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 page partition alignment, partitions starting on NVM page boundaries (with pages typically 4 to 16 KB in size) on SSDs and other flash-based memory devices
- SSD block partition alignment, partitions starting on NVM block boundaries (typically blocks of 128 to 512 pages) on SSDs and other flash-based memory devices
- 1 MB partition alignment, partitions starting on 1 MB boundaries
- RAID stripe alignment, partition alignment based on stripe boundaries
See also
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