Thanks for the report. Currently SDFS does not support hardlinks. I
will be providing support for these in the near future but that may be
some of the errors you are receiving. I will be releasing a new
version of SDFS very shortly that has a fix for issues around rapid
file creation. I believe this issue could effect tar expansion since
small files are created in rapid succession. Once a file is written to
SDFS its there and the integrity is solid.
In terms of storage growth, Tars, when extracted do not dedup against
the tar itself. This is due to the fact that the files within the tar
do not align with the offsets of the SDFS filesystem.
Here is an example of what will not dedup well:
Tar to Extracted files within tar
Tar with one file within it changed or removed
Here is an example of what will dedup well:
actual files, with slight changes within copied directly to filesystem.
I will do more testing with Tar Extraction and let you know my results.