Hi, I'm trying to make multi part upload work. I'm using ceph 0.80-702-g9bac31b (from the ceph's github). I've tried the code provided by Mark Kirkwood here: http://lists.ceph.com/pipermail/ceph-users-ceph.com/2013-October/034940.html But unfortunately, it gives me the error: (multitest)pszablow at pat-desktop:~/$ python boto_multi.py begin upload of abc.yuv size 7464960000, 7 parts Traceback (most recent call last): File "boto_multi.py", line 36, in <module> part = bucket.initiate_multipart_upload(objname) File "/home/pszablow/venvs/multitest/local/lib/python2.7/site-packages/boto/s3/bucket.py", line 1742, in initiate_multipart_upload response.status, response.reason, body) boto.exception.S3ResponseError: S3ResponseError: 403 Forbidden <?xml version="1.0" encoding="UTF-8"?><Error><Code>AccessDenied</Code></Error> The single part upload works for me. I am able to create buckets and objects. I've tried also other similar examples, but none of them works. Any ideas what's wrong? Does the ceph's multi part upload actually work for anybody? Thanks, Patrycja Szab?owska