[Lustre-discuss] Performance dropoff for a nearly full Lustre file system

[Kilian Cavalotti]

Hi all,

On Wed, Jan 14, 2015 at 7:27 PM, Dilger, Andreas
<andreas.dilger at intel.com> wrote:
> Of course, fragmentation also plays a role, which is why ldiskfs will reserve 5% of the disk by default to avoid permanent performance loss caused by fragmentation if the filesystem gets totally full.

Ashley Pittman gave a presentation at LAD'13 about the influence of
fragmentation on performance.
http://www.eofs.eu/fileadmin/lad2013/slides/03_Ashley_Pittman_Fragmentation_lad13.pdf

Cheers,
-- 
Kilian