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vSAN Capacity Management and Monitoring Part 2

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This article picks up where Part 1 of this series left off. We will discuss the alarms and notifications in vSAN Health and vCenter Server that can be used to keep an eye on vSAN datastore capacity usage. vSAN Health As mentioned in the previous article, vSAN Health monitors the capacity of the physical drives Read more...
vSAN Capacity Management

vSAN Capacity Management and Monitoring Part 1

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vSAN Capacity Management and Monitoring Series VMware vSAN provides a few dashboards for tracking capacity utilization, free space remaining, deduplication and compression efficiency, and more. There are also the classic vCenter Server alarms that provide various alerts for vSAN just like other datastores types (VVols, VMFS, NFS). Last, but not least, vSAN Health includes capacity-related Read more...
datastore

vSAN Maintenance Mode Impact to Object Resilience

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HCI clusters use local storage devices   Hyperconverged Infrastructure (HCI) clusters powered by VMware vSAN consist of multiple hosts with local storage devices in each host contributing to a shared vSAN datastore. This model combines the cost savings of using local storage devices with the benefits of shared storage. However, when a vSAN host is Read more...
Cluster QuickStart

Faster, Consistent HCI Deployment with Cluster QuickStart

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Build consistency and following vendor recommended best practices commonly lead to the best experience in terms of reliability, performance, and ease of management. This is the case with most hardware and software solutions. An HCI cluster powered by VMware vSAN is no exception. The challenge is there has traditionally been no easy way to ensure Read more...

Just-in-Time Capacity Provisioning with VMware vSAN

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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...

vSAN Degraded Device Handling

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Introduction While this blog article focuses more on availability, performance is certainly worth mentioning. A poorly performing application or platform can be the equivalent of being offline. For example, excessive latency (network, drive, etc.) can cause a database query to take much longer than normal. If an end-user expects query results in 30 seconds and Read more...

vSAN 6.7 in the HTML5 vSphere Client

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VMware is switching many of its solutions to a new HTML5 UI framework called Clarity Design System. As you might already know, this removes the dependency on Flash and provides a clean, modern look for managing a virtualized infrastructure. The user experience is the same using a modern web browser on most popular operating systems Read more...
What happens to vSAN when vCenter Server is offline?

What happens to vSAN when vCenter Server is offline?

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A commonly asked question is “What happens to vSAN when vCenter Server is offline?” The answer is simple: nothing. vSAN continues to operate normally and virtual machines continue to run. This article briefly discusses the impact to vSAN of vCenter Server being offline temporarily and the implications of a permanent loss of vCenter Server. Read more...
vSAN Operations: Add a Host or Fault Domain for Maintenance

vSAN Operations: Add a Host or Fault Domain for Maintenance

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Preparing a host for maintenance is quite simple in a vSphere cluster. With vSphere DRS enabled, you click a host in the vSphere Web Client, select Maintenance Mode, and click Enter Maintenance Mode. vSphere automatically migrates running virtual machines off of the host and places the host in maintenance mode. This effectively removes access to Read more...