How To Align Partitions on Large HDD

(Doc ID 1523947.1)

Last updated on JUNE 17, 2018

Applies to:

Linux OS - Version Oracle Linux 5.5 with Unbreakable Enterprise Kernel [2.6.32] to Oracle Linux 6.3 [Release OL5U5 to OL6U3]
Linux x86-64
Linux x86

Goal

 This document introduces how to align partitions on large HDD(> 2TB). large HDDs have a new technology, called AFT(Advanced Format Technology)/Large Sector/4K sectore, which the sector size is 4096byte instead of traditional 512byte.There are two advantages of AFT, it can handle huge HDD(> 2TB --- is a limit of 512byte/sector), and brings better performance.

Solution

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