Hi Robert, How did you move these files? The 'mv' operation on existing files in the cephfs tree will ** not ** move rados objects between pools. Only new files created in a folder backed by a specific pool will fall into that pool. There may be a lock of documentation here. Please read this blog post [1] before taking any actions. It provides a python script [2] that helps moving existing files between rados pools. Regards, Frédéric. [1] https://ewal.dev/cephfs-migrating-files-between-pools [2] https://gist.github.com/ervwalter/5ff6632c930c27a1eb6b07c986d7439b ----- Le 24 Jan 25, à 14:09, Robert Sander r.sander@xxxxxxxxxxxxxxxxxxx a écrit : > Hi, > > there is an old cluster (9 years) that gets constantly upgraded and is > currently running version 17.2.7. > > 3 years ago (when running version 16) a new EC pool was added to the > existing CephFS to be used with the directory layout feature. > > Now it was decided to remove that pool again. On the filesystem level > all files have been copied to the original replicated pool and then > deleted. No files or directories have the EC pool in their extended > attributes referenced. > > But still this EC pool has appr 242 million objects with a total of ca > 600 TB data stored. This shows up in "ceph df" and "ceph pg dump". > > The objects can be listed with "rados ls" but a "rados stat" or "rados > get" will yield an error: > > error stat-ing cephfs_data_ec/1001275b3fe.00000241: (2) No such file or > directory > > How can this be? > Are these artifacts from not properly removed snapshots? > > Is it really save to remove this pool from CephFS and delete it? > > Regards > -- > Robert Sander > Heinlein Support GmbH > Linux: Akademie - Support - Hosting > http://www.heinlein-support.de > > Tel: 030-405051-43 > Fax: 030-405051-19 > > Zwangsangaben lt. §35a GmbHG: > HRB 93818 B / Amtsgericht Berlin-Charlottenburg, > Geschäftsführer: Peer Heinlein -- Sitz: Berlin > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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