Comparison Type 1 vs Type 2 Hypervisor

Comparison Type 1 vs Type 2 Hypervisor

Before moving ahead with the types let us understand the meaning of an hypervisor.   What is Hypervisor? A Hypervisor also known as Virtual Machine Monitor (VMM) can be a piece of software, firmware or hardware that gives an impression to the guest machines(virtual machines) as if they were operating on a physical hardware. It … Read more

Comparison and Difference between vSphere 5.1 and 5.5

Comparison and Difference between vSphere 5.1 and 5.5

This is one general question which can be asked to you in any interview but rather more being a VMware Administrator you should understand the new features introduced in the later version of VMware vSphere 5.5 as compared to older version 5.1. So in order to understand the difference between vSphere 5.5 and 5.1 I … Read more

Disk Attachment Technology FC vs SAS vs iSCSI

In this article I will try to brief about the methods used for attaching hard disk to servers. Mainly it can be separated into 3 categories as shown below  Fibre Channel (FC)  Serial-Attached SCSI (SAS)  Internet SCSI (iSCSI)   Fibre Channel Disk Attachment Fibre Channel (FC) is a high-speed disk attachment technology primarily used for … Read more

Understanding UMASK value in Linux

What is umask value? In computing, umask is a command that determines the default permission to be set on any file or directory is created. It also refers to a function that sets the mask, and to the mask itself, which is formally known as the file mode creation mask.   What is default umask … Read more

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