<div dir="ltr">Hello,<div><br></div><div>Great question. And a great topic to discuss.</div><div><br></div><div>I am going to share my strategy for this. This is not going to be for everyone. But maybe it can inspire someone else.</div><div><br></div><div>What I do is that I add all my photos incl. any sidecars or other meta-files to subversion[0].<div>I have a local subversion server.</div><div>Any changes are immediately tracked.</div><div>I cannot easily lose images by user error as long as they are added to subversion. Even when I explicitly delete photos, I can get them back if I really have to.</div><div>The subversion server is then backed up using a 3-2-1 backup strategy[1]</div><div>My photo collection is big. (total size is measured in TBs)</div><div><br></div><div>This strategy provides some rather good safety guarantees. However, it does come with some disadvantages, including;:</div><div><br></div><div>1: It takes at least 2x size on the machine who has the checkout/working copy of the fotos. As well as an additional copy on the subversion server. (I am not even counting the real backups here). However, I think the size disadvantage is really a small price to pay for the safety. I likely pay around 3x the price for storage this way, however, SATA disks are cheap and my photo collection is valuable to me.</div><div><br></div><div>2: The use of Subversion is a bit out-dated. However, I have been using this scheme for ~15 years now. And it works very well. If I were to design it again I would like look into a more modern VCS for this. Maybe Git. Maybe something else that is better suited for binary files.</div><div><br></div><div>3: I have to use command-line tools to work with subversion. This is fine for me, but it every one's cup of tea. I have a few neat shell aliases to help me with this. I could probably find a decent GUI interface to Subversion at this stage, but using the CLI does not bother me too much. </div><div><br></div><div>4: Lacking integration to most programs. Neither Digikam nor most other photo tools support Subversion.</div><div><br></div><div><br></div><div>[0]: Subversion: <a href="https://subversion.apache.org/">https://subversion.apache.org/</a></div><div>[1]: 3-2-1 backup strategy: <a href="https://www.backblaze.com/blog/the-3-2-1-backup-strategy/">https://www.backblaze.com/blog/the-3-2-1-backup-strategy/</a></div><div><br></div><div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Den søn. 21. nov. 2021 kl. 20.11 skrev Henrik Hemrin <<a href="mailto:hehemrin@hemrin.com">hehemrin@hemrin.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">A question about backup. <br>
<br>
My background is that I have used Photoshop Elements for years. I backup primarily in two ways: <br>
- Copy and paste of folders with photos (incl sidecars)<br>
- Backup tool included in Photoshop Elements, which includes all to restore Photoshop Elements. <br>
<br>
I am relatively new to DigiKam. I have not found any similar backup tool included. I use DigiKam as Linux Appimage and (soon) on macOS as well. As I understand, I must myself "copy and paste" (or any script or whatever method I add myself) and do a backup of: <br>
a) configuration file digikamrc<br>
b) data bases <br>
c) folders with photos (incl sidecars)<br>
<br>
Is this correctly understood? Any further advice? <br>
<br>
Best regards <br>
Henrik Hemrin</blockquote></div>