Storage capacity is not always easy to determine when you don’t know the exact space requirement in advance. Even with the price of hard drives going down, you do not want to pay too much in advance for space you will not use. Extending the space available after purchase, without rebooting your server, can be a great way to save money in the present without compromising the future.

Let’s see how to extend a RAID 10 array of a Dell R720xd running Ubuntu Server 12.04, even when Dell says the RAID controller does not support this feature.

. . . → Read More: Creating an expandable RAID 10 on Dell PowerEdge R720xd

One inconvenient of VMBuilder is the command line length. There is no way you can remember all the parameters without making mistakes. So I created a small bash script on the host servers I manage to allow to create new VMs without searching all the parameters to submit.

. . . → Read More: Creating new VM with VMBuilder on Ubuntu 10.04