Hot Tier: This tier is ideal for data that you need to access frequently. Think of it as the front row of a concert, easily accessible and quick to reach, but with a higher price tag. An online tier optimized for storing data that is accessed or modified frequently. The hot tier has the highest storage costs, but the lowest access costs.
Cool Tier: Designed for data that's accessed less often. Imagine it as the middle rows of a stadium – not always in use but still relatively easy to get to when needed. The storage cost is lower compared to the hot tier, but it has a higher cost for accessing the data. An online tier optimized for storing data that is infrequently accessed or modified. Data in the cool tier should be stored for a minimum of 30 days. The cool tier has lower storage costs and higher access costs compared to the hot tier.
Cold Tier: For data that you rarely need but when you do, you need it fast. Like a good book on a high shelf – you don't need it often, but it's there when you do, though with some additional effort to get it. This tier has a lower storage cost than the cool tier but comes with higher access costs. An online tier optimized for storing data that is rarely accessed or modified, but still requires fast retrieval. Data in the cold tier should be stored for a minimum of 90 days. The cold tier has lower storage costs and higher access costs compared to the cool tier.
Archive Tier: Think of this as your attic storage. You store items here that you hardly ever need to access, so they can be tucked away for long periods. This tier offers the lowest storage cost but the highest retrieval cost and requires a minimum retention period. An offline tier optimized for storing data that is rarely accessed, and that has flexible latency requirements, on the order of hours. Data in the archive tier should be stored for a minimum of 180 days.
In the table below, you can see more differences between the different tiers :
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