Looking my adapters I found fcs0 in diagnose state
# lsdev -Cc adapter
ent0 Available 21-08 IBM 10/100 Mbps Ethernet PCI Adapter (23100020)
ent1 Available 1A-08 10/100 Mbps Ethernet PCI Adapter II (1410ff01)
ent2 Available 14-08 Gigabit Ethernet-SX PCI Adapter (14100401)
ent3 Available 37-08 10/100 Mbps Ethernet PCI Adapter II (1410ff01)
ent4 Available 27-08 Gigabit Ethernet-SX PCI Adapter (14100401)
ent5 Available 3A-08 Gigabit Ethernet-SX PCI Adapter (14100401)
fcs0 Diagnose 2A-08 FC Adapter
fda0 Available 01-D1 Standard I/O Diskette Adapter
mg20 Available 2D-08 GXT130P Graphics Adapter
ppa0 Available 01-R1 CHRP IEEE1284 (ECP) Parallel Port Adapter
sa0 Available 01-S1 Standard I/O Serial Port
sa1 Available 01-S2 Standard I/O Serial Port
sa2 Available 01-S3 Standard I/O Serial Port
sa3 Available 01-S4 Standard I/O Serial Port
scsi0 Available 11-08 Wide/Ultra-2 SCSI I/O Controller
scsi1 Available 11-09 Wide/Ultra-2 SCSI I/O Controller
scsi2 Available 17-08 Wide/Fast-20 SCSI I/O Controller
sioka0 Available 01-K1-00 Keyboard Adapter
siokma0 Available 01-K1 Keyboard/Mouse Adapter
sioma0 Available 01-K1-01 Mouse Adapter
# lsdev -C | grep fsc0
fcs0 Diagnose 2A-08 FC Adapter
Run the ucfgdiag to change this state
# /etc/methods/ucfgdiag -l fcs0
Looking devices
# lsdev -Cc adapter
ent0 Available 21-08 IBM 10/100 Mbps Ethernet PCI Adapter (23100020)
ent1 Available 1A-08 10/100 Mbps Ethernet PCI Adapter II (1410ff01)
ent2 Available 14-08 Gigabit Ethernet-SX PCI Adapter (14100401)
ent3 Available 37-08 10/100 Mbps Ethernet PCI Adapter II (1410ff01)
ent4 Available 27-08 Gigabit Ethernet-SX PCI Adapter (14100401)
ent5 Available 3A-08 Gigabit Ethernet-SX PCI Adapter (14100401)
fcs0 Defined 2A-08 FC Adapter
fda0 Available 01-D1 Standard I/O Diskette Adapter
mg20 Available 2D-08 GXT130P Graphics Adapter
ppa0 Available 01-R1 CHRP IEEE1284 (ECP) Parallel Port Adapter
sa0 Available 01-S1 Standard I/O Serial Port
sa1 Available 01-S2 Standard I/O Serial Port
sa2 Available 01-S3 Standard I/O Serial Port
sa3 Available 01-S4 Standard I/O Serial Port
scsi0 Available 11-08 Wide/Ultra-2 SCSI I/O Controller
scsi1 Available 11-09 Wide/Ultra-2 SCSI I/O Controller
scsi2 Available 17-08 Wide/Fast-20 SCSI I/O Controller
sioka0 Available 01-K1-00 Keyboard Adapter
siokma0 Available 01-K1 Keyboard/Mouse Adapter
sioma0 Available 01-K1-01 Mouse Adapter
# lsdev -C | grep fsc0
fcs0 Defined 2A-08 FC Adapter
Now, I can remove device and your childs for new discover.
ATTENTION: This command remove all child and device
# rmdev -dl fcs0 -R
fcnet0 deleted
fscsi0 deleted
fcs0 deleted
For new discover run cfgmgr
# cfgmgr -v