Archive a VDMS Database¶
Since VDMS 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 VDMS 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