Installation guide

Determining Component Status
5-24 Fault Tolerant System Administration (R1004H) HP-UX version 11.00.03
A device is initially created in the UNCLAIMED state when it is detected at boot time
or when information about the device is found in the /stand/ioconfig file. The
following state transitions can occur:
■ UNCLAIMED to CLAIMED – A driver recognizes the device and claims it.
■ CLAIMED to CLAIMED – A driver reports a soft error on the device and the soft
error weight or threshold values are still acceptable.
■ CLAIMED to ERROR – A device is disabled due to any of the following:
– A hard error occurs on the device.
– A soft error occurs, the soft error count equals the soft_wt variable, and
the mean time between errors is less than the MTBF threshold. For more
information, see “MTBF Calculation and Affects.”
– The system administrator disables the device.
■ ERROR to CLAIMED – A disabled device is reset or enabled. A system
administrator usually resets or enables a card after correcting the error
condition. The system enables a device after disabling it due to a hard error
and the mean time between errors is still greater than the MTBF threshold.
■ CLAIMED to NO_HW – A device does not respond, either because the device has
been removed, has lost power, or the card-cage has been opened.
■ NO_HW to CLAIMED – A previously nonresponsive device is recognized by the
software. This transition can occur when a removed device is replaced, or
when power to the card-cage is restored.
■ UNCLAIMED to NO_HW – No driver is present, and no device is found at the
position the node represents. This can occur if no device is installed, or if
power to the device is lost.
■ NO_HW to UNCLAIMED – No driver is present, but a device is found at the
position the node represents. This can occur if a device is installed, or if lost
power to the device is returned.
■ ERROR to NO_HW – A disabled device is removed from the system. The node,
the node-to-driver link, and the instance number of the device still exist.