… What the? Ok, so the basic idea here is that we’re going to be creating a cluster, sharing a block device from one server to the other nodes in a cluster as a Global Network Block Device, putting it into an LVM configuration, and formatting the filesystem using Global File System for file locking between nodes… And we’re gonna do this all natively with Red Hat Clustering Suite. This is a good, low-rent implementation of block device sharing in a cluster, where iSCSI or FCP is not available to the hosts. It’s better than NFS because we get real locking mechanisms, and we get our own fencing mechanism for the cluster (which, unfortunately I won’t be covering in this post). I’ve recently had the opportunity to do this as a proof of concept and this is really cool stuff… Continue reading »

© 2013 Dan's Blog Suffusion theme by Sayontan Sinha