多得《基地》系列，上一年很多經典科幻作品也重出江湖，我本身不是好讀小說的人，但也因此而看了不少。其中 Arthur C. Clarke 的「太空漫遊」系列更是一次過四本再出：《2001》、《2010》、《2061》和《3001》
Another aphorism of system administration
Noticing when something shows up is easy; detecting when it goes awayis hard.
Like all aphorisms, this has exceptions. And if you want to see it thatway, it's a corollary of an earlier aphorism .
(An aphorism brought to mind as I contemplate our DHCP configurationfiles and wonder just how many of those Ethernet addresses are currentlymouldering in a dump somewhere.)
What I currently know about Fibrechannel versus iSCSI versus AoE
We're planning a significant capacity increase for our local SANstorage pool, which means that we've been trying to figure out whichSAN technology we want to go with. We don't have high performance IOneeds, so we're going for bulk storage: large SATA disks in RAID 5 insome sort of SAN RAID controller. We plan to use Solaris 10 on x86for our NFS servers that will use the SAN, with DiskSuite forfailover. DiskSuite has to own full disks
Weekly spam summary on February 17th, 2007
This week, we:
- got 15,925 messages from 244 different IP addresses.
- handled 23,465 sessions from 1,341 different IP addresses.
- received 244,268 connections from at least 75,016 different IPaddresses.
- hit a highwater of 16 connections being checked at once.
This is about the same as last week .The per day figures show some significant fluctuations:
| Day | Connections | different IPs |
| Sunday | 36,6 |
Why we do NFS fileserving with a SAN
Our storage infrastructure here has a number of NFS servers sittingin front of a pool of SAN RAID storage boxes using commodity SATAdisks. This is a somewhat unusual setup for a comparatively smallenvironment like ours; a far more common setup is to have the disksdirectly attached to the fileservers.
We have a SAN setup for a simple reason: failover between the NFSserver machines . We consider the server machines to be the things mostlikely to suffer failures, either hardware or software, or just to needdowntime. With
恭喜發財
恭喜發財
寂然世界恭祝大家發財
Programming fun
Programming fun is spending a couple of hours writing, revising, andtuning a DWiki feature that I'm not sure I'm actually going to like wellenough to keep.
I'm serious, not being sarcastic; I like programming, but not all ideasfor improving a program pan out. An idea that seems great in my mind canbe less attractive once I've made it concrete and explored all of thebits that I could gloss over when it was just thought-stuff. So I can
景點（懲罰一直更新）
先施大廈裡的一代景點已經開始解體，未看過它的狀態的朋友，只能從日後上載的照片中理解了。
只是
老實說，我已經pack了一個紅白藍的衫和5盒書（一個白膠箱、2個a4紙盒2個手提電腦紙盒）2個鞋盒的vcd，屋裡的狀態幾
只是
老實說，我已經pack了一個紅白藍的衫和5盒書（一個白膠箱、2個a4紙盒2個手提電腦紙盒）2個鞋盒的vcd，屋裡的狀態幾
QOTD: There are three types of authentication
There are three types of authentication :
They are:
- Something you've lost,
- Something you've forgotten, and
- Something you used to be.
The full entry includes an illustrative story and bonus comments (and,unfortunately, a certain amount of comment spam, at least right now).
(From Richard Johnson of river.com.)
I hate hardware (Dell 2950 edition)
The Dell 2950 is a decent 2U server that has recently started beingpopular around here; like most recent servers, it has dispensed withPS/2 connectors and only has USB for the keyboard and mouse. It has fourUSB connectors, two on the front and two on the back.
If you plug your keyboard into the back USB connectors, the Ubuntu6.06.1 x86_64 server kernel hangs with ' BUG: soft lockup detectedon CPU#0!