[Linux] See if the hard drive is 4K aligned [technology sharing, knowledge sharing]__linux

4K Alignment Introduction: Click to view the method: First, fdisk command:

Command: sudo fdisk-lu

As the sector at start of the previous figure is divisible by 8, the 4k alignment is represented. SDA4 is that the extended partition is not aligned, no harm. The actual use is logical partitioning, SDA5,SDA6,SDA7.

If the sector at start of the previous figure is not divisible by 8, it means that there is no 4k alignment. Original address: Http://iblog.daobidao.com/linux-hard-disk-is-a-4k-aligned.DaoBiDao