• Knowledge of ceph management
• Understand of rados

ceph@avmlp-osgw-001 ~ $ sudo radosgw-admin zone placement list
[
    {
        "key": "default-placement",
        "val": {
            "index_pool": "default.rgw.buckets.index",
            "storage_classes": {
                "STANDARD": {
                    "data_pool": "default.rgw.buckets.data"
                }
            },
            "data_extra_pool": "default.rgw.buckets.non-ec",
            "index_type": 0
        }
    }
]
ceph@avmlp-osgw-001 ~ $ 
ceph@avmlp-osgw-001 ~ $ 
ceph@avmlp-osgw-001 ~ $ sudo radosgw-admin zone placement modify \
>       --rgw-zone default \
>       --placement-id default-placement \
>       --storage-class STANDARD \
>       --compression zlib
ceph@avmlp-osgw-001 ~ $ sudo radosgw-admin zone list --detail
{
    "default_info": "7f1c991d-daae-4c8d-87a2-56b86c98bf03",
    "zones": [
        "default"
    ]
}
ceph@avmlp-osgw-001 ~ $ sudo radosgw-admin zone placement list
[
    {
        "key": "default-placement",
        "val": {
            "index_pool": "default.rgw.buckets.index",
            "storage_classes": {
                "STANDARD": {
                    "data_pool": "default.rgw.buckets.data",
                    "compression_type": "zlib"
                }
            },
            "data_extra_pool": "default.rgw.buckets.non-ec",
            "index_type": 0
        }
    }
]

• RadosGW compression

• Blustore (osd) inline compression