Disaster Recovery Plan Template Australia

STANDARD OPERATING PROCEDURE: Enterprise Disaster Recovery Plan (DRP) Framework

Document ID: SOP-TR-DR-042
Effective Date: October 24, 2023
Version: 4.1.0
Review Cadence: Semi-Annual
Classification: Restricted – Template Registry Internal Operations

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1. Executive Summary & Purpose

This Standard Operating Procedure (SOP) defines the institutional requirements, governance models, and technical execution protocols for Disaster Recovery (DR) within Template Registry operations in the Australian jurisdiction. The purpose of this document is to establish a rigorous, repeatable framework that ensures operational resilience, data integrity, and compliance with the Privacy Act 1988 (Cth), Australian Prudential Regulation Authority (APRA) CPS 234 information security standards, and the Notifiable Data Breaches (NDB) scheme.

This SOP provides systems architects and engineering leads with the mandatory protocols required to restore critical IT infrastructure, data assets, and application tiers following a catastrophic system failure, cyber incident, or environmental disruption.

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2. Scope & Prerequisites

2.1 Scope

• Applicability: All cloud-native workloads, on-premises co-location facilities, data storage repositories, and hybrid infrastructure managed by Template Registry Australia.
• Exclusions: End-user endpoint recovery (laptops, mobile devices), which falls under Corporate IT Helpdesk SOP-IT-012.

2.2 Prerequisites & Tooling

• Cloud Infrastructure: Multi-region AWS (Sydney ap-southeast-2 primary, Melbourne ap-southeast-4 secondary) or Azure Australia Central architecture access with root-level Multi-Factor Authentication (MFA).
• Identity & Access Management: Enterprise Single Sign-On (SSO) with break-glass administrative credentials securely vaulted in HashiCorp Vault or AWS Secrets Manager.
• Infrastructure as Code (IaC): Terraform v1.5+ and Ansible control nodes configured for automated environment provisioning.
• Version Control: Access to private GitHub Enterprise repositories containing deployment manifests and pipeline definitions.
• Communication Stack: Out-of-band PagerDuty incident response integration, Slack enterprise emergency channels, and Twilio automated SMS broadcast gateways.

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3. Roles & Responsibilities (RACI Matrix)

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4. Step-by-Step Procedure

Phase 1: Incident Assessment & Activation

• 1.1 Detect system anomalies via automated Prometheus/Grafana alert thresholds or direct out-of-band notifications.
• 1.2 Convene the Emergency Response Team (ERT) via PagerDuty bridge within 15 minutes of tier-1 outage confirmation.
• 1.3 Verify disaster criteria against defined Business Continuity metrics (RTO < 4 hours, RPO < 1 hour).
• 1.4 Formally declare a Disaster Incident, updating the status page and notifying the Chief Architect and DPO.

Phase 2: Isolation & Failover Execution

• 2.1 Isolate compromised primary infrastructure components in the Sydney (ap-southeast-2) region to prevent lateral threat migration or data corruption propagation.
• 2.2 Execute automated Route 53 or Azure Traffic Manager DNS failover scripts to redirect inbound traffic to the Melbourne (ap-southeast-4) secondary DR region.
• 2.3 Verify edge routing integrity and ensure SSL/TLS certificate chains are valid on secondary load balancers.

Phase 3: Data Restoration & Integrity Validation

• 3.1 Initiate automated database point-in-time recovery (PITR) protocols from the most recent immutable snapshot stored in cross-region S3/Blob storage.
• 3.2 Execute checksum validation scripts against restored datasets to ensure absolute bit-level parity with pre-incident states.
• 3.3 Run data obfuscation and integrity validation checks to confirm compliance with Australian Privacy Principles (APPs).

Phase 4: Infrastructure Provisioning & Verification

• 4.1 Deploy ephemeral infrastructure tiers using Terraform automation pipelines targeted at the secondary region.
• 4.2 Run integration test suites and smoke tests against application microservices to verify API response codes and database connectivity pools.
• 4.3 Validate authentication pathways, API gateway throttling rules, and web-application firewall (WAF) rule sets.

Phase 5: Post-Incident Review & Handover

• 5.1 Resume standard operational traffic progressively via canary deployment routing (10% -> 50% -> 100%).
• 5.2 Archive all system logs, error dumps, and communication transcripts into the immutable audit bucket for forensic analysis.
• 5.3 Schedule the mandatory Post-Incident Review (PIR) within 48 hours of recovery completion to update structural RTO/RPO metrics.

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5. Quality Assurance & Pro-Tips

5.1 Best Practices

• Immutability: Ensure all disaster recovery backups are stored in write-once-read-many (WORM) storage vaults with multi-factor deletion protection enabled to mitigate ransomware vectors.
• Infrastructure Parity: Maintain identical infrastructure sizing in the secondary region to prevent cascading resource starvation during high-load failover scenarios.

5.2 Common Pitfalls

• Ignoring DNS Propagation Delays: Failing to lower TTLs (Time To Live) prior to an incident can drastically extend external failover propagation windows. Set production TTLs to 60 seconds during steady-state operations.
• Untested Backups: A backup that has not been restored in a clean-room environment is merely a theoretical concept. Execute automated quarterly recovery drills without exception.

5.3 Metric Thresholds

• Recovery Time Objective (RTO): $\le 240\text{ minutes}$ for core registry systems.
• Recovery Point Objective (RPO): $\le 60\text{ minutes}$ for transactional databases.

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6. Frequently Asked Questions (FAQ)

Q1: What regulatory bodies in Australia must be notified if data is compromised during a disaster event?
A1: Under the Privacy Act 1988, if an eligible data breach occurs that is likely to result in serious harm, notification must be provided to the Office of the Australian Information Commissioner (OAIC) and affected individuals as soon as practicable. If the organization falls under APRA jurisdiction, CPS 234 mandates notification to APRA within 72 hours of becoming aware of a material information security incident.

Q2: How do we handle data sovereignty requirements during multi-region failover?
A2: All primary and secondary storage regions, caching layers, and backup replicas must remain strictly within Australian geographic boundaries (e.g., ap-southeast-2 and ap-southeast-4) to maintain continuous compliance with Australian data residency mandates and contractual obligations.

Q3: What immediate action should be taken if automated failover scripts fail?
A3: The SRE Lead must immediately fall back to manual execution runbooks stored within the emergency secure local runner. Escalate directly to the Chief Architect if database replication lag exceeds the maximum permissible RPO threshold.