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 Whenthere is no requirement for real-time analytics or immediate consumption based on remote storage directly. It has the following drawbacks:

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Data is stored in both tiers for the first day, resulting in about 16 hours of redundant storage. This can leads to cost waste.

So we can reduce the tiered this storage redundancy for cost saving. In this case, it will save about 25% cost payment for total size of disk.

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We can take an AWS S3 billing example (last 3 months) to show the cost saving detail:

 
AWS S3 has two main cost items for kakfa usage (normally, Kafka deployed machines and the remote storage / S3 bucket are placed in the same region so that we can ignore the network transfer cost).

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