VCS cluster 6.2 LAB with working I/O fencing : The setup
In one of my older posts I have configured VCS cluster home lab. The setup works fine but without I/O fencing configured. The setup configured in this series of posts has a working I/O fencing. The...
View ArticleVCS cluster 6.2 LAB : Installing and configuring OEL
Installing the 2 nodes of the cluster The first step in the setup is to prepare the 2 nodes of the cluster. I have used Oracle enterprise linux 6.6 for the setup. You can use any OS of your choice...
View ArticleVCS cluster 6.2 LAB : Installing Open-E DSS
One of the most important components of this lab setup is the shared storage. I will be using the software Open-E DSS V7 lite version for the setup. The lite and the professional version software are...
View ArticleVCS cluster 6.2 LAB : Configuring Open-E DSS
In the last post we installed the Open-e DSS V7 Lite software. Let us now configure it in order to provision iSCSI storage for the 2 VM nodes of the cluster. Creating iSCSI volume We have allocated...
View ArticleVCS cluster 6.2 LAB : Installing VCS
If you have followed the first 4 posts of this series then you are ready to install the SFHA on the 2 nodes. We would also configure the I/O fencing using the installer. Unlike older version the I/O...
View ArticleVCS (Infoscale Availability) : How to online and offline a Service Group
What happens when you online a SG – When a service group is brought online, all the resources in that service group are brought online one by one starting from the child resource. – Depending on the...
View ArticleVCS (Infoscale Availability) : How to switch a Service Group
You can switch a service group between systems to test failover. This also comes handy also during a maintenance activity to free up a system in the cluster. In order to ensure that failover can occur...
View ArticleVCS (Infoscale Availability) : How to freeze a Service Group
Why freeze the service group When you freeze the service group in VCS, it will continue to monitor the resources in the cluster. But does not allow service group or the resources to be brought online...
View ArticleVCS (Infoscale Availability) – Difference Between Frozen and TFrozen attributes
These service group attributes are used to indicate that the service group is frozen due to an administrative command. When a service group is frozen, all agent online and offline actions are disabled....
View ArticleVCS (Infoscale Availability) : How to online and offline resources
Resource online basics Resources are brought online automatically when the service group is brought online. They can also be brought online manually after the maintenance task according to the order...
View Article
