Prerequisites AWS Account with administrative access Synology NAS with DSM 6.0 or later Network connectivity between your Synology NAS and the internet Cost Warning: AWS S3 Glacier Deep Archive has very low storage costs but high retrieval costs. Data retrieval can take 12+ hours and costs vary based on retrieval speed. This solution is intended for long-term archival of data you rarely need to access. Create S3 Bucket This is where the archive data will be stored.