doc/bugs/S3_upload_not_using_multipart.mdwn

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+I am trying to 'git annex copy large_file.tgz --to cloud' where cloud is an Amazon S3 remote.  My file is 7.4G as reported by 'ls'.  The output of the operation is...
+
+    copy large-file.tgz (gpg) (checking cloud...) (to cloud...) Reading passphrase from file descriptor 12    
+
+
+     Your proposed upload exceeds the maximum allowed size
+     failed
+     git-annex: copy: 1 failed
+
+Looks like git-annex may not be using the Multipart Upload API: http://docs.aws.amazon.com/AmazonS3/latest/dev/uploadobjusingmpu.html
+
+Here is some output from my local client that may be helpful.
+
+    annex [master●] % git annex status
+	supported backends: SHA256E SHA1E SHA512E SHA224E SHA384E SHA256 SHA1 SHA512 SHA224 SHA384 WORM URL
+	supported remote types: git S3 bup directory rsync web webdav glacier hook
+	repository mode: indirect
+	trusted repositories: 0
+	semitrusted repositories: 3
+		00000000-0000-0000-0000-000000000001 -- web
+	 	BE1D8EC7-C64B-47DE-AD4E-2A50437532B4 -- cloud
+	 	E84568BA-6A4B-4AA1-B622-605B9248EDB1 -- here (eric laptop)
+	untrusted repositories: 0
+	dead repositories: 0
+	transfers in progress: none
+	available local disk space: 169 gigabytes (+1 megabyte reserved)
+	temporary directory size: 218 megabytes (clean up with git-annex unused)
+	local annex keys: 24
+	local annex size: 8 gigabytes
+	known annex keys: 25
+	known annex size: 8 gigabytes
+	bloom filter size: 16 mebibytes (0% full)
+	backend usage: 
+		SHA256E: 49
+	annex [master●] % git annex version
+	git-annex version: 3.20130114
+	local repository version: 3
+	default repository version: 3
+	supported repository versions: 3
+	upgrade supported from repository versions: 0 1 2
+
+