ext4 block size

[Yankee]

Hello,

Looked around in system info (Xfce) but still cannot determine the block size for the
default ext4 installation I made.  That is supposed to determine the max file size ext4
can handle. 

What is the default block size we use ?


thanks for your response,

patrick013

[uncleV]

Wikipedis says
Ext4

Max file size  -  16 TiB (for 4k block filesystem)

 

[Yankee]

Wikipedis says
Ext4

Max file size  -  16 TiB (for 4k block filesystem)

 

So somewhere between 16gb and 16tb there's a blocksize factor.   I wonder where that chart is,
and our installation default blocksize.   Are we at 4k and 16tb or 1k and 16gb ?    Still looking.


regards,

patrick013

[muungwana]

type this command as root on the terminal and it should give you what you want to know

dumpe2fs /dev/ABCD | grep -i "block size"

where "ABCD" is the device node address like sda5, sdb6, hda4 etc

i am getting 4096(4KiB) here.

[Yankee]

Thanks a bunch,

Then we must be at 4k and 16tb default, which is relaxing as I might have 500gb partition size possibly, and who knows what backup file size, might be or more in the future.
Wonder why I ever tried xfs then.

patrick013