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Unmanaging a chassis

You can remove a chassis from management by Lenovo XClarity Administrator. This process is called unmanaging. After the chassis is unmanaged, you can log in to the CMM for the chassis by using the local CMM user accounts.

Before you begin

You can enable XClarity Administrator to automatically unmanage devices that are offline for a specific amount of time. This is disabled by default. To enable the automatic unmanagment of offline devices, click Hardware > Discover and Manage New Devices from the XClarity Administrator menu, and then click Edit next to Unmanage offline devices is Disabled. Then, select Enable unmanage offline devices and set the time interval. By default, devices are unmanaged after being offline for 24 hours.

Before you unmanage a chassis, ensure that there are no active jobs running against any devices that are installed in the chassis.

When Call Home is enabled in XClarity Administrator, Call Home is disabled on all managed chassis and servers to avoid duplicate problem records from being created. If you intend to discontinue using XClarity Administrator to manage your devices, you can re-enable Call Home on all managed devices from the XClarity Administrator in lieu of re-enabling Call Home for each individual device at a later time (see Re-enabling Call Home on all managed devices).

About this task

When you unmanage a chassis, XClarity Administrator performs the following actions:
  • Clears the configuration used for centralized user management.
  • Removes the CMM security certificate from the XClarity Administrator trust store.
  • If Encapsulation is enabled on the device, configures the devices firewall rules to the settings before the device was managed.
  • Removes access to the NTP server from the CMM.
  • Removes the CIM subscriptions to the CMM from the XClarity Administrator configuration so that XClarity Administrator no longer receives events from that chassis.

When you unmanaged a chassis, XClarity Administrator retains certain information about the chassis. That information is reapplied when you manage the same chassis again.

When you unmanage a chassis, events that were sent from the chassis components are discarded. You can retain these events by forwarding the events to an external repository, such as a syslog (see Forwarding events).

All demo devices that are optionally added during initial setup are nodes in a chassis. To unmanage the demo devices, unmanage the chassis using the Force unmanage even if the device is not reachable option.


To unmanage a chassis, complete the following steps.

  1. From the XClarity Administrator menu bar, click Hardware > Chassis to display the Chassis page.
  2. Select one or more chassis from the lists of managed chassis.
  3. Click Unmanage Chassis. The Unmanage dialog is displayed.
  4. Optional: Select Force unmanage even if the device is not reachable.
    When unmanaging demo hardware, ensure that you select this option.
  5. Click Unmanage.
    The Unmanage dialog shows the progress of each step in the unmanagement process.
  6. When the unmanagement process is complete, click OK.

After you finish

After the unmanage process is completed, you can log in to the CMM using the local CMM user accounts. If you do not remember the user names or passwords for any local CMM user accounts, reset the CMM to factory defaults to log in to the CMM. For information about resetting the CMM to factory defaults, see CMM Reset in the Flex Systems online documentation in the CMM product documentation.