A closer look at the VSAN witness appliance

As part of the Virtual SAN 6.1 announcements at VMworld 2015, VMware announced two new, eagerly anticipated features. The first of these is VSAN stretched cluster, allowing you to protect your virtual machines across data centers, not just racks. And the second is 2-node VSAN, which will be an excellent solution for remote office/branch office (ROBO) configurations. To allow these configuration to work, a dedicated witness host is required. For those of you already familiar with VSAN,  a witness component is used in the event of a split brain to figure out if the virtual machine objects have a quorum.…

Supported network topologies for VSAN stretched cluster

As part of the Virtual SAN 6.1 announcements at VMworld 2015, possibly the most eagerly anticipated announcement was the support for a VSAN stretched cluster configuration. Now VSAN can protect your virtual machine across data centers, not just across racks (which was achievable with fault domains introduced in VSAN 6.0). I’ve been hearing requests from customers to support this since the initial VSAN beta, so it is definitely a welcome addition to the supported configurations. The obvious next question is how do I set it up. Well, first of all, you will need to make sure that you have a…