[Users] ploop ext4 reserved_ratio

[Jonathan Wright]

What seems to be happening is if you set a reserved_ratio on an image 
and grow the image, that ratio is maintained and will stay at that ratio.

When shrinking the image however, mke2fs.conf is referenced and that's 
the ratio that gets used.

Is there a reason for this behavior to be inconsistent?  I was incorrect 
about making new ploop images using mke2fs.conf - it seems they don't - 
at least not through vzctl create.  It appears to be hard coded at 5%.

On 7/16/19 11:55 AM, Jonathan Wright wrote:
> ext4's default 5% reserved ratio is set on ploop images.  If you 
> update /etc/mke2fs.conf and adjust this ratio to say 1%, that's used 
> when the ploop image is created.
>
> This is great.
>
> When you then resize that image though, the stock 5% is put back in 
> place instead of the 1% that was on the filesystem (or whatever might 
> be set in /etc/mke2fs.conf).
>
> Is this intentional functionality for some reason, a bug, or something 
> simple no one has tried before?
>
-- 
Jonathan Wright
KnownHost, LLC
https://www.knownhost.com