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-bounces@xxxxxxxxxxxxxx]
On Behalf Of Rhian Resnick
Sent: Thursday, March 9, 2017 8:31 AM
To: Maxime Guyot <Maxime.Guyot@xxxxxxxxx>
Cc: ceph-users@xxxxxxxx
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.
On Mar 9, 2017 2:27 AM, Maxime Guyot <Maxime.Guyot@xxxxxxxxx> 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
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.
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From: ceph-users [ceph-users-bounces@xxxxxxxxxxxxxx] on behalf
of Rhian Resnick [rresnick@xxxxxxx]
Sent: Wednesday, March 08, 2017 12:54 PM
To: ceph-users@xxxxxxxx
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
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