Re: [BackupPC-users] Where's the full backup the incrementals need?

[Craig Barratt via BackupPC-users]

In 4.x the incrementals are stored as deltas relative to the next (future)
backup.  So your unfilled backups #4 depends on #5, #5 depends on #6, and
#6 depends on the filled (full) backup #7.

Craig

On Wed, Dec 13, 2017 at 1:16 PM, Jamie Burchell  wrote:

> Hey
>
>
>
> Am I dreaming or did I read in the documentation that an incremental
> relies on a full backup staying around to support it?
>
>
>
> I’ve let BackupPC run for a month or so and logged in to the web interface
> today expecting to see one more full backup than I have configured, but
> that doesn’t seem to be the case?
>
>
>
> Backup#
>
> Type
>
> Filled
>
> Level
>
> Start Date
>
> Duration/mins
>
> Age/days
>
> 4 
>
> incr
>
> no
>
> 1
>
> 11/14 21:00
>
> 0.2
>
> 29.0
>
> 5 
>
> incr
>
> no
>
> 1
>
> 11/15 21:01
>
> 0.9
>
> 28.0
>
> 6 
>
> incr
>
> no
>
> 1
>
> 11/17 02:01
>
> 0.4
>
> 26.8
>
> 7 
>
> full
>
> yes
>
> 0
>
> 11/18 02:03
>
> 0.4
>
> 25.8
>
> 8 
>
> incr
>
> no
>
> 1
>
> 11/19 02:01
>
> 0.3
>
> 24.8
>
>
>
> According to the table, the oldest four incremental backups have no
> “parent” full backup. Is that to be expected?
>
>
>
> Cheers
>
> Jamie
>
> 
> --
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[BackupPC-users] Where's the full backup the incrementals need?

[Jamie Burchell]

Hey



Am I dreaming or did I read in the documentation that an incremental relies
on a full backup staying around to support it?



I’ve let BackupPC run for a month or so and logged in to the web interface
today expecting to see one more full backup than I have configured, but
that doesn’t seem to be the case?



Backup#

Type

Filled

Level

Start Date

Duration/mins

Age/days

4 

incr

no

1

11/14 21:00

0.2

29.0

5 

incr

no

1

11/15 21:01

0.9

28.0

6 

incr

no

1

11/17 02:01

0.4

26.8

7 

full

yes

0

11/18 02:03

0.4

25.8

8 

incr

no

1

11/19 02:01

0.3

24.8



According to the table, the oldest four incremental backups have no
“parent” full backup. Is that to be expected?



Cheers

Jamie
--
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