Hello,
Thank you for your question. Disaster Recovery rights and Software Assurance benefits are governed by Microsoft’s licensing terms, and the entitlement may differ depending on the licensing program (for example, Volume Licensing with Software Assurance versus CSP subscriptions). As such, there is no general statement that the Disaster Recovery rights available with Software Assurance automatically apply to Windows licenses or subscriptions acquired through the CSP program.
Because your questions require an official licensing interpretation for compliance purposes, including whether the same subscription can be used for both production and a passive DR environment, and whether equivalent DR rights exist under CSP, I recommend creating a Microsoft Unified or Premier Support request if your organization has one. The appropriate licensing support team can review your licensing agreement and provide an authoritative response based on the applicable Microsoft Product Terms and your CSP subscription.
The Microsoft Learn community is unable to provide legally binding licensing guidance, particularly for licensing scenarios involving Disaster Recovery rights and CSP entitlements.