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
Configuration Examples for Fibre Channel Adapters and Devices
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The above sample output shows that there is a Fibre Channel Adapter card configured in the system at path
0/8/0/0. Under this card, there are some devices listed.
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 disk array. 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.
Path 0/8/0/0.95 shows another FC N_Port (Node Port) indicating another device is connected to the card.
Under this N_Port, there are four disk LUNs of type HP A6188A shown with paths 0/8/0/0.95.0, 0/8/0/0.95.5,
0/8/0/0.95.10 and 0/8/0/0.95.50. The type HP A6188A refers to a VA7100 disk array.
Thus FCSCAN utility shows all device N_Ports and LUNs connected to the adapter card. The next section
describes how this information can be used to configure them in SYSGEN. More details on FCSCAN utility
are covered in a separate article in this Communicator document.
Configuring Fibre Channel Devices
Since the FC adapter card at path 0/8/0/0 has already been configured, now go on to configure the FC devices.
For this we should first configure the FC Nport paths and then the FC device LUNs. FC NPort should be
configured in SYSGEN with the standard ID “FC_NPORT”.
io> ap 0/8/0/0.0 id=FC_NPORT
To check that the FC N_Port is properly configured:
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
Note that the PMGR will be set to “FCP_NM”, Fibre Channel Protocol Nport Manager, which is the new
manager software for FC device adapter card. This is one significant difference between configuring a FC
device and a SCSI device. For a SCSI device usually the path component at this level is configured in
SYSGEN with “id = pseudo” to indicate a pseudo manager. But for FC devices, this path component level has
a real software manager called FCP_NM.
After configuring the Nport, the next step is to configure the FC device LUNs. For this too, we can use the
hardware paths of the LUNs as printed in FCSCAN output. The ID to be used while configuring any of the FC
device LUNs is HPDARRAY.
io> ad 3 path=0/8/0/0.0.0 id=HPDARRAY
io> ad 4 path=0/8/0/0.0.1 id=HPDARRAY
io> ad 5 path=0/8/0/0.0.105 id=HPDARRAY
To check that the FC device LUNs are properly configured:
io> ld 3
LDEV: 3 DEVNAME: 00000100 OUTDEV: 0 MODE:
ID: HPDARRAY RSIZE: 128 DEVTYPE: DISC
PATH: 0/8/0/0.0.0 MPETYPE: 4 MPESUBTYPE: 2
CLASS: DISC SPOOL