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)

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,

How to configure GFS2 partition in Red Hat Cluster

I assume you are already familiar with High Availability Cluster and it's architecture. In another article I have shared a step by step guide to configure High Availability Cluster on Linux. GFS2 is based on