Also carefully read the word of caution section on David's link (which is absent in the jewel version of the docs), a cache tier in front of an ersure coded data pool for RBD is almost always a bad idea.
Caspar
Met vriendelijke groet,
Caspar Smit
Systemengineer
SuperNAS
Dorsvlegelstraat 13
1445 PA Purmerend
t: (+31) 299 410 414
e: casparsmit@xxxxxxxxxxx
w: www.supernas.eu
Caspar Smit
Systemengineer
SuperNAS
Dorsvlegelstraat 13
1445 PA Purmerend
t: (+31) 299 410 414
e: casparsmit@xxxxxxxxxxx
w: www.supernas.eu
2017-12-26 23:12 GMT+01:00 David Turner <drakonstein@xxxxxxxxx>:
Please use the version of the docs for your installed version of ceph. Now the Jewel in your URL and the Luminous in mine. In Luminous you no longer need a cache tier to use EC with RBDs.
http://docs.ceph.com/docs/
luminous/rados/operations/ cache-tiering/ On Tue, Dec 26, 2017, 4:21 PM Karun Josy <karunjosy1@xxxxxxxxx> wrote:______________________________Hi,We are using Erasure coded pools in a ceph cluster for RBD images.Ceph version is 12.2.2 Luminous.----------Here it says we can use a Cache tiering infront of ec pools.To use erasure code with RBD we have a replicated pool to store metadata and ecpool as data pool .Is it possible to setup cache tiering since there is already a replicated pool that is being used ?Karun Josy_________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph. com
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph. com
_______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
