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KVM Live Migration without Shared Storage

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KVM Guest VM Live Migration without Share Storage ----- Prerequisites ----- > Ruining Guest virtual machine on one of the KVM Host server. > Both the KVM Host servers are able accessible each other. > 1 Gbps Network configured on both the Host servers > Longing to the host servers with root user or normal user have sudo rights. > Make sure ssh service port is enabled on both the host and firewall. Steps to migrate gust vm ----- > Assume Guest VM runing on KVM Host1 ( I have give cls1 hostname to KVM Host1 and cls2 hostname to KVM Host 2 ) List the virtual machines ruining on cls1 server. Command :- # virsh list          ----- This command display the runing virtual machines on the host Name :- virt1      ----- This is ruining virtual machine ID :-  1               ----- This is first virtual machine on the host. > Check the virtual machine size. Note :- In this scenario I have used default storage path /var/lib/libvirt/images Command :-
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Create CentOS 6 Local package and Group package Repository

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Create CentOS 6 Local package and Group package Repository. Prerequisites: > CentOS 6 .iso file or DVD. > Installed CentOS 6.5 / 6.6 x86_64 server with minimum 40 GB free disk space on / partition. > Make sure Internet is enabled on Linux server to download and install few packages. Steps to create Local package repository:  > Copy CentOS 6.5 .iso file in Linux Centos 6 x86_64 server on / partition. > Mount CentOS 6.5 .iso file ( CentOS-6.5-x86_64-bin-DVD1.iso ) to /mnt directory Command: # mount -t iso9660 -o loop /CentOS-6.5-x86_64-bin-DVD1.iso /mnt  > Install HTTP service on Linux server. Command: # yum install httpd > Start HTTP service . Command: # service httpd restart > Create Directory centos65 in /var/www/html/  Command: # mkdir /var/www/html/centos65 >  Go to /mnt/Packages directory Command: # cd /mnt/Packages > Copy all the files from Packages directory to /var/www/html/centos65/ directory. Comman
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Create Linux ( LUCI ) Cluster

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Create Linux Cluster ----- Prerequisites ----- > Install CentOS 6 / RHEL 6 nodes ( Machines ) with same hardware configuration. > Minimum 2 nodes are required > Configure Linux installable YUM Repository on both the nodes. URL :- http://sappyit.blogspot.in/2014/12/create-local-yum-repository-in-rhel7.html  > Configured static IPs to both the nodes. > Both the nodes are in same network and able to ping each other. Steps to install Cluster service ----- > Disable Selinux settings on both the nodes. Command :- # cd /etc/selinux                       #vi config                     ----- Edit Selinux config file with vi editor.                      SELINUX= disabled      ----- Disabled selinux settings in the file.                     :wq                                 ----- Save and exit the file.       Restart both the nodes if required. > Disable Linux firewall / Iptables in both the nodes. Command :- # service iptables stop            
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