Educational Episodes: Hyperconverged Infrastructure (HCI)

Nowadays we often meet systems with RDMA connections configured for increasing the performance of the system. Also, it’s not a news that we can meet environments with the different OS installed. In our case, we will be looking into a vital aspect of the process – the performance of RDMA connections. So, let’s have a look at the configuration of RDMA and what we need for building and testing RDMA connections, problems that you possibly can face, and the final part is making it perform in a way that will make us happy. So, let’s start.

Kemp provides a product called LoadMaster that provides a load balancer. Load Master is available in physical and virtual appliances. The virtual appliance is also called VLM (Virtual LoadMaster). LoadMaster can be deployed either in On-Prem and in Microsoft Azure. Today I wanted to show you how to deploy a VLM and the first configuration steps.

Deduplication is a cool technique that some admins use when it comes to saving storage space. No wonder. By deduping, you can gain some extra storage even without deleting anything. Everyone seems to use it, but how does that thing, actually, work? In this article, I’ll look under dedupe hood to understand better its operating principles. Why one may need this? You see, you always can make the most of things once you understand how they work. I believe this principle to apply to almost everything! So, here’s why I examine such a common storage optimization technique as deduplication in this article. True, that’s up to you to dedupe or not. Today, I won’t discuss whether you need deduplication at all. Here’s a good article on this matter.

Does low latency, high throughput & CPU offloading require RDMA? What? Blasphemy, how dare we even question this? In my defense, I’m not questioning anything. I am merely being curious. I’m the inquisitive kind. The need for RDMA is the premise that we have been working with ever since RDMA became available outside of HPC InfiniBand fabrics. For us working in the Windows ecosystem this was with SMB Direct. Windows Server 2012 was the OS version that introduced us to SMB Direct, which leverages RDMA.

In this article, I discuss what VSAN from StarWind for vSphere is and how to set it up on the hardware RAID. StarWind VSAN for vSphere is a Software-Defined Storage solution that is designed specifically for vSphere environments. It comes as a preconfigured VM template, so just a couple of quick steps are needed to start running your vSphere environment on StarWind VSAN: download the solution, deploy it, and “play”. Here, I want to share some tips and tricks on working with VSAN for vSphere.

Sometimes, guys running home labs do not have licenses for Remote Desktop Services (RDS). Well, that’s not a big deal, you know, because Microsoft provides the 120-day grace period for the platform! However, one day the time runs out and RDS server breaks all the client connections. That day, admins are to choose between reinstalling the server and cheating a bit to reset the 120-day RDS grace period.

This article describes StarWind Storage Gateway for Backblaze as a solution to make local backup applications operate seamlessly with a cloud object storage. This all-in-one solution combines the ability of a backup storage pool to offload the backup data to Backblaze B2 cloud storage, and immediately retrieve it – all at a bargain price.

Sometimes, you badly need your ESXi VM data, but that thing just cannot be powered on for some reason! Well, you can try starting that VM one more time according to this article and access the data with a little luck. But, if you are out of luck and the VM is dead, you need another method to extract its VMDK file content.

One new announced feature in Windows Server 2019 is Storage Migration Service (SMS). SMS enables to ease drastically the migration from a file server to another. Moreover, SMS is fully manageable from Windows Admin Center as Microsoft has released an extension for this feature.