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Infrastructure

A collection of 11 issues

VMDK split files merging: The hard way

The previous versions of vSphere supported deploying virtual machines from an OVF template with split VMDK files. However, starting 6.5 VMware removed support for chunked VMDK files. As a result, vSphere 6.5 may not deploy old templates. VMware fixed this issue by releasing a tool that combines VMDK

Task of the day: Move a file using robocopy

A few days ago, I observed something is wrong in the workflow of a unit in a different department. Their workflow requires retrieving a video through FTP and then moving the files to another folder to be transcoded. The process of moving files from a folder to another is currently

Task of the day: Install CentOS

Somewhere on earth in an IT department in a company there is a happy and excited junior system administrator at work. The junior is excited and happy because a brand-new server just arrived. Unfortunately, the happiness and excitement didn’t last long after knowing that the server came without

Introduction to Linux

As a tech worker, one of the skills that is a must is ability to use Linux. I won't give you a walkthrough on how to write your first command or how to install it. However, I will talk about what do you need to know about Linux

Consumer Hardware VS Server Hardware

One of the mistakes some novice IT pros do is suggesting using high-end consumer hardware instead of Server grade hardware. They suggest using high-end consumer grade hardware because it has better performance with the price range. However, price tag is just a factor in calculating overall cost of

Server 101: SAN and NAS

Storage is one of the topics that is done differently in the corporate world than home environment. In SOHO data is usually stored in directly attached hard drives and in a device in a device over the network using a NAS. On the other side, corporate usually depend on something

Automating Operating System Installation

Operating system installation is one of the most basic and simple process done by sysadmins or help-desk people, yet it is one of the most expensive processes for any business, because it wastes IT staff time and employees time. Besides being expensive and time consuming, it is also very

Server 101: 3 2 1 Backup

In May 2017, a massive cyber-attack caused by WannaCry ransomware. Such attack has increased the awareness of the importance of backups. However, many system administrator, especially novice ones faced the consequences of improper backup strategies that are never tested. Such strategies mostly lead into a huge chunk of missing

Server 101: RAID under the scope

Fault tolerance is one of the concepts that is put into consideration when designing an infrastructure. In a nutshell fault tolerance is the ability for a device or a system to operate, even when it is faulty. One of the technologies that is based on the concept is fault tolerance

Server 101: Server Rack Components

A lot of equipment is installed in server racks besides servers. These server devices serve different purposes such as cable management and energy supply. In this post, we will discover these devices and learn more about them and why are they used. PDU In short, PDU which stands for power