Is cache reserve helpful when my origin is R2?

[elliot7]

My understanding of cache reserve is that it is essentially a way to utilize R2 as a long term cache to further reduce origin requests, but if my origin is already R2 that sounds redundant. Are there additional features of cache reserve that mean it’s still helpful in front of an R2 origin? For example does it utilizes multiple buckets distributed across regions?

[Chaika]

@elliot7

For example does it utilizes multiple buckets distributed across regions?

I believe it’s just a single bucket, and there’s no other features that would make it helpful, but regardless it doesn’t work in front of R2 Custom Domains anyway

• Requests to R2 public buckets linked to a zone’s domain will not use Cache Reserve. Enabling Cache Reserve for the connected zone will use Cache Reserve only for requests not destined for the R2 bucket.
  Cache Reserve · Cloudflare Cache (CDN) docs