managed to get a small studio(?) AUD310 per week for a property listed for 280. I had to pay a premium and pay 3 months upfront to secure the place among several competitors for the same spot.


     



  • Metropolitan Perth has about 3000 Korean population. "3000" is not enough to have a good list of Korean markets and restaurants. So don't expect any good Korean dish down there.  My wife complained a lot about Korean food there. But Italian food there was very good!

  • Any interesting experience? It was my first time to drive a car "left-sided" with a steering wheel on the right(vs left not vs wrong) side. I felt really weired and scary to begin with but it became comfortable to a reasonable degree if I'm kind of in alert state. Funny thing is behind the steering wheel I triggered "wiper" (on my left in Korea but on the left in Australia)  a few times a day when I intended to trigger a "turn" signal - that made my whole family feel we're in a country far away from home :-)


 

금요일 12월 26, 2008

AMD의 Opteron 또는 Intel의 Xeon?

Intel사와 AMD사의 공존덕분에 cpu는 매우 눈부신 발전을 이루고 있습니다. 특히 45nm공정에서의 경쟁에서 두 회사는 좋은 cpu를 계속 출시하고 있습니다. 저희 썬같은 시스템회사에서는 좋은 서버를 만들어낼 수 있는 핵심부품의 성능이 좋아지고 있는셈이죠.


AMD에서는 Shanghai로 코드네임으로 통하는 cpu들이 강력하고요 ... 2376 (@2.4Hz)부터 2384(@2.7GHz)에 이르는 제품들이 나오고 있고 75W수준의 저전력을 자랑하고 있네요.


Intel또한 대단한 제품들이 포진되어 있지요 ... 5400 제온시리즈 (Harpertown코드네임)가 주력을 이루고 있고 quad-core E5405(@2Ghz)부터 X5492(@3.4Ghz)까지 포진되어 있고, 전력은 80W부터 150W정도이네요.


그런데 이러한 진보는




  •  Intel의 Nehalem

  • AMD의 Phenom II



이 내년(2009)부터 본격적으로 출시되면 서버성능의 한단계 진보를 만들어낼 것 같습니다. 이는 썬마이크로시스템즈의 'multi-core, multi-thread분야에서 가장 앞선'




  •  CMT (chip multi-threading) or CoolThread



기술과 같게 CPU진화의 큰 궤적을 이루는 2009년이 될것 같습니다. 아마도 2009-2010년은 멀티코어/멀티쓰레드의 본격화의 시기로 기억될것으로 전망됩니다.


 (주) 여기에 나오는 숫자는 제가 옮겨적는 과정에서 에러가 있을수 있슴.





화요일 12월 16, 2008

the easiest way to work out going to work

The other day I got a full physical checkup and got the result back - it says everything is all right except that I'm low at the amount of muscles especially in lower parts of the body. It the result of no wonder because I stayed away from any good amount of exercise after I went thru a knee surgery.


Muscle Names


So it's time to get back on track. What should I do? I decided on a really easy one to start with. My work place on a 15th floor and I usually park my car at B4 - there are 18 floors in between. Walking up the stairs every morning on the way up to my office makes an easy workout for the morning.


Today is the first day I tried. I noticed it is not easy as I expected it be. I have catch my breath after the non-stop 18 floor walk-up. I guess it will get much easier over time. 


I just added a simple muscle diagram for the readers. Enjoy it. I will get back with progress of muscle every month.


금요일 12월 12, 2008

iPhone이 곧 우리나라에서도 나오겠네요

애플사의 iPod를 몇년전부터 사용하기 시작한 이후


저는 이세상에서 the coolest products를 생산하는 회사인 Apple에 대하여 누구보다고 관심이 많아지고 있습니다. iPhone의 발표 (by Steve Jobs)를 보는 순간 '다은 다음 휴대폰은 저거야!'라고 이미 의사결정을 하였습니다.


isn't this cool 


그런데 한국에서 iPhone을 볼수 있을지는 계속 안개속이었습니다. 그런데 며칠전 방송통신위원회에서 '휴대폰 wipi 의무탑재규정'을 철회한다고 결정하였습니다. 짝짝짝!


