Hi, >“The answer as to how to move an existing cephfs pool from replication to >erasure coding (and vice versa) is to create the new pool and rsync your data >between them.” Shouldn’t it be possible to just do the “ceph osd tier add ecpool cachepool && ceph osd tier cache-mode cachepool writeback” and let Ceph redirect the requests (CephFS or other) to the cache pool?
Cheers, Maxime From: ceph-users <[email protected]> on behalf of David Turner <[email protected]> Date: Wednesday 8 March 2017 22:27 To: Rhian Resnick <[email protected]>, "[email protected]" <[email protected]> Subject: Re: [ceph-users] cephfs and erasure coding I use CephFS on erasure coding at home using a cache tier. It works fine for my use case, but we know nothing about your use case to know if it will work well for you. The answer as to how to move an existing cephfs pool from replication to erasure coding (and vice versa) is to create the new pool and rsync your data between them. ________________________________ [cid:[email protected]]<https://storagecraft.com> David Turner | Cloud Operations Engineer | StorageCraft Technology Corporation<https://storagecraft.com> 380 Data Drive Suite 300 | Draper | Utah | 84020 Office: 801.871.2760 | Mobile: 385.224.2943 ________________________________ If you are not the intended recipient of this message or received it erroneously, please notify the sender and delete it, together with any attachments, and be advised that any dissemination or copying of this message is prohibited. ________________________________ ________________________________ From: ceph-users [[email protected]] on behalf of Rhian Resnick [[email protected]] Sent: Wednesday, March 08, 2017 12:54 PM To: [email protected] Subject: [ceph-users] cephfs and erasure coding Two questions on Cephfs and erasure coding that Google couldn't answer. 1) How well does cephfs work with erasure coding? 2) How would you move an existing cephfs pool that uses replication to erasure coding? Rhian Resnick Assistant Director Middleware and HPC Office of Information Technology Florida Atlantic University 777 Glades Road, CM22, Rm 173B Boca Raton, FL 33431 Phone 561.297.2647 Fax 561.297.0222 [mage] <https://hpc.fau.edu/wp-content/uploads/2015/01/image.jpg>
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