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Ceph-all-in-one
Posted by Alex Bykovskyi on August 16, 2017
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Introduction

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.

 

check the ceph cluster status

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3 Generations of My Homelabs
Posted by Askar Kopbayev on August 15, 2017
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Sooner or later every single IT guy comes to the idea of having some lab. There are a million reasons why you would need a lab: learning new technologies, improving skills, trying crazy ideas you would never dare to try in the production network, you name it. Even though it is a work-related activity for most home labbers this is just another hobby for many of us.  That’s why people spend so many hours of their personal time building the homelab, investing significant funds into new hardware, thoroughly planning its setup, looking for a help in online communities or sharing their experience to help others. There is a whole universe of home labbers and I am happy to be part of this community.

In this post, I would like to share my experience with 3 generations of home labs I have had so far and the thoughts about next generation.

high-level network diagram

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Disaster Recovery and why hypervisor HA may not be best
Posted by Gary Williams on August 10, 2017
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A lot of the time I see and speak to people asking about DR solutions when what they really want is HA with a few backups so I wanted to use a blog article to go through some of the technical terms used in conjunction with DR.

When people say “I want DR”, I’ll ask them about the sort of disasters they are looking to protect against and most of the time the response is “I want to keep working if my hypervisor crashes”.

Linux VMs restart

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StarWind Cloud VTL for AWS and Veeam
Posted by Alex Khorolets on August 9, 2017
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Introduction

These days, almost every company that stores its own data on-premise, will it be the virtual machines, databases or just plain files, needs to be sure that this data won’t be lost due to some accident or human error. More to say, backup solutions are usually requested to be flexible, feature-rich and utilize different storage-optimization technologies for increased cost-efficiency.

The additional requirement of the long-term data retention significantly increases the overall cost of the final solution, which resulted in an increased demand for public clouds like Amazon Web Services and Azure as a backup repository for their data.

StarWind Cloud VTL for AWS and Veeam creates an additional backup storage tier, fulfilling the “3-2-1 backup” strategy, and gives the ability to send older backups to AWS S3 and Glacier. Virtual tape backups are also self-protected against ransomware since all data is being sealed into “containers” that cannot be directly affected by the malicious software.

StarWind Cloud VTL configuration

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Azure Stack in GA. Part II: Deployment Models and How Much is Going to Cost
Posted by Augusto Alvarez on August 8, 2017
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I’ve recently covered in my previous post about Azure Stack being finally released to the Integration Systems (Dell EMC, HPE and Lenovo). We covered in the article the clarification of what Azure Stack actually means, features and functionalities available. In this second part will go beyond, reviewing how much is going to cost, deployment alternatives, Azure integration, and the disconnected scenario.

Azure Stack

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Free SMB3 Failover File Server on Microsoft Hyper-V Server 2016
Posted by Ivan Ischenko on August 3, 2017
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In the previous article, we have created a free SMB3 file server. I decided to proceed with the testing of Microsoft Server Hyper-V 2016 free version possibilities. In this post, I will try to create Highly Available devices with StarWind Virtual SAN and then create a Microsoft Failover Cluster to make a Highly Available File Server.

We are using 2 servers with Microsoft Hyper-V 2016 added into a domain (Hyper-V-1; Hyper-V-2). Client node with Windows Server 2016 (2016-client-test).

Microsoft Hyper-V 2016 servers added into a domain

 

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How to join VMware vCenter server appliance (VCSA) 6.5 to the Microsoft Active Directory (AD) Domain
Posted by Vladan Seget on August 1, 2017
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VMware Photon OS has been the latest OS used for vCenter Server Appliance 6.5. This is the latest move from SUSE Linux Enterprise Server (SLES) as VMware wants to own the Operating system (OS) and manage its development cycles and patches releases.

Things that aren’t possible on Windows OS or SLES. That’s why VMware used Photon Linux and continues to develop Photon OS which is optimized for VMware platforms.

Verify the domain status

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Free SMB3 File Server on Hyper-V 2016
Posted by Ivan Ischenko on July 28, 2017
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Disclaimer: 

This series of articles will guide you through creating a free SMB 3.0 file server in Microsoft Windows Hyper-V 2016. Hyper-V 2016 is an absolutely free GUI-less version of Microsoft Windows Server for virtual machines.

Hyper-V 2016 Server has been specifically developed and created only for virtual machines. According to Microsoft EULA, StarWind does not recommend repeating the steps below, because this process is a violation of the license agreement. The reason why we can create SMB File Share on Hyper-V 2016 is simple: all Windows servers require SMB 1/2/3 to work, and Hyper-V 2016 is not an exception. But it does not mean you should create any unsupported Microsoft services on GUI-less Hyper-V 2016.

Introduction

As I mentioned before, Windows Hyper-V 2016 supports SMB3 file server. However, the license agreement states that users are prohibited from doing that. For example, if you really need fast SMB 3.0 file server for your home lab, you can repeat the steps below, but only for testing purpose. So, let’s start creating SMB3 file server on Microsoft Hyper-V 2016.

SMB 3.0 file server creation

 

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Windows Server Core configuration. Part 2: Hyper-V role installation
Posted by Alex Khorolets on July 25, 2017
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In the previous article, we have covered the basics of Microsoft Windows Server Core installation. After configuring the operating system and specifying the networks and storage for the future configuration, there are few more things left.

Our next step is to install and configure the Hyper-V role.

Installation of the Hyper-V role by itself is extremely simple. You need to open the PowerShell window by typing in “Powershell” command in the command prompt. In order to install the Hyper-V role through the PowerShell, enter the following:

Installing the Hyper-V role

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SQL indexes 101
Posted by Mikhail Rodionov on July 21, 2017
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When it comes to SQL Server database indexes there is a wide scale of variation in depth of knowledge on this important topic among IT professionals leveraging SQL Server power while not necessarily being specialist DBA. Let’s discuss SQL server indexes a bit here with non-SQL DBAs/non-DB developers audience in mind covering why and how sides of the subject.

I still remember one of my interviews where I was asked something along the lines of “what comprises a database?” Being an experienced IT professional, I’ve instantly said something about rows and columns forming tables and entities within those, and something about relations between entities/tables and once I said my “that’s it without going into details too much” one of the interviewers said: “And what about indexes?”, “ah, yes indexes…” was my response. I think this is beginning of the scale of non-SQL professional knowledge about indexes – you are vaguely aware that they exist and have some vague idea about what they do.

Data in a table stored in a clustered index structure

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