If you have created slave sites with Symbolic Links, it is important to perform a backup that is able to restore the symbolic links.
If you just perform a backup without the symbolic link, when you have restore the master websites, you can go in JMS and resave each slave sites to build the symbolic links.
Perhaps you will have to review the "deploy folder" of each slave site before rebuilding them.
Concerning the DB, if you have shared tables the you can use PHPMyAdmin that is able to backup and restore the views correctly.
Just becarefull if you have created links across DB because in this case, the views should be modified to reflect the new DB names.
So in summary, you should be able to restore the master website that by definition does not need symbolic link and does not contain any MySQL views.
After that when you resave the slave site, you should be able to rebuild the symbolic link if you don't have restore them manually.
You can also try rebuild the slave sites DB with JMS.
Once you have restored the links and rebuilt the DB, you could restore your DB data.
If you want that we help you doing such transfert, we also propose billable support that you can order at
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