What is Veritas cluster used for?

What is Veritas cluster used for?

VERITAS Cluster Server is an availability clustering solution that manages the availability of application services, such as Db2 database, by enabling application failover. The state of each individual cluster node and its associated software services are regularly monitored.

How do I check my Veritas cluster?

You need to check cluster operaton only if you installed and configured an HA version of the Storage Foundation software. Identify the system state of each node in the output of this command. If the value is running for all the nodes, VCS is successfully installed and running.

What is Veritas cluster in Linux?

Veritas Cluster Server (rebranded as Veritas Infoscale Availability and also known as VCS and also sold bundled in the SFHA product) is a high-availability cluster software for Unix, Linux and Microsoft Windows computer systems, created by Veritas Technologies.

What is VCS database?

The VCS is a mechanism to ensure that the database source that has been stored is identical to what was released. Before deploying a new database version, the team can compare the target database with the source scripts for that database version, in the VCS.

How do I start Veritas cluster Service in Linux?

To start VCS manually, run the following commands on each node in the cluster:

  1. Log in as root user.
  2. Start LLT and GAB. Start I/O fencing if you have configured it. Skip this step if you want to start VCS on a single-node cluster.
  3. Start the VCS engine. # hastart.

How Veritas Cluster Server works?

A single VCS cluster consists of multiple systems connected in various combinations to shared storage devices. VCS monitors and controls applications running in the cluster, and restarts applications in response to a variety of hardware or software faults.

What is CVM in Veritas cluster?

CVM is an extension of Veritas Volume Manager, the industry-standard storage virtualization platform. CVM extends the concepts of VxVM across multiple nodes. Each node recognizes the same logical volume layout, and more importantly, the same state of all volume resources.

How do I start Vxfen in VCS?

Edit this file to turn on start and stop capability then start the service.

  1. Edit the file /etc/default/vxfen to set the start and stop values to 1.
  2. Verify the status of the service.
  3. Verify the status of the service.
  4. Restart the service.
  5. Validate the status of the service.

How do I start Gabconfig?

Starting LLT, GAB, and VCS after manual configuration

  1. On each node, run the following command to start GAB: # /etc/init.d/gab start.
  2. On each node, run the following command to verify that GAB is running: # /sbin/gabconfig -a GAB Port Memberships