= 2009-04-15 =

 * DRBL Server NFS 效能調校技巧
{{{
/etc/default/nfs-kernel-server
# Number of servers to start up
RPCNFSDCOUNT=25

# Runtime priority of server (see nice(1))
RPCNFSDPRIORITY=0
}}}
 * [內部課程] Xen 虛擬化叢集建置與管理
 * [計畫] 投稿 !LinuxCon 2009 developer session presentation
 * [計畫] DRBL Hadoop 叢集設定
 * [專案] 從 /proc/ioports 可以理解機器的 I/O 位址分配情形
{{{
jazz@drbl:~$ cat /proc/ioports
0000-001f : dma1
0020-0021 : pic1
0040-0043 : timer0
0050-0053 : timer1
0060-0060 : keyboard
0064-0064 : keyboard
0070-0073 : rtc0
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : 0000:00:1f.2
  0170-0177 : ata_piix
01f0-01f7 : 0000:00:1f.2
  01f0-01f7 : ata_piix
0290-029f : pnp 00:01
  0290-0294 : pnp 00:01
0376-0376 : 0000:00:1f.2
  0376-0376 : ata_piix
0378-037a : parport0
03c0-03df : vga+
03f2-03f5 : floppy
03f6-03f6 : 0000:00:1f.2
  03f6-03f6 : ata_piix
03f7-03f7 : floppy DIR
03f8-03ff : serial
0400-047f : 0000:00:1f.0
  0400-0403 : ACPI PM1a_EVT_BLK
  0404-0405 : ACPI PM1a_CNT_BLK
  0408-040b : ACPI PM_TMR
  0410-0415 : ACPI CPU throttle
  0428-042f : ACPI GPE0_BLK
  0460-047f : iTCO_wdt
0480-04bf : 0000:00:1f.0
04d0-04d1 : pnp 00:01
0500-051f : 0000:00:1f.3
  0500-051f : i801_smbus
0800-087f : pnp 00:01
0880-088f : pnp 00:01
0cf8-0cff : PCI conf1
c000-cfff : PCI Bus 0000:01
  c000-c01f : 0000:01:00.0
    c000-c01f : e1000e
  c100-c11f : 0000:01:00.1
    c100-c11f : e1000e
d000-dfff : PCI Bus 0000:02
  d000-d0ff : 0000:02:05.0
    d000-d0ff : r8169
e000-e01f : 0000:00:1d.0
  e000-e01f : uhci_hcd
e100-e11f : 0000:00:1d.1
  e100-e11f : uhci_hcd
e200-e21f : 0000:00:1d.2
  e200-e21f : uhci_hcd
e300-e31f : 0000:00:1d.3
  e300-e31f : uhci_hcd
e400-e407 : 0000:00:02.0
f000-f00f : 0000:00:1f.2
  f000-f00f : ata_piix
}}}

 * Map of Science - 各類科學學門的關聯圖
   * [[Image(http://www.lanl.gov/news/albums/science/PLOSMapOfScience.jpg, width=800)]]

== Virtualization ==

 * [http://www.virtualization.info/2009/04/r-accelerating-vms-live-migration-by-4.html R&D: Accelerating VMs live migration by 4-10x and beyond] - VMWare 的研發，讓 Live Migration 可以更快速

== Cloud Computing ==

 * [http://www.scribd.com/doc/9915894/CITTIO-Cloud-Monitoring-Solution-Position-Paper CITTIO] - 一間以 Cloud Monitoring 為訴求的公司，目前有開放出[http://sourceforge.net/projects/zeppelin/ Zeppelin]這套 Cloud Management System。
 * [http://www.annelido.us/ Annelidous] - The flexible Cloud Management Framework (CMF) - 還在開發中的雲端運算管理架構