End-To-End Lun Device Mapping; Post-Install Tasks And Considerations; Configure Ibm I Networking - IBM I VIRTUALIZATION - READ ME FIRST 7-9-2010 Manual

10.5. End-to-end LUN device mapping

In October 2009, IBM enhanced both the HMC and VIOS to allow end-to-end device mapping for
LUNs assigned to client LPARs, such as IBM i. The new function enables administrators to
quickly identify which LUN reporting in VIOS (or, hdisk) is which DDxxx disk device in IBM i. This
in turn makes it easier to troubleshoot disk-related problems and safer to change a virtualized
disk configuration. In order to correctly perform the mapping, the HMC requires an active RMC
connection to VIOS. Such a connection is not required for the IBM i client LPAR, because IBM i
does not use RMC for DLPAR operations. However, if the client is an AIX LPAR, an active RMC
connection to AIX is also required for a complete end-to-end mapping.
To perform end-to-end LUN device mapping, use the following steps:
•
Sign onto the HMC as hscroot or another superadministrator-level userid
•
Expand Systems Management
•
Expand Servers
•
Click the correct managed system (server)
•
Select the correct VIOS by using the checkbox
•
Use the launch-in-context arrow and select Hardware Information
Adapters SCSI

11. Post-install tasks and considerations

11.1. Configure IBM i networking

Once the IBM i client partition is installed and running, the first system management step is to
configure networking. There are three types of network adapters that can be assigned to an IBM
i client partition:
•
A standard physical network adapter in a PCI slot
•
A logical port on a Host Ethernet Adapter (HEA)
•
A virtual Ethernet adapter
Note that both physical and virtual I/O resources can be assigned to an IBM i virtual client
partition. If a physical network adapter was not assigned to the IBM i client partition when it was
first created, see the topic Managing physical I/O devices and slots dynamically using the
HMC in the Logical Partitioning Guide
(http://publib.boulder.ibm.com/infocenter/systems/scope/hw/topic/iphat/iphat.pdf) to assign an
available adapter.
An IBM i client partition can also use the new HEA capability of POWER6 processor-based
servers. To assign a logical port (LHEA) on an HEA to an IBM i client partition, see the topic
Creating a Logical Host Ethernet Adapter for a running logical partition using the HMC in
the Logical Partitioning Guide:
http://publib.boulder.ibm.com/infocenter/systems/scope/hw/topic/iphat/iphat.pdf.
Lastly, a virtual Ethernet adapter can also provide network connectivity to an IBM i client partition.
To create one, consult the topic Configuring a virtual Ethernet adapter using the HMC in the
Logical Partitioning Guide:
http://publib.boulder.ibm.com/infocenter/systems/scope/hw/topic/iphat/iphat.pdf.
Virtual I/O
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