20 May
2021
20 May
'21
3:39 p.m.
On 20 May 2021, at 15:18, Eirik Rye <rye@trojka.no> wrote:
I assume there are some sparseness or block size related shenanigans going on here instead, causing differences in reported physical usage by
du(syscallnewfstatat()) compared tols(syscalllstat()) and dovecot.The filesystem quota system in Linux, which is what we're migrating from, apparently uses the same calculation method as
du, which adds to the confusion.
Oh, a lot of messages in these folders appear to be hardlinks to the same inodes (duplicates). Dovecot's vsize-calculation doesn't care that messages are referencing the same inodes, but du and Linux' quota calculation obviously does.
That explains everything, then. Apologies again for the bother.
- Eirik