Re: resizing of raid5?

[Neil Brown]

On Wednesday August 1, [e-mail] wrote:
> Hello.
> 
> Just figured if anyone could give some information about resizing of software
> raid5 systems (2.4.x kernels)? I've been looking all over for information about
> if this is possible or not currently, and if not, how this system of raid
> cluster blocks work in conjunction with ext2. The code is a bit tricky and not
> too many comments to help one try and get a hold of how it works.
> Any pointers for this would be nice.

The only way to resize a raid5 array is to back up, rebuild, and
re-load.  Any attempt to re-organise the data, or the linkage, to
avoid this would be more trouble that it is worth.

NeilBrown