Hyperconverged

Understanding vSAN Encryption – “Erase disks before use”

Jase McCarty posted July 16th, 2018

A few questions routinely come up when using “Erase disks before use” with vSAN Encryption. What occurs when “Erase disks before use” is used? When a vSAN cluster has this setting checked, random data is written to each device in a disk group before it is encrypted. Why random data? In one case, if Read more...

Understanding vSAN Encryption – Booting when vCenter is Unavailable

Jase McCarty posted July 13th, 2018

Since the introduction of vSAN Encryption in vSAN 6.6 some of the routine questions that get asked include: Do vSAN hosts get encryption key information from vCenter? What if vCenter is offline, is vSAN encryption impacted? What if vCenter is removed/replaced/not available, is vSAN impacted? The answers to these are pretty straightforward and easy to Read more...

How does vSAN powered HCI control expansion costs?

John Nicholson posted July 13th, 2018

After the sale is when the costs become real Years ago I bought a car that seemed like a great deal. It was a relatively fancy car, but I soon discovered it had a lot of hidden costs. After owning it for several years, I tried to upgrade the GPS system that was included Read more...

Data Placement Optimizations in vSAN 6.7

Pete Koehler posted July 9th, 2018

A primary responsibility of storage is to make data requested readily available for access. While this may seem obvious, storage systems go to great lengths to accomplish this clear, but challenging objective. Hyper-converged infrastructures factor in additional considerations for data placement and resilience, as the storage is distributed across hosts. Considerations include, but not limited Read more...

Understanding the vSAN Witness Appliance – Cluster Membership, Versioning, and Hosting

Jase McCarty posted July 5th, 2018

The vSAN Witness Appliance virtual machine provides a virtualized ESXi host that acts as a tie breaker for vSAN Stretched Cluster and 2 Node configurations. Some common questions come up around not only which version of the vSAN Witness Appliance should be used, but what version the vSAN Witness Appliance should be run on. vSAN Witness Appliance Read more...

Just-in-Time Capacity Provisioning with VMware vSAN

Jeff Hunter posted June 28th, 2018

A challenge with some traditional storage solutions is the inability to add incremental amounts of capacity. Due to a variety of requirements, policies, and constraints, many organizations will purchase a large quantity of storage capacity once every few years as they attempt to account for current and future demands. Purchasing all of that storage up Read more...

How Does vSAN-Powered HCI Speed Up Migrations?

John Nicholson posted June 21st, 2018

The Problem of Hidden Costs Years ago I bought a (relatively) fancy car. for a reasonable price. It got great gas mileage and I got it at a great price. I quickly found out though that the car suffered from a few problems. This car required expensive parts when things broke. A lot broke Read more...

The Use of Erasure Coding in VMware vSAN

Christos Karamanolis posted June 7th, 2018

vSAN is a scale-out, software-defined storage platform that is the key component of VMware’s Hyper-Converged Infrastructure (HCI) offerings, on premises and on VMware Cloud on AWS. vSAN is an enterprise-grade storage product that offers a number of features to ensure the integrity, security and resilience of data. Since the first generally available version of the Read more...

Don’t Miss the VMware vSAN Session at Cisco Live!

vSAN Team posted June 6th, 2018

Are you planning to attend Cisco LIVE US this year? So is the VMware vSAN team! This is a great opportunity for you to learn about the capabilities that vSAN has to offer. Find us at Cisco Live! THE VMWARE BOOTH Stop by to talk to our vSAN experts and demo the product! Read more...

Virtual Volumes now supports WSFC

Pete Flecha posted May 31st, 2018

One of the announcements in the vSphere 6.7 launch that caught my attention was VVol support for WSFC (Windows Server Failover Clustering) using SCSI-3 Persistent Reservations. This is great news for customers still working with RDMs. WSFC clustering solutions use SCSI-3 Persistent Reservations which enables access for multiple nodes to a device (VVol disk) and simultaneously blocks Read more...

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