Hello, Olivier! Try to check recent ML thread titled "Changing replica size of a running pool". David Turner described the ways to utilize 2 nodes cluster with some kind of redundancy.
Best regards, Vladimir 2017-05-06 16:55 GMT+05:00 Olivier Roch <olivierrochvil...@yahoo.com>: > Hi all, > > > > > I have a 3 nodes CEPH cluster, each node with 4 OSD and 1 monitor and > replication across hosts defined in the crushmap. 2 pools (1 size=3, > min-size=2 , 1 size=2 min-size 2) > > One of the nodes failed (hardware failure) so I removed it from the crush > map and change replication from host to osd. > > After reconstruction cluster health is ok now (with a warning for the > monitor down) > > > While I managed to restore the 3rd node is there a way to cover a 2nd node > failure, leaving just 1 node in the cluster (disk space used does not > exceed 1 node capacity). > > I assume i will have to set up an external monitor, but what else ? > > > Olivier > > > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > -- С уважением, Дробышевский Владимир Компания "АйТи Город" +7 343 2222192 ИТ-консалтинг Поставка проектов "под ключ" Аутсорсинг ИТ-услуг Аутсорсинг ИТ-инфраструктуры
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