Linux & SSD 512e disk.

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Dear Forum,


Observed that SSD disks are  having 512bytes emulator logical  sectors and 4k physical sectors (Advanced Format with 4096 byte physical sectors). Will there  be any performance penalty if proceed with a default LVM creation and and XFS filesystem.


Please share your experience with Linux & SSD disks.



Standard G5

Premium SSD 1TB




# fdisk /dev/sdc

The device presents a logical sector size that is smaller than
the physical sector size. Aligning to a physical sector (or optimal
I/O) size boundary is recommended, or performance may be impacted.
Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Command (m for help): q

# fdisk -l /dev/sdc

Disk /dev/sdc: 1098.4 GB, 1098437885952 bytes, 2145386496 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: dos
Disk identifier: 0x00000000

Device Boot Start End Blocks Id System




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