Recently I noticed that my clock was beginning to skew, and NTP wasn’t able to keep up with it. This is due to having a “system clock” and a “hardware clock” the system clock is the one that the OS controls, while the hardware clock is controlled by the BIOS…
Media Management: Rename JPG Images Based on Metadata
I have been doing a bit of cleanup around my home file server, and have noticed that while I have a really beautiful collections of family photographs there is no logical organization around these photos. I have many duplicates names, which would collide in the event of trying to merge…
Oracle Linux 6: Create an OCFS2 Cluster and Filesystem
Today we are going to go through the process of creating a clustered file system on a pair of Oracle Linux 6.3 nodes. This exercise is not very resource intensive. I am using two VMs each with 1GB of RAM a single CPU and a shared virtual disk file in…
Linux KVM: Ubuntu 12.10 with Openvswitch
Today I am revisiting my previous post on Openvswitch on Ubuntu 12.04. Things have changed since then. Previously Openvswitch was relatively new and as such the userland tools (with libvirt being the one I use) didn’t support it yet, so while you could have used Openvswitch by executing the kvm…
Linux-LVM: Resize Partition to Grow LVM Volume Group
Logical Volume Manager makes the dynamic expansion of file systems dead stupid simple. However there is a weakness, if you are using a partitioned file system as your Physical Volume (PV) then you will end up needing to expand the file system if you ever need to grow the actual…