# "Backup on Zerops"


## Keywords
backup, restore, snapshot, daily backup, cron backup, encryption, retention, backup schedule

## TL;DR
Zerops auto-backs up databases and storage daily (00:00-01:00 UTC) with X25519 encryption; backups are retained for 7 days minimum after service/project deletion.

## Supported Services
MariaDB, PostgreSQL, Qdrant, Elasticsearch, NATS, Meilisearch, Shared Storage.

**Not supported**: Runtimes, Object Storage (use S3 lifecycle policies), Valkey/KeyDB (in-memory).

## Schedule Options
- No backups
- Once a day (default: 00:00-01:00 UTC)
- Once a week
- Once a month
- Custom CRON: `minute hour day month weekday`

## Tagging
- Auto tags: `daily` (every backup), `weekly` (first Monday UTC), `monthly` (1st of month UTC)
- User tags: Up to 24 chars (letters, numbers, `:-_`)
- **Protected tags**: Exempt from automatic deletion — use for critical snapshots

## Storage Limits
| Plan | Backup Storage | Egress |
|------|---------------|--------|
| Lightweight | 5 GB | 100 GB |
| Serious | 25 GB | 3 TB |
| Technical max | 1 TiB per project (shared across all services) |

## Retention Defaults
- Minimum kept: 7 daily + 4 weekly + 3 monthly
- Maximum per service: 50 backups

## Encryption
End-to-end with X25519 per-project keys. Decrypted only on download.

## Grace Period
7 days after service or project deletion before backups are permanently removed.

## Backup Formats by Service
| Service | Format |
|---------|--------|
| PostgreSQL | pg_dump |
| MariaDB | mysqldump |
| Elasticsearch | elasticdump (.gz) |
| Meilisearch | .dump |
| Qdrant | .snapshot |
| NATS | .tar.gz |
| Shared Storage | filesystem archive |

## Gotchas
1. **Object Storage has no Zerops backup**: Use S3 lifecycle policies or external backup
2. **Valkey/KeyDB not backed up**: In-memory data — use persistence or application-level backup
3. **Backup storage is shared**: All services in a project share the backup quota

## See Also
- zerops://themes/core — platform infrastructure
- zerops://themes/services — database service cards
- zerops://guides/scaling