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Redhat-LINUX

RHEL 7 – How to configure the Fencing on Pacemaker ?

January 21, 2016 By Cloud_Devops 8 Comments

RHEL 7 STONITH

Fencing (STONITH) is an important mechanism in cluster to avoid the data corruption on shared … [Read more...] about RHEL 7 – How to configure the Fencing on Pacemaker ?

Filed Under: Pacemaker, Redhat-LINUX, RHEL7 Tagged With: Pacemaker, redhat cluster 7, RHEL7

RHEL 7 – Pacemaker – Configuring HA KVM guest – Part 7

December 31, 2015 By Cloud_Devops 1 Comment

HA KVM guest using Pacemaker

If you have followed the KVM article series in UnixArena , you might have read the article which … [Read more...] about RHEL 7 – Pacemaker – Configuring HA KVM guest – Part 7

Filed Under: Linux KVM, Pacemaker, Redhat Cluster, Redhat-LINUX, RHEL7 Tagged With: KVM, redhat cluster 7, RHEL7

RHEL 7 – Pacemaker – Cluster Resources/Group Management – Part 6

December 31, 2015 By Cloud_Devops 3 Comments

RHEL 7 cluster Resource group

In Pacemaker/Corosync  cluster (RHEL 7 HA),  resources management and resource group management are … [Read more...] about RHEL 7 – Pacemaker – Cluster Resources/Group Management – Part 6

Filed Under: Pacemaker, Redhat Cluster, Redhat-LINUX, RHEL7 Tagged With: redhat cluster 7, RHEL7

RHEL 7 – Pacemaker – Cluster Resource Agents Overview – Part 5

December 30, 2015 By Cloud_Devops 1 Comment

Pacemaker resource agents

Resource agents plays an important role in cluster management.  Resource agents are multi-threaded … [Read more...] about RHEL 7 – Pacemaker – Cluster Resource Agents Overview – Part 5

Filed Under: Pacemaker, Redhat Cluster, Redhat-LINUX, RHEL7 Tagged With: redhat cluster 7, RHEL 7

RHEL 7 – Configuring Pacemaker/Corosync – Redhat Cluster – Part 4

December 29, 2015 By Cloud_Devops 1 Comment

Redhat cluster - pacemaker corosync configuration

In this article, we will see that how to configure two node Redhat cluster using pacemaker & … [Read more...] about RHEL 7 – Configuring Pacemaker/Corosync – Redhat Cluster – Part 4

Filed Under: Pacemaker, Redhat Cluster, Redhat-LINUX, RHEL7 Tagged With: redhat cluster 7, RHEL7

RHEL 7 – Installing Redhat Cluster Software (Corosync/pacemaker) – Part 3

December 28, 2015 By Cloud_Devops Leave a Comment

Redhat Cluster 7 - RHEL 7 - Pacemaker installation

In this article, we will see that how to install Redhat cluster software (Pacemaker) on RHEL 7. If … [Read more...] about RHEL 7 – Installing Redhat Cluster Software (Corosync/pacemaker) – Part 3

Filed Under: Pacemaker, Redhat Cluster, Redhat-LINUX, RHEL7 Tagged With: redhat cluster 7, RHEL 7

Perform Live Migration on Linux KVM – Part 11

December 23, 2015 By Cloud_Devops Leave a Comment

KVM - Live VM Migration

In KVM , you can migrate the running virtual machines from one KVM host to another without any … [Read more...] about Perform Live Migration on Linux KVM – Part 11

Filed Under: Linux KVM, Redhat Enterprise Virtualization, Redhat-LINUX, RHEL7 Tagged With: KVM, Linux KVM, Redhat Enterprise Virtualization, Redhat Linux, RHEL7

Linux KVM – Change libvirt VM image store path – Part 10

December 23, 2015 By Cloud_Devops 6 Comments

In KVM , VM images are stored in /var/lib/libvirt/images directory by default.  There might be the … [Read more...] about Linux KVM – Change libvirt VM image store path – Part 10

Filed Under: Linux KVM, Redhat Enterprise Virtualization, Redhat-LINUX, RHEL7 Tagged With: KVM, Linux KVM, Redhat Enterprise Virtualization, Redhat Linux, RHEL7

Linux KVM – How to add /Remove vCPU to Guest on fly ? Part 9

December 21, 2015 By Cloud_Devops Leave a Comment

vCPU Hot-plug KVM

Does KVM support vCPU  hot-plug  ?  Will Linux KVM guest can recognize the newly added vCPU's ? The … [Read more...] about Linux KVM – How to add /Remove vCPU to Guest on fly ? Part 9

Filed Under: Linux KVM, Redhat-LINUX, RHEL7 Tagged With: KVM, Linux KVM, Redhat Enterprise Virtualization, Redhat Linux, RHEL7

Linux KVM – How to add /Remove Memory to Guest on Fly ? Part 8

December 20, 2015 By Cloud_Devops Leave a Comment

Memory Management on KVM Guest

If the application/DB is demanding more  Memory, you need to adjust the VM's memory limit … [Read more...] about Linux KVM – How to add /Remove Memory to Guest on Fly ? Part 8

Filed Under: Linux KVM, Redhat Enterprise Virtualization, Redhat-LINUX, RHEL7 Tagged With: KVM, Linux KVM, Redhat Enterprise Virtualization, Redhat Linux, RHEL7

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