Subject: Re: Addiind a new filesystem support
To: None <tech-kern@netbsd.org>
From: Luke Mewburn <lukem@wasabisystems.com>
List: tech-kern
Date: 05/05/2002 22:36:46
On Fri, May 03, 2002 at 05:11:42PM -0400, Bill Sommerfeld wrote:
| > FFS is 64bit and has been for a long time.
|
| Well, sort of. it can handle files larger than 2^32 bytes, but it's
| not fully 64-bit.
|
| FFS still uses 32-bit block pointers, which causes it to max out at a
| filesystem size of 2^41 or so.
2^40 IIRC (31 bits, because it's unsigned). Try:
newfs -N -s 1023g -F somefile
(or, if you want "somefile" to be a "holey" file with all the metadata,
remove the -N)
| Commodity disks now exceed 2^37 bytes. We've got less than 4 bits of
| headroom.
Yes. We could try larger sector sizes, but I think that causes other
problems at this time.
Luke.