s3 requires twice the space it should use

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Hi,

maybe it is just a problem in my understanding, but it looks like our s3
requires twice the space it should use.

I ran "radosgw-admin bucket stats", and added all "size_kb_actual" values
up and divided to TB (/1024/1024/1024).
The resulting space is 135,1636733 TB. When I tripple it because of
replication I end up with around 405TB which is nearly half the space of
what ceph df tells me.

Hope someone can help me.

ceph df shows
RAW STORAGE:
    CLASS     SIZE         AVAIL       USED        RAW USED     %RAW USED
    hdd       1009 TiB     189 TiB     820 TiB      820 TiB         81.26
    TOTAL     1009 TiB     189 TiB     820 TiB      820 TiB         81.26

POOLS:
    POOL                                ID     PGS      STORED      OBJECTS
    USED        %USED     MAX AVAIL
    rbd                                  0       64         0 B           0
        0 B         0        18 TiB
    .rgw.root                            1       64      99 KiB         119
     99 KiB         0        18 TiB
    eu-central-1.rgw.control             2       64         0 B           8
        0 B         0        18 TiB
    eu-central-1.rgw.data.root           3       64     1.0 MiB       3.15k
    1.0 MiB         0        18 TiB
    eu-central-1.rgw.gc                  4       64      71 MiB          32
     71 MiB         0        18 TiB
    eu-central-1.rgw.log                 5       64     267 MiB         564
    267 MiB         0        18 TiB
    eu-central-1.rgw.users.uid           6       64     2.8 MiB       6.91k
    2.8 MiB         0        18 TiB
    eu-central-1.rgw.users.keys          7       64     263 KiB       6.73k
    263 KiB         0        18 TiB
    eu-central-1.rgw.meta                8       64     384 KiB          1k
    384 KiB         0        18 TiB
    eu-central-1.rgw.users.email         9       64        40 B           1
       40 B         0        18 TiB
    eu-central-1.rgw.buckets.index      10       64      10 GiB      67.61k
     10 GiB      0.02        18 TiB
    eu-central-1.rgw.buckets.data       11     2048     264 TiB     138.31M
    264 TiB     83.37        18 TiB
    eu-central-1.rgw.buckets.non-ec     12       64     297 MiB      11.32k
    297 MiB         0        18 TiB
    eu-central-1.rgw.usage              13       64     536 MiB          32
    536 MiB         0        18 TiB
    eu-msg-1.rgw.control                56       64         0 B           8
        0 B         0        18 TiB
    eu-msg-1.rgw.data.root              57       64      72 KiB         227
     72 KiB         0        18 TiB
    eu-msg-1.rgw.gc                     58       64     300 KiB          32
    300 KiB         0        18 TiB
    eu-msg-1.rgw.log                    59       64     835 KiB         242
    835 KiB         0        18 TiB
    eu-msg-1.rgw.users.uid              60       64      56 KiB         104
     56 KiB         0        18 TiB
    eu-msg-1.rgw.usage                  61       64      37 MiB          25
     37 MiB         0        18 TiB
    eu-msg-1.rgw.users.keys             62       64     3.8 KiB          97
    3.8 KiB         0        18 TiB
    eu-msg-1.rgw.meta                   63       64     607 KiB       1.60k
    607 KiB         0        18 TiB
    eu-msg-1.rgw.buckets.index          64       64      71 MiB         119
     71 MiB         0        18 TiB
    eu-msg-1.rgw.users.email            65       64         0 B           0
        0 B         0        18 TiB
    eu-msg-1.rgw.buckets.data           66       64     2.9 TiB       1.16M
    2.9 TiB      5.30        18 TiB
    eu-msg-1.rgw.buckets.non-ec         67       64     2.2 MiB         354
    2.2 MiB         0        18 TiB
    default.rgw.control                 69       32         0 B           8
        0 B         0        18 TiB
    default.rgw.data.root               70       32         0 B           0
        0 B         0        18 TiB
    default.rgw.gc                      71       32         0 B           0
        0 B         0        18 TiB
    default.rgw.log                     72       32         0 B           0
        0 B         0        18 TiB
    default.rgw.users.uid               73       32         0 B           0
        0 B         0        18 TiB
    fra-1.rgw.control                   74       32         0 B           8
        0 B         0        18 TiB
    fra-1.rgw.meta                      75       32         0 B           0
        0 B         0        18 TiB
    fra-1.rgw.log                       76       32        50 B          28
       50 B         0        18 TiB


-- 
Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im
groüen Saal.
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