Model: ATA Samsung SSD 850 (scsi) Sector size (logical/physical): 512B/512B Partition Table: gpt Disk Flags: Number Start End Size File system Name Flags 1 24576B 1048575B 1024000B bios_grub 2 1048576B 537919487B 536870912B fat32 boot, esp 3 537919488B 1611661311B 1073741824B zfs 4 1611661312B 500107845119B 498496183808B zfs
parted /dev/sda align-check optimal 1 > 1 not aligned parted /dev/sda align-check optimal 2 > 2 aligned parted /dev/sda align-check optimal 3 > 3 aligned parted /dev/sda align-check optimal 4 > 4 aligned
The sector size says 512B, but interally I am guessing 4096B because it is a SSD, either way it should be divisible,
24576 / 512 = 48,
24576 / 4096 = 6. Is there any reason why parted says it is not aligned.
I am aware that this current config should not have any effects on performance as it is only read (if at all) at boot, but just curious in why it is reported as it is.
For reference the partition layout is the one suggested by Debian ZFS on Root (https://openzfs.github.io/openzfs-docs/Getting%20Started/Debian/Debian%20Buster%20Root%20on%20ZFS.html)