What is swap space? Swap space in Linux is used when the amount of physical memory (RAM) is full. If the system needs more memory resources and the physical memory is full, inactive pages in memory are moved to the swap space. While swap space can help machines with a small amount of RAM, it […]
Interview Questions
The ultimate Veritas Cluster Server (VCS) interview questions
Basics What are the different service group types ? Service groups can be one of the 3 type : 1. Failover – Service group runs on one system at a time. 2. Parallel – Service group runs on multiple systems simultaneously. 3. Hybrid – Used in replicated data clusters (disaster recovery setups). SG behaves as […]
The ultimate ZFS interview questions
How to create a ZFS volume ? The command to create a ZFS volume of 1 GB is : # zfs create -V 1g geekpool/volume01 How to do a dry run before actually creating a ZFS pool ? We can simulate a ZFS operation using the -n option without actually writing to the disk devices. […]