Davoud Teimouri

Virtualization & Datacenter

Category: Server Virtualization

VMware vSphere, Microsoft Hyper-V, Citrix Xen Server, Oracle VM Server, Red Hat KVM.

[Review]: Xen Project Hypervisor 4.11

Xen Project

What’s New in the Xen Project Hypervisor 4.11 The Xen 4.11 release has followed this approach by delivering more PVH related functionality: PVH Dom0 support is now available as experimental feature and support for running unmodified PV guests in a PVH Container has been added. In addition, significant chunks of the ARM port have been […]

5,466 total views, no views today

[Review]: What’s Remote Direct Memory Access(RDMA)?

Remote Direct Memory Access

Remote Direct Memory Access (RDMA) provides direct memory access from the memory of one host (storage or compute) to the memory of another host without involving the remote Operating System and CPU, boosting network and host performance with lower latency, lower CPU load and higher bandwidth. In contrast, TCP/IP communications typically require copy operations, which add latency and consume significant CPU and memory resources.

1,407 total views, no views today

[Review]: vSphere 6.5 Update 2

vCenter 6.5 Update 2

Today, VMware has announced vSphere 6.5 U2 with lot of new features and fixes on components specially on ESXi and vCenter. vSphere 6.5 U2 has some new features that backported from vSphere 6.7 . VMware recommended upgrading vSphere 5.5 to vSphere 6, 6.5, so vSphere 6.5 U2 is good choice for upgrade virtual infrastructure with less impact, because many hardware that supporting vSphere 5.5, don’t compatible with vSphere 6.7 . Upgrading to vSphere 6.5 Update 2 from vSphere 5.5 requires a minimum version of vSphere 5.5 Update 3b prior to performing the upgrade.

4,769 total views, no views today

[Review]: VMware Virtual SAN (vSAN) TCO and Sizing Calculator

vSAN Hybrid TCO and Sizing Calculator - Sizing Results

VMware vSAN Hybrid TCO and Sizing Calculator Virtual SAN or vSAN is a software-defined storage (Hyper Converged) for VMware vSphere environments. Main goal of sing vSAN in VMware vSphere environments, is reducing implementing cost. So calculating TCO and device sizing will help to achieve better results. As vSAN technology owner, VMware has provided an online […]

8,570 total views, no views today

[Review]: Oracle VM Server for SPARC 3.5.0.1

Oracle VM

Oracle VM is Oracle virtualization platform designed for x86 and SPARC architectures. Linux, Windows and Solaris can be run as virtual machine on this virtualization platform. In addition to solutions that are hypervisor-based, Oracle also offers virtualization built in to hardware and Oracle operating systems to deliver the most complete and optimized solution for your entire computing environment.

1,453 total views, no views today

ESXi PCI Passthrough – Large VM Memory (MainHeap) BUG!

ESXi PCI Passthrough This is a combination hardware and software feature on hypervisors to allows VMs to use PCI functions directly And we know it as VMDirectPath I/O in vSphere environment. VMDirectPath I/O needs some requirements to work perfectly, please read this KB for more information, as we read it! https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2142307 There is also some […]

10,809 total views, no views today

VMware Tools Client – Interact with a VM without Network Connectivity

VMware Tools Client - Main Window

VMware Tools Client VMware Tools Client is a beta tools to interact with VMs without network connectivity. May know, there is some vSphere API that developers can write some codes and developing their tools for vSphere environments. VMware Tools Client written by Pierre Lainé is a useful tool to managing virtual machines via vSphere Guest […]

8,392 total views, no views today

Find, Convert And Compare, VMware Virtual Machine And Windows Guest UUID

What’s UUID? Each virtual machine has UUID and it will appear on OS as guest UUID too. A universally unique identifier (UUID) is a 128-bit number used to identify information in computer systems, the 16 bytes of this value are separated by spaces. Microsoft uses the term globally unique identifier (GUID), either as a synonym […]

2,703 total views, no views today

OpBot – Virtual Assistant For Your Virtual Datacenter – New Release

Architecture

You may read previous post about OpBot on this blog and if you didn’t check it, here is the previous post: OpBot – Virtual Assistant For Your Virtual Datacenter Now, new version of the virtual assistant is available to download and try it as free software for limited period of time. There is some changes […]

4,358 total views, no views today

RVTools 3.9.2

You may know this great free tool that I guess, most of VMware vSphere administrators used it for create reports from their environment. RVTools is a Windows .NET application and you need to install .NET4 for run the latest version. 4,851 total views, no views today Davoud TeimouriDavoud Teimouri is as a professional blogger, vExpert 2015/2016/2017/2018, […]

4,851 total views, no views today

NMI purple diagnostic screen on HPE ProLiant Gen8 servers

It seems, there is an issue on HPE G8 servers with the below ESXi versions: ESXi 5.5 Patch 10 ESXi 6.0 Patch 4 ESXi 6.5 Intel® IOMMU’s (aka VT-d) interrupt remapper functionality has been changed in the above versions and you need to enable it manually: 5,646 total views, no views today Davoud TeimouriDavoud Teimouri is […]

5,646 total views, no views today

Nakivo Backup & Replication 7 – Download Beta Version

Nakivo Backup & Replication 7

Finally, the new version of Nakivo is available to download as beta version. The new version has many new features and improvements that we have reviewed them on the previous posts: Nakivo 7 Beta! Hyper-V Supported Now! Nakivo Backup & Replication 7 – New Features Nakivo Backup & Replication 7 – Skip Swap File! Nakivo […]

4,767 total views, no views today

OpBot – Virtual Assistant For Your Virtual Datacenter

What’s OpBot? OpBot is a virtual assistant for VMware vSphere from Opvizor. OpBot is a full featured OpBot, that can manage VMware vSphere via natural chat commands from any device and any place. You can also connect OpBot with Opvzor Performance Analyzer, which unleashes amazing new remote troubleshooting and analysis possibilities. OpBot can give you […]

4,484 total views, no views today

Oracle VM Server – Log Files

Oracle VM

Why You Need Log Files? Log files are keys to resolving problems in any IT system, why?! You are unable to troubleshooting without having log files. Any enterprise system must have logging system and logging is very important to IT administrators. Log location is very important for IT administrators even very importantly. Oracle VM Server […]

3,265 total views, no views today

Oracle VM Server – Memory Size of the Management Domain (Dom0)

Oracle VM

Oracle VM Server installer using the below algorithm to set default memory size for dom0: dom0 Memory = 502 (MB) + (Physical Memory (MB) * 0.0205) As an example, your physical server has 256 GB memory, dom0 needs to 5.7 GB memory. If you didn’t assign enough memory to dom0, you will face with serious […]

4,024 total views, no views today

Backup Solutions – Oracle VM

You will need to a backup solution in virtual environments same as physical environments. There is many backup solutions for VMware vSphere, Nakivo or Veeam are third-party solutions. Also Veeam is best third-party solution Hyper-V platform. But if you are implementing Oracle VM, you need to know, what is best backup and restore solution for […]

4,733 total views, no views today

NMONVisualizer – Free ESXTOP Tool

NMONVisualizer NMONVisualizer is a Java GUI tool for analyzing nmon system files from both AIX and Linux. It also parses IOStat files, IBM verbose GC logs, Windows Perfmon & ESXTop CSV data and JSON data. Download the latest version (2016-02-29).   Documentation Click here for an overview presentation. 4,600 total views, 4 views today Davoud TeimouriDavoud Teimouri […]

4,600 total views, 4 views today

Teimouri.net © 2012 Frontier Theme