Table of Contents

EXT4 inodes

default:        inode_ratio = 16384
big:            inode_ratio = 32768
huge:           inode_ratio = 65536
news:           inode_ratio = 4096

Disk

Bus 002 Device 002: ID 0bc2:231a Seagate RSS LLC Expansion Portable 

sd 0:0:0:0: [sda] 4096-byte physical blocks
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 53 00 00 08
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 0:0:0:0: [sda] Optimal transfer size 33553920 bytes not a multiple of physical block size (4096 bytes)
sd 0:0:0:0: [sda] Attached SCSI disk

default

$ mkfs.ext4 -T default /dev/sda1

$ mount /dev/sda1 /mnt

$ df -h /mnt
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       3.6T   89M  3.4T   1% /mnt

$ df -hi /mnt
Filesystem     Inodes IUsed IFree IUse% Mounted on
/dev/sda1        233M    11  233M    1% /mnt

big

$ df -hi /mnt
Filesystem     Inodes IUsed IFree IUse% Mounted on
/dev/sda1        117M    11  117M    1% /mnt

huge

$ df -hi /mnt
Filesystem     Inodes IUsed IFree IUse% Mounted on
/dev/sda1         59M    11   59M    1% /mnt

news

$ df -hi /mnt
Filesystem     Inodes IUsed IFree IUse% Mounted on
/dev/sda1        932M    11  932M    1% /mnt