Linux on General Ramblings

How to copy custom attributes when migrating vmware vcenter to new database

Tue, 27 Sep 2011 19:19:05 +0000

I recently had to move hosts and guests to a new vcenter server as the old server had become corrupt and full of issues.

The current vcenter has a few custom attributes and notes that would not be transferred as part of the move.

So I wanted to use powercli to read the attributes out and put them back.

To export the attributes I used the script below.

You will need to add as many Key Value pairs as you have custom attributes

Creating a Two Node Mysql Cluster On Ubuntu With DRBD Part 2

Wed, 11 May 2011 22:23:00 +0000

This blog is a follow on from a blog post I wrote ages ago and have eventually got round to finishing it off In this part of the process we will create the disks and setup the DRBD devices First we need to connect to the Virtual Machines from a terminal session as it makes life much easier and quicker when you connect remotely. You will need to make sure that your servers have static IP addresses. For this document I will be using the following IP addresses for my servers.

ESX Trunk VLAN config for Storage

Thu, 28 Apr 2011 08:47:21 +0000

I was struggling with an install of ESXi on a cisco 6509 switch where the management and VM LAN connectivity worked just fine but for some reason the SAN NFS VLAN just did not want to communicate with the Nexenta on that VLAN.

After some searching and trial and error I was able to utilise this post http://blogs.egroup-us.com/?p=2453 to get the port-channel and the ports configured correctly. I did not use all the settings from this post but it did remind me to check my port0-channel config.

Creating a Two Node Mysql Cluster On Ubuntu With DRBD

Thu, 01 Apr 2010 14:00:11 +0000

Creating a Two Node Mysql Cluster On Ubuntu With DRBD To create this cluster you will need 2 ubuntu node servers installed as follows.

I am creating this cluster inside of vMware so I created 2 VM's with:

1GB RAM

1 10GB hdd for the root (/) partition.

1 20GB hdd for the database store.

I downloaded the ubuntu 9.10 server iso and presented this to the VM's and started the install.

Linux Live

Sun, 26 Oct 2008 00:56:13 +0000

On Friday and Saturday I was lucky enough to have gone to Linux Live in Olympia London UK and work the stand with Alex. As Alex has blogged the show was very quiet and it seems the .org village was an afterthought to the organisers.

As Alex said in his blog http://www.alexhudson.com I think that there was not enough advertising and the show we were paired with was the wrong one as the two user groups had completely different interests and priorities. I saw many a creative user swagger confidently into the area and you can see how his facial expression changes from complete confidence to utter fear step by step as he walks further. When he can’t take it anymore a swift about turn on the heel and almost sprinting he leaves and sighs a huge sigh of relief when he finds himself amongst the apple logos.