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.

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Linux, RDMA, StarWind rPerf

PowerShell is a command line (CLI) scripting language developed by Microsoft to simplify automation and configuration management, consisting of a command-line shell and associated scripting language. It’s a (huge) evolution (or better a revolution) from the original DOS batch language (still supported in latest Windows OS with the cmd.exe command), and it’s really better compared to the different previous attempts to replace the batch language (like Windows Script Host).

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CLI, Linux, PowerShell, PowerShell Core

This article describes the deployment of a Ceph cluster in one instance or as it’s called “Ceph-all-in-one”. As you may know, Ceph is a unified Software-Defined Storage system designed for great performance, reliability, and scalability. With the help of Ceph, you can build an environment with the desired size. You can start with a one-node system and there are no limits in its sizing. I will show you how to build the Ceph cluster on top of one virtual machine (or instance). You should never use such scenario in production, only for testing purposes. The series of articles will guide you through the deployment and configuration of different Ceph cluster builds.

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Ceph, Ceph cluster, Debian, enterprise storage, Linux, open source, OSD, Scalability, SDS, software-defined storage

This article describes the new StarWind Virtual Storage Appliance, which was released on 26^th of April. StarWind has always been a Windows native solution. However, due to market trends and the huge interest of our customers, we have decided to work in Linux direction. The main goal of the article is to show what StarWind VSA can do for clients and how you can work with it.

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ESXi, HTML 5, Hyper-V, KVM, Linux, mirroring, vCenter, Virtual Machine, Virtual SAN, Virtual Storage Appliance, VMs, VSA, VSAN, vSphere plugin

Linux virtual machines in a cloud service like Amazon Web Services (AWS) or Microsoft Azure have become a very common practice. You can find pretty much anything that you need regarding Linux applications, including appliances or even PaaS technologies that actually work with Linux in the backend. Now Ubuntu has decided to go a bit further than that and offers an OS version with a customized kernel for AWS.

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Amazon EC2, Amazon Linux AMI, Amazon Web Services, AWS, AWS-tuned kernel, Elastics Network Adapter, ENA, Linux, Microsoft Azure, Ubuntu

The past month has been categorized as something of a performance and upgrades challenge as one of the constant calls I hear is “application X is going to slow”, of course, a month ago it was fine but today it isn’t and normally this is just down to increasing load. One of the common fixes for increasing load is to add more vCPU and RAM but often that can cause its own set of problems especially when NUMA boundaries are crossed and when vCPU contention pushes things a little too far.

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Amazon, AWS, CentOS, Container, Docker, Dockerfiler, ESXi, file shares, Linux, Photon OS, RedHat, repository, VMs, VMware, vSphere

On this blog, we reviewed a couple of times Azure Backup capabilities and integration with, what Microsoft considered a while back, strong rival: VMware (“Azure Offers Backing Up VMware VMs with a Freeware Tool”). And now they added one more interesting and highly valuable feature, Azure Backup will be able to support backing up applications in Linux.

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Azure Backup, Azure Linux Agent, Linux, Linux Integration Services, LIS, VM backup

There has certainly been no lack of surprises coming from Redmond over the past year or so. As soon as Satya Nadella took the reins of Microsoft it has seemed like a barrage of Microsoft news hitting the wires – but this news does not fall within the traditional line of Microsoft. Open sourcing .net, open sourcing PowerShell, and finally, providing a means to run MS SQL Server on Linux. Don’t get me wrong – this is great news for the IT world. Cross compatibility, platform-independent – these words are words that excite me. Microsoft has taken notice of the dominance of the cloud, more so, the dominance of Linux within the cloud. Certainly, releasing the ability to take a Linux instance within the cloud and run our SQL Server on it is a step in the right direction – for Microsoft, and for us as IT professionals.
Just like PowerShell, the MS SQL Linux deployment supports a limited number of distributions – more specifically Red Hat Enterprise Linux 7 and Ubuntu Server 16.04.

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Linux, Microsoft, MS SQL Linux, PowerShell, SQL Server, sqlcmd, Ubuntu

Big news: this year Microsoft has joined the Linux Foundation as a platinum member.

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.NET, Linux, Linux Foundation, Microsoft, SQL Server, SQL Server 2016 Service Pack 1, Windows

We will see how to install and use tools to manage your SQL Servers. We will use the version 13, who is compatible with Ubuntu. You can use these drivers from SQL Server 2008 to 2016, and it’s compatible with Azure SQL Database too.

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Linux, Microsoft, ODBC Drivers, SQL Server, Ubuntu