Problems related to CephFS

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Hi guys,

I have three pools: ID0-pool1,ID1-pool2 and ID2-pool3.On cephfs, I would like to mount each pool to a directory ie. ID0-pool1 to the /srv/pools/pool1, ID1-pool2 to the /srv/pools/pool2, ID2-pool3 to the /srv/pools/pool3
with this command: cephfs /srv/pools/pool(pool_ID)/ set_layout -p (pool_ID)

1-It does not allow me to set pool id to 0. However, it doesn't give me any error.
2-It would set all of the directories to the last pool_ID that was used in the command.(all of the directories will set to ID1-pool2 (which means 2) in this case)
3- "ceph mds add_data_pool Pool_ID" does not check the pool number to make sure whether the pool exists or not! It simply adds it to the mds map and I can set it to the pool number that is not even available! For example:
I do not have pool with ID_number 10, but I can do the following without any error:
ceph mds add_data_pool 10
cephfs /srv/pools/pool1/ set_layout -p 10
and
cephfs /srv/pools/pool1/ show_layout
will show the following result:
layout.data_pool:     10
layout.object_size:   4194304
layout.stripe_unit:   4194304
layout.stripe_count:  1

Kindly please help me with the above issues.
Thanks
 
Best Regards
Sherry


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