How to map a raw LUN when ESXi doesn’t want you to…

VMware ESXi is a very popular hypervisor and the underpinning of the vSphere virtualisation suite which caters for enthusiasts up to large scale datacenter operations for enterprise and service providers. VMware offers a VMware logovariety of software to achieve virtualisation, Workstation, Server, ESX and ESXi being the main flavors with very different focusses: Desktop use, existing server, with a Linux console and without. ESXi is the variant with the smallest footprint and is ideal if you don’t need to implement a bunch of monitoring or other scripting on the host, are going to do all that management stuff elsewhere, or just don’t need to do any. As with the trusty old VMware Server, ESX and ESXi are available with a free license that gives you lots of room to play with but removes some of the more advanced features (like being able to move VM’s between hosts whilst running). Continue reading

RAID gone Green

Western Digital RE4-GP Hard Drive

Western Digital RE4-GP

Western Digital released their lower-power “Enterprise” RAID Edition (The RE-GP series) Serial ATA (SATA) drives some time ago, and the 1.5 and 2TB versions (RE4-GP series) last year. They were found to have an issue with certain RAID controllers and received much bad press as a result.

It’s now more than a year on and they have newer firmware, which has been generally well received. I also was toying with reducing the energy footprint of my home-business mass storage needs (not to mention to improve its reliability and performance) so I decided to give them a whirl in my newest server build Continue reading