Partition alignment

Partition alignment is the proper alignment of partitions to the boundaries available in a data storage device.

Examples include the following:

* 4 KB sector alignment with hard disk drives supporting Advanced Format (AF)
* Track partition alignment, partitions starting on track boundaries on hard disk drives
* Cylinder partition alignment, partitions starting on logical or physical cylinder boundaries on hard disk drives
* SSD partition alignment, partitions starting on NVM boundaries (with typically 4 KB to 1 MB in LBAs size) on SSDs and other flash-based memory devices
* RAID stripe alignment, partition alignment based on stripe boundaries

## See also

[edit]

* Advanced Format
* Data striping

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