Virtually Sober

If there is free booze and Virtualization; I'm there!

Category Archives: General

Upgrading your home lab to 10GbE on the cheap!

Since building my hyperconverged home lab in Jan 2015 and finally sharing it on my blog Jan 2017 it has quickly become the most popular blog post by quite a margin. But one thing has always bothered me about the lab, with 1 SSD per ESXi host, and that’s the connectivity. Stuck in the slow lane at 1GbE it was always the limiting factor when configuring replication between hosts with Zerto and performing an initial sync. This was made even worse when I wanted to plug in a Rubrik r344 appliance (Supermicro 4 node server with 4 x 10GbE cards) because no matter how fast Rubrik can ingest the backup and live mount it back over NFS, 1GbE is as fast as it will go. Demonstrating live mounts over 1GbE certainly works, but it’s not the same wow factor as it is with 10GbE.

Something had to give. Do I build a new lab using motherboards with built-in 10GBase-T NICs? Read more of this post

See you next week at ZertoCON 2017!

Hi all,

Just a quick Friday update to say that I’ll be at ZertoCON next week as a blogger to catch up on all the latest things Zerto, attend some interesting sessions I have penciled in, and to catch the cool keynote from General Michael Hayden! And of course, there ain’t no party like a Zerto party! If you see me walking around feel free to grab me to talk about any scripts you have ideas for, as I’m always on the hunt for requests.

ZertoCON2017

If you haven’t already registered for the biggest virtualization event on the East Coast (are you crazy?!) then you still have time:

http://www.zerto.com/zertocon/

Tip: use the code ZHALF17 at checkout for a tasty last minute 50% discount.

Have a great weekend and hope to see you at ZertoCON 2017,

Joshua

Automated bulk IP address reconfiguration with Zerto Virtual Replication

When configuring IP address changes in Zerto Virtual Replication (ZVR) one common challenge is data entry. Yes, it’s certainly easy to configure the new IP addresses in the GUI, but when you are protecting hundreds of VMs with hundreds of vNICs then using the GUI can become a problem. Not only will it take you a long time to configure each vNIC one by one, but you are introducing the risk of human error.

editvnic

To solve this challenge I created 2 PowerShell scripts to fully automate re-IP addressing in bulk. The first script “ZVR Bulk Re-IP Export v1.ps1” exports a list of every protected VM vNIC to a CSV with a column for each configuration item possible. You will need to protect every VM first for its vNIC info to be exported, edit the variables at the top of script for your environment, then run it to get the below output: Read more of this post

Catching Ransomware infections with a Honeypot script & integration into Zerto Virtual Replication

Through my work at Zerto I’ve delivered multiple presentations and webinars on ransomware and how Zerto enables you to recover VMs, files and folders from seconds before the data was encrypted to minimize data loss and avoid having to pay a ransom. One question I’ve often been asked is how do I know what point in time my files were encrypted? And in one recent presentation a customer told me that their user didn’t tell IT until 3 days after the infection had occurred!

This got me thinking on how we could alert on this which led me to evaluate the different ransomware honeypot example scripts available online. These scripts validate a file placed on a user mapped share, where everyone has write permissions, against a gold or witness copy to catch the ransomware infection then perform a set of actions when found. In testing the multiple examples I struggled to find one that coped with the file itself being changed, I.E the extension changing, that ran consistently and none indicated this alert in the Zerto journal so I decided to write an example that did all of this and more. Read more of this post

Introduction to my blog

Hi and welcome to my blog.  I will be blogging about common queries I often come across in my role as Solutions Engineer for Zerto, as well as cool Zerto features, but I will mainly cover the many different PowerShell scripts I write in my spare time to extend the functionality of Zerto. Some of the scripts I will be releasing as standalone tools. For these I will create a new page dedicated to each tool to go into more detail.

I will say this many times but I can’t stress enough that all scripts on this blog are not supported by Zerto in any shape or form. I am however happy to provide ad-hoc support if you have any questions or issues and I recommend using the comments section on the relevant post to ask.

I might also be tempted to throw in some reviews of the odd Virtualization event and subsequent party. As a Yorkshireman I definitely enjoy a few free drinks!

IMAG0492

Don’t worry I didn’t get through all of these :-), but I certainly did try! If you have any spcecific PowerShell scripts you would like me to cover in a blog post feel free to contact me using the form below:

I’m looking forward to sharing some really good content! Thanks,

Joshua