Use this command to configure an HAU default mode for the device.
| never | Specifies that a standard non-HA firmware upgrade is always performed. The default HAU default-mode is never. |
| if-possible | Specifies that a high availability upgrade will only be performed if HAU preconditions such as HAU image compatibility are met. Otherwise, a non-HA standard firmware upgrade is performed. See the set boot system usage section for HAU precondition details. |
| always | Specifies that a high availability upgrade will be performed if all HAU preconditions are met. Otherwise, no firmware upgrade is performed. See the set boot system usage section for HAU precondition details. |
The HAU default mode defaults to never. The standard system boot mode is used.
All command modes.
This command sets the HA firmware upgrade default mode for the device. By default, the standard system boot upgrade method is used.
Note
Specifying a boot mode option (standard or high-availability), using the set boot system, overrides any HAU default mode setting. If the boot mode option is set to standard, HAU boot behavior is the same as the never default mode setting. If the boot mode option is set to high-availability, HAU boot behavior is the same as the always default mode setting.When the if-possible default mode is set, a firmware upgrade will always be performed. If all HAU preconditions are met, a high availability upgrade is performed, otherwise a non-HA standard upgrade is performed. See the usage section of set boot system for HAU precondition details.
When the always default mode is set, a firmware upgrade is only performed if all HAU preconditions are met. This setting assures that if a firmware upgrade can be performed, it will always be an HA upgrade. This setting prevents your system from being taken down by a standard system upgrade.
This example shows how to set the HAU default mode to always:
System(rw)->set boot high-availability default-mode always System(rw)->
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