늦어도 내년봄이면 iPhone이 제손에.... 모르겠습니다. 그전에 못참고 옴니아폰을 사게될지...  

수요일 11월 26, 2008

what is your PUE index of your datacenter?

If your PUE is over 2, there is some big room for improvement. Your datacenter need a relook or rethought or rearchitecture or rebuild or refresh or all.


You may be wondering what I am talking about - what is PUE to start with? 


PUE is a metric becoming very popular - it is a simple and powerful metric of how efficient your datacenter is. It is defined as




  •  PUE(power utilization efficiency) = (IT equipment power + infrastructure power) / (IT equipment power)


Ideally you want this PUE to be 1 meaning that you use power(electricity) only for IT equipment. In reality, however, you can't help but to use electrity for infrastructure as well




  • chiller

  • room cooling

  • ups

  • lighting

  • etc 


Let me ask you again - what is PUE of your datacenter? if you don't know the answer, please start to measure it. Then how do you interpret it? According to EPA (Environmental Protection Agency), the PUE is



  • over 2 : you do need a remedial action right away

  • 1.5 - 2 : reasonably good

  • 1.2 : state of the art (you can brag about...)


Any Sun story here? Yes! Sun recently built a "green" datacenter with PUE in our mind. Here we achieved a PUE of  1.28 which is probably one of the most energy efficient datacenter. We're telling you the story in the following video



If you need any help or further discussion where you can hear Sun's full story and experience/expertise in building the most efficient datacenter in the world, please let me know. I will put you thru the right person in Sun or in the industry.


Be responsible. Be green. Be a good corporate citizen.


미네르바 vs 이네르바 - 내맘대로 증시전망

증시의 향후방향을 둘러썬 비관론과 낙관론이 나오고 있습니다. 미네르바 - 누구인지 모르지만 KOSPI지수가 500까지 붕괴될수 있다는 그리고 부동산은 내년에 반토막 난다는 비관적인 전망으로 일약 스타덤에 오르고 있습니다. 이네르바 - "지금주식을 사면 나중에 큰 부자가 될 수 있다"라는 이명박대통령의 커멘트가 '미네르바'인기에 힘입어 네티즌들이 이네르바로고 일컫고 있네요.


최근 일이년간의 전문가 전망 - 증시, 환율, 경제 - 은 도무지 믿을 수 없었지요. 앞으로도 그 전망을 내놓는 사람의 주장 역시 믿기 어렵습니다. 


따라서 제 생각을 오늘 몇자 적어보고 1년 2년 3년후에 얼마나 맞았나 틀렸는가를 스스로 가늠해보는것도 흥미로울 것입니다. MJ의 세 가지 전망 (아마추어이니 대부분 틀리겠지만...)




  • 증시의 바닥은 2009년에 형성된다. KOSPI 700-900사이에서 최저점을 형성할 것이다.

  • 증시의 전고점인 KOSPI 2000포인트 회복은 반드시 이루어진다. 2010-2011에 이루어진다. 특히 주식은 경기선행성이 매우 강하기 때문에 전세계의 불황이 바닥에 이르렀다는 공감대가 형성되면 빠른속도로 전고점을 회복할 것이다. 이 공감대의 시작은 미국의 경기바닥확인/실물경기 회복 - 다시 말하면 오바마 president elect의 경기진작책이 효과를 발휘하는 시점이 될것이다.

  • 따라서 1000언저리 또는 그 아래에서의 매입은 2-3년을 투자기간으로 볼때 2배의 상승을 가능케하는 대단히 매력적인 투자로 보인다.



미네르바의 주장대로 500까지 하락하면 그때 주식을 산고 전고점 2000이 회복되면 4배의 상승이 됩니다.


