[gdal-dev] optimal way of storing COG within the S3 bucket connected to CEPH backend?

[Marcin Niemyjski]

Hello,

curently I'm investigating the optimal way of storing COG within the S3 bucket connected to CEPH backend. I came up with solution below:

VSIS3_CHUNK_SIZE=19 CPL_VSIL_USE_TEMP_FILE_FOR_RANDOM_WRITE=YES gdal_translate -of COG -a_nodata 0 -co OVERVIEW_COUNT=6 -co BLOCKSIZE=1024 -co BIGTIFF=YES -co OVERVIEW_RESAMPLING=average -co COMPRESS=DEFLATE -co NUM_THREADS=ALL_CPUS /tmp/T34UDC_20230206T095201_TCI_10m.jp2 /vsis3/CHUNK/test.tif

Do you have any reccomendtion/sugstion about the s3 chunk size, deflate chunk size, etc.?

Thanks,

Marcin





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