We presented MayaNAS at OpenZFS Developer Summit 2025, introducing objbacker.io—a native ZFS VDEV for object storage. No FUSE, direct kernel-to-SDK integration achieving 3.7 GB/s throughput.

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MayaNAS introduces objbacker.io, a native ZFS VDEV implementation that integrates directly with object storage (S3, GCS, Azure Blob) without FUSE overhead. The system achieves 3.7 GB/s read throughput by using a kernel-to-SDK architecture via character device, mapping ZFS I/O operations directly to object storage APIs. The hybrid architecture places metadata on local NVMe while streaming large blocks from object storage, reducing cloud NAS costs by 70%+ compared to traditional EBS/EFS deployments. Benchmarks show 2.5 GB/s writes with 1MB aligned blocks across striped S3 buckets. The platform deploys consistently across AWS, Azure, and GCP.

MayaNAS at OpenZFS Developer Summit 2025: Native Object Storage Integration

objbacker.io: Native ZFS VDEV for Object Storage

MayaScale: High-Performance Block Storage