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mke2fs /dev/sda2 -i 524288 -m 0 -L "SSD" -F -b 4096 -U 11111111-2222-3333-4444-555555555555 -O none,filetype,sparse_super,large_file

mke2fs /dev/sda2 -i 524288 -m 0 -L "SSD" -F -b 4096 -U 11111111-2222-3333-4444-555555555555 -O none,filetype,sparse_super,large_file 

Filesystem label=SSD
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
15104 inodes, 1915064 blocks
0 blocks (0%) reserved for the super user
First data block=0
Maximum filesystem blocks=4194304
59 block groups
32768 blocks per group, 32768 fragments per group
256 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632

Usually all my files has size 100kB (and about 5 files can be 400MB). I try to read this and this. But still not clear how approximately calc bytes-per-inode? Current 524288 is not enough.

Usually all my files has size 100kB (and about 5 files can be 400MB). I try to read this and this. But still not clear how approximately calc bytes-per-inode? Current 524288 is not enough, for now I can't make new files in sda2 but still have a lot of free space.