# MSFTPERF02-BP03 Consider using Amazon EBS fast snapshot restore
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 Amazon EBS Fast Snapshot Restore (FSR) offers significant advantages for Microsoft workloads by eliminating the initialization latency typically associated with first-use EBS volumes created from snapshots. This is particularly beneficial for Windows Server instances and SQL Server deployments where quick recovery time objectives (RTOs) are crucial. When enabled on selected snapshots in specific Availability Zones, FSR ensures that EBS volumes created from these snapshots deliver their full performance immediately without the need for the traditional initialization process, which normally requires reading all blocks from S3. For Microsoft workloads that require rapid failover, disaster recovery, or test environment provisioning, FSR can dramatically reduce the time needed to bring systems online. 

 **Desired outcome:** Achieve immediate full performance for EBS volumes created from snapshots, eliminating initialization latency for Microsoft workloads and enabling rapid disaster recovery, failover scenarios, and test environment provisioning with predictable performance characteristics from the moment volumes are attached. 

 **Common anti-patterns:** 
+  Accepting standard EBS volume initialization performance without evaluating FSR benefits for time-critical Microsoft workloads, missing opportunities to improve recovery times and system availability. 
+  Implementing FSR on all snapshots without cost-benefit analysis, leading to unnecessary expenses for snapshots that don't require immediate full performance. 
+  Using FSR without proper planning for Availability Zone placement, limiting the effectiveness of the feature for disaster recovery and high availability scenarios. 

 **Benefits of establishing this best practice:** 
+  Eliminated initialization latency providing immediate full performance for EBS volumes, crucial for rapid disaster recovery and failover scenarios for Microsoft workloads. 
+  Improved predictability for recovery time objectives (RTOs) by removing variable initialization times that can impact business continuity planning. 
+  Enhanced operational efficiency for test environment provisioning and development workflows where rapid volume availability is essential for productivity. 

 **Level of risk exposed if this best practice is not established:** Low 

## Implementation guidance
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 Implementing EBS fast snapshot restore (FSR) requires strategic selection of snapshots and Availability Zones based on your Microsoft workload's recovery and performance requirements. Focus on critical snapshots used for disaster recovery, production failover, or frequently accessed test environments. 

### Implementation steps
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1.  Identify critical EBS snapshots used for Microsoft workload disaster recovery, production databases, or frequently provisioned test environments. 

1.  Analyze recovery time objectives (RTOs) and determine which workloads would benefit most from immediate volume performance. 

1.  Enable FSR for selected snapshots in appropriate Availability Zones based on your deployment architecture. 

1.  Monitor FSR usage and costs to ensure the feature provides adequate value for the additional expense incurred. 

1.  Integrate FSR-enabled snapshots into disaster recovery procedures and automated failover processes. 

1.  Test volume creation and performance validation procedures to confirm FSR effectiveness for your Microsoft workloads. 

1.  Establish policies for FSR lifecycle management including enabling or disabling based on snapshot age and usage patterns. 

1.  Document FSR configuration and include in operational runbooks for disaster recovery and environment provisioning procedures. 

## Resources
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 **Related documents:** 
+  [Amazon EBS fast snapshot restore](https://docs.aws.amazon.com/ebs/latest/userguide/ebs-fast-snapshot-restore.html) 
+  [Instant performance on Amazon EBS volumes restored from snapshots using Fast Snapshot Restore](https://www.youtube.com/watch?v=Do4BHPjGDuM) 

 **Related tools:** 
+  [Amazon EBS](https://docs.aws.amazon.com/ebs/)