>>Is it possible all replicas of an object to be saved in the same node? No. (until you don't wrongly modify the crushmap manually) >>Is it possible to lose any? with replicat x2, if you loose 2osd on 2differents nodes, with the same object inside, you'll lost the object >>Is there a mechanism that prevents replicas to be stored in another osd in the same node? The Crush map ! ----- Mail original ----- De: "Azad Aliyar" <azad.aliyar@xxxxxxxxxxxxxxxx> À: "ceph-users" <ceph-users@xxxxxxxxxxxxxx> Envoyé: Vendredi 6 Mars 2015 11:08:47 Objet: Multiple OSD's in a Each node with replica 2 I have a doubt . In a scenario (3nodes x 4osd each x 2replica) I tested with a node down and as long as you have space available all objects were there. Is it possible all replicas of an object to be saved in the same node? Is it possible to lose any? Is there a mechanism that prevents replicas to be stored in another osd in the same node? I would love someone to answer it and any information is highly appreciated. -- Warm Regards, Azad Aliyar Linux Server Engineer Email : azad.aliyar@xxxxxxxxxxxxxxxx | Skype : spark.azad 3rd Floor, Leela Infopark, Phase -2,Kakanad, Kochi-30, Kerala, India Phone :+91 484 6561696 , Mobile :91-8129270421. Confidentiality Notice: Information in this e-mail is proprietary to SparkSupport. and is intended for use only by the addressed, and may contain information that is privileged, confidential or exempt from disclosure. If you are not the intended recipient, you are notified that any use of this information in any manner is strictly prohibited. Please delete this mail & notify us immediately at info@xxxxxxxxxxxxxxxx _______________________________________________ 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