Replacing EBS and Rethinking Postgres Storage from First Principles

6 months ago

Fluid Storage is a new distributed block storage architecture designed for elasticity, zero-copy forks, and synchronous replication.
It is fully compatible with PostgreSQL and other databases, offering instant forks, automatic scaling, and no downtime.
Every database in Tiger Cloud’s free tier now runs on Fluid Storage, providing developers with these advanced capabilities.
Fluid Storage addresses the limitations of traditional 'elastic' cloud storage like EBS, which lacks true elasticity and efficient scaling.
The architecture consists of three layers: Distributed Block Store (DBS), storage proxies, and a user-space storage device driver.
Key features include fork-first design, true elasticity, usage-based billing, predictable performance, and Postgres compatibility.
Benchmarks show Fluid Storage sustains 110,000+ IOPS and 1.4 GB/s throughput while maintaining copy-on-write and elasticity guarantees.
Fluid Storage is built for agentic workloads, enabling autonomous systems to spin up, scale, and tear down environments efficiently.
Reliability is ensured through storage replication, database durability, compute recovery, and region-level isolation.
Fluid Storage is available today in Tiger Cloud’s free tier, with early-access partnerships open for agentic and infrastructure platforms.

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