The initial idea is described in this thread https://sympa.inria.fr/sympa/arc/swh-devel/2021-01/msg00026.html
It is further discussed on the ceph user mailing list https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/thread/RHQ5ZCHJISXIXOJSH3TU7DLYVYHRGTAT/
- [[ https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/message/NDYMIXZFTQX4LNP7QSVVCYHGIM3CWDQQ/ | Dan writes ]]
> "We've never managed 100TB+ in a single RBD volume. [...] Otherwise, yes RBD sounds very convenient for what you need."
>