Hi! So, i have nvme which reports the following (lsblk -t): NAME ALIGNMENT MIN-IO OPT-IO PHY-SEC LOG-SEC ROTA SCHED RQ-SIZE RA WSAME nvme0n1 0 131072 131072 32768 4096 0 none 1023 256 0B the nvme ns is formated with LBA=1 (4k) option (which is the second option after 512) but both lsblk and parted report sector size logical/physical as 4k/32k The question is : what block size should i use (is optimal) for file-system? Should i try a 32k blocksize? Thanks a lot! Adrian