starlingx/docs
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docs/doc/source/system_configuration/kubernetes/converting-a-duplex-system-to-direct-connection.rst
Ron Stone f125a8b892 Remove spurious escapes (r8,dsR8) 
This change addresses a long-standing issue in rST documentation imported from XML.
That import process added backslash escapes in front of various characters. The three
most common being '(', ')', and '_'.
These instances are removed.

Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: Id43a9337ffcd505ccbdf072d7b29afdb5d2c997e
2023-03-01 11:19:04 +00:00

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Convert a Duplex System to Direct Connection

On a system configured to use switch-based network connection for the management and cluster host networks, you can convert to direct (peer-to-peer) connection.

The connection type is initially configured at installation. You can change it at any time. You must use the CLI to make the change.

  1. Use the system modify command to specify direct connection (duplex-direct).

    ~(keystone_admin)]$ system modify --system_mode=duplex-direct

    This raises Config-out-of-date alarm messages on both controllers.

  2. Lock and then unlock the standby controller to update its configuration.

    Wait for the controller to be reported as Unlocked, Available, and Online, and its Config-out-of-date alarm message to be cleared.

  3. Swact the controllers.

  4. Lock the new standby controller.

  5. Disconnect the management and infrastructure cables from the switch.

    This raises Port failed and Interface failed alarms on the active controller for the management and infrastructure interfaces.

  6. Reconnect the cables in a peer-to-peer configuration.

    Wait for the network interface alarms to be cleared.

  7. Unlock the standby controller to update its configuration.

    Wait for the controller to be reported as Unlocked, Available, and Online, and its Config-out-of-date alarm message to be cleared.

The system is now reconfigured to use direct connections for the internal networks.