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Rebooting nodes

Rebooting nodes

Rebooting of (virtual) OpenStack instances is done via

$ openstack server reboot [--soft|hard] <instance>

For bare metal instances managed by the IPMI driver, the command is also available and will translate to a sequence of ipmitool commands:

  • change the power state
  • wait for the node to be powered off
  • switch the node on

The change of the power state will be via ACPI, i.e. chassis power soft on --soft (and also if no parameter is specified) and chassis power off on --hard.

Note that Ironic may fall back from chassis power soft to chassis power off in case the former does not work.

Last update: November 22, 2021