中年危機
Why LVM snapshots should really have hooks into filesystems
Like a lot of block-level logical storage managers, LVM has a basicread-only snapshot facility. A remapping storage manager makes it easyto implement snapshots, since basically all you do is remap blocks onwrite (although the devil is in the details, as always). And like mostof them with snapshot facilities, I believe that LVM lacks hooks intofilesystems to tell them about an impending snapshot.
You might reasonably ask why the filesystem should care about this.The simple answer is that you really want
Hewlett
The story goes that its cofounder William Bill Hewlett stopped off one weekend at a company storeroom to pick up a tool, only to find that there was a lock on the tool bin. This was, as a matter of fact, contrary to the explicit practice the Hewlett-Packard company had established from the very beginning to keep all
Some reasons why I like vi
I will reluctantly admit it: I sort of like vi. It is a grudging like,for vi is not my favorite editor and it has its weaknesses ,but still, there are things about vi that I keep finding cool and niceand attractive. One significant reason is vi's regularity and what Iwill call 'composability'.
(Let me note that by 'vi' I mean the entire vi family .)
To make up terminology, vi more or less has two sorts of commands:commands that
Go to School on Sunday
星期天, 別人呼呼大睡到日上三竿, 我卻要跨區由屯門遠赴石峽尾, 上四個半小時的課. 老實說, 感覺還不錯.
兩 年多來, 一星期三晚的上課日子, 令體力開始見底. 部份同學被編排到星期六下午上課, 個人認為星期六是用來輕
Why XHTML is doomed, at least in its strict validation form
Right now, if you are doing 'XHTML' there are basically three optionsfor what is actually going on:
- you are smart and clever and knowledgeable about XHTML (and masochistic ).
- your pages are actually
text/htmlpages and thus not real XHTML( regardless of what the validators may tell you ). - your pages are not displaying in IE.
The vast majority of people doing 'XHTML' are in the second category.(The third category is not popular for the obvious reason.)
Almost all of the
世上唯一付出與收穫成正比的事
撇除天災人禍不計。
各有前因莫羨人，別怨人家天生天香國色，自己則是醜小鴨要投放大量資源才可扭轉困局。
或許，人家前生修橋補路，你就殺人放火呢。
烽煙與和平
嘉賓：朱凱迪、陳秉鳳
2. 文明單位：零八憲章
嘉賓：潘嘉偉
零八憲章 。請聯署。是廖偉棠在《今天》的朗誦會上，說大陸的朋友傳來短訊，說「請『今天』的詩人紀念劉曉波，因為他是代我們被