In this LVM tutorial series, LVM snapshot topic is an important one and it’s one of the must know feature of Redhat Linux’s LVM. Volume snapshot is very useful to take database backup in consistent state without shutting down the database.If you take database backup without halting it,then that will be leading to an inconsistent DB […]
Linux
Redhat Linux – LVM Volumes Re-layout
In Linux, Logical volume’s layouts need to be changed according to the importance of data and performance of the volume. For example,If the current volume layout is mirrored and that volume’s data doesn’t update very frequently then daily backup may enough for the applications in case of disk failure.In these cases, you may get a […]
Linux Interview Questions – Package Management
Package management is one of the important task in Linux Administration.Red Hat Package manager aka RPM provides robust package administration on Redhat Linux.It eliminates the manually building software and made the software installation & maintenance much easier than before. RPM has lot of front-end tools to resolve the dependencies to install any packages. In this article ,we will see about RPM package manager’s interview questions and […]
LVM- Linux Interview Questions
This article will share Redhat Linux’s LVM Interview questions. LVM is one of the most important sub-system in Linux where you need to provision multiple dynamic filesystems. If you attend any Linux interview, you can always expect more questions from LVM. I have intentionally posted this article for Interviewers who always search in internet for what to ask to […]
Linux LVM – Re-sizing the Logical Volume
In LVM, logical volumes size can be increased or decreased depends on our needs. Logical volume can be shirked/reduced using “lvreduce” command but this will not reduce the filesystem. You need to reduce the filesystem before reducing the logical volume. Logical volume can be extended/increased using “lvextend” command.Once you have extended the logical volume ,then […]
Linux LVM – Volume Creation & Operations
As of now we have seen physical volume administration and volume group administration on this Linux’s LVM tutorial series.Logical volume is the top most virtual object in the LVM. Once you have constructed physical volume and volume group,the next step will creating the logical volume and mount the filesystem for storing the data.Here we will […]
Linux – LVM – Volume Group Operations
We have already seen the basics of logical volume manager structure on the previous article.Here we are going to see about Logical volume manager’s volume group operations and management. Volume group is high level container in LVM which contains one or more physical disk or LUNS. A volume group can span in to multiple disks, whether […]
How to Install LVM on Linux and Disk Operations
LVM will be installed by default on Redhat Linux installation.But sometimes if you select the minimum package installation method,LVM will not be installed.So you need to install LVM package separately .Here we will see the LVM installation method and if its already installed how to verify it .Logical volume manager has two versions and those […]
How to Take Remote GUI Session of Linux Server ?
Tiger VNC is a high-performance client/server application that allows end users to take remote GUI session (Remote Desktop) of Linux Servers.So that graphical application can be launched remotely using VNC session.It also provides extensions for advanced authentication methods and TLS encryption.Normally tiger VNC is coming along with Redhat Linux distribution DVD and also its available […]
How to Configure Software RAID on Linux ?
Software RAID is one of the greatest feature in Linux to protect the data from disk failure.We have LVM also in Linux to configure mirrored volumes but Software RAID recovery is much easier in disk failures compare to Linux LVM. I have seen some of the environments are configured with Software RAID and LVM (Volume groups are built using RAID devices).Using […]