Re: RAID 5: weird size results after Grow

[Corey Hickey <bugfood-ml@fatooh.org>]

Marko Berg wrote:
> Bill Davidsen wrote:
>> Marko Berg wrote:
>>> Any suggestions on how to fix this, or what to investigate next, 
>>> would be appreciated!
>>>
>> I'm not sure what you're trying to "fix" here, everything you posted 
>> looks sane.
> 
> I'm trying to find the missing 300 GB that, as df reports, are not 
> available. I ought to have a 900 GB array, consisting of four 300 GB 
> devices, while only 600 GB are available. Adding the fourth device 
> didn't increase the capacity of the array (visible, at least). E.g. 
> fdisk reports the array size to be 900 G, but df still claims 600 
> capacity. Any clues why?

df reports the size of the filesystem, which is still about 600GB--the 
filesystem doesn't resize automatically when the size of the underlying 
device changes.

You'll need to use resize2fs, resize_reiserfs, or whatever other tool is 
appropriate for your type of filesystem.

-Corey