Since the beginning of the last year, I've been working on virtualization issues at work, and I did some research works on VMware ESX Server recently.
About 1 year ago when I worked on Xen, the biggest problem was resource monitoring.
I got similar problem this time too, but the situation was better than that time.
VMware provides several SDKs for management such as VMware Guest SDK.
Using VMware Guest SDK, we can collect basic resource usage information on guest operating systems (Linux or Windows). This feature is quite useful I think, and
I wrote a small statistics collector for Linux guests using the SDK above.
It's available here, and I hope the small tool is useful for people working on VMware ESX Server. :)
At this moment, the tool I wrote is beta status and almost no documentation. :(
I built the tool and did some basic tests using VMware-GuestSDK-3.5.0-64557.tar.gz available in the above URL.
BTW, the download URL will be moved to Kusanagi Project as soon as enough tests have done.
Monday, March 31, 2008
Sunday, March 30, 2008
Day 174 : Baby Food
A Defective Component
As I wrote before, last November a HDD of my desktop PC failed and I bought a new one.
Recently, I read an interesting article. According to the author, as HDD capacity got extremely bigger than before, some HDD vendors sometimes omit physical formatting. Thus, we often see
defective sectors after going into production phase. :(
In other word, it might be possible to use normally those drives which once looked defective if we do physical format by ourselves.
So, I tried. :)
I downloaded "Drive Fitness Test Tool" from Hitachi GST web page, and the 2 pictures below show the consequence.
In my 160GB SATA driver case, it took about 3 hours.
Indeed a defective drive ... orz
Recently, I read an interesting article. According to the author, as HDD capacity got extremely bigger than before, some HDD vendors sometimes omit physical formatting. Thus, we often see
defective sectors after going into production phase. :(
In other word, it might be possible to use normally those drives which once looked defective if we do physical format by ourselves.
So, I tried. :)
I downloaded "Drive Fitness Test Tool" from Hitachi GST web page, and the 2 pictures below show the consequence.
In my 160GB SATA driver case, it took about 3 hours.
Indeed a defective drive ... orz
Wednesday, March 26, 2008
Shimoyame Case : The Last Testimonies
Shimoyama Case : The Last Testimonies (下山事件 -- 最後の証言)
Tetsutaka Shibata
ISBN 978-4-396-33367-6
Shimoyama Case is one of the biggest mystery in the post World War II history of Japan.
There are so many books and research works on the case, but the view point of this book's author is unique and interesting.
He is a grand son of a possible person involved, and the main reason that drove him to investigate the case deeply was to know if his grand father was really guilty or not.
BTW, the case happened in 1949 during occupation by GHQ. Thus, you can find a lot of official reports in The National Archives of the United States:
http://arcweb.archives.gov/arc/basic_search.jsp
Friday, March 21, 2008
Innocent Japanese
Tuesday, March 18, 2008
One Page Management
One Page Management
Riaz Khadem and Robert Lorber
ISBN 978-4-492-55600-9
I didn't know this method, but it seems to be quite old and established one.
For example, Google gave me about 82,000,000 links for "one+page+management" query.
I'm wondering if this method works for a colleague of mine because the focus report and the performance report look like very good for concentration.
Hey, Furuta-kun!
Are you reading?
It's you. :o)
Sunday, March 16, 2008
Try Not to Develop Your Staff
Try Not to Develop Your Staff (部下は育てるな! 取り替えろ!!)
Keita Nagano
ISBN 978-4-334-93421-7
This is an interesting book.
BTW, the English title expresses only the first half of the original Japanese title.
The second half says, "Change (unprofessional staff)". :o
The author says managers should fire staff who can't think logically.
But, for me, people who really should be fired are those who use perfect logic but do not have sense of choosing principles. :(
Monday, March 03, 2008
Day 147 : Girl's Day
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