Multi-Cloud Asset Replicationfor Global Delivery
Stop managing complex S3 replication rules and cross-region copy jobs. Upload to a single Rilavek endpoint and we fan-out your assets to AWS, Cloudflare R2, and Backblaze B2 concurrently at the byte level, not after the fact.
From single upload to multi-cloud in three steps
Create a Pipe
Define your source protocol (SFTP, FTP, or HTTP) and add two or more cloud storage destinations, across different providers.
Upload Once
Your application or users upload to a single Rilavek endpoint. No changes to existing clients or workflows.
Instant Fan-out
Rilavek streams the file to all destinations simultaneously. Each transfer is independent: a failure on one does not block the others.
Inline fan-out vs post-upload copy jobs
The biggest difference is timing. Traditional replication happens after the upload. Inline fan-out starts every destination write during the upload itself.
| Question | Rilavek Fan-out | S3 CRR / Copy Jobs |
|---|---|---|
| When does the second copy begin? | During the original upload | After the source object already exists |
| Cross-provider support | Yes, any S3-compatible mix | Usually provider-specific |
| Replication lag | No separate lag window | Can be minutes or longer |
| Failure isolation | Each destination handled independently | Depends on your replication tooling |
| Operational model | Single ingestion path | Upload path plus separate replication layer |
Stop serving the world from one region
Serving global assets from a single origin bucket is a latency and availability liability. AWS Cross-Region Replication helps, but it is asynchronous, meaning there is replication lag, and it only covers the AWS ecosystem. Adding Cloudflare R2 or Backblaze B2 means writing your own post-upload copy logic.
Rilavek does the replication synchronously at the ingestion layer. The moment the first byte arrives, all destination writes begin in parallel. By the time the upload completes, the file is already available in every region, with zero lag and no copy job to schedule.
Async Replication Has a Gap
AWS Cross-Region Replication is asynchronous. A file uploaded to us-east-1 may not appear in eu-west-1 for several minutes. For serving media assets globally or maintaining a true redundant copy, that gap is often a problem. Rilavek's inline fan-out starts all configured writes as part of the same upload flow instead of waiting for a later copy job.
Egress Cost Trap
Copying from S3 to another provider means paying AWS egress fees on top of the second provider's ingress. With Rilavek, the upload happens once and we stream to all destinations from our infrastructure. Depending on your previous architecture, that can reduce or avoid some inter-cloud copy costs.
Stream to multiple regions concurrently. Upload once, copies land globally at the same time.
S3-compatible origin-pull backend for Cloudflare or Fastly. Point your CDN at the nearest copy.
Copies begin during the original upload flow instead of waiting for a separate replication job.
Simultaneous delivery to AWS, R2, and B2 makes it easier to operate across providers and reduce dependence on a single vendor.
Common destination patterns
Teams usually mix destinations by purpose, not just geography.
Primary + Edge
Keep AWS S3 as the system of record and push a second copy to Cloudflare R2 for CDN-adjacent delivery.
Primary + Archive
Write to a hot production bucket and a lower-cost secondary provider for long-term retention.
Multi-Region Active
Place copies near major user clusters so application downloads and origin pulls hit a closer region.
Vendor Diversification
Reduce dependence on a single cloud by keeping independent copies across provider ecosystems.
What inline multi-cloud replication actually requires
Cross-region replication scripts collapse under these real-world conditions.
Zero-lag Fan-out
Destination writes begin during the original upload flow instead of waiting for a sequential copy step after upload.
Independent Failure Handling
A timeout or error on one destination does not cancel the others. Each leg is independently managed and retried.
Any S3-Compatible Target
AWS S3, GCS, Azure Blob, Cloudflare R2, Backblaze B2, Wasabi: mix and match without writing provider-specific code.
Cross-Provider Coverage
Go beyond AWS replication. A Cloudflare R2 copy in a different provider ecosystem is a true redundancy layer.
Reduced TTFB
Serve assets from the S3 bucket closest to your users. Regional copies reduce Time to First Byte globally.
Lower Copy Overhead
Streaming to multiple destinations during ingestion can reduce the extra copy steps and fees that come with post-upload replication workflows.
What teams usually care about after the demo
Replication is only useful if the copies are observable, independently managed, and simple to reason about during incidents.
Per-destination status
See which copy succeeded, which one retried, and which destination needs attention.
No single replication queue
Each destination leg can proceed independently instead of serializing behind one copy job.
Cloud-neutral design
Add or swap providers without rebuilding the source-side upload workflow.
Better delivery timing
By the time the upload is complete, the additional copies are already in motion or already finished.
Frequently Asked Questions about Multi-Cloud Replication
Is replication synchronous or asynchronous?
Inline and synchronous. All destination writes begin in parallel with the first chunk received. By the time the upload completes, all copies are already written, not queued for a later job.
What happens if one destination fails during upload?
Each destination transfer is managed independently. A failure on one destination triggers retries on that leg only, without affecting the other destinations. You see per-destination status in the transfer log.
Do I have to pay inter-cloud egress fees?
You don't pay cross-cloud egress between your buckets. In a typical setup, you upload to one provider, read the files back out over the public internet, and push them to a second provider. That initial read triggers steep egress charges. Because Rilavek writes to all your destinations simultaneously during ingest, you never have to pull data from one cloud just to copy it into another. That's where you save on egress: data never hops between clouds, so you only pay each provider's standard storage and upload fees.
How many destinations can I add to a single Pipe?
Multiple destinations per Pipe are supported. In practice, 2 to 3 is most common (for example, a primary S3 bucket, a CDN-optimized R2 bucket, and a cold B2 archive).
Can I replicate between completely different storage providers?
Yes. Native tools like AWS S3 Cross-Region Replication trap you within a single ecosystem. Rilavek works across any S3-compatible service. You can pair AWS S3 as your primary bucket with Cloudflare R2 and Backblaze B2 as secondary targets in the exact same Pipe.
Can I make secondary destinations optional so they don't break the main upload?
Yes. Secondary destinations can be non-blocking. If a secondary archive bucket has a temporary outage or hits rate limits, Rilavek logs the issue on that leg while letting your primary upload complete without interruption. You control whether each destination should stop the entire transfer on failure or deliver best-effort.
How is data integrity verified across multiple destinations?
Because Rilavek streams directly in memory, the exact same byte stream feeds all configured storage backends simultaneously. Each cloud provider calculates and confirms chunk ETags and write acknowledgments before an upload is marked complete, ensuring bit-for-bit parity across all your destinations.
What happens if our secondary backup bucket hits a rate limit?
If a secondary destination throttles requests or hits rate limits, Rilavek retries with exponential backoff over a bounded window. If the destination still fails to accept the write, the outcome depends on your configuration: if the secondary is marked as optional, the primary upload succeeds and the failure is logged. If the secondary is required, the entire upload fails and the sender must retry the transfer.
Upload once. Land everywhere.
Configure a Pipe with multiple destinations and start replicating globally in minutes. No copy scripts and no separate replication cron jobs.
Free plan includes 10GB of transfer. No credit card required.