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Version: 4.0.0

Vast - Tenant Failover

What is Tenant Failover​

A Tenant is a logical grouping of resources within VAST clusters, designed to facilitate the division of a cluster's resources and enhance security. For more detailed information, you can refer to VAST’s documentation on Tenants.

In the context of failover, a Tenant serves as a means to logically group various failover-capable objects. This organization not only streamlines the failover process but also enables automatic redirection of clients through the VIP Pools nested within the Tenant.

How do you determine what is failed over within a Tenant?​

There are two primary objects associated to Tenants used within Tenant failover:

  • Protected Paths: these are the data that will be failed over
  • VIP Pools: these are the IP addresses that will be used for client redirection
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VIP Pools can either be associated to a single Tenant or ALL Tenants.

If a VIP Pool is associated to all Tenants it will be ignored as a part of failover operations and will need to be failed over manually outside of the Superna appliance

How to Execute Tenant Failover​

Pre-Requisites​

  1. Two VAST clusters set-up as Managed Devices with the appliance.
  2. Tenants configured and associated to in-scope VIP Pools and Protected Paths

Procedure​

  1. From the appliance desktop, select DR Assistant

  2. On the Failover Wizard tab, select:

    a. Your source cluster for failover.

    b. Within Failover Type select Tenant.

    c. Choose applicable Failover Options.

    d. Click Next in the lower-right corner.

  3. Read and agree to the Superna Support page by clicking the checkbox and then on Next.

  4. On the next screen select which Tenants you would like to Failover via the available checkboxes and then clicking the Next button. Be sure to select only those Tenants in an OK or WARNING state after reviewing any applicable warnings by clicking on the DR Failover Status.

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  5. Assuming all is correct you should see a Success screen. You may see a message that states certain Protected Paths will not be failed over, this is because those Protected Paths have already been failed over previously.

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  6. You will then see an overview screen that summarizes the Tenants being failed over, and your selected Failover Options.

  7. To proceed with Failover, click the checkbox in the textbox and click Run Failover.

  8. Continue as documented in the User Guide