Rethinking my views of Fibrechannel

The more I look at Fibrechannel's competitors , the more attractive Fibrechannel looks. Afterall, FC's only real problem is that it costs a lot of money, and eventhat may be changing as FC vendors come to their senses; we recentlygot a quite reasonable quote from a storage vendor.

(Well, FC switch vendors are still insane, but if you are willing togo for second-hand equipment you can apparently get 1 and 2 gigabit FCswitches for quite cheap as people upgrade to 4


Choose Your Attitude At Work

Fish! A Remarkable Way to Boost Morale and Improve Results

Choose Your Attitude:

“There is always a choice about the way you do your work, even if there is not a choice about the work itself.”

“We choose the attitude we bring to our work.”

人生有三分一(或更多)的時間花在工作上,如果你不能快快樂樂上班去,你怎可能指望快快樂樂回家來?

甚麼外在客觀因素都可


Weekly spam summary on September 8th, 2007

This week, we:

  • got 10,541 messages from 243 different IP addresses.
  • handled 22,006 sessions from 1,956 different IP addresses.
  • received 515,114 connections from at least 130,401 different IPaddresses.
  • hit a highwater of 10 connections being checked at once.

Connection volume has jumped significantly from last week and session volume is up, which suggests thatour simplistic greylisting stuff is no longer working quite


椰子樹下

椰子樹下

上司 Eric 呷一口減肥茶,蠱蠱惑惑地說:「Daisy,剛剛pitch到一單M&A,日本人要收購海南島一個度假區。知你喜歡陽光海灘,這單deal簡直為你度身訂造。」

我抗議:「Eric,我手頭上已經有兩單M&A和三單 IPO,有兩單還快

My view of what 'strongly typed' means

I was recently reading this slide from a presentation , which set me tothinking about the whole issue of what makes me consider something to be'strongly typed'.

In high-level languages, I have a pragmatic definition: if 2 + "3" succeeds, especially if it is 5, your language is weakly typed. Thus, awk and Perl are weakly typed but Python and Ruby are strongly typed.

(I have to restrict this to high-level languages because this works inC, although it does


花時間,但有沒有花腦筋?


一個成績優良討人喜歡的中學生,在某個考試期間但剛剛“失戀”的晚上跟我說:“其實讀書真的不知有什麼用,我保持科科合格又有什麼用,我的英文比數學高分又有什麼用,這些事情根本不能讓我開心,教我們的老師本身也

When you don't want RAID-5

Here's a paradox that we only realized recently: in some situations,using RAID-5 can be less reliable overall than using no RAID at all.

This comes about because while RAID-5 preserves your data over asingle-drive failure, it loses all your data if there is ever a doubledrive failure.

Our specific case is a disk-based incremental backup system. Right now aday's backups take up about a third of a disk, and we have it set up soeach day


都喜歡聽蔡寶

文明單位:大學
嘉賓:蔡寶瓊

忙到沒有時間update,書當然也沒有看完。雅斯培的《大學的理念》裡面堅定的大學價值追求,現在看來像是天方夜譚,耳際不斷想起「out左!不實際!」的諷嘲——可是,若100年不到的理念就已經

明報世紀版隔週二:自尋短見

需要時間調整來重新適應字數,不過總算多了機會寫論述文章。方文山想寫很久了(接近一年!),這裡仍然未完全開展;關於不是蘋果的故事,更是希望有機會再說好一點。

年輕三種

所謂年輕的末梢,意思是全間卡拉ok裡最老

Features that I wish ZFS had

This is not counting features that Sun has already said they are goingto put in someday, like the ability to remove vdevs from a ZFS pool.The motivation for many of these wishes is good long term storagemanagement , something that ZFS iscurrently weak at.

  • the ability to migrate a filesystem from storage pool to storagepool (on the same system) without user-visible downtime or lockups.In theory this ought to be doable, since ZFS is abstracting everythinganyways.

  • the ability to control and change what vdevs