Theodore Ts’o • 2/20/2009

Aligning filesystems to an SSD’s erase block size

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This article explains the importance of aligning filesystems to an SSD's erase block size (128k) and 4k sector boundaries for performance. It details how to use specific fdisk parameters (-H 224 -S 56) on Linux to achieve proper alignment, discusses implications for RAID and future hard drives, and compares Linux's default partitioning with Windows Vista's approach.

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#linux #ssd #filesystem
Aligning filesystems to an SSD’s erase block size

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