Recent Posts

VMware vSphere Icon

vSphere 7 Update 1 – vSphere Clustering Service (vCLS)

posted

The vSphere Clustering Service (vCLS) is a new capability that is introduced in the vSphere 7 Update 1 release. It’s first release provides the foundation to work towards creating a decoupled and distributed control plane for clustering services in vSphere. The challenge being that cluster services, like the vSphere Distributed Resource Scheduler (DRS), depend on Read more...
Update Lifecycle Manager Icon

vLCM Support for vSphere Auto Deploy

posted

vSphere Auto Deploy is a great feature that uses PXE boot infrastructure together with vSphere Host Profiles to provision and customize ESXi hosts. Depending on the ESXi host configuration, enforced by its attached Host Profile, state information is stored on the ESXi host itself or by the Auto Deploy server. When the Auto Deploy server Read more...
VMware vSphere Icon

Load Balancing Performance of DRS in vSphere 7

posted

The DRS performance team just released a great whitepaper on the load balancing capabilities in vSphere 7. New features of DRS in VMware vSphere 7 have been introduced to make VMware’s compute control plane even more robust and better in handling both traditional and modern application needs. In this whitepaper, the authors cover the load Read more...
VMware vSphere Checklist Icon

vSphere 7 – System Storage When Upgrading

posted

In a previous blog post, vSphere 7 – ESXi System Storage Changes, we discussed the changes to the ESXi system storage layout. How the various partitions are consolidated into fewer, larger partitions that are expandable as well. A lot of inquiries came in for more information on what happens when upgrading to vSphere 7. Let’s take Read more...
VMware vSphere Icon

vSphere Releases 7.0b and 7.0bs

posted

Last week we released two new update versions for vSphere 7.0. When examining the vSphere Lifecycle Manager (vLCM) image repository, you’ll notice that two new ESXi base images are automatically downloaded, reflecting the downloads that are available on my.vmware.com. There could be some confusion to why we released two versions. With vSphere 7 updates, we’ll Read more...
VMware vSphere Icon

vSphere 7 – Storage vMotion Improvements

posted

The vMotion feature is heavily updated in vSphere 7, resulting in faster live-migrations while drastically lowering the guest performance impact during the vMotion process together with a far more efficient way of switching over the virtual machine (VM) between the source and destination ESXi host. vSphere 7 also introduces improvements for the Fast Suspend and Read more...
VMware vSphere Icon

vSphere 7 – ESXi System Storage Changes

posted

We’ve reviewed and changed the lay-out for ESXi system storage partitions on its boot device. This is done to be more flexible, and to support other VMware, and 3rd party solutions. Prior to vSphere 7, the ESXi system storage lay-out had several limitations. The partition sizes were fixed and the partition numbers were static, limiting Read more...
VMware vSphere Icon

vSphere 7 – A Closer Look at the VM DRS Score

posted

With vSphere 7, we released the greatly improved Distributed Resource Scheduler (DRS) logic. We received numerous requests from customers to provide more information about the VM DRS Score. This blog post details the new DRS algorithm, with a focus on the VM DRS Score. DRS works to ensure that all workloads in a cluster are Read more...
VMware vSphere Icon

vSphere 7 – Virtual Watchdog

posted

The new virtual watchdog timer (vWDT) is a new virtual device introduced in vSphere 7. It enables developers and administrators to have a standard way to know whether the guest operating system (OS) and applications, running inside a virtual machine, have crashed. It is an important function for clustered applications to gain high availability. In Read more...
VMware vSphere Icon

vSphere 7 – vLCM Compatibility Checks

posted

The previous blog post on vSphere Lifecycle Manager (vLCM) covers all its capabilities and explains how vLCM ensures consistency across all ESXi hosts in a cluster using a declarative model. The desired state includes the ESXi base image, optional vendor addons, and firmware & drivers. When hosts drift from the desired state, the configured single Read more...