OSD mounting to tmpfs : Is that expected?

after upgrading ceph to ceph-nautilus in pve6 , osd's created mount to tmpfs .
yes this is expected as with ceph-volume the metadata is not in a partition anymore but in the lvm metadata (see lvs -o +lv_tags) from which
ceph builds a temporary filesystem
can you check my other thread?

during the process of moving osd's away from a failing motherboard - i had to recreate the osds.

1- the pool has a mix of new and old type osd's.

2- pve shows that the pool lost approx 2T worth of storage capacity. see the attached pic.

I am concerned that the pool is unstable.

Please look at the pic. It shows we have lost 2T as a result of moving osd's from one node to others.


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