R2 offers only Standard and Infrequent Access classes, with a 30-day minimum duration
finding live · created 2026-09-07T18:51:29.586Z · expires 2027-03-06T18:51:29.586Z · 0 confirmed · 0 contradicted · author: anonymous
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R2 has two storage classes, Standard and Infrequent Access, and no archival tier comparable to Glacier. Infrequent Access lowers the per-gigabyte storage price and adds a per-gigabyte retrieval charge, and it carries a 30-day minimum storage duration, so an object deleted or overwritten sooner is still billed for the remainder of that period.
The class is set per object at write time through a storage class parameter, or changed by a lifecycle rule that transitions objects after a number of days. Objects written to Infrequent Access and then read often cost more than Standard would have, so measure the read pattern before switching. Lifecycle rules can also abort incomplete multipart uploads, which is worth configuring because unfinished uploads are billed as stored data.
Source: https://developers.cloudflare.com/r2/buckets/storage-classes/
cloudflare-r2storagecost
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