Top 10 Sessions at VMworld

Top 10 Sessions at VMworld

Top 10 Sessions at VMworld

The VMworld 2018 Schedule Builder is now live! We’re not biased, but the vSAN and HCI sessions are going to be some of the hottest seats of the week and space is filling up fast. If you’re sitting on the fence about hyper-converged infrastructure, looking to deploy the latest applications on cost-efficient infrastructure, or wanting The post Top 10 Sessions at VMworld appeared first on Virtual Blocks .

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HCI Bench – vSAN performance tool – Part 3: Tests and Results


Once you hit the “Test” button you can go watch some movies. It’s take a time depend on your HW. For me it was couple of hours.

  • It starts with VM deployment

  • It will create bunch of VM’s (each 4vCPU, 4GB of RAM, 9xHDD (total 250GB))

Testing was done by using Vdbench VM with input argument “-fvdb-8vmdk-100ws-4k-70rdpct-100randompct-8threads


Tested VSAN configuration:

  • 4x Node configuration with 10gigabit connection
  • VC build: VMware vCenter Server 6.5.0 build-7515524

Each ESXi host:

  • Build: VMware ESXi 6.5.0 build-7388607
  • CPU: Intel(R) Xeon(R) Silver 4114 CPU @ 2.20GHz ( Packages: 2, Cores: 20 )
  • Memory: 256 GB
  • Server vendor/model: Dell Inc. PowerEdge FC640
  • VSAN Disks:
    • SSD: Local TOSHIBA Disk (naa.58ce38ee2000c0ad)
      • TOSHIBA PX05SMB080Y
      • 800 GB
    • SSD: Local TOSHIBA Disk (naa.58ce38e06c8a274d)
      • TOSHIBA PX05SRB192Y
      • 1920 GB
    • SSD: Local TOSHIBA Disk (naa.58ce38e06c8a26fd)
      • TOSHIBA PX05SRB192Y
      • 1920 GB
    • SSD: Local TOSHIBA Disk (naa.50000397cc89cd79)
      • TOSHIBA PX05SMB080Y
      • 800 GB
  • After Vdbench testing is finished, the results are collected from all VM’s. And you can view the result at


  • And go through the easy-run-* directories and click on first *.txt file

  • In the .TXT file is summary results

In this saved .zip file are also the graphs with more details. Same what you can see on web http://<YOUR_BENCHMARK2_IP>:8080/results/


Just few of them..

Per disk

Almost in each graph section you can click and get full graphs.

Text results

Also on a web and in the .ZIP file are result in text form…

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Vdbench distribution: vdbench50406 Wed July 20 15:49:52 MDT 2016
For documentation, see 'vdbench.pdf'.
16:52:41.075 Created output directory '/root/vdbench/output'
16:52:41.106 input argument scanned: '-fvdb-8vmdk-100ws-4k-70rdpct-100randompct-8threads'
16:52:41.171 Adjusted default JVM count for host=localhost from jvms=1 to jvms=8 because of iorate=max and a total of 8 sds.
16:52:41.311 Starting slave: /root/vdbench/vdbench SlaveJvm -m localhost -n localhost-10-180314- -l localhost-0 -p 5570 -d86
16:52:41.333 Starting slave: /root/vdbench/vdbench SlaveJvm -m localhost -n localhost-11-180314- -l localhost-1 -p 5570 -d86
16:52:41.363 Starting slave: /root/vdbench/vdbench SlaveJvm -m localhost -n localhost-12-180314- -l localhost-2 -p 5570 -d86
16:52:41.385 Starting slave: /root/vdbench/vdbench SlaveJvm -m localhost -n localhost-13-180314- -l localhost-3 -p 5570 -d86
16:52:41.408 Starting slave: /root/vdbench/vdbench SlaveJvm -m localhost -n localhost-14-180314- -l localhost-4 -p 5570 -d86
16:52:41.432 Starting slave: /root/vdbench/vdbench SlaveJvm -m localhost -n localhost-15-180314- -l localhost-5 -p 5570 -d86
16:52:41.470 Starting slave: /root/vdbench/vdbench SlaveJvm -m localhost -n localhost-16-180314- -l localhost-6 -p 5570 -d86
16:52:41.504 Starting slave: /root/vdbench/vdbench SlaveJvm -m localhost -n localhost-17-180314- -l localhost-7 -p 5570 -d86
16:52:42.427 All slaves are now connected
16:52:45.108 Starting RD=run1; I/O rate: Uncontrolled MAX; elapsed=3600 warmup=1800; For loops: None

