All the system admin would like to avoid server outage by having redundancy for root filesystem using mirroring, Multiple FC links to SAN with help of multi-pathing and many more.So here the question is how do you provide redundancy in network level ? Having a multiple network card will not give any redundancy.In redhat Linux you need to configure bonding […]
Linux
How to scan new FC LUNS and SCSI disks in Linux ?
How to scan new FC LUNS and SCSI disks in Redhat Linux without rebooting the server? Most of the Linux beginners have to wonder how to do this and this article will be for them. It may look very simple as we perform this in daily operation to scan LUNS but the system has much work […]
RSYNC – sync the data between two servers using script
How to sync the data between two servers without using SAN replication ? Do you have better than RSYNC tool for this job ? I don’t think so, you we will not get better than RSYNC. It uses ‘rsync algorithm’ which provides a very fast method for syncing the directories or filesystems. An important feature of […]
How to install Redhat Linux on vmware workstation ?
Installing Redhat Linux is very simple,But most of the Linux beginners may wondering how to do that. Here i have used vmware workstation to show installation of Redhat Linux .The installation steps will be same if you install it in physical servers as well.If you are not familiar with vmware workstation,you can see how i have created Solaris virtual […]
How to create yum repository in Redhat Linux ?
The Yellowdog Updater Modified (YUM) is an rpm package management opensource tool which is available for Redhat Linux and other Linux flavors.In earlier days, its very difficult to install packages in Linux systems since it will ask for many dependencies.After yum introduction,its become very simple and yum has algorithm to select all the dependencies automatically once you configured the yum repository.After reading this article you will get fair idea about installing yum packages,configuring yum […]
How to configure DHCP client on Redhat Linux ?
What is DHCP ?Dynamic Host Configuration Protocol (DHCP) is server/client protocol where DHCP server provides an IP address automatically with necessary information like subnet and gateway to DHCP clients. How to configure DHCP client on Redhat Linux /Cent OS ? What are the files need to be edited to enable DHCP client ? Here we are going to see how to setup DHCP client […]
RedhatLinux SAN Migration using LVM
What would be the best way to do the SAN Migration in Redhat Linux LVM? Would the pvmove work? I would recommend you to go for LVM mirroring since its a safest method and zero downtime to perform this activity. First, you need to add the new SAN LUNS in the volume group and mirror […]