Data validation scope in VLSR using array-based replication through SRA

Products

• VMware Live Recovery

Issue/Introduction

Clarification is requested regarding post-migration data validation and integrity verification in a VLSR (VMware Live Site Recovery) environment using array-based replication through a SRA (Storage Replication Adapter).

Specifically, clarification is needed on:

• Validation of complete data transfer

• Verification of data integrity

• Scope of SRM validation capabilities

Environment

• VLSR (VMware Live Site Recovery), formerly known as SRM (Site Recovery Manager)

• vSphere Replication is not part of the deployment

• Array-based replication through SRA (Storage Replication Adapter)

 

Cause

In a VLSR deployment using array-based replication,

• Data replication is performed by the storage array.

• The SRA (Storage Replication Adapter) is developed and provided by the storage vendor.

• VLSR orchestrates recovery workflows but does not transfer, inspect, or validate virtual machine data at the block level.

Resolution

In array-based replication environments under VLSR:

• Confirmation of data synchronization state, completeness, and storage-level integrity must be obtained from the storage system.

• Verification methods and audit information are defined within the storage platform and its associated documentation.

From the VLSR perspective, validation is limited to:

• Recovery plan execution status

• Task completion results in the VLSR interface

• VLSR log files indicating workflow execution

Block-level data verification must be performed using storage array tools and vendor-provided validation mechanisms.