I have been studying to upgrade my CNE to NCE, and am reading about Dynamic Storage Technology (DST) on OES 2 Linux.

It sounds like it's only volume operations are the ability to move data?

Is there no scenario, with DST, where my Primary Volume is what the end-user regularly uses, and any modified data is copied to the Shadow Volume so that it could be available in the even the server housing the Primary Volume is gone?

Just wondering if DST provides a cheap, software level redundancy scenario.