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.…

My VMworld Session – VSAN POC – now available

One of the break-out sessions that I presented at VMworld 2015 on Virtual SAN (VSAN) has been recorded and is now available on YouTube. I co-presented “STO4572 Conducting a Successful Virtual SAN Proof of Concept” with Julienne Pham of VMware, who did the initial part of the session. Julienne explains the planning phase, the kinds of things you need to think about, the conversations that need to take place within the organization and especially the IT team, and then what tools you have available to help you deliver the VSAN Proof Of Concept. I come on stage later on to…

VSAN 6.next beta – A glimpse of the future

Before Virtual SAN was generally available last year, the preceding VSAN beta program was one of the largest beta programs ever to take place at VMware. Today, a new beta program for VSAN was announced for 2015! This week, we’ve already announced a bunch of enhancements in VSAN 6.1 at VMworld 2015, including VSAN stretched cluster for high availability across data centers, a new 2-node VSAN model for remote-office/branch-office (ROBO), new hardware support for Intel NVMe and Diablo Ultra DIMM, and the additional features added to the health check plugin. You can read more about these announcements here. VMware has…

A brief overview of the new Virtual SAN 6.1

With the announcements just made at VMworld 2015, the embargo on Virtual SAN 6.1 has now been lifted, so we can now discuss publicly some of the new features and functionality. Virtual SAN is VMware’s software-defined solution for Hyper-Converged Infrastructure (HCI). For the last number of months, I’ve been heavily involved in preparing for the Virtual SAN 6.1 launch. What follows is a brief description of what I find to be the most interesting and exciting of the upcoming features in Virtual SAN 6.1. Later on, I will follow-up with more in-depth blog posts on the new features and functionality.

vROps Management Pack for Storage Devices 6.0.2 is GA

Today sees the release of the vRealize Operations Management Pack for Storage Devices (MPSD) version 6.0.2. This is exciting for me as it means that vROps now has management and monitoring features for Virtual SAN 6.0.  The management pack comes with a set of default dashboards for Virtual SAN clusters, as well as the ability to monitor and create proactive alerts/notifications based on VSAN events. I took the vROps Management Pack for a spin a little while back, and used it on my own lab cluster. Included below are a few of the features that it has.

Handling VSAN trace files when ESXi boots from a flash device

I’ve been involved in a few conversations recently regarding how VSAN trace files are handled when the ESXi host that is participating in a VSAN cluster boots from a flash device. I already did a post about some of these considerations in the past, but focused mostly on USB/SD. However SATADOM was not included in this discussion, as we did not initially support SATADOM in VSAN 5.5, and only announced SATADOM support for VSAN 6.0. It seems that there are some different behaviors that need to be taken into account between the various flash boot devices, which is why I…

Is VSAN for you? It’s never been easier to check…

A common question we receive when we meet with customers and talk about Virtual SAN is “whether or not VSAN is going to be able to run my particular workloads?” This is a great question to ask, as most customers are coming from a background of SAN or NAS storage arrays, fibre channel, FC switches, HBAs, CNAs, etc. Since VSAN is still relative new (18 months old at this point), being confident that this new product can successfully run existing virtual machines and applications is paramount. To that end, VMware has developed a number of tools that are simple to…