그렇다면 바람직한 투자 접근은?




  •  단기 자금은 절대로 주식에 묻지 마라. 향후 6개월 길게 1-2년은 본전건지기 어려울 가능성이 높습니다. 요즈음 회사채/은행채/카드채의 수익율이 꽤 괜찬습니다. 물론 회사가 망하면 하나도 못거지니 조심해야죠. 그런데 big name은 정부에서 망하게 두지는 않을 것이나. big big name 채권은 사도 무방하리라고 과감히 예측해봅니다.

  • 3년을 버틸수 있는 자금은 주식에 들어가자. 


    • 언제 어떻게? 최저점 확인능력이 있다고 자신하는 사람은 최저점을 찾아 들어간다. 최저점확인 또는 예측이 불가능하다고 생각하는 사람은 (it's me!) 조금씩 나누어사자. 또는 적립식으로 과감히 시작한다. (it's what I did recently)


  • 현금을 열심히 비축해서 (대부분 별로 없지만) 그 돈으로 집을 사거나 평수를 키우거나 더 좋은 위치로 이동한다. 부동산가치의 전반적인 하락으로 평수를 키울 절호의 찬스가 바로 지금부터 1-2년내인것 같습니다.



too generic? yes. 어느 누가 이보다 더 자세히 예측할 수 있겠습니까? 요즘같은 불확실성의 시대에는 위와 같은 매우 합리적(?)인 예측조차 빗나갈 가능성이 엄청나죠? 


다만 독자들의 흥미를 더하기 위해 얼마전에 시작한 적립식펀드의 수익율을 3개월마다 제가 여기에 공개해서 적립식투자가 향후 3년이상을 보았을때 적절한 투자인지 저와 독자들에게 투명하게 보여줄까 합니다. I hope I'm right! otherwise I'm losing my net worth. 





목요일 11월 20, 2008

simple rule about the language I use - English / Korean

I intentionally switch between English and Korean for my blog entries - English for wider audience and Korea for Korean audience who I assume would feel comfortable with local language.


I did not pick up the confusion that the audience might feel  until someone advised me to use title language as a guidance for the language of the content. How simple solution is this! I do learn a simple wisdom everyday.


From now on I will use Korea title for Korean content and English title for English content. 

월요일 11월 17, 2008

Painful restructuring at Sun - a new Sun Microsystems

썬에서 근무하면서 썬의 구조조정을 바라보는 것은 참으로 안타깝습니다. 


그러나 어느정도의 성장을 전제로 구성된 조직은 현재의 국제적인 경제여건상 조정이 불가피합니다. 그리고 현재의 국제적 경제여건은 단시일내에 개선되지 않을 것이라는 것이 보편적인 관찰임으로 썬의 비용구조를 매출구조와 연동시키는 구조조정노력은 불가피해보입니다.


이러한 비용구조의 축소와 더불어 썬은 IT진화의 맞춘 미래성장을 위하여 본부의 제품개발팀을 개편합니다. 새 조직은 현재의 한개의 SW조직을 3개의 조직에 나누게 되고, 이 세곳이 썬 본부 제품팀의 핵심을 이루게 됩니다. 세개 PU (product unit)은




  •  Systems Platform : sw중에서 Solaris, virtualization, systems management관련팀은 enterprise server와 storage를 개발하는 Systems Platform으로 흡수됩니다. John Fowler가 맡습니다.

  • Application Platform Software : open source based application platform을 담당합니다. MySQL, Glassfish, OpenSSO, Java등이 여기에 해당됩니다. Anil Gadre가 맡습니다.

  • Cloud computing and Developer Platforms : 개발자들과 고객들이 점점 클라우드 서비스로 이동하고 있습니다. 세계 최고의 클라우드 제공자의 비전을 달성하는 목표를 갖고있습니다. NetBeans, OpenOffice등도 이 그룹에 속합니다. 그리고 network.com도요. Dave Douglas가 맡습니다.



