IBM zfcp luns unavailable with error "No handle is available"

Issue

• IBM zfcp luns not showing up within the operating system as expected
• There are zfcp events of "No handle is available":

kernel: zfcp 0.0.802b: No handle is available for LUN 0x4081400e00000000 on port 0x500507630a1050ff
kernel: zfcp 0.0.802b: No handle is available for LUN 0x4081400e00000000 on port 0x500507630a1050ff
kernel: zfcp 0.0.802b: No handle is available for LUN 0x4081400f00000000 on port 0x500507630a1050ff
kernel: zfcp 0.0.802b: No handle is available for LUN 0x4081400f00000000 on port 0x500507630a1050ff
kernel: zfcp 0.0.802b: No handle is available for LUN 0x4081401000000000 on port 0x500507630a1050ff
kernel: zfcp 0.0.802b: No handle is available for LUN 0x4081401000000000 on port 0x500507630a1050ff

• With increased scsi logging enabled, the kernel reports that scanning for new luns is aborted following a "No handle" event.

kernel: scsi 4:0:1:1073823873::40014081->40814001.00000000: scsi scan: INQUIRY pass 1 length 36
kernel: scsi 4:0:1:1073823873::40014081->40814001.00000000: scsi scan: INQUIRY failed with code 0x70000
kernel: scsi 4:0:1:0::00000000->00000000.00000000: Unexpected response from lun 1073823873 while scanning, scan aborted