[lustre-discuss] Full OST

Alastair Basden a.g.basden at durham.ac.uk
Fri Sep 3 00:49:27 PDT 2021


We have a file system where each OST is a single SSD.

One of those is reporting as 100% full (lfs df -h /snap8):
snap8-OST004d_UUID          5.8T        2.0T        3.5T  37% /snap8[OST:77]
snap8-OST004e_UUID          5.8T        5.5T        7.5G 100% /snap8[OST:78]
snap8-OST004f_UUID          5.8T        2.0T        3.4T  38% /snap8[OST:79]

However, I can't find any files on it:
lfs find --ost snap8-OST004e /snap8/
returns nothing.

I guess that it has filled up, and that there is some bug or other that is 
now preventing proper behaviour - but I could be wrong.

Does anyone have any suggestions?

Essentially, I'd like to find some of the files and delete or migrate 
some, and thus return it to useful production.


More information about the lustre-discuss mailing list