Educational Episodes: Hyperconverged Infrastructure (HCI)

It is quite surprising how many companies migrate virtual workload nowadays. There could be different reasons – expiring contract with the service provider, move to the new office, consolidation of resources to minimize Capex and Opex, but in every case, companies need efficient and flexible V2V migration solution. Very often people think of migration in terms of moving data from one place to another. However, migration is much more than that. For instance, you would probably want VMs to keep the same IP addresses after the migration. Which means you need to consider stretching VLANs between the source and target locations in case you cannot migrate all VMs in particular subnet in one go. You must plan a network cutover too.

Everyone knows that, currently, the SSDs are one of the best storage devices that allow you to upgrade your architecture and significantly accelerate the performance of the computer. SSD accelerates the loading speed of your PC, applications opening and files searching speed, and generally increases the performance of your system. Despite the fact that solid-state drives are more expensive than standard hard drives, the performance improvement can hardly be overlooked.

To the extent that the trade press covers, meaningfully, the issues around digital information processing and technology, it tends to focus rather narrowly on the latter:  infrastructure.  The latest hardware innovation — the fastest processor, the slickest server, the most robust hyper-converged infrastructure appliance — tends to be the shiny new thing, hogging the coverage.

There are lots of posts regarding Hyper-V networking. But there doesn’t seem to be a single compiled and up to date guide covering fundamentals and some advanced topics alike. This article aims to fill that gap, without a wall of text but a few easy to understand diagrams, tables, and PowerShell snippets. We will take a look at Hyper-V’s basic networking concept, NIC teaming (Network Interface Card) and different approaches to let VMs (Virtual Machines) talk to specific VLANs or even VLAN trunks. The first article in the Hyper-V Networking 101 series will cover everything you need to know about virtual switches and NICs. The last post is planned as a real-world example: A way to implement a secure Wi-Fi (and/or wired) guest network on top of a virtual firewall.

Veeam Backup Entreprise Manager is an optional component that enables to consolidate several Veeam Backup & Replication server through a single pane of glass. Veeam Backup Enterprise Manager provides a web-based interface to centrally control and manage all jobs. You can edit job, monitor them and have a consolidated view of the reporting of all Veeam Backup & Replication server. In this topic, we’ll see how to configure Veeam Backup Enterprise Manager.

Microsoft continues the expansion of its services for Azure in Europe, this time with new capabilities related to Big Data: Azure Data Lake Analytics and Data Lake Store. These new services appear as server-less options for companies that already have resources in Azure and a large amount of data, allowing them to transform that data into valuable information.

A major force of infrastructure today is the possibility to use CI/CD. Understand, Continuous Integration and Continuous Deployment. To resume, these technologies, give the possibility to your developers to create/modify their codes, send them to GitHub for example, build it with Visual Studio Team Services (VSTS), save it on you registry (Azure Container Registry for me), manage the versioning, always with VSTS, send it to your Docker Swarm cluster as container et to finish, access it through a simple web interface.

Thanks to the previous part, we have SQL Server 2016 installed and configured. Before running the SCCM installation process, let’s remember the architecture we are implementing.

The reason for writing this post was a recent case from one of our customers, who ran into an issue when their SAN switch failed. The problem was that their VMs were generating an enormous amount of errors that were caused by the switching of active paths at the time of failover.