Duration of verifying

Asked by A.M.

Hi
I've made a backup of all my pictures and uploaded them to my server (externally hosted). The total size is 22GB and I have 914 backup files. I'm doing a test-verification and it seems as I have to download 914 files to check?! Is that possible? I've started the check a while ago and now I'm here:

Processed volume 18 of 914

Am I doing something wrong or is it supposed to be this way? I hoped that verifying is a really quickly done task. Is there any way I can speed this up? Else this is useless to me if every verification takes hours to complete :/
Thanks!

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edso
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edso (ed.so) said :
#1

On 29.10.2014 00:36, A.M. wrote:
> New question #256329 on Duplicity:
> https://answers.launchpad.net/duplicity/+question/256329
>
> Hi
> I've made a backup of all my pictures and uploaded them to my server (externally hosted). The total size is 22GB and I have 914 backup files. I'm doing a test-verification and it seems as I have to download 914 files to check?! Is that possible? I've started the check a while ago and now I'm here:
>
> Processed volume 18 of 914
>
> Am I doing something wrong

no

>or is it supposed to be this way?

yes

>I hoped that verifying is a really quickly done task. Is there any way I can speed this up?

no. read what the manpage says about verify
 http://duplicity.nongnu.org/duplicity.1.html

>Else this is useless to me if every verification takes hours to complete :/

what's taking so long? downloading or verifying?

> Thanks!
>

nP.. ede/duply.net

Revision history for this message
A.M. (a25) said :
#2

Well the "useless" part wasn't meant in a criticizing way! It was my personal conclusion since it'd take me years to verify the 22GB, and I planned to do this daily. I thought it's somehow like in a cloud :/ Thanks anyway!

Revision history for this message
A.M. (a25) said :
#3

I have another question while this thread is still open:

Could I create and store the duplicity backup locally on my NAS, upload it to my external server and then synchronize it with a given tool? Like would that work from duplicity's point of view?
The only issue I see here is if one of the parts of the backup is changed the sync will upload a new file without deleting/replacing the old one, right?

My plan in general is this: Make an encrypted backup of my personal files and upload them to a external server for backup purposes. And I think this is my best shot at this without constantly having to download the backup I made, right?

Revision history for this message
edso (ed.so) said :
#4

On 29.10.2014 01:31, A.M. wrote:
> Question #256329 on Duplicity changed:
> https://answers.launchpad.net/duplicity/+question/256329
>
> Status: Answered => Open
>
> A.M. is still having a problem:
> I have another question while this thread is still open:
>
> Could I create and store the duplicity backup locally on my NAS, upload it to my external server and then synchronize it with a given tool? Like would that work from duplicity's point of view?

yes, use the file:// target and sync that to some remote location

> The only issue I see here is if one of the parts of the backup is changed the sync will upload a new file without deleting/replacing the old one, right?

backup volumes are never touched. they are merely deleted if old chains were discarded.

>
> My plan in general is this: Make an encrypted backup of my personal
> files and upload them to a external server for backup purposes. And I
> think this is my best shot at this without constantly having to download
> the backup I made, right?
>

if down-/upload speed is the limiting factor using a local file:// target and syncing that after duplicity runs is the general workaround.

..ede/duply.net

PS: make sure to use the latest duplicity 0.6.25 if you value your data.

Revision history for this message
A.M. (a25) said :
#5

Okay so just to check if I understand correctly: If I add let's say a folder with a bunch of pictures, what happens is that the one/a couple volumes are deleted and recreated with the new files?

Revision history for this message
Best edso (ed.so) said :
#6

On 29.10.2014 12:46, A.M. wrote:
> Question #256329 on Duplicity changed:
> https://answers.launchpad.net/duplicity/+question/256329
>
> Status: Answered => Open
>
> A.M. is still having a problem:
> Okay so just to check if I understand correctly: If I add let's say a
> folder with a bunch of pictures, what happens is that the one/a couple
> volumes are deleted and recreated with the new files?
>

_no_, a new set of metafiles and volumes is created being incremental to the older backup, which is left untouched.

..ede/duply.net

Revision history for this message
A.M. (a25) said :
#7

Ah okay so there're just new volumes added.
Thanks!

Revision history for this message
A.M. (a25) said :
#8

Thanks edso, that solved my question.