Archive for July, 2012

In an earlier post here, I shared my frustrations about how it doesn’t seem possible to get a Pacemaker cluster going with OCFS2 as the cluster fs on CentOS 6. But I wouldn’t be a “guru” if I couldn’t get it work now would I?? <evil laugh> hahahaha </evil laugh>. […]

One aspect of using Linux that often boggles my mind is how the difficultly of some tasks will vary from distribution to distribution. For example, a package or absolute dependency needed to compile an application or build a library may be present on OpenSUSE or SLES but be completely missing […]

As many of you already know, fencing is an important component of maintaining the health of your cluster. When cluster nodes experience issues, behave improperly or overall, just aren’t playing nice with the remainder of the nodes, it’s important to bring down that node as fast as possible, otherwise you […]

Update 2013-03-11: A reader was kind enough to inform me that sharing wasn’t working for him. I looked into it and indeed it was no longer working. I opened an issue with the xapi developers over at github and it seems that some changes went into xapi between releases and […]

A couple of months ago, I finally made time to sit down and play with one of the most powerful features of Samba: clustering and high availability through CTDB. CTDB stands for Clustered Trivial DataBase. The TDB is a lightweight database used by Samba to store different types of persistent […]