변신하는 썬이 고객분들의 IT진화에 더 큰 도움이 될것을 확신합니다. 감사합니다. 



목요일 11월 06, 2008

Mr. Obama and his speech

Even though I'm not living in America, the world today is too closely connected for us to ignore what's happening outside of country where we're in. Just yesterday we've got a big news of Mr. Obama being a president elect. I strongly hope he will be able to fix a lot of things in USA so that our global economy is getting back to shape soon.


Following is the speech he did at Chicago and let me check again how much he's made a progress when he's leaving White House after serving his term as a President:




If there is anyone out there who still doubts that America is a place
where all things are possible; who still wonders if the dream of our
founders is alive in our time; who still questions the power of our
democracy, tonight is your answer.

/It's the answer told by lines that stretched around schools and
churches in numbers this nation has never seen; by people who waited
three hours and four hours, many for the very first time in their lives,
because they believed that this time must be different; that their voice
could be that difference.

It's the answer spoken by young and old, rich and poor, Democrat and
Republican, black, white, Hispanic, Asian, Native American, gay,
straight, disabled and not disabled - Americans who sent a message to
the world that we have never been a collection of Red States and Blue
States: we are, and always will be, the United States of America.

It's the answer that led those who have been told for so long by so many
to be cynical, and fearful, and doubtful of what we can achieve to put
their hands on the arc of history and bend it once more toward the hope
of a better day.

It's been a long time coming, but tonight, because of what we did on
this day, in this election, at this defining moment, change has come to
America.

I just received a very gracious call from Senator McCain. He fought long
and hard in this campaign, and he's fought even longer and harder for
the country he loves. He has endured sacrifices for America that most of
us cannot begin to imagine, and we are better off for the service
rendered by this brave and selfless leader. I congratulate him and
Governor Palin for all they have achieved, and I look forward to working
with them to renew this nation's promise in the months ahead.

I want to thank my partner in this journey, a man who campaigned from
his heart and spoke for the men and women he grew up with on the streets
of Scranton and rode with on that train home to Delaware, the Vice
President-elect of the United States, Joe Biden.

I would not be standing here tonight without the unyielding support of
my best friend for the last sixteen years, the rock of our family and
the love of my life, our nation's next First Lady, Michelle Obama. Sasha
and Malia, I love you both so much, and you have earned the new puppy
that's coming with us to the White House. And while she's no longer with
us, I know my grandmother is watching, along with the family that made
me who I am. I miss them tonight, and know that my debt to them is
beyond measure.

To my campaign manager David Plouffe, my chief strategist David Axelrod,
and the best campaign team ever assembled in the history of politics -
you made this happen, and I am forever grateful for what you've
sacrificed to get it done.

But above all, I will never forget who this victory truly belongs to -
it belongs to you.

I was never the likeliest candidate for this office. We didn't start
with much money or many endorsements. Our campaign was not hatched in
the halls of Washington - it began in the backyards of Des Moines and
the living rooms of Concord and the front porches of Charleston.

It was built by working men and women who dug into what little savings
they had to give five dollars and ten dollars and twenty dollars to this
cause. It grew strength from the young people who rejected the myth of
their generation's apathy; who left their homes and their families for
jobs that offered little pay and less sleep; from the not-so-young
people who braved the bitter cold and scorching heat to knock on the
doors of perfect strangers; from the millions of Americans who
volunteered, and organized, and proved that more than two centuries
later, a government of the people, by the people and for the people has
not perished from this Earth. This is your victory.

I know you didn't do this just to win an election and I know you didn't
do it for me. You did it because you understand the enormity of the task
that lies ahead. For even as we celebrate tonight, we know the
challenges that tomorrow will bring are the greatest of our lifetime -
two wars, a planet in peril, the worst financial crisis in a century.
Even as we stand here tonight, we know there are brave Americans waking
up in the deserts of Iraq and the mountains of Afghanistan to risk their
lives for us. There are mothers and fathers who will lie awake after
their children fall asleep and wonder how they'll make the mortgage, or
pay their doctor's bills, or save enough for college. There is new
energy to harness and new jobs to be created; new schools to build and
threats to meet and alliances to repair.

