As the threats of the digital age multiply, modern enterprises are rethinking their identity providers (IdPs) and transitioning to new models of identity security. Because identity downtime can result in revenue losses, reputational damage, and issues with authentication access, many businesses are turning to IdP migration or failover to combat outages, support modernization, and capitalize on vendor consolidation.
In this guide, we’ll help you understand the differences between failover and migration, discuss how orchestration tools simplify transitions, and give you key steps for planning, setup, and validation of a migrated IAM system.
Understanding Failover vs. Migration
Failover (Continuity Approach)
Failover is an approach to identity continuity that enables temporary authentication whenever an entity’s primary IdP (e.g., Okta) is offline, automatically redirecting users to a secondary provider (such as Microsoft Entra ID) and preserving user access during an outage. Redirection is typically managed via orchestration tools like Strata’s Maverics Platform, with an overall focus on ensuring uptime, streamlining disaster recovery, and preserving business continuity.
Migration (Transformation Approach)
In contrast to failover, migration is a structured, permanent move from one IdP to another that requires a meticulous process of attribute synchronization, SCIM provisioning, and application remapping. It is most ideal for modernization or consolidating multiple IdPs into a unified architecture.
When To Use Each
Failover and migration are best used in different scenarios. Failover is more appropriate for creating short-term resilience and uptime protection, while migration is best for businesses that require long-term transformation and operational simplification.
Step 1 – Plan and Prepare
Inventory Your Identity Landscape
To begin the migration process, the first step is to inventory your identity landscape. List all systems and applications that authenticate via your current IdP, including orchestrators, agents, and API clients (i.e., Zscaler & Keyfactor model). Identify which ones support OAuth 2.0, OpenID Connect, or token-based authentication.
Align Attributes and Mappings
Next, align your attributes and mappings. Match your existing SAML NameID and SCIM userName values between IdPs. Ensure that group, department, and role attributes are consistent across both IdPs and test your mappings with sample SAML assertions and SCIM payloads.
Synchronize User and Group Data
To synchronize your user and group data, enable SCIM provisioning between both IdPs to maintain parity. Verify that both IdPs show identical user lists and nested group memberships.
Plan Reauthentication Policies
As you finish synchronizing, plan reauthentication policies so that you can expect users to retain access after a migration or failover event. Make sure to set reasonable timeouts (for example, less than 1 hour) to ensure new SAML attributes apply correctly.
Consider a Parallel Deployment
You can deploy both IdPs in parallel to ensure that your migration is working effectively. Run both IdPs in parallel for a defined transition window and migrate users in controlled phases to minimize disruption.
Step 2 – Implement Identity Orchestration for Continuity
Deploy an Orchestrator
Next, connect both IdPs (e.g., Okta and Microsoft Entra ID) to a central orchestration platform such as Strata’s Maverics Orchestrator with Schema Abstraction Layer™. This platform will create an abstraction layer to automatically migrate your identity data.
Configure Health Checks and Failover Rules
After you have deployed your orchestrator, monitor your primary IdP’s uptime. Use this as a base to define automatic redirection and failback parameters based on what level of downtime you believe qualifies as an outage worth triggering failover for.
Map and Normalize Attributes
After configuring your failover rules, use an abstraction layer to ensure that all of your attributes, such as usernames, groups, and MFA states, are correctly aligned. Validate correct attribute mapping through test logins to make sure that user credentials match access and group privileges.
Test Failover Flow
Next, you can test your failover process by simulating a primary IdP outage. Once you disable the primary IdP, confirm that redirection and authentication continue seamlessly and the backup IdP kicks in. Validate user session persistence and audit logging, making note of any errors.
Enable Failback and Recovery
After confirming failover success, set up a failback process that will automatically restore traffic to the primary IdP when it becomes available again. When you restore your primary IdP, review logs for compliance and troubleshooting.
Step 3 – Execute a Controlled Migration
Duplicate and Configure Environments
Your next step is to duplicate and configure your environments. Stand up your new IdP in a parallel instance and connect it to the same user directory or database. Gradually transition authentication endpoints from one IdP to the other.
Update Application Integrations
To start the process of fully migrating from one IdP to another, replace your Okta or other legacy app endpoints with new Entra ID (or Authentik) metadata. Reissue SAML certificates and update SCIM connectors to transition them to the new system.
Manage Virtual Directories and APIs
Next, manage your virtual directories and SPIs by updating IIS directories or application paths via a keyfactor approach. You can prevent name conflicts during cutover by using unique virtual directory names.
Reauthorize Clients and Workflows
To complete the migration process, repoint API keys and OAuth credentials to the new IdP. Make certain to test your custom apps, orchestration tools, and service accounts.
Step 4 – Validate and Test
Next, verify that your users can log in through the new IdP. Confirm SCIM provisioning accuracy in terms of user sync and group assignments, test failover and failback between IdPs, validate audit logging and reauthentication flows, and review MFA prompts, timeouts, and policy enforcement.
Step 5 – Optimize User and Admin Experience
For End Users
Your final step is to ensure an optimized user and admin experience. Examine your user interfaces to ensure that they experience a consistent login screen, benefit from silent redirection during outages, and require minimal or one-time reauthentication during an outage.
For Administrators
Establish a centralized dashboard that your admins can use to monitor both IdPs Create role-based controls for failover, policy, and audit management. Ensure unified visibility into authentication events and identity health.
Conclusion
Migrating to a new Identity Provider doesn’t have to disrupt operations. Failover orchestration for short-term resilience can coordinate with gradual migration for long-term modernization to boost your overall security. The key takeaway is to plan attributes, test frequently, and maintain parallel environments where possible.
