Multiple Backup Sets

[DoItDaily]

Greetings. I have been working with support about multiple backup sets and by their answers I fear that I may not understand how Hasleo handles backups.

My schedule stipulates a new full backup every Sunday night. I also have a differential backup run every Monday, Tuesday, Wednesday, Thursday, Friday and Saturday night.

I am assuming that each of these differential backups relates to this first full backup.

I have scheduled a new full backup to run every Sunday night and then differential backups like before.

Here is my main question:

Do I assume correctly that the second set of differential backups will relate to the NEW full backup and NOT back to the initial backup or is this incorrect?

I fear I may not be clear on your programming with a schedule like this. Can you help me understand this basic question. Thank you for your kind help.

[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!

[DoItDaily]

Oh YES, THANK YOU that was very clear and reassuring! Nice going. So then that begs the question, if I manually delete a previous backup set using explorer, I would assume that that action will not effect a newer set of a full back up with its associated differentials. Is this correct? I would assume that if I need to restore, your program will let me choose which backup set and chain of differentials to restore. Is this correct?

Now I know that assuming things is always dangerous, but I am so pleased you are clarifying things for me.