Davoud Teimouri - Virtualization and Data Center Blog

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Oracle Linux Virtualization Manager

This new server virtualization management platform can be easily deployed to configure, monitor, and manage an Oracle Linux Kernel-based Virtual Machine (KVM) environment with enterprise-grade performance and support from Oracle. Red Hat did it and developed Red Hat Enterprise Virtualization Manager based on the open source oVirt project .

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The ramdisk ‘tmp’ is full – VMware ESXi 6.x on HPE ProLiant

We are using HPE ProLiant servers in our virtual environment to delivering different services to our customers. VMware ESXi has been installed on all servers as Hypervisor. You know that each vendor has customized image that includes VMware ESXi, drivers and management tools. It seems, there is an issue on HPE Agentless Management (AMS) on latest ESXi image.

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VMware ESXi Warning: Failed to reserve volume f530 28 1

We had a disaster on one of our storage devices that some virtual machines were hosting by the storage. After recovering issue on the storage, the below log was on some ESXi hosts: ESXi-Server vmkwarning: cpu45:34354)WARNING: Fil3: 2469: Failed to reserve volume f530 28 1 5cde7257 f5e2aa1e 67208f12 f0f55d7c 0 0 0 0 0 0 0 The issue was happened when the hosts were trying to mount the affected datastores even after issue was recovered. Some of affected datastores wont mounted automatically after disaster. So we had to rescan all paths on ESXi servers or mount the datastores manually. Hope this post will help you to recover same issues faster. Further Reading ESXi Fails with “Corruption in dlmalloc” on HPE Server VMware ESXi Queue Depth – Overview, Configuration And Calculation

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What’s WinDocks?

Windocks combines Docker Windows containers with SQL Server database cloning, for a modern, open data delivery solution.Enterprises modernize application development, testing, reporting, and BI, with existing licenses and infrastructure, at a fraction of the cost of alternatives.

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PowerCLI: Best Way to Run Invoke-VMScript and Challenges with Linux Guest

There is some challenges for passing Linux commands with parameters to guest OS. In most of cases, administrators have to pass commands as a PowerShell variable also I had some bad experiences, as an example: run “Sed” with some special parameters. I have to use lot of double quotes and single quotes to pass command via Invoke-VMScript to guest OS.

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What’s PCoIP Ultra?

PCoIP Ultra represents our most advanced protocol enhancements yet, designed to meet the needs of the most demanding graphics-intensive applications while delivering the same lossless image quality and security our customers expect.

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Free VMware Monitoring By Veeam ONE Community Edition

Why we have to monitor our infrastructure? Because preventing unplanned down time and keep service performance, you know why! So monitoring needs monitoring tools. You have spent money to prepare infrastructure for your business, you have also pay for good monitoring tool. Veeam ONE is one of most popular and might be best monitoring tool for virtual infrastructure (vSphere / Hyper-V). You can download and install Veeam ONE for 30 days and use it but after trial period you need to buy license.

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Is There Any Tools Like VMware Tools for KVM?

All VMware guys know that guest OS needs drivers for
paravirtualized devices and the drivers provided by VMware as a package which called VMware Tools. VMware Tools is available for supported operating systems and also there is an open-source which called Open-VM-Tools and it’s available for modern Linux distributions and installed by operating system installer.

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DTrace Came to Windows

DTrace is a comprehensive dynamic tracing framework created by Sun Microsystems for troubleshooting kernel and application problems on production systems in real time. Originally developed for Solaris, it has since been released under the free Common Development and Distribution License (CDDL) in OpenSolaris and it’s descendant illumos, and has been ported to several other Unix-like systems.