Object Data Manager (ODM)

• Database of system and device configuration information integrated into the OS.
• Types of objects stored in the ODM:

  Predefined

  Devices that AIX has drivers for or knows about, but are not currently installed or active.

  Defined

  Logical devices or drivers which don't map directly to a physical device. This includes network configuration, LVM configuration, and installed software information.

  Available

  A physical hardware device which is installed, configured, and in use.

• Useful commands:
  • lscfg (list configuration)
  • lsdev (list devices)
  • chattr (change device attributes)
  • lsattr (list device attributes)
  • synclvodm (syncronize LVM and ODM information)
  • cfgmgr (configuration manager - scans for devices added since boot)
  • diag (diagnose missing device)
• In order to make any system change permanent, you have to change it in the ODM instead of just at run-time. When in doubt, use SMIT!