blobxfer Current Limitations

Please read this section carefully for any current known limitations to blobxfer.

Client-side encryption is currently only available for block blobs and Azure Files.
Azure KeyVault key references are currently not supported.

Encrypted uploads/downloads cannot currently be resumed as the Python SHA256 object cannot be pickled.
Append blobs currently cannot be resumed for upload.

stdin uploads with --mode set to page without the --stdin-as-page-blob-size parameter will allocate a maximum-sized page blob and then will be resized once the stdin source completes. If such an upload fails, the page blob will remain maximum sized and will be charged as such; no cleanup is performed if the upload fails.
stdin sources cannot be resumed.
stdin sources cannot be encrypted.
stdin sources cannot be stripe vectorized for upload.
For optimal performance, --chunk-size-bytes should match the "chunk size" that is being written to stdin. For example, if you were using dd you should set the block size (bs) parameter to be the same as the --chunk-size-bytes parameter.

Empty directories are not created locally when downloading from an Azure File share which has empty directories.
Empty directories are not deleted if --delete is specified and no files remain in the directory on the Azure File share.
Please see this article for general limitations with Azure File Shares.

MD5 is not computed for append blobs.
Virtual directories in Azure with no characters, e.g. mycontainer//mydir are not supported.
Downloading of a remote path is based on prefix-matching. Thus a remote path of mycontainer/mydir will also download mycontainer/mydirfile.txt and mycontainer/mydir1 in addition to mycontainer/mydir. To only download contents of mycontainer/mydir, please specify an --include filter. For this example, the include filter would be --include mydir/*. Ensure that the parameter is quoted or shell globbing is disabled. Note that a remote path of mycontainer/mydir/ will not work as intended as, internally, blobxfer will strip the trailing slash.
/dev/null or nul destinations are not supported.
Application of access tiers can only be applied to block blobs on either Blob Storage or General Purpose V2 Storage accounts. Please see this article for more information.