Is it possible to reconfigure a filesystem with a default EC pool to a default replicated pool?
Patrick Donnelly answered this question on 3/4/20 "You must create a new file system at this time. Someday we would like to change this but there is no timeline." I'm sure a lot of other people are in the same situation as us and would +1 this request. I guess the devs are super busy getting Octopus ready. ta ta Jake On 3/16/20 4:58 PM, Dietmar Rieder wrote:
On 2020-03-03 13:36, Abhishek Lekshmanan wrote:
This is the eighth update to the Ceph Nautilus release series. This release fixes issues across a range of subsystems. We recommend that all users upgrade to this release. Please note the following important changes in this release; as always the full changelog is posted at: https://ceph.io/releases/v14-2-8-nautilus-released
Notable Changes ---------------
[....]
* CephFS: multiple active MDS forward scrub is now rejected. Scrub currently only is permitted on a file system with a single rank. Reduce the ranks to one via `ceph fs set <fs_name> max_mds 1`.
* Ceph now refuses to create a file system with a default EC data pool. For further explanation, see: https://docs.ceph.com/docs/nautilus/cephfs/createfs/#creating-pools
Is it possible to reconfigure a filesystem with a default EC pool to a default replicated pool?
According to https://docs.ceph.com/docs/nautilus/cephfs/createfs/#creating-pools it should give a better performance. Unfortunately we created the fs with a default EC pool 2 years ago, and back then this was possible and there was no suggestion to use a default replicated pool and than add the EC pool. We did exactly the oder way around :-/
Best Dietmar
-- Dr Jake Grimmett Head Of Scientific Computing MRC Laboratory of Molecular Biology Francis Crick Avenue, Cambridge CB2 0QH, UK. Phone 01223 267019 Mobile 0776 9886539