Our enterprise generates petabytes of archival data, mostly for regulatory compliance, which needs to be retained for seven years but is accessed very rarely (perhaps once a year for an audit). We need a cost-effective and durable solution within Oracle Cloud Infrastructure (OCI). Should we use Object Storage (Standard or Infrequent Access), or is Archive Storage the most suitable service? What are the key performance trade-offs and data lifecycle management considerations for these cloud storage services to minimize our overall storage costs?
3 answers
Considering the multi-hour retrieval time for Archive Storage, is there a limit to how much data can be retrieved in a single audit request, or any associated hidden costs for massive retrievals beyond the standard data retrieval fee mentioned in the OCI pricing guide?
For rarely accessed, long-term regulatory data, OCI Archive Storage is absolutely the most cost-effective option. It offers the lowest price point per GB/month for storage. While durable and secure, it has a significant trade-off: a retrieval time that can take several hours (first byte can be delivered in around 1 to 4 hours), which is acceptable for rare audits. You should use Data Lifecycle Management (DLM) policies to automatically transition older, less frequently accessed data from the higher-cost Object Storage (Standard or Infrequent Access) into the Archive tier. This automation is key to minimizing human error and ensuring optimal storage costs. For petabytes of data with minimal access, Archive Storage provides the best balance of cost and durability.
For seven-year retention of rarely-accessed regulatory data, Archive Storage offers the lowest monthly storage costs in OCI. You should implement Data Lifecycle Management rules to automatically move files from Object Storage to the Archive tier after 30 or 60 days to maximize savings.
Precisely. Also, remember that OCI Object Storage is inherently multi-region durable and works seamlessly with the Archive tier, providing a highly reliable foundation for all your backup and data archiving needs right out of the box, which is vital for compliance.
There isn't a hard limit on the volume of data you can retrieve, but the cost model has three main components for retrieval: the actual storage cost (very low), the data retrieval cost (the primary cost to be mindful of), and the data egress cost if you move it out of OCI. The data retrieval charge is per GB retrieved. For a massive audit, it’s best to calculate the estimated retrieval cost beforehand using the OCI pricing calculator to avoid surprises and ensure the total cost remains cost-effective even with the retrieval event.