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infrastructure/storage/backup-recovery/SKILL.md

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+---
+name: backup-recovery
+description: Implement backup and recovery strategies. Configure rsync, Restic, and cloud backups. Use when designing data protection solutions.
+license: MIT
+metadata:
+  author: devops-skills
+  version: "1.0"
+---
+
+# Backup and Recovery
+
+Implement comprehensive backup strategies.
+
+## rsync Backups
+
+```bash
+# Basic sync
+rsync -avz --delete /source/ /backup/
+
+# Remote backup
+rsync -avz -e ssh /data/ user@backup:/backups/
+
+# Incremental with hard links
+rsync -avz --delete --link-dest=/backup/latest /source/ /backup/$(date +%Y%m%d)/
+```
+
+## Restic Backup
+
+```bash
+# Initialize repository
+restic init --repo /backups
+
+# Backup
+restic backup /data --repo /backups
+
+# List snapshots
+restic snapshots --repo /backups
+
+# Restore
+restic restore latest --target /restore --repo /backups
+
+# Prune old backups
+restic forget --keep-daily 7 --keep-weekly 4 --keep-monthly 12 --prune
+```
+
+## Cloud Backup
+
+```bash
+# AWS S3 with restic
+restic init --repo s3:s3.amazonaws.com/bucket-name
+restic backup /data --repo s3:s3.amazonaws.com/bucket-name
+
+# GCS
+restic init --repo gs:bucket-name:/
+```
+
+## Best Practices
+
+- Follow 3-2-1 rule
+- Test recovery regularly
+- Encrypt backups
+- Document procedures
+- Monitor backup success