ext2online with 1k blocks not working

Theodore Tso tytso at mit.edu
Thu Aug 21 13:47:33 UTC 2008

On Thu, Aug 21, 2008 at 01:07:52PM +0200, Jure Pečar wrote:
> As a Virtuozzo users we have majority of our diskspace formatted with -i 1024 -b 1024.
> Lately I discovered that on CentOS 4.6 ext2online barfs when I try to grow such filesystem. Running it with -v -d, it prints lots of lines like:
> ext2online v1.1.18 - 2001/03/18 for EXT2FS 0.5b
> ext2online: 873646830 is a bad size for an ext2 fs! rounding down to 873644033
> ...
> group NNN inode table has offset 2, not 2475
> ...
> checking for group block NNNN in Bond
> found 2218 not 2474 at 3513[168]
> ext2online: unable to resize /dev/cciss/c0d0p3

Can you replicate the problem using resize2fs from e2fsprogs version
1.41.0?  Resize2fs has supported online resize for quite sometime, and
I'm not sure the ext2online tool is being actively maintained at this

Out of curiosity, why are you using a 1k blocksize?  Does Virtuozzo
require it?  Especially for a filesystem as big what you are
apparently using, there will be some significant performance downsides
with using a 1k blocksize.  And the -i 1024; are you storing huge
numbers of small files? 

						- Ted

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