Achive a Database¶
Since ApertureData Platform uses PMGD (which uses mmap to a large virtual memory space but maps physical pages only when needed) the size on disk shown for the database by some utilities can be quite large. Similarly, copying a database can take a long time. So we use a different method of copying/archiving a ApertureData Platform database.
Assume a database called db at /home/user/vdms/:
sudo apt-get install bsdtar # this is used for doing the sparse copy cd /home/user/vdms/ bsdtar cvfz vdms_archive.tar.gz db tar -xvSf vdms_archive.tar.gz
Tested on Ubuntu 16.04, more info here