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Askmebet — Backup & Storage Strategy
This document outlines a practical, secure, and scalable backup and storage approach for Askmebet. It’s written for engineering, ops, and compliance teams and covers objectives, architecture patterns, operational practices, recovery targets, security, testing, and a phased implementation roadmap.
Objectives
• Ensure data durability and availability for core systems (player accounts, transactions, game state, logs, content).
• Meet regulatory and audit requirements for retention and data privacy.
• Minimize Recovery Time Objective (RTO) and Recovery Point Objective (RPO) to acceptable business levels.
• Protect backups against compromise, accidental deletion, and ransomware.
• Keep operational costs predictable and aligned with risk.
Data classification & retention
• Transactional (bets, deposits, withdrawals): Critical. Retain raw and aggregated records for minimum regulatory period (e.g., 5–7 years) depending on jurisdiction.
• User profile & KYC documents: Sensitive. Retention per legal/regulatory rules; PII encrypted at rest; purge on request where law permits.
• Game content & configurations: Important. Versioned; retain recent history (90–365 days) plus tagged releases.
• Logs & monitoring telemetry: Operational. Short-term hot storage (30–90 days); longer-term cold archive (1–3 years) for investigations.
• Analytics data / aggregated metrics: Business. Retain per analytics needs; can be tiered to cheaper storage.
Architecture patterns
• Primary storage: distributed, highly available database clusters (e.g., managed RDBMS or distributed NoSQL) with synchronous replication where needed.
• Backups: combination of point-in-time (PITR) continuous backups for databases + scheduled full and incremental snapshots.
• Multi-region replication: active/passive replication for critical datasets to a geographically separate region to survive region-level outages.
• Immutable/air-gapped snapshots: use snapshot immutability (WORM) or object-lock features to protect against ransomware and accidental deletes.
• Tiered storage: hot (SSD), warm (HDD), cold (archive object). Lifecycle policies move data automatically.
• Backup metadata catalog: central index of backup sets, retention, and restore procedures for auditability.
Security controls
• Encryption: TLS in transit; AES-256 (or equivalent) at rest for backups. Manage keys using an HSM-backed KMS. Rotate keys on schedule and after incidents.
• Access control: strict least-privilege IAM roles; separation of duties for backup creation, restore, and deletion. Audit all actions.
• Immutable backups & retention locks: enable immutability windows and cross-account replication to a hardened storage account.
• Malware scanning: scan restored datasets in isolated sandbox before importing into production systems.
• Logging & alerting: amplify monitoring for backup failures, unexpected deletions, or configuration changes.
Recovery objectives & runbooks
• Target RTO/RPO examples (adjust by business priority):
o Payments ledger: RTO ≤ 1 hour, RPO ≤ 1 minute (PITR + hot replicas)
o User accounts (non-financial): RTO ≤ 4 hours, RPO ≤ 15 minutes
o Logs/analytics: RTO ≤ 24 hours, RPO ≤ 1 hour
• Maintain tested runbooks for restores: step-by-step restore, validation checksums, reconciliation against audit logs, and customer communication templates.
Testing & validation
• Quarterly restore drills for each critical dataset (full restore and partial point-in-time).
• Chaos tests simulating region failure and ransomware injection to validate failover and immutable backups.
• Verify retention and deletion workflows to ensure compliance with legal holds and data subject requests.
Cost & operational considerations
• Estimate storage + egress + API costs; use lifecycle policies to minimize long-term expense.
• Automate backup orchestration and reporting; integrate with incident management and on-call rotation.
• Implement cost guardrails and alerting on unexpected backup size increases.
Compliance & auditability
• Maintain an auditable trail of backup creation, retention, access, and deletion.
• Support legal holds by suspending retention deletion for specific datasets.
• Produce periodic backup reports for internal and external audits.
Implementation roadmap (90-day phased)
1. Audit & classification (Week 0–2): inventory datasets, define retention by dataset and jurisdiction.
2. Baseline backups (Week 2–4): enable PITR and scheduled snapshots for DBs; configure object storage lifecycle.
3. Security hardening (Week 4–8): enable encryption, KMS, immutable locks, IAM separation.
4. Multi-region replication (Week 6–12): configure async replication & DR plans.
5. Runbooks & testing (Week 8–14): author runbooks, perform first full restore drill.
6. Automation & monitoring (Week 12–16): implement alerts, reporting, and cost controls.
7. Quarterly cadence (ongoing): tests, audits, and policy reviews.
Final notes
A robust backup and storage program balances speed, cost, and security. For Askmebet, prioritize financial integrity and player data protection, then optimize logs and analytics for cost. Regular testing, immutable snapshots, and strict access controls are essential to avoid catastrophic data loss and regulatory exposure.