how to increase existing partition ?

[Lennart Sorensen]

On Mon, Jan 19, 2004 at 07:43:08PM -0500, Paul Mora wrote:
> Reiserfs has the ability to size both up and down, and can be done while
> the filesystem is mounted.  This gives it an advantage over EXT3, where
> you have to unmount the fs before resizing it.

When did they add support for live resizing down?  They sure didn't use
to do that.

> Just out of curiosity, why wouldn't you trust your files to reiserfs
> 3.x?  I've been running it on many systems in many different
> configurations, with no difficulties.  Have you come across stability
> issues?

I have had too many files corrupted by reiserfs on power failure when it
claimed the filesystem was clean.  It's complete disinterest in how file
data is ordered and written to disk makes it one of the most hazardous
filesystems I have ever seen for storing data.  ext3's default ordered
writes mode is much better since it doesn't overwrite old data until the
new data is written.  Overwriting current data with new data is just a
terrible idea unless you can garuntee it will succeed.

If I had a file consisting of:
xxxxxxxx
yyyyyyyy
zzzzzzzz

And I asked to replace from  the first y on with all x's and the power
failed while reiserfs is in the middle of the write, you can end up
with:

xxxxxxxx
xxxxxxyy
zzzzzzzz

Which is neither the current or the new file.  On ext3 I would have
either the original or the new file after any given write command.

When reiserfs 4.x is released (which is full journal of all data) then I
will probably use it again.

Lennart Sorensen
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