ZFS and multi-pool shared spares

One of the features of ZFS's spares handling is that if you havemultiple pools, you can share spare disks between them. This lets youhave a single global pool of spares that are used by whichever poolneeds them, or more complex schemes if you really want them (you mightin, say, a SAN environment).

Our experience is that you want to be really cautious around multi-poolshared spares, because they're buggy and they don't necessarily workvery well in practice in


不承受他人無緣無故的惡意

昨天在立法會外某人的仇恨面容讓我覺得非常訝異,之後我並為此生氣了半小時以上。次日醒來仍然生氣。不想在facebook share,以免麻煩。只能在自己的blog抒發一下。我生氣的原因:

1. 仇恨的人根本連自己不滿什麼都說不清;

2. 我

我愛Kindle

去年初,老婆送我一部Kindle2,是生日禮物,「氹」得我非常開心。自此我幾乎天天用它來看書或文章,出外旅遊更是必備;以往旅遊最多只能帶兩三本書,現在我的Kindle有五十多本書(《莎士比亞全集》我只當是一本),卻只有一

One reason why I prefer browser windows to browser tabs

I recently read about a study of tabbed browsing ,and it inspired some reflective thoughts. I am well out on the 'manythings open at once' curve of browser users, but unlike almost everyonein the study, I do almost all of it in separate windows instead of intabs. I've touched on this before , butI feel like taking another shot at one specific aspect of it, which ishow one deals with inactive browser sessions.

(By 'browser session' here I mean one window


給臨時球迷的話

雖然大家很憤怒,但事實上,關於每個地球人都有權利看免費世界杯,確實沒有可靠理由去支持。一來沒有份出席決賽週的國家多的是,二來就算有份出賽,世界盃依然是足總們自己之間的遊戲,轉播的利潤他們沒有義務要分給

Elevator to the Gallows("通往斷頭台的電梯") ----- 佈局一流!
























Film : Ascenseur pour l'échafaud (1958) (France)
Directed by Louis Malle
Written by Noël Calef/ Louis Malle/ Roger Nimier
Starring Jeanne Moreau/ Maurice Ronet/ Georges Poujouly/ Yori Bertin
Music by Miles Davis
Duration : 88mins
Continue reading...

閱讀紀錄

從2001年開始,我便每年都有一張清單紀錄自己看過的書和期刊或文集裏的文章(一般雜誌文章不計),只是順閱讀次序羅列項目,不加評語或任何排行。目的?就是留個紀錄吧了,好讓將來記不起自己看過甚麼書的時候,

The Irony of the Office

From Seth Godin:

Factories used to be arranged in a straight line. That's because there was one steam engine, and it turned a shaft. All the machines were set up along the shaft, with a belt giving each of them power. The office needed to be right next to this building, so management could monitor what was going on.

Read on...


When Harry Met Sally



勝過千言萬語

這陣子,也會在B & L的網頁上到處逛,看看其他人生命中的某個高清時刻。

基於設計,在分頁上,只會看到文章題目的小字,突出的是相片。

我也是被相片吸引了,按進去再細看文字。

有些時候,真的,一張相片勝過千言萬語