HP-UX vPars 6.0 N-Port ID Virtualization (NPIV) - A brief overview

Since only V1 is on, and it only has one vHBA, there is only 1 VFC:

# ioscan -kfnNd fcd

Class I H/W Path Driver S/W State H/W Type Description

=====================================================================

fc 0 0/0/0/5/0/0/0 fcd CLAIMED INTERFACE HP 451871-B21 8Gb Dual Port PCIe Fibre Channel

Mezzanine (FC Port 1)

/dev/fcd0

fc 1 0/0/0/5/0/0/1 fcd CLAIMED INTERFACE HP 451871-B21 8Gb Dual Port PCIe Fibre Channel

Mezzanine (FC Port 2)

/dev/fcd1

fc 2 0/0/0/5/0/0/1.0x11 fcd CLAIMED INTERFACE HPVM Virtual FC (VFC) Controller

/dev/fcd2

The line above in bold shows that /dev/fcd2 is the VFC controller and is created under the Physical Fibre Channel

HBA /dev/fcd1. If the vHBA had been defined as backed by /dev/fcd1, the VFC line would have appeared

between the two mezzanine card entries. (Please note the difference in the descriptions of the two controllers.)

Accessing the NPIV LUNs from EFI

Once LUNs are presented to the vHBA, the administrator can choose to install the HP-UX OS image on a NPIV LUN.

If you run Ignite-UX at this time, the installation application sees the LUNs and make them visible to EFI.

If you are mounting a disk that has been preinstalled, or if you are finding that you have problems seeing your LUN,

then follow these steps:

1. Once the vPar boot process reaches the EFI shell, issue the command:

Shell> drvcfg –s

HP AVIO Stor Driver Configuration

==================================

Warning: Enumerating all SCSI or FC LUNs increases initialization times.

Enumerate all SCSI LUNs (Y/N)? [current setting: N]: N

Enumerate all FC LUNs (Y/N)? [current setting: N]: Y

Answer the last question “Y” to ensure that EFI can map the NPIV LUNs.

2. Reset the vPar (Shell> reset) in order to make the changes active.

3. Run the devices command to get a listing of all of the LUNs available.

4. Identify the NPIV LUN by looking for the following format:

Acpi(PNP0A03,0)/Pci(4|0)/Fibre(WWN207000C0FFDA0287,Lun4001000000000000)/HD(Part3,Sig5CA3A696

-E349-11DF-8000-D6217B60E588)

5. At this point, you may boot from the NPIV LUN, just as you would from any disk (“fsN:” or “blkN:” followed by

“hpux”).

These steps are not necessary to access LUNs from a booted OS (including the Ignite-UX screens). The HP-UX and

install kernels do their own scan of the available I/O resources.