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The first question I have is to understand why some disks/OSDs showed status of ‘DOWN’ – there was no activity on the cluster. Last night all the OSDs were up. What can cause OSDs to go down? - epk From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx]
On Behalf Of EP Komarla Hi, I have created a cluster with the below configuration: - 6 Storage nodes, each with 20 disks - I have total of 120 OSDs Cluster was working fine. All of a sudden today morning I noticed some OSD’s (7 to be exact) were down on one server. I rebooted the server, 4 OSDs came back. Three OSDs were stuck on ‘down’ state. I tried to bring them online, wasn’t successful. I removed the OSDs using: Ceph osd rm osd.0 Ceph osd crush remove osd.0 I ran the same command for all the 3 osd’s that were done. Now I am left with 17 OSDs. I am trying to bring them back online. I used the commands: Ceph-deploy osd create ep-storage-2-14:sda:sdu Ceph-deploy osd create ep-storage-2-14:sda:sdu Where sda is the OSD partition and sdu is the journal partition I am getting this below error:
I am not following what this error means. Can someone help me on how to bring these OSDs back? I know I am making some mistake, but can’t figure out. Thanks in advance, - epk EP KOMARLA,
Emal:
EP.KOMARLA@xxxxxxxxxxxxxxx Address: 677 Gibraltor Ct, Building #2, Milpitas, CA 94035, USA Phone: 408-674-6090 (mobile)
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