The CHPID for an FCP device has been set offline, either logically in Linux
or on the hardware.
User response
Find out which CHPID corresponds to the FCP device, for example, with the
lscss command. Check if the CHPID has been set logically offline in sysfs.
Write 'on' to the CHPID's status attribute to set it online. If the CHPID is
online in sysfs, find out if it has been varied offline through a hardware
management interface, for example the service element (SE).