What should you do if “No space left on device” error occurs while updating VMware ESXi?
Posted by Alex Samoylenko on April 19, 2018
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While updating VMware ESXi servers, VMware vSphere users may encounter the “No space left on device” error that pops up while executing “esxcli software vib update” command. Interestingly, the problem occurs even though disks are doing well and have enough free space and df -h command proves that.

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Generating a Support Bundle: How to Retrieve Virtual Infrastructure Logs from VMware vCenter and ESXi Servers
Posted by Alex Samoylenko on March 22, 2018
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http://www.vmgu.ru/content_images/vmware_psod-4.png

One day, any VMware administrator may require the so-called “support bundle” which contains log-files, diagnostic information, and performance metrics. Taken together, these parameters allow troubleshooting VMware vSphere. The bundle provides VMware GSS (Global Support Services) the insight into virtualized environment configuration which allows them to resolve issues, when a client submits a support ticket with this bundle attached.

Apart from that, the bundle comes in handy, for example, while analyzing the reasons of the “pink screen of death” (PSOD) in ESXi environment and other errors.

This article discusses retrieving the support bundle for VMware vCenter servers (be it Windows or vCenter Server Appliance, vCSA) and VMware ESXi.

Before we go deeper, here’s a small note: the support bundle can bloat to 300 MB, depending on what it contains, the frequency of infrastructure configuration changes, and how long ago the last change has been made.

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Managing StarWind Virtual SAN infrastructure in a web browser. Part 2: StarWind VSA
Posted by Kateryna Rudenko on February 6, 2018
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StarWind Management Console

Currently, there are two options for managing StarWind-based infrastructure via web: StarWind Gateway VM and StarWind Virtual Storage Appliance (VSA). So today, I’m gonna describe the second option which allows easily managing your StarWind Virtual SAN infrastructure from any point of the world using any web browser.

StarWind Linux-based Virtual Storage Appliance is the best way to instantly deploy StarWind Virtual SAN to test its functions without having to change your already-existing infrastructure. StarWind VSA supports all industry-standard hypervisors such as Microsoft Hyper-V, VMware ESXi, Citrix XenServer, and KVM and includes Web Management Console allowing to use any HTML5-capable web browser. StarWind VSA is really simple to deploy and manage, requiring no special skills from the on-site IT-team.

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A little about Disk write cache on Windows VM
Posted by Bogdan Savchenko on March 9, 2017
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Introduction

There are lots of great materials on optimization of virtualized environments that I think many of you will enjoy reading about. Such topics are all over the IT community and they cover a wide range of the technical questions. This article will focus on the matter which is not quite clear yet, especially when it comes from theory to practice. It’s about Windows Disk write cache feature and its implications for data consistency and performance of the virtual hard drives.

Test VM settings

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