De'Longhi

Recently, my wife bought a dehumidifier.
I didn't know which manufacturer she chose, but today I recognized she loves brand things.
It's a De'Longhi, DC125ECO, and here my point is that it's huge and noisy. :(

日本人の英語

日本人の英語 (English of Japanese People)
マーク・ピーターセン(Mark Petersen)
ISBN 4-00-430018-5

Well, I thought I should write about this book in Japanese, my mother tongue.

この本は初版が1988年、まだ僕が大学生の頃に出版されている。
なんで出た当時に、せめて大学院の頃に気づいて読まなかったのだろう。
このblogも、思うところあって英語で書いているわけだけれど、この本を読んでいて、正直、冷や汗が出たというのが正直なところだ。
マーク・ピーターセンの本は、他にも「続日本人の英語」「心にとどく英語」とあるのでどちらも順次読んでみよう。

しかし、それにしても、見事な「日本語」だとしかいいようがない。
最近は日本語の通じない／書けない日本人も多いことだし…

Day 958 : Pretending to be asleep

Recently our daughter pretends to be asleep when we say something she does not like.
I'm not sure whom she learned it from, but anyway the above picture is an example. :o

Twitter 503

Ha ha, I see this screen for the first time.
There must be a storm of tweets in the world. :)

Cloud Computing Expo #1

Today, I went to the 1st Cloud Computing Expo (Cloud Japan) to listen to a talk given by Yuji Chino of NicoNico Video(ニコニコ動画).
Actually, it was the keynote speech of the Data Storage Expo which was joint hosted with that.
That's why, his talk was mainly focusing on storage subsystem perspective of their system.

Here are my notes:
- Nico Video has about 140TB of data in total. Individual video file has 2 or 3 copies including the original.
- At this moment, Nico Video supports only 2 levels of resolution. This is one trade off decision.
- At this moment, Nico Video does not preserve the original uploaded data. This is another trade off decision.
- Nico Video's system uses 3-tier model, edge servers(400), origin servers(100) and storage subsystem(3).
- I'm not sure what is the origin server, but it looks like a kind of cache server.
- Because of their load balancing and multi-tier cache architecture, there is no significant I/O traffic for the storage subsystem even they are using NFS, not FC fabric.
- The edge servers utilizes fast I/O throughput of SSD, for other servers capacity is primarily important.

Sun Intel Net !?

I've been interested in a company named "SUN INTELNET" Corporation which has a big building by the wayside of Tomei Express Way close to Atsugi Interchange.
Today, I succeeded to take a photo of their building finally. :)

Of course, it's because I felt funny the combination of words Sun and Intel, but anyway they look like a logistic related company...

Day 938 : Funny Face?

Haha, recently my daughter wears a funny face when we say something she doesn't like.
The above is a snapshot which my little brother took today. :)