2001-11-02 07:02:03

by zmwillow

[permalink] [raw]
Subject: where the filesystem size limitation coms from?

Hi:
That is say: in 2.4.x, the max filesystem size of ext2 is 32T, and i
want know
what is the reiserfs(and others) max size ? and where the limitation
comes from(VFS layer)?
Maybe you can give some clue .
And the max file size now biger than 2G(is 16T), how reiserfs implement it?
Thanx a lot!
zmwillow

Best regard


2001-11-02 11:51:46

by Alan

[permalink] [raw]
Subject: Re: where the filesystem size limitation coms from?

> And the max file size now biger than 2G(is 16T), how reiserfs implement it?
> Thanx a lot!

16Tb etc are file system internal limits. There is also a 1Tb or so block
device limit too

2001-11-02 12:31:17

by Hans Reiser

[permalink] [raw]
Subject: Re: where the filesystem size limitation coms from?

zmwillow wrote:

>Hi:
>That is say: in 2.4.x, the max filesystem size of ext2 is 32T, and i
>want know
>what is the reiserfs(and others) max size ? and where the limitation
>comes from(VFS layer)?
>Maybe you can give some clue .
>And the max file size now biger than 2G(is 16T), how reiserfs implement it?
>Thanx a lot!
>zmwillow
>
>Best regard
>
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block numbers are a 32 bit int is the problem. sectors are also kept as
a 32 bit int, but that is a layer below reiserfs. block numbers become
64 bit in reiser4, but not sure when rest of linux goes to 64 bit block
numbers

Hans