Mar 14, 2018 interval i/o MB/sec bytes read resp read write resp resp queue cpu% cpu%  rate 1024**2 i/o pct time resp resp max stddev depth sys+u sys
16:52:46.275 1 8869.00 34.64 4096 70.24 3.055 2.808 3.639 312.221 12.932 27.3 22.5 4.2
16:52:47.047 2 27285.00 106.58 4096 69.45 2.133 1.826 2.830 29.948 3.173 58.3 20.5 3.5
16:52:48.077 3 29975.00 117.09 4096 70.13 2.118 1.781 2.912 46.267 3.361 63.5 13.6 2.4
16:52:49.065 4 30425.00 118.85 4096 69.48 2.089 1.716 2.938 30.170 3.152 63.6 6.4 1.1
16:52:50.068 5 31824.00 124.31 4096 70.48 2.003 1.651 2.842 59.798 3.233 63.7 3.2 0.7
16:52:51.060 6 31044.00 121.27 4096 69.51 2.048 1.700 2.840 52.844 3.213 63.5 13.5 1.8
16:52:52.066 7 33020.00 128.98 4096 70.06 1.933 1.629 2.643 26.811 2.974 63.9 5.8 1.0
16:52:53.063 8 32574.00 127.24 4096 69.99 1.954 1.629 2.713 28.718 3.070 63.7 3.7 0.7
16:52:54.057 9 32823.00 128.21 4096 69.90 1.947 1.609 2.732 23.752 3.194 63.9 3.7 0.7
16:52:55.056 10 33120.00 129.38 4096 69.56 1.926 1.599 2.673 24.818 3.125 63.8 2.6 0.7
16:52:56.051 11 32846.00 128.30 4096 69.28 1.928 1.639 2.580 24.851 2.875 63.4 3.8 1.0
16:52:57.059 12 32356.00 126.39 4096 69.44 1.976 1.672 2.669 30.840 3.177 63.8 2.6 0.3
16:52:58.080 13 34012.00 132.86 4096 69.92 1.905 1.575 2.670 28.106 3.177 64.8 2.0 0.7
16:52:59.057 14 33399.00 130.46 4096 70.01 1.877 1.570 2.594 38.115 3.134 62.6 3.6 1.6

Related parts:

HCI Bench – vSAN performance tool – Part 1: Installation
HCI Bench – vSAN performance tool – Part 2: Configuration
HCI Bench – vSAN performance tool – Part 3: Tests and Results

HCI Bench – vSAN performance tool – Part 2: Configuration

Benchmark VM Configuration

Default configuration

  • Once the VM is deployed turn it on.
  • Go to your browser and navigate to your benchmark VM “Benchmark2” in my case. And enter your “root” password what you set during OVF deployment.http://<YOUR_BENCHMARK2_IP>:8080/

Continue reading “HCI Bench – vSAN performance tool – Part 2: Configuration”

HCI Bench – vSAN performance tool – Part 1: Installation

What is HCI Bench


HCIBench stands for “Hyper-converged Infrastructure Benchmark”. It’s essentially an automation wrapper around the popular and proven VDbench open source benchmark tool that makes it easier to automate testing across a HCI cluster. HCIbench aims to simplify and accelerate customer POC performance testing in a consistent and controlled way. The tool fully automates the end-to-end process of deploying test VMs, coordinating workload runs, aggregating test results, and collecting necessary data for troubleshooting purposes.

