Xen 於 OpenNEbual 的配置

1. 前提

• 已安裝 Xen 和 Xen Kernel
• /etc/init.d/xend 可以正常執行
• oneadmin 使用者可以執行 Xen 相關的指令

  $ sudo vim /etc/sudoers
  %xen    ALL=(ALL) NOPASSWD: /usr/sbin/xm *
  %xen    ALL=(ALL) NOPASSWD: /usr/sbin/xentop *
  
  $ sudo /opt/drb/sbin/drbl-cp-host /etc/sudoers /etc/sudoers
  

2. Xen Driver 的檔案

• 主要有以下4個：
  • $ONE_LOCATION/lib/mads/one_vmm_xen : Shell script wrapper to the driver itself. Sets the environment and other bootstrap tasks.
  • $ONE_LOCATION/lib/mads/one_vmm_xen.rb : The actual XEN driver.
  • $ONE_LOCATION/etc/vmm_xen/vmm_xenrc : environment setup and bootstrap instructions
  • $ONE_LOCATION/etc/vmm_xen/vmm_xen.conf : set here default values for XEN domain definitions.

3.Xen Driver 的配置

• 告訴 ONE ，使用的 Hypervisior 是 Xen

  $ sudo vim $ONE_LOCATION/etc/oned.conf
      IM_MAD = [
          name       = "im_xen",
          executable = "one_im_ssh",
          arguments  = "im_xen/im_xen.conf",
          default    = "im_xen/im_xen.conf" ]
  	
      VM_MAD = [
          name       = "vmm_xen",
          executable = "one_vmm_xen",
          default    = "vmm_xen/vmm_xen.conf",
          type       = "xen" ]
  
  

• 上面設定檔的 IM 是 Information Manager，VM 是 Virtualization Managers