[NILFS users] File size nad disk size

[Seiji Kihara]

Hello, 

Thank you for your interest in the NILFS.

At Mon, 20 Feb 2006 17:55:34 +0900 (JST),
Kuniyasu Suzaki wrote:
> Please tell me how to change the limit of file&disk size of NILFS. I
> want to make a lage file more than 10TB.
> 
> I tried to change the block size but "mkfs.nilfs" does not accept 8192
> block size.
>   # mkfs.nilsfs -b 8192 /dev/***

NILFS uses the VFS and page cache mechanism of Linux, and it
cannot support larger blocks than the page size that the
host CPU can support (4KB for i386).

The current NILFS (1.0.6) may be able to support 8TB files
(16TB in near future) and 16TB disks, but we cannot test
them because we do not have such big disks for testing.

For over-16TB files and disks, support for the 64bit
archirectures may be required, and it is contained in our
TODO list.  We want to try to test x86_64 if we can take 
time to do...

Sincerely,

Seiji Kihara, NILFS Team, NTT Labs.
nilfs at osrg.net