The road ahead will be long. Our climb will be steep. We may not get
there in one year or even one term, but America - I have never been more
hopeful than I am tonight that we will get there. I promise you - we as
a people will get there.

There will be setbacks and false starts. There are many who won't agree
with every decision or policy I make as President, and we know that
government can't solve every problem. But I will always be honest with
you about the challenges we face. I will listen to you, especially when
we disagree. And above all, I will ask you join in the work of remaking
this nation the only way it's been done in America for two-hundred and
twenty-one years - block by block, brick by brick, calloused hand by
calloused hand.

What began twenty-one months ago in the depths of winter must not end on
this autumn night. This victory alone is not the change we seek - it is
only the chance for us to make that change. And that cannot happen if we
go back to the way things were. It cannot happen without you.

So let us summon a new spirit of patriotism; of service and
responsibility where each of us resolves to pitch in and work harder and
look after not only ourselves, but each other. Let us remember that if
this financial crisis taught us anything, it's that we cannot have a
thriving Wall Street while Main Street suffers - in this country, we
rise or fall as one nation; as one people.

Let us resist the temptation to fall back on the same partisanship and
pettiness and immaturity that has poisoned our politics for so long. Let
us remember that it was a man from this state who first carried the
banner of the Republican Party to the White House - a party founded on
the values of self-reliance, individual liberty, and national unity.
Those are values we all share, and while the Democratic Party has won a
great victory tonight, we do so with a measure of humility and
determination to heal the divides that have held back our progress. As
Lincoln said to a nation far more divided than ours, "We are not
enemies, but friends...though passion may have strained it must not
break our bonds of affection." And to those Americans whose support I
have yet to earn - I may not have won your vote, but I hear your voices,
I need your help, and I will be your President too.

And to all those watching tonight from beyond our shores, from
parliaments and palaces to those who are huddled around radios in the
forgotten corners of our world - our stories are singular, but our
destiny is shared, and a new dawn of American leadership is at hand. To
those who would tear this world down - we will defeat you. To those who
seek peace and security - we support you. And to all those who have
wondered if America's beacon still burns as bright - tonight we proved
once more that the true strength of our nation comes not from our the
might of our arms or the scale of our wealth, but from the enduring
power of our ideals: democracy, liberty, opportunity, and unyielding hope.

For that is the true genius of America - that America can change. Our
union can be perfected. And what we have already achieved gives us hope
for what we can and must achieve tomorrow.

This election had many firsts and many stories that will be told for
generations. But one that's on my mind tonight is about a woman who cast
her ballot in Atlanta. She's a lot like the millions of others who stood
in line to make their voice heard in this election except for one thing
- Ann Nixon Cooper is 106 years old.

She was born just a generation past slavery; a time when there were no
cars on the road or planes in the sky; when someone like her couldn't
vote for two reasons - because she was a woman and because of the color
of her skin.

And tonight, I think about all that she's seen throughout her century in
America - the heartache and the hope; the struggle and the progress; the
times we were told that we can't, and the people who pressed on with
that American creed: Yes we can.

At a time when women's voices were silenced and their hopes dismissed,
she lived to see them stand up and speak out and reach for the ballot.
Yes we can.

When there was despair in the dust bowl and depression across the land,
she saw a nation conquer fear itself with a New Deal, new jobs and a new
sense of common purpose. Yes we can.

When the bombs fell on our harbor and tyranny threatened the world, she
was there to witness a generation rise to greatness and a democracy was
saved. Yes we can.

She was there for the buses in Montgomery, the hoses in Birmingham, a
bridge in Selma, and a preacher from Atlanta who told a people that "We
Shall Overcome." Yes we can.

