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Version: 2.9.0

Post Failover (DFS)

Introduction​

This guide will go through the different checks that should be executed once Failover is finished.

Post Failover Steps Unique to DFS Failover​

Verify Job Status​

  1. From the Eyeglass Web UI, open the DR Dashboard and select the DFS Readiness Tab.
  2. Make sure two (2) jobs are shown: one for the mirror policy (which should be active), and one for the original policy (which should be disabled now).
  3. Login to the source cluster (the one that you failed over from) and verify that all shares that are part of the failover are renamed with DFS Prefixes on the cluster.

How to Consult Which Shares were Part of the Failover​

  1. From the Eyeglass Web UI, open the Jobs window.
  2. Select the DFS Mode SyncIQ Policy Job using its checkbox.
  3. Click on Bulk Actions
  4. Click on Edit Configuration
  5. Under the chosen Cluster, expand the Configuration folder. Then, under that, expand the SMB Folder. All the shares that were part of the failover will have a blue checkmark next to them.

How to Check Your SMB Clients​

This must be done from a Windows machine in the domain which has access to the DFS mount.

  1. Open with explorer:

    \\<domain name>\<dfs root name>\

  2. Right click any DFS folder involved in the Failover, and click on Properties.

  3. Open the DFS Tab.

  4. Check the status and verify that the active path is "Okay" and active.

  5. Check the alternate path and verify that it's unreachable.

IMPORTANT

If the failover was done with the Controlled Failover option unchecked (a real DR event Failover), this means the share rename step on the Source cluster was not executed.

The Source Cluster should not be allowed to be reachable on the network until the shares are renamed using PowerScale OneFS UI or DFS referrals are edited to disable the target folder pointing to the source cluster.