I run a small single-node ceph cluster (the plan was to scale out when I could
get more equipment) for home file storage deployed by cephadm. It was running
bare-metal, and I attempted a physical-to-virtual migration to a Proxmox VM
After doing so, all of my PGs seemed to be "unknown". Initial after a boot, the
OSDs appear to be up, but after a while, they go down. I assume some sort of
timeout in the OSD start process. The systemd processes (and podman containers)
are still running and appear to be happy. I don't see anything that jumps out
at me in their logs. I'm relatively new to Ceph, so I don't really know where
to go from here. Can anyone provide any guidance?
**ceph -s**
```
cluster:
id: 768819b0-a83f-11ee-81d6-74563c5bfc7b
health: HEALTH_WARN
Reduced data availability: 545 pgs inactive
139 pgs not deep-scrubbed in time
17 slow ops, oldest one blocked for 1668 sec, mon.fileserver has
slow ops
services:
mon: 1 daemons, quorum fileserver (age 28m)
mgr: fileserver.rgtdvr(active, since 28m), standbys: fileserver.gikddq
osd: 17 osds: 5 up (since 116m), 5 in (since 10m)
data:
pools: 3 pools, 545 pgs
objects: 1.97M objects, 7.5 TiB
usage: 7.7 TiB used, 1.4 TiB / 9.1 TiB avail
pgs: 100.000% pgs unknown
545 unknown
```
**ceph osd df**
```
ID CLASS WEIGHT REWEIGHT SIZE RAW USE DATA OMAP META AVAIL
%USE VAR PGS STATUS
0 hdd 1.81940 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 0 down
1 hdd 3.63869 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 0 down
3 hdd 1.81940 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 112 down
4 hdd 1.81940 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 117 down
5 hdd 3.63869 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 0 down
6 hdd 3.63869 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 0 down
7 hdd 1.81940 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 0 down
8 hdd 1.81940 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 106 down
20 hdd 1.81940 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 115 down
21 hdd 1.81940 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 94 down
22 hdd 1.81940 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 98 down
23 hdd 1.81940 0 0 B 0 B 0 B 0 B 0 B 0
B 0 0 109 down
24 hdd 1.81940 1.00000 1.8 TiB 1.6 TiB 1.6 TiB 4 KiB 3.0 GiB 186
GiB 90.00 1.06 117 up
25 hdd 1.81940 1.00000 1.8 TiB 1.6 TiB 1.6 TiB 10 KiB 2.8 GiB 220
GiB 88.18 1.04 114 up
26 hdd 1.81940 1.00000 1.8 TiB 1.5 TiB 1.5 TiB 9 KiB 2.8 GiB 297
GiB 84.07 0.99 109 up
27 hdd 1.81940 1.00000 1.8 TiB 1.4 TiB 1.4 TiB 7 KiB 2.5 GiB 474
GiB 74.58 0.88 98 up
28 hdd 1.81940 1.00000 1.8 TiB 1.6 TiB 1.6 TiB 10 KiB 3.0 GiB 206
GiB 88.93 1.04 115 up
TOTAL 9.1 TiB 7.7 TiB 7.7 TiB 42 KiB 14 GiB 1.4
TiB 85.15
MIN/MAX VAR: 0.88/1.06 STDDEV: 5.65
```
**ceph pg stat**
```
545 pgs: 545 unknown; 7.5 TiB data, 7.7 TiB used, 1.4 TiB / 9.1 TiB avail
```
**systemctl | grep ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b**
```
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@alertmanager.fileserver.service
loaded active running Ceph alertmanager.fileserver for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@ceph-exporter.fileserver.service
loaded active running Ceph ceph-exporter.fileserver for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@crash.fileserver.service
loaded active running Ceph crash.fileserver for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@grafana.fileserver.service
loaded active running Ceph grafana.fileserver for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@mgr.fileserver.gikddq.service
loaded active running Ceph mgr.fileserver.gikddq for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@mgr.fileserver.rgtdvr.service
loaded active running Ceph mgr.fileserver.rgtdvr for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@mon.fileserver.service
loaded active running Ceph mon.fileserver for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.0.service
loaded active running Ceph osd.0 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.1.service
loaded active running Ceph osd.1 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.20.service
loaded active running Ceph osd.20 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.21.service
loaded active running Ceph osd.21 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.22.service
loaded active running Ceph osd.22 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.23.service
loaded active running Ceph osd.23 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.24.service
loaded active running Ceph osd.24 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.25.service
loaded active running Ceph osd.25 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.26.service
loaded active running Ceph osd.26 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.27.service
loaded active running Ceph osd.27 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.28.service
loaded active running Ceph osd.28 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.3.service
loaded active running Ceph osd.3 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.4.service
loaded active running Ceph osd.4 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.5.service
loaded active running Ceph osd.5 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.6.service
loaded active running Ceph osd.6 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.7.service
loaded active running Ceph osd.7 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@osd.8.service
loaded active running Ceph osd.8 for
768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b@prometheus.fileserver.service
loaded active running Ceph prometheus.fileserver for
768819b0-a83f-11ee-81d6-74563c5bfc7b
system-ceph\x2d768819b0\x2da83f\x2d11ee\x2d81d6\x2d74563c5bfc7b.slice
loaded active active Slice
/system/ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b
ceph-768819b0-a83f-11ee-81d6-74563c5bfc7b.target
loaded active active Ceph cluster 768819b0-a83f-11ee-81d6-74563c5bfc7b
```
The logs for `mon` and `osd.3` can be found here -
https://gitlab.com/-/snippets/4793143
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