Re: [Duplicity-talk] Google Drive vs. Google Cloud Storage

[Chris Vanden Berghe]

Just some feedback in case other people want to try Google Cloud
Storage. I have been using Duplicity with GCS for 1,5 months now and so
far so good. It's cheap at ~$4 / month for 200GB+ (inbound traffic is
free, very little outbound traffic used). I has been perfectly stable.
It's a bit on the slow side with a 200GB initial backup taking just over
24h to complete. I have sufficient bandwidth, so not entirely sure what
the bottleneck is... CPU, throttling by Google or the Duplicity backend
implementation. I have not tried Google Drive yet so cannot compare both
services.

Quick question: the first incremental backup after an initial full
backup is always very large. What would be the reason for that? Is there
an easy way to find out which files changed?

Chain start time: Wed Apr  2 08:28:07 2014
Chain end time: Fri May  2 03:30:30 2014
Number of contained backup sets: 31
Total number of contained volumes: 9388
 Type of backup set:                            Time:      Num volumes:
                Full         Wed Apr  2 08:28:07 2014              7653
         Incremental         Thu Apr  3 10:10:38 2014               672
         Incremental         Fri Apr  4 03:30:17 2014                 3
         Incremental         Sat Apr  5 03:32:09 2014                37
         Incremental         Sun Apr  6 03:34:26 2014                62
         Incremental         Mon Apr  7 03:30:21 2014                28
         Incremental         Tue Apr  8 03:30:15 2014                14
         Incremental         Wed Apr  9 03:30:21 2014               173
         Incremental         Thu Apr 10 03:30:21 2014                14
         Incremental         Fri Apr 11 03:30:19 2014                 8
         Incremental         Sat Apr 12 03:30:19 2014                 9
         Incremental         Sun Apr 13 03:30:19 2014                 5
         Incremental         Mon Apr 14 03:30:20 2014                26
         Incremental         Tue Apr 15 03:30:21 2014               149
         Incremental         Wed Apr 16 03:30:20 2014                15
         Incremental         Thu Apr 17 03:30:19 2014                 5
         Incremental         Fri Apr 18 03:30:20 2014                 6
         Incremental         Sat Apr 19 03:30:18 2014                 3
         Incremental         Sun Apr 20 03:30:19 2014                 6
         Incremental         Mon Apr 21 03:30:17 2014                12
         Incremental         Tue Apr 22 03:30:22 2014                51
         Incremental         Wed Apr 23 03:30:25 2014                63
         Incremental         Thu Apr 24 03:30:21 2014               197
         Incremental         Fri Apr 25 03:30:22 2014                47
         Incremental         Sat Apr 26 03:30:19 2014                 7
         Incremental         Sun Apr 27 03:30:19 2014                 5
         Incremental         Mon Apr 28 03:30:18 2014                17
         Incremental         Tue Apr 29 03:30:20 2014                59
         Incremental         Wed Apr 30 03:30:20 2014                24
         Incremental         Thu May  1 03:30:19 2014                 7
         Incremental         Fri May  2 03:30:30 2014                11


Chris.

---
On 03/04/2014 09:06, Chris Vanden Berghe wrote:
> Hi all,
>
> I understand that Duplicity supports both Google Drive and Google Cloud
> Storage through gdocs:// and gs:// respectively. Does anyone have a view
> on the (dis)advantages of using GD vs GCS as a Duplicity backend in
> terms of speed, reliability or other technical aspects? I understand
> that the pricing model is different (tiers vs. actual usage, network
> charges).
>
> Because I'm moving from LAN to cloud backups, I'm also rethinking my
> backup schedule. I used to make a full backup once per week with daily
> incrementals while keeping at least 2 full backups. This might no longer
> be practical as a full backup to GCS takes ~24h (for ~200GB). What is
> the main disadvantage of less frequent full backups? Slower retrieval,
> increasing total storage requirement or something else?
>
> Thanks,
> Chris.