Re: [Ext2-devel] [RFC 0/13] extents and 48bit ext3

Andreas Dilger
2006-06-10T04:22:20Z

On Jun 09, 2006 22:31 -0400, Jeff Garzik wrote:
> Andreas Dilger wrote:
> >the inode count per group
> >is a fixed parameter for the whole filesystem that even online resizing
> >cannot change.
>
> Correct. Fixed... at mke2fs time. Thus, with varying mke2fs runs,
> inodes-per-group can vary, where it does not with online resize.

Unless specified differently at format time, the inodes-per-group will
be the same value (namely 16384) if the filesystem is larger than 512MB.
So, yes, I agree with you if you start with a tiny filesystem and try
to resize it to a gigantic filesystem you will get a different number
of inodes, but that is true whether this is online resizing or offline.

That said, for anyone who has resized their filesystem I think they prefer
to be able to resize it than not being able to do so at all.

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.