## Prerequisites

1. CLI installed and logged in (see setup skill).
2. No cluster context required -- backup operations use `--cluster-id` directly.

## Commands Reference

### Create a Backup

```bash
zilliz backup create --cluster-id <cluster-id>
# Optional: --database <database-name>, --collection <collection-name>
# Or use raw JSON: --body '{...}'
```

### List Backups

```bash
zilliz backup list
# Optional:
#   --project-id <filter-by-project-id>
#   --cluster-id <filter-by-cluster-id>
#   --creation-method <manual|auto>
#   --backup-type <CLUSTER|COLLECTION>
# Pagination: --page-size <n> --page <n>
# Fetch all pages: --all
```

### Describe a Backup

```bash
zilliz backup describe --cluster-id <cluster-id> --backup-id <backup-id>
```

### Delete a Backup

```bash
zilliz backup delete --cluster-id <cluster-id> --backup-id <backup-id-to-delete>
```

### Export a Backup

```bash
zilliz backup export \
  --cluster-id <cluster-id> \
  --backup-id <backup-id> \
  --integration-id <storage-integration-id>
# Optional: --directory <directory>
```

### Restore to a New Cluster

```bash
zilliz backup restore-cluster \
  --cluster-id <source-cluster-id> \
  --backup-id <backup-id-to-restore> \
  --project-id <target-project-id> \
  --name <new-cluster-name> \
  --cu-size <compute-units-for-new-cluster> \
  --collection-status <LOADED|NOT_LOADED>
```

### Restore Specific Collections

```bash
zilliz backup restore-collection \
  --cluster-id <source-cluster-id> \
  --backup-id <backup-id> \
  --dest-cluster-id <destination-cluster-id>
# Or use raw JSON: --body '{"collections": [{"source": "col1", "target": "col1_restored"}]}'
```

### Describe Backup Policy

```bash
zilliz backup describe-policy --cluster-id <cluster-id>
```

### Update Backup Policy

```bash
zilliz backup update-policy --cluster-id <cluster-id> --auto-backup <true|false>
# Optional:
#   --frequency <frequency>
#   --start-time <start-time>
#   --retention-days <days-to-retain-backups>
# Or use raw JSON: --body '{...}'
```

## Backup Policy Format

Frequency: `daily | weekdays | weekends | 1-7` (1=Mon, 7=Sun), e.g. `1,3,5`

Start time: `HH:MM` or `HH:MM-HH:MM` (time window), e.g. `02:00` or `03:00-05:00`

## Guidance

- The backup type is automatically derived: if `--collection` is provided, it's a COLLECTION backup; otherwise it's a CLUSTER backup.
- Backup creation, export, and restore operations are **asynchronous**. After starting, use `backup describe` to check progress.
- The `--integration-id` for export refers to a cloud storage integration configured in the Zilliz Cloud console (see import skill for setup guidance).
- Before deleting a backup, confirm with the user -- this is irreversible.
- When restoring, explain the difference between cluster restore (new cluster) and collection restore (into existing cluster).
- Suggest setting up a backup policy for production clusters.