Ever had that weird problem on AIX where your routing table has a second default gateway?

I had and this is how i fixed it. In my case when I changed a ip address and default gateway in smitty, the routing table ended up with TWO default gateways. This is bad news if your machine is a seperate vLAN or subnet and needs to communicate outside of this vLAN or subnet.

The example below shows the output of a netstat -rn. In it you can see two default gateways. One is correct 10.2.98.113 and the other 10.0.72.16 is incorrect.

This guide is designed to give instructions on how to build a basic working IBM VIO server. If like me you find the normally excellent IBM documentation sometimes lacking on this subject and you have not been on the IBM P-series Virtualisation seminar (I went after I had to build my first 24/7 production environment which is kind of too late! -by the way the seminar is recommended especially if you get it for free) this might help fill in the gaps!

Restoring an RS/6000 P Series HMC is something you might have to do in the event of hardware failure of your IBM HMC. If your machine has failed and you have received a replacement HMC unit from your vendor or IBM it would be in a factory default state (no configuration useful for your site). You would need to take a previous backup of your critical data and restore it. This guide shows you how to do it using FTP transfer method.

Backing up your RS/6000 P Series HMC or Hardware Management Console is an important part of your operational routine. This device is the Window to your P-Series. If you lose your HMC your P-Series and LPARS will continue to function however all of the lpar information will be lost and when you replace the faulty HMC (through IBM or your reseller) you will most likely find you have a blank HMC that won't 'know' about your LPAR configuration.

The example of backing up your systems uses the following:

1 X HMC version 6 release 1.2

What it is: A basic guide to sharing and mounting remote NFS shares