Share via

Evidian SafeKit Mirror Cluster

  • Code Sample
Browse code

Azure Public Test Date Azure Public Test Result

Azure US Gov Last Test Date Azure US Gov Last Test Result

Best Practice Check Cred Scan Check

Deploy To Azure Deploy To Azure US Gov Visualize

Description

How the Evidian SafeKit mirror cluster implements real-time replication and failover in Azure?

On the previous figure,

  • the critical application is running on the PRIM server
  • users are connected to a primary/secondary virtual IP address which is configured in the Azure load balancer
  • SafeKit brings a generic health probe for the load balancer. On the PRIM server, the health probe returns OK to the load balancer and NOK on the SECOND server.
  • in each server, SafeKit monitors the critical application with process checkers and custom checkers
  • SafeKit restarts automatically the critical application when there is a software failure or a hardware failure thanks to restart scripts
  • SafeKit makes synchronous real-time replication of files containing critical data
  • a connector for the SafeKit web console is installed in each server. Thus, the high availability cluster can be managed in a very simple way to avoid human errors

Deployed resources

In term of VMs, this template deploys:

  • 2 VMs (Windows or Linux) spanning 2 availability zones
  • each VM has a public IP address
  • the SafeKit free trial is installed in both VMs
  • a SafeKit mirror module is configured in both VMs

In term of load balancer, this template deploys:

  • a public load balancer (standard SKU)
  • a public IP (Standard SKU) is associated with the public load balancer and plays the role of the virtual IP
  • both VMs are in the backend pool of the load balancer
  • a health probe checks the mirror module state on both VMs
  • a load balancing rule for external port 9453 / internal port 9453 is set to test the primary/secondary virtual IP

How to use

Click the "Deploy to Azure" button at the beginning of this document to deploy the high availability cluster. Please create a new resource group.

After deployment, go to the resource groups's deployment ('Microsoft.Template') output panel and:

  • visit the credential url to install the client and CA certificates in your web browser
  • after certificates installation, start the web console of the cluster
  • test the primary/secondary virtual IP address with the test URL in the output

More information on Evidian SafeKit in Azure

Tags: high availability, cluster, replication, real-time replication, synchronous replication, failover, business continuity, disaster recovery, evidian, safekit, mirror, Microsoft.Resources/deployments, Microsoft.Compute/virtualMachines/extensions, Microsoft.Network/virtualNetworks, Microsoft.Network/loadBalancers, Microsoft.Storage/storageAccounts, Microsoft.Network/networkSecurityGroups, Microsoft.Network/publicIPAddresses, Microsoft.Network/networkInterfaces, Microsoft.Compute/virtualMachines, SystemAssigned, Microsoft.Authorization/roleAssignments