HP-UX vPars and Integrity VM V6.3 Administrator Guide

7.3 NPIV — supported limits
Table 14 (page 102) lists the supported limits associated with NPIV in vPars and Integrity VM V6.3
on 11i v3 vPars and VM guests.
Table 14 NPIV supported limits in vPars and Integrity VM V6.3
Supported limitLimit description
16NPIV HBAs per vPar and VM guest
32 (Qlogic HBAs) and 8 (Emulex HBAs)Number of NPIV HBAs per physical HBA
16Number of paths supported per NPIV device
2048Number of LUNs per NPIV HBA
2048Number of NPIV devices per vPar and VM guest
NOTE: In configurations where multiple NPIV HBAs created on a single physical HBA are used
by different vPars and VM guests, all the I/O from these vPars and VM guests share a single
physical HBA, which can lead to performance bottlenecks in high I/O scenarios.
For a more balanced performance, HP recommends that you spread NPIV HBAs for vPars and VM
guests across multiple physical adapters.
7.4 Configuring an NPIV HBA (vHBA)
The overall configuration process for NPIV HBAs is the same as for AVIO. Starting V6.1, a new
storage type called npiv was introduced for configuring NPIV HBAs.
The following sections describe how to determine whether an existing FC card on the VSP supports
NPIV, how an NPIV HBA resource is specified, and how you can present storage devices to an
NPIV HBA both, before and after a guest starts up.
7.4.1 Verifying whether VSP can support NPIV
Before creating a NPIV vHBA, check the physical HBAs on the system to verify that they support
NPIV. Run the fcmsutil command on a VSP Fibre Channel HBA:
/opt/fcms/bin/fcmsutil /dev/fcXXX
where /dev/fcXXX is the DSF (device special file) associated with the Fibre Channel port. It can
be obtained from the ioscan –kfnC fc command:
# ioscan -kfnC fc
Class I H/W Path Driver S/W State H/W Type Description
===================================================================
fc 0 0/2/0/0/0/0 fcd CLAIMED INTERFACE HP AH401A 8Gb Dual Port PCIe Fibre Channel Adapter (FC Port
1)/dev/fcd0
fc 1 0/2/0/0/0/1 fcd CLAIMED INTERFACE HP AH401A 8Gb Dual Port PCIe Fibre Channel Adapter (FC Port
2)/dev/fcd1
The following sample shows you whether NPIV is supported on the VSP:
# /opt/fcms/bin/fcmsutil /dev/fcd0
Vendor ID is = 0x1077
Device ID is = 0x2532
PCI Sub-system Vendor ID is = 0x103C
PCI Sub-system ID is = 0x3263
PCI Mode = PCI Express x8
ISP Code version = 5.4.0
ISP Chip version = 2
Topology = PTTOPT_FABRIC
Link Speed = 4Gb
Local N_Port_id is = 0x010800
Previous N_Port_id is = None
N_Port Node World Wide Name = 0x5001438002344785
102 NPIV with vPars and Integrity VM