Thanks everyone for the input. We are online in our test environment and are running user workflows to make sure everything is running as expected.
Rhian From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Rhian Resnick Sent: Thursday, March 9, 2017 8:31 AM To: Maxime Guyot <maxime.gu...@elits.com> Cc: ceph-us...@ceph.com Subject: Re: [ceph-users] cephfs and erasure coding Thanks for the confirmations of what is possible. We plan on creating a new file system, rsync and delete the old one. Rhian On Mar 9, 2017 2:27 AM, Maxime Guyot <maxime.gu...@elits.com<mailto:maxime.gu...@elits.com>> wrote: 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 <ceph-users-boun...@lists.ceph.com<mailto:ceph-users-boun...@lists.ceph.com>> on behalf of David Turner <david.tur...@storagecraft.com<mailto:david.tur...@storagecraft.com>> Date: Wednesday 8 March 2017 22:27 To: Rhian Resnick <rresn...@fau.edu<mailto:rresn...@fau.edu>>, "ceph-us...@ceph.com<mailto:ceph-us...@ceph.com>" <ceph-us...@ceph.com<mailto:ceph-us...@ceph.com>> 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:image001.jpg@01D298AE.DE1475E0]<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 [ceph-users-boun...@lists.ceph.com] on behalf of Rhian Resnick [rresn...@fau.edu] Sent: Wednesday, March 08, 2017 12:54 PM To: ceph-us...@ceph.com<mailto:ceph-us...@ceph.com> 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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