HCIBench is not only a benchmark tool designed for vSAN, but also could be used to evaluate the performance of all kinds of Hyper-Converged Infrastructure Storage in vSphere environment.


User Guilde:




  • vSphere 5.5 environment or higher with vCenter (doesn’t support deployment on a standalone ESXi host).
  • Good to have DHCP on VLAN where the benchmark VM will be deployed.
  • vMotion configured




  • Select name and location for your VM


  • Review details

  • Accept license agreement
  • Select storage. Put it outside the VSAN datastore

  • Select destination network
    If there’s no DHCP Server on the VLAN which Vdbench client VMs will be deployed on, or the VLAN for Vdbench client VMs can not be routed from the Public Network, map this Network to the VLAN and Enable DHCP Service in the Web UI if needed

  • Customize the VM. As I am using DHCP in my LAB so all Network fileds are empty. And at the bottom enter your password for root.

  • Review configuration data before deployment


  • Hit “Finish” and watch progress in “Recent Tasks”



Related parts:

HCI Bench – vSAN performance tool – Part 1: Installation
HCI Bench – vSAN performance tool – Part 2: Configuration
HCI Bench – vSAN performance tool – Part 3: Tests and Results




VMware User Group Czech Republic – meeting – 4.12.2017

It’s almost a 2months back, but you know.. a lot of other stuff was more important.



8:00 8:50 Registration / Welcome tea/coffee
8:50 9:00 VMUGCZ Leader’s – Welcome…
9:00 9:45 Duncan Epping – “(r)Evolution of vSAN” – Keynote speaker
9:50 10:35 Andrey Zhelezko – Veeam and VMware Best Practices 2017 edition
10:35 10:55 Coffee break
10:55 11:40 Mark Brookfield – Moving Code from Dev to Prod using vRealize Automation and Code Stream
11:45 12:30 G2 server CZ – Michal Hampl (Chief Technology Officer), Martin Javorský (Infrastructure Director),
Vojtěch Morávek (Chief Product Officer) – Jak děláme cloud v G2
12:30 13:30 LUNCH
13:30 14:15 David Pasek – CLI for VMware Distributed Switch (Community project)
14:20 15:05 HPE – presentation
15:10 15:55 Andrea Mauro – The dark side of stretched cluster
15:55 16:15 Coffee break
16:15 17:00 Runecast – presentation
17:05 17:50 Vladan Laxa – vSphere Automation

Speakers Experts:

Duncan Epping:

Chief Technologist @VMware | Author of , Essential Virtual SAN, Clustering Deepdive | Hyper-Converged, Software-Defined Storage, vSphere

Mark Brookfield:
PSO Consultant @VMware specialising in cloud infrastructure & management. vExpert, VCAP5-DCA/DCD, VCP-DT, MCITP, MCSE, CCNA, ITIL. Tweets are my own.

Andrew Mauro
ITPro. Accreditations: vExpert 2010-17,MVP 2014-16,NTC.Some certifications: VCDX-DCV,VCAP-*,VCP-*, MCSA,MCSE,MCITP,CCA,NPP. VMUG IT Co-Founder and board member.

 David Pasek
An IT Pro specializing in next gen computing (virtualized compute/storage/networking). IT geek who knows he know nothing but everyday learns. VCP,VCAP,VCDX #200

Vladan Laxa
virtualization enthusiast and opensource fan, VCP6.5-DCV

Automated VMware expertise – Proactively use VMware KBs, best practices and security hardening guidelines to protect your environment

Official agenda:

And some photos from event:

Duncan Epping – “(r)Evolution of vSAN” – Keynote speaker

Coffee break

Mark Brookfield – Moving Code from Dev to Prod using vRealize Automation and Code Stream

