[GitHub] [cloudstack] rohityadavcloud edited a comment on issue #5500: CEPH Primary Storage capacity calculate

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rohityadavcloud edited a comment on issue #5500:
URL: https://github.com/apache/cloudstack/issues/5500#issuecomment-1038905927


   Hi @leolleeooleo I see what you mean now. But in case my the replica set is 
3, so ideally used should be 23 * 3 (=69GB?). But I see what you mean, the 
stored is the actual usage not considering the replicated objects. Let me share 
my current stats/screenshots (these maybe old, now I've moved to 3osds, 1tb ssd 
each) and ask if the total is stored capacity or raw capacity (I think total in 
cloudstack is raw capacity too, so it does not matter I think?):
   
   <img width="970" alt="Screenshot 2022-02-14 at 3 44 52 PM" 
src="https://user-images.githubusercontent.com/95203/153845203-2f451b50-6769-44e2-baff-acc2d2f02d4f.png";>
   <img width="388" alt="Screenshot 2022-02-14 at 3 45 20 PM" 
src="https://user-images.githubusercontent.com/95203/153845219-419839ef-7c9a-422f-8957-669a5fda0c9e.png";>
   
   ```
   # ceph df
   --- RAW STORAGE ---
   CLASS     SIZE    AVAIL     USED  RAW USED  %RAW USED
   ssd    2.7 TiB  1.6 TiB  1.2 TiB   1.2 TiB      42.85
   TOTAL  2.7 TiB  1.6 TiB  1.2 TiB   1.2 TiB      42.85
   
   --- POOLS ---
   POOL                   ID  PGS   STORED  OBJECTS     USED  %USED  MAX AVAIL
   device_health_metrics   1    1  2.0 MiB        1  5.9 MiB      0    486 GiB
   meowceph                2   64   30 GiB    7.95k   83 GiB   5.41    486 GiB
   ...
   ```
   
   cc @wido @GabrielBrascher @weizhouapache do you know/remember if the pool 
total/capacity in CloudStack relates to the raw capacity or the storable/stored 
capacity? Basically is this expected or we should fix the parsing to get stored 
capacity instead of used capacity from ceph.


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