2010-09-03

Lustre

• 兩個我常用在管理 lustre 的 .bash_aliases 函數

  function check_lustre
  {
    dsh -a "mount -t lustre -l" | grep biofs-OST | awk '{ print $7 }' | sort -n | nl
    sudo lctl dl | grep osc
  }
  function disable_lustre
  {
    if [ "$1" == "" ]; then echo "disable_lustre <OSTID>"; return 0; fi
    for i in `sudo lctl dl | grep osc | grep "$1" | awk '{ print $1 }'`
    do
      echo "lctl --device $i deactivate"
      sudo lctl --device $i deactivate
    done
    sudo dsh -a lctl dl | grep osc | grep "$1"
  }
  

munin

• 先前裝 munin 都還蠻方便的，可是最近在 debian testing 上測試，就一直出現 permission denied。今天終於知道原因了，因為新版的 munin 是產生在 /var/cache/munin/www 而非 /var/www/munin，此外在 apache 設定上預設也限制只能從 127.0.0.1 才能看。所以得把那行換掉。

  munin

  @@ -1 +1 @@
   Alias /munin /var/cache/munin/www
   <Directory /var/cache/munin/www>
           Order allow,deny
  -        Allow from localhost 127.0.0.0/8 ::1
  +#        Allow from localhost 127.0.0.0/8 ::1
  +        Allow from all
           Options None

netboot.me

• 使用 netbootme.iso 啟動 Clonezilla Live CD
  • First, I boot my VirtualBox VM from netbootme.iso and press any key to see the options
  • 
  • Second, select "boot a config directory directly"
  • 
  • Here is a boot config that I had create, the id number of this config is 254001
  • 
  • Enter the config id number with 254001
  • 
  • After download clonezilla ISO image from the INTERNET, you will see it boot into Clonezilla Live as well.
  • 
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