HP Integrity VM 4.3 N-Port ID Virtualization - A brief overview

9
Specifying an NPIV resource
An NPIV resource is specified for VMs using the following format:
devicetype:adaptertype:bus,device,vPWWN,vNWWN:storage:device
Where:
devicetype:
This is the virtual device type as seen in the VM. For NPIV this will be “hba”
adaptertype:
This is the adapter “type” as seen in the VM. For NPIV, the adaptor type is “avio_stor”
bus:
This is PCI bus number for the virtual device and can range from 0 to 7
device:
This is PCI slot number for the virtual device and can range from 0 to 7
vPWWN:
A valid (64 bit), unique virtual Port World Wide Name, that will be assigned to the NPIV HBA. This is analogous
to the unique PWWN that is associated with physical FC HBA.
vNWWN:
A valid (64 bit), unique virtual Node World Wide Name, that will be assigned to the NPIV HBA. This is
analogous to the unique NWWN that is associated with physical FC HBA.
storage:
This is the physical storage type on the host. For NPIV, this is “npiv”
device:
This is the physical device in the host corresponding to the virtual device. For NPIV, this would correspond to the
device special file for the physical port on which the virtual NPIV instance will be created (/dev/fcdN).
Example: A resource specification to create a vHBA over the physical HBA corresponding to the FCD instance
/dev/fcd0, using a port WWN of 0x50060b00006499a8 and a node WWN of 0x50060b00006499a9
(manually entered values are generally arrived at by consulting with the storage administrator):
hba:avio_stor:1,1,0x50060b00006499a8,0x50060b00006499a9:npiv:/dev/fcd0
Just as for legacy-shared (AVIO) devices, a specification of a vHBA may also skip the bus and the slot numbers in the
resource string; the host picks the next available bus and slot number for the vHBA. The vWWN cannot be skipped,
unless you have the GUID Management Services installed and configured (guidmgmt(1M), recommended). In that
case, HP recommends allowing GUIDMgr to allocate and reserve the vWWN for you.
Example: A resource specification to create the same vHBA specified in the previous example, but letting the system
pick the bus, device, and vWWN numbers:
hba:avio_stor::npiv:/dev/fcd0
NOTE:
You can’t add an NPIV resource to bus 0, device 3 (reserved).