Strategy for a backup of Video EEG data...

I've a LTO9 library, a NAS with 80+TB of Video EEG (LTM) data, and i need to
backup them.

This is an 'archive', organized as:

	Storage
	  Storage/Folder1
	  Storage/Folder2
	  ...

where roughly every year a new 'FolderX' get created. Exams go only on the
latest FolderX, when a 'FolderX' get created, 'Folder(X-1)' became archive
and get not modified anymore.

Because is an archive, it suffices to to a single backup, so i suppose to
build a pool with some tapes with infinite or so retention, doa full, and
then every year (every a new 'FolderX' get created) do an incremental.


But the fist full will take probably some weeks to complete...


I can build a fileset that list Storage/Folder1, do a backup, then add
Storage/Folder2 and so on... but every time i change fileset backup get
resetted to full, i suppose.


Someone have some hints on how can i handle this? Thanks.

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