COS intelligent tiered storage distinguishes the storage tiers where objects are located through a combination of factors including object access frequency, last access time, and other metadata. This allows the system to automatically move data between different storage tiers to optimize costs and performance.
For example, if an object has not been accessed for a long time, it might be moved from a standard storage tier to a lower-cost archive storage tier. Conversely, if an object is frequently accessed, it might be promoted to a higher-performance tier.
In Tencent Cloud, COS (Cloud Object Storage) utilizes intelligent tiering to categorize data into different tiers such as Standard, Infrequent Access, and Archive based on these access patterns. This ensures that data is always stored in the most cost-effective tier while still meeting access requirements.
Additionally, Tencent Cloud's COS offers a feature called "Smart Tiering" which dynamically adjusts the storage tier of objects based on their access behavior. This further optimizes storage costs by automatically moving less frequently accessed data to cheaper tiers and keeping frequently accessed data in higher-performance tiers.