A man touched down on the moon, a wall came down in Berlin, a world was
connected by our own science and imagination. And this year, in this
election, she touched her finger to a screen, and cast her vote, because
after 106 years in America, through the best of times and the darkest of
hours, she knows how America can change. Yes we can.

America, we have come so far. We have seen so much. But there is so much
more to do. So tonight, let us ask ourselves - if our children should
live to see the next century; if my daughters should be so lucky to live
as long as Ann Nixon Cooper, what change will they see? What progress
will we have made?

This is our chance to answer that call. This is our moment. This is our
time - to put our people back to work and open doors of opportunity for
our kids; to restore prosperity and promote the cause of peace; to
reclaim the American Dream and reaffirm that fundamental truth - that
out of many, we are one; that while we breathe, we hope, and where we
are met with cynicism, and doubt, and those who tell us that we can't,
we will respond with that timeless creed that sums up the spirit of a
people:

Yes We Can. Thank you, God bless you, and may God Bless the United
States of America./


Cloud Computing - the rising interest in Korea

"한국클라우드컴퓨팅협의회"


 11월4일 상기 협의회를 위한 조그만 모임이 있었습니다. KISTI, 방송통신위원회, 소트트웨어진흥원, leading IT vendors(Sun, Microsoft, IBM, HP등), 학계, 통신사업자,  대형SI, 국내업체등에서 참석하셨습니다.  클라우드컴퓨팅에  대한 현재의 이해, 업체기술동향 그리고 국가차원에서의 대책등을 위한 모임이었습니다.


제가 앞부분에서 기조발언을 통하여 Cloud Computing에 대한 이해 조망을 전달해드렸고 이제 국내에서도 대한 관심을 갖고 있는 토픽임을 깊이 확인할 수 있었습니다.


몇가지 흥미로은 사항들을 적어보면...



  • 클라우드'라는 단어가 들어간 회사분을 만나볼 수 있어서 반가웠습니다. cloud computing network - Clunet (www.clunet.co.kr) 입니다.  저에게 network cloud를 한다고 설명해주셨습니다.

  • 국내 굴지의 SI회사도 이 클라우드컴퓨팅을 변신의 주된 방향으로 생각하고 계시네요.

  • 모 벤더에서는 국내에 벌써 'cloud computing center'를 갖고 있네요.

  • ....


제가 기조연설에서 전달했던 사항중 핵심만 요약드리면...



  • 클라우드 컴퓨팅은 web service의 리더인 Amazon.com, Google, Salesforce.com등의 회사들이 그 동안 쌓은 경험들을 활용하여 여분의 컴퓨팅/저장능력을 외부에 판매하면서 시작된 측면이 있다

  • 대표적인 경우가 amazon.com으로서 이미 2008년10월현재 전체컴푸팅자산의 약3분의2정도가 외부 클라우드컴퓨팅서비스인 EC2 or S3 (elastic compute cloud; simple storage service)에 쓰이고 있습니다. 2008.10월현재


    • S3에 28 billion objects, 70000 object requests/second정도이라고 합니다

    • 가격은 GB당 0.14$정도이네요(월)



클라우드 컴퓨팅은 추상화(abstraction)  or가상화(abstraction)수준에따라서여러형태또는 layer로구성될수있습니다.



  • SaaS : software as a service

  • PaaS : platform as a service

  • IaaS : infrastructure as a service


즉  사용자 (application developer/deployer)의 요구 API (application programming interface)수준에 따라 단순한 infrastructure부터 sw service까지 (예를 들면 Facebook용 application) 다양한 형태가 제공될 수 있습니다.


시간관계상 오늘은 여기에서 마치고 다음기회에는 Sun Microsystems가 갖고 있는 관련 기술/제품/서비스에 대하여 요약해드리겠습니다.


클라우드 컴퓨팅 : 앞으로 10년동안의  컴퓨팅을 많이 바꾸어놓을 큰 흐름임에는 틀림없는것 같습니다.