Multiple Backup Sets

[al3x]

Hi,

you are correct here. Every new differential backup directly relates to its predecessor full backup. And every incremental backup directly relates to its predecessor, which can be a another incremental, a differential or a full backup.

Example of a full chain (all files needed for latest backup):
Full1, Diff1, Incr1, Incr2, Incr3

Another example:
Full1, Incr1, Diff1, Diff2, Diff3, Incr2, Incr3, Full2
- Restore from Full1 requires Full1
- Restore from Incr1 requires Full1 and Incr1
- Restore from Diff1 requires Full1 and Diff1
- Restore from Diff2 requires Full1 and Diff2
- Restore from Diff3 requires Full1 and Diff3
- Restore from Incr2 requires Full1, Diff3 and Incr2
- Restore from Incr3 requires Full1, Diff3, Incr2 and Incr3
- Restore from Full2 and everything after that requires the new chain, beginning with Full2

So every new full backup basically starts a new chain, everything after that is related to that new full backup or its predecessors.

Hope that helps
Cheers!