G2 server CZ – Michal Hampl (Chief Technology Officer), Martin Javorský (Infrastructure Director), Vojtěch Morávek (Chief Product Officer) – Jak děláme cloud v G2

David Pasek – CLI for VMware Distributed Switch (Community project)

HPE – presentation

Andrea Mauro – The dark side of stretched cluster

Runecast – presentation

And a lottery 🙂

VCSA – vCenter Server Appliance 6.5 – backup


  • Login to admin environment of vCenter appliance



  • Choose backup



And in wizard fill all the info:

  • Protocol [HTTPS or HTTP or SCP or FTPS or FTP]
  • Location [server_IP_or_DNS/EmptyDirectory]
  • Port [if you use standard ports for protocols above, then you can skip]
  • UserName
  • Password

Continue reading “VCSA – vCenter Server Appliance 6.5 – backup”

CZ VMUG – Praha – 6.12.2016

Few days back was 2nd CZ VMUG.


Katarina Wagnerova [@_KatkaW_] presenting her way to VDM (Virtual Design Master). This was an awesome presentation. Really breath taking. Where she found all the time to do it in such a short time.




Paudie ORiordan [@oriorp] was doing live scripted demo of 2node vSAN. Amazing presentation from the VMware guy. Who know a lot about VSAN.



Presentation of “Metro Cluster HA or DR“ was from Czech TAM’s David Pasek  (VCDX200) and Standa Jurena. A lot of information from the field. And they give us a lot of information from Metro Cluster HA and DR. At the end of the presentation you should know the main reasons for “what to choose” Metro Cluster HA or DR.



Veeam presentation was full of practical information about the new version of their backup software Veeam Backup & Replication presented by Boris Mittelmann.



at the end I want to thank you to our VMUG leaders..

VMware Workstation Pro 12.5 release

What’s New

VMware Workstation 12 Pro version 12.5 is a free upgrade for all VMware Workstation 12 Pro users, it adds support for the following operating systems:

  • Windows 10 Anniversary Update
  • Windows Server 2016

VMware Workstation 12 Pro Version 12.5 also contains bug fixing, security updates and performance improvements.


VMware Workstation 12 Pro Version 12.5 | 13 SEP 2016 | Build 4352439
Last updated: 13 SEP 2016

VMware Workstation Pro Documentation

Release notes

source: official site

new NUC in my home lab


Home LAB starts to grow. More and more test lab VM’s, nested ESXi hosts etc. So  I was looking for another node. Dont want to spent a fortune so the price was the key. I had also other minimum requirements as 32GB of RAM and power consumption. After few weeks of searching I decide to buy a Intel NUC.

Components added to my #HOMELAB:

  • Intel 6th Generation NUC NUC6i3SYH
  • 2x Kingston 16GB DDR4 2133MHz SODIMM
  • USB3 TP-LINK  UE300 gigabit NIC
  • 8GB San Disk Cruzer Fit
  • HDMI to VGA adapter


Disclaimer: The Intel NUC is not on VMware’s official Hardware Compatibility List (HCL)

2nd NIC for my NUC

Intel NUC is the best piece of HW for HOME mini-LAB. But once you start grow you need more network bandwith. And one pNIC is not enough. After few sec of googling I find great page DevTTY. Where is a lot of information about “supported” USB NIC for your Intel NUC. I choose TP-LINK UE300 because I had a couple of TP-LINK (3210, 5426) switches and they are doing great job.

So I ordered TP-LINK UE300 USB 3.0 network card. Once it was delivered to me, I connected it to the NUC. Then download the driver from DevTTY and upload it to one of my datastore.  No maintenance, reboot is needed. The only thing you need to do is to change the “Host Image Profile Acceptance Level”  to  “Community supported”.

Host Image Profile Acceptance Level-Community

Then just log in to the ESXi console and install VIB file with command:

Continue reading “2nd NIC for my NUC”