[ceph-users] Re: cephfs small files expansion

2021-09-14 Thread Josh Baergen
Hey Seb, > I have a test cluster on which I created pools rbd and cephfs (octopus), when > I copy a directory containing many small files on a pool rbd the USED part of > the ceph df command seems normal on the other hand on cephfs the USED part > seems really abnormal, I tried to change the block

[ceph-users] Re: cephfs small files expansion

2021-09-14 Thread Anthony D'Atri
Yes, RBD volumes are typically much larger than bluestore_min_alloc_size. Typically your client filesystem is built *within* an RBD volume, but to Ceph it’s a single, monolithic image. > On Sep 14, 2021, at 7:27 AM, Sebastien Feminier > wrote: > > > thanks josh , my cluster is octopus on hd

[ceph-users] Re: cephfs small files expansion

2021-09-14 Thread Sebastien Feminier
thanks josh , my cluster is octopus on hdd (for testing) ,so i have to re-create OSDs and change bluestore_min_alloc_size before creating OSDs ? Is this normal that my rbd pool does not having size amplification ? > Hey Seb, > >> I have a test cluster on which I created pools rbd and cephf