On October 20, IBM announced that an IBM i 6.1 environment on a POWER6 processor-based system can be
upgraded to IBM i 6.1.1 with an image on the network file server. Prior to this
enhancement, you’d have to install with physical media or with virtual media
located locally on the system being upgraded. This required a manual FTP the
virtual images across the network to the individual partitions to be installed.
Now the image file can be shared over the network.
The concept of a virtual optical device using image files
shared over a network was implemented in IBM i 6.1. This new function was
limited to Licensed Program install, PTF install and data restore operations.
Now with the recent enhancements, users can also upgrade Licensed Internal Code
and IBM i operating system using this same shared image file support.
Advantages of Network Install
Normal full function install screens (virtual media
install did a copy of LIC under the covers)
Quick, easy and efficient
Install multiple partitions at the same time from the
same image server
No manual change to the panel functions in the
partition properties on the HMC
Great for users who have large hardware configurations
with multiple partitions that share physical DVD devices
Simple setup and configuration
To prepare and share virtual optical images with the
Network File System (NFS) network, you need to ensure that the client system
and source system meet specific requirements.
Image File Server Requirements. To share virtual optical
images through a network, the source system serves as the image server and must
meet the following requirements:
System must be at IBM i 6.1 or greater
PTFs SI35186 and SI35189
NFS server *RPC, *SVR, and *MNT must be started
The server must be able to share virtual optical images
using version 3 or later of the NFS
The images to be served must exist in an image catalog,
which must have an image catalog path name that is limited to 127 characters.
Path name characters are limited to A-Z, a-z, 0-9 and / (slash). Each image
file name is limited to 127 characters.
A volume list (VOLUME_LIST) file containing the list of
images to be loaded in the virtual optical device must exist in the image
catalog directory. The VFYIMGCLG command is used to create the volume list file
from the image catalog containing the images you want to share. A volume list
has the following characteristics:
o Must be called VOLUME_LIST o Each line is either a image file name or a comment o ASCII format o All entries are ended by the end of a line o All characters following the pound sign ’#’ are considered comments until the end of the line o Comments can be added after # and must be followed by an EOL character o Provides the order that the image files will be processed on the
client system o File names are limited to 127 characters o Can be created with the Verify Image Catalog Entry (VFYIMGCLG) with
the NFSSHR(*YES) parameter or manually by using a ASCII editor o No tabs or line feeds can be used in the path name
Note: Changes to VOLUME_LIST file aren’t active until the
next time the client device is varied off/on.
Client System Requirements. The client system or system
to be installed needs to access virtual optical images through a network and
must meet the following requirements:
System must be at IBM i 6.1 or greater
POWER6 or later
The install media must be IBM i 6.1.1 or later
The following i 6.1 PTFs are required: SI35201 (lead
PTF – this will cause the other PTFs to be ordered and installed), SI35186,
SI35189, SI35747, MF47284, MF47285
An 632B-003 optical device is created by using the
Create Device Description Optical (CRTDEVOPT) command. The client must also
have either a service tools server or a LAN console connection configured and
version 4 of the Internet Protocol (IP).
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