Communicator e3000 MPE/iX Release 7.5 (Software Release C.75.00) (30216-90336)

Chapter 4
Fibre Channel Device and Adapter Support on HP e 3000 Systems
FCSCAN — Fibre Channel Device Scan Utility
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0/8/0/0.27.0 SEAGATE ST39103FC disk 0/8/0/0.8.0.255.1.11.0
The output from FCSCAN utility shows the following information:
• SYSGEN PATH:
— Hardware path of the FC adapter card or device. This is the path used in SYSGEN to configure the
card or device in the system.
• DESCRIPTION:
— Description about whether the path specifies an FC card or device. If device, it also specifies the model
and type of the device.
• BOOT MENU PATH:
— Path value for an FC device to be used in the system Boot Command Handler or firmware Main Menu
to set that particular device as the primary path. The boot menu path is a detailed long format path
unlike the simplified SYSGEN path. It is necessary to use this long path in boot menu because the
system firmware can understand only this format to access devices. So typically to install on or boot
from a FC disk, the primary path will be set to this long path for that disk as printed by FCSCAN.
The above sample output shows that there are two Fibre Channel Adapter cards in the system with paths
0/2/0/0 and 0/8/0/0. There are no FC devices shown for card 0/2/0/0, which implies that the card is not
connected to any at present. There are some devices shown under card 0/8/0/0.
Path 0/8/0/0.0 shows an FC N_Port (Node Port) which indicates the fibre channel port of a device connected to
the card. FC N_port is required to be configured in SYSGEN while configuring devices. The output also shows
three disks of type HP OPEN-3 shown with paths 0/8/0/0.0.0, 0/8/0/0.0.1 and 0/8/0/0.0.105. The last
components of these paths refer to the LUN number of these disks. The type HP OPEN-3 usually refers to an
XP512 device disk. Since the hardware paths of these three disks come under Nport 0/8/0/0.0, they all fall
under the same Nport in the XP512 device.
A typical configuration of the FC card and disks in SYSGEN is shown below:
:sysgen
sysgen> io
io> lp 0/8/0/0
PATH: 0/8/0/0 LDEV:
ID: A6795A TYPE: DA
PMGR: FC_DAM PMGRPRI: 6
LMGR: MAXIOS: 0
io> lp 0/8/0/0.0
PATH: 0/8/0/0.0 LDEV:
ID: FC_NPORT TYPE: DA
PMGR: FCP_NM PMGRPRI: 6
LMGR: MAXIOS: 0
io> lp 0/8/0/0.0.0
PATH: 0/8/0/0.0.0 LDEV: 60
ID: HPDARRAY TYPE: DISC
PMGR: SCSI_DISK_AND_ARRAY_DM PMGRPRI: 8
LMGR: LOGICAL_DEVICE_MANAGER MAXIOS: 0