The OpenStack community is organising OpenStack Days UK on September 26, 2017 in London. I’ll be presenting how to work with legacy applications in the clouds (Room: London Wall @15:45).
Have you ever been in a situation where you had to migrate a VMs across the globe with minimum downtime? VM live migration across Openstack regions.
In a previous post I showed you how to deploy storage tiering for Ceph, today I will explain how to setup hybrid storage tiers.
Inspired by Schrodinger’s famous thought experiment, this is the the story of a Ceph cluster that was both full and empty until reality kicked in.
Wavelength Division Multiplexing (WDM) is a multiplexing method which uses different colors (or wavelengths) of light. Where traditional optics allow a single channel of communication on a fiber pair, WDM deployments allow to carry up to 96 channels on a single fiber pair. Channels can support different technologies and different speeds, for example you can mix 1G Ethernet, 10G Ethernet and 4G Fiber Channel on the same fiber run.