about ceph RBD

lincarry

New Member
Sep 4, 2019
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0
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My cluster:

Carry-1 carry-2 carry-3

Each node has an OSD

3 OSD generates RBD (size3 min_size1 pg_num 64)

When I simulate a fault to close two nodes, the RBD has a question mark and ceph -s does not respond. Why is this happening? If there is only one cluster left, what should I do to make sure the cluster is working properly?
1568789627529.png
 
Do you have a mon installed on each server?

It's sigested never to run CEPH with a min of 1.
 
No, nothing to do with Proxmox.

Ceph Mon's run in a quorum , with a quorum then CEPH will not operate at all.

With only 1 out of 3 mon's are online CEPH will become unavailable as your seeing.
 
No, nothing to do with Proxmox.

Ceph Mon's run in a quorum , with a quorum then CEPH will not operate at all.

With only 1 out of 3 mon's are online CEPH will become unavailable as your seeing.
I think I understand, thank you very much.
 

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