Was kann aus dem Katalog gelöscht werden?

[Reini]

Hallo!

Im Ordner, wo der Lightroom-Katalog liegt, befinden sich viele andere Dateien. Das ist sehr unübersichtlch, siehe Screenshot...
Was kann davon gelöscht werden, ohne den Katalog zu beschädigen?
Danke!

LG Reini

[GoldingD · Accepted solution]

28.03.2015-2-2-2.lrcat.lock

and 

28.03.2015-2-2-2.lrcat-wal

are temporary files created when you launch Lightroom Classic. When you close/exit Lightroom Classic they get deleted. Specifically the lock file exists to prevent your catalog from being opened more than once (session)

If Lightroom Classic crashