They solve different problems. Backblaze is cheap cloud storage with predictable egress. Synology is a local appliance that handles NAS duties and tiers to cloud. Most mid-market companies need both. Here's when to reach for which.
Backblaze B2 is object storage. It is good at one thing: cheap, durable storage you can push to and pull from. Egress is predictable. The API is boring, which is a compliment.
Synology is an appliance. It does SMB shares, NFS, snapshots, replication, and can push to B2 or S3 as a tier. If you already need a file server, you are halfway to a backup target.
The pattern we usually recommend: production data to Synology for fast local restore, Synology replicates snapshots to B2 for offsite. That's 3 copies, 2 media types, 1 offsite, without building anything custom.
When to skip Synology: you're cloud-native, your data lives in SaaS and object storage already, and adding a box on-prem is a step backward. Push directly from workloads to B2 with immutable buckets.
When to skip Backblaze: you have compliance requirements that demand a specific region or provider. Pick the cloud you have to use and move on.
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