1. why erasure coded pool does not work with rbd?
2. i used rados command to put a file into erasue coded pool,then rm it. why the file remains on osd's backend fs all the time?
3. what is the best use case with erasure coded pool?
4. command of 'rados ls' is to list objects, where are the object-name stored?
5.when a rbd file is put on erasure coded pool, where is the infomation(rbd name) of the rbd stored?
thanks
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