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This is usually caused by cloning the device image resulting in duplication of the UUID value which should be unique. In that case you can either disconnect one of the devices or reformat it.
For some reason we were unable to locate a disklabel on a disk that the kernel is reporting partitions on. It is unclear what the exact problem is. Please file a bug at http://bugzilla.redhat.com
Either restore the disklabel to a completely working state or remove it completely.
Hint: parted can restore it or wipefs can remove it.
Rename one of the volume groups so the names are distinct.
Hint 1: vgrename accepts UUID in place of the old name.
Hint 2: You can get the VG UUIDs by running 'pvs -o +vg_uuid'.
zFCP device %s not found, not even in device ignore list.
Could not set zFCP device %(devnum)s online (%(e)s).
Could not add WWPN %(wwpn)s to zFCP device %(devnum)s (%(e)s).
WWPN %(wwpn)s not found at zFCP device %(devnum)s.
Could not add LUN %(fcplun)s to WWPN %(wwpn)s on zFCP device %(devnum)s (%(e)s).
LUN %(fcplun)s at WWPN %(wwpn)s on zFCP device %(devnum)s already configured.
Could not read failed attribute of LUN %(fcplun)s at WWPN %(wwpn)s on zFCP device %(devnum)s (%(e)s).
Failed LUN %(fcplun)s at WWPN %(wwpn)s on zFCP device %(devnum)s removed again.
Could not correctly delete SCSI device of zFCP %(devnum)s %(wwpn)s %(fcplun)s (%(e)s).
Could not remove LUN %(fcplun)s at WWPN %(wwpn)s on zFCP device %(devnum)s (%(e)s).
Could not remove WWPN %(wwpn)s on zFCP device %(devnum)s (%(e)s).
Could not set zFCP device %(devnum)s offline (%(e)s).
Unable to change iSCSI initiator name once set
Must provide an iSCSI initiator name
No initiator name set
No iSCSI nodes discovered