May 5, 2018

Towards a Better NBD Server

Towards a Better NBD Server I’ve had an idea floating around in the back of my mind since working on flexnbd that there ought to be a better way to do block storage. This is, admittedly, a fairly niche interest. FlexNBD is an NBD server which allows you to live-migrate the storage to a new instance on a different machine. In a VM hosting environment, this is extremely handy: if you know your storage back-end is flakey, you can evacuate before you actually lose any data. Read more