Blog Archives

I build High Availability Platforms so Cloud is not for me

Ever since someone first tried to represent the idea of packet switched network that was resilient to failure they probably used a picture of a cloud. Cisco’s official iconography for such a network is a cloud. It has been taken

Posted in Big Data, Datacenter, Networks, Systems, Virtualization

IPv6 and Virtualisation Revisited

I recently discovered Vagrant and after some experimentation and reading I set about replacing all my ESXi and HyperV hosts with Linux based hypervisors. After installation of the RPM package creating a VM was as simple as issuing; vagrant box

Posted in IPv6, NAMOS, Networks, Systems, Virtualization

NAMOS Virtualised

As I was updating to the latest WordPress (2.8.6) I noticed that the About page still showed my old setup. I moved to a shiny ‘new build’ flat a year or so ago and unfortunately my old Compaq 9000 Rack

Posted in NAMOS, Virtualization

Utilising Read Only Domain Controllers to Leverage Hosted Active Directory

One of the common issues that appears when integrating a hybrid vision of Hosted Exchange with someones existing infrastructure (so not really Hosted Exchange at all!) is synchronising credentials between the Exchange Server and the local machines or for the

Posted in Datacenter, Email, Networks, Systems, Virtualization

HyperV Stuff

Just as I’ve finished consolidating all my Physical machines to HyperV guests Microsoft have announced Windows HyperV Server which is a free download. With the release of the HyperV Linux Componants I’m going to start moving some workloads away from

Posted in Datacenter, NAMOS, Virtualization

Benefits of Virtualisation For Training

Working in a Data Center brings with it various challenges that you wouldn’t normally find in most other jobs; we come across demanding solutions, ingenious ‘hacks‘, impressive software and outright weird errors. Once we’ve crossed a particular hurdle then we

Posted in Datacenter, Systems, Virtualization

Leveraging Virtualisation To Fight Spam

A few weeks ago I ‘inherited’ a frontend anti-spam solution that was getting crushed under the weight of the Christmas run-up. Emails were taking up to a week to arrive at the back-end system and a lot of spam was

Posted in Datacenter, Email, Systems, Virtualization

VMWare Virtual Center Errors

Yesterday I had a nasty case of Y-splitter failure (in future I’m just going to upgrade the PSU rather than go though this again) which caused all four of the 320Gb disks of a RAID5 array to suddenly disappear. Windows

Posted in Datacenter, Systems, Virtualization