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Version: 2.9.0

Policy Failover Configuration Procedures

Policy Failover Set Up​

Preparing your System for the Eyeglass Assisted SyncIQ Policy Failover​

The following steps described in this section are required to prepare your system for the Eyeglass Assisted SyncIQ Policy Failover:

Update PowerScale OneFS sudoer file for Eyeglass Service Account with PowerScale OneFS Cluster version​

Eyeglass SyncIQ Policy Failover requires some CLI commands that must run with root level access. Many customers also run the cluster in STIG or compliance mode for Smartlock WORM features, and the root user account is not allowed to login and run commands.

Updating the PowerScale OneFS sudoer file allows the Eyeglass service account user to run the command without having root access.

Please refer to the Post-Deployment Hardware Setup for details.

Post Failover Automation​

Many failover scenarios depend on extra steps performed on devices, software, and infrastructure external to the NAS cluster. Using the Eyeglass script engine, these tasks can now be automated with output captured and appended to Eyeglass failover logs. For example:

  • DNS updates post failover for SmartConnect zone CNAME editing
  • NFS host mount and remount automation
  • DNS server cache flushing
  • Application bring up and down logic to start applications post failover
  • Send alerts or emails
  • Run API commands on 3rd party equipment (e.g., load balancer, switch, router, or firewall)

Please refer to Post Failover Script Execution for more details.

Failover Planning and Checklist​

Failover planning includes extended preparation beyond storage layer failover steps, addressing the needs of clients, application owners, and any dependent systems such as DNS and Active Directory. A full Failover Plan is required, taking all of these aspects into account.

A Failover Planning and Checklist document is provided to help you develop your own failover plan.