Partition alignment is the proper alignment of
partitions to the boundaries available in a
data storage
Data storage is the recording (storing) of information (data) in a storage medium. Handwriting, phonographic recording, magnetic tape, and optical discs are all examples of storage media. Biological molecules such as RNA and DNA are cons ...
device.
Examples include the following:
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4 KB sector alignment with hard disk drives supporting Advanced Format (AF)
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Track partition alignment, partitions starting on track boundaries on hard disk drives
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Cylinder partition alignment, partitions starting on logical or physical cylinder boundaries on hard disk drives
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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
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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
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1 MB partition alignment
A solid-state drive (SSD) is a solid-state storage device that uses integrated circuit assemblies to store data persistently, typically using flash memory, and functioning as secondary storage in the hierarchy of computer storage. It is a ...
, partitions starting on 1 MB boundaries
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RAID stripe alignment, partition alignment based on stripe boundaries
See also
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Advanced Format
Advanced Format (AF) is any disk sector format used to store data on magnetic disks in hard disk drives (HDDs) that exceeds 512, 520, or 528 bytes per sector, such as the 4096, 4112, 4160, and 4224-byte (4 KB) sectors of an Advanced Format ...
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Data striping
In computer data storage, data striping is the technique of segmenting logically sequential data, such as a file, so that consecutive segments are stored on different physical storage devices.
Striping is useful when a processing device reques ...
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