Pure Storage

xiRAID is a high-performance RAID solution designed specifically for modern storage environments, particularly those built on NVMe and NVMe-over-Fabrics (NVMe-oF) technologies. It replaces traditional hardware RAID controllers with a software-based approach that delivers significantly higher performance, lower total cost of ownership, and greater flexibility. It supports both locally attached drives and networked NVMe devices, presenting them as a unified block device that applications can use without modification. It is engineered to achieve near-hardware speeds through advanced techniques such as I/O parallelization and a lockless datapath, enabling throughput of up to 150 GB/s, up to 30 million IOPS, and latency below 0.5 ms while maintaining minimal CPU and memory usage. It supports a wide range of RAID levels, including 0, 1, 5, 6, 10, 50, 60, and 70, and is compatible with POSIX APIs, allowing seamless integration with existing file systems.

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