How to mount ext4 fs with block size of 65536? - linux

The default value is 4096 bytes (4 KiB), the minimum is 512, and the maximum is 65536 (64 KiB). XFS on Linux currently only supports pagesize or smaller blocks.

mkfs.ext4 -b 1024 -m 0 /dev/whatever. -b gives the block size and -m gives you the reserved blocks percentage. Replace /dev/whatever with the ...

I need to format a 6TB drive I have with a 16KB AUS in order to achieve maximum dedup. Is this possible? I tried this with mkfs and got the following warning.

[-b block-size] 指定block size大小，默认配置文件在/etc/mke2fs.conf，blocksize = 4096. Block size: 4096. Fragment size: 4096 [-I inode-size]

Valid block-size values are 1024, 2048 and 4096 bytes per block. If omitted, block-size is heuristically determined by the filesystem size and the expected ...

Valid block-size values are powers of two from 1024 up to 65536 (however note that the kernel is able to mount only file systems with block-size smaller or ...

Specify the size of blocks in bytes. Valid block-size values are powers of two from 1024 up to 65536 (however note that the kernel is able to mount only file ...

I am benchmarking EXT4 performance on Compact Flash media. I have created an ext4 fs with block size of 65536. However I cannot mount it on ubuntu-10.10- ...

I'd like to format a 12 TB HDD (not SSD) with EXT4, in order to store large video files (each file being at least 1 GiB in size).

On ext4, just use tune2fs to check your block size, as follows (change /dev/sda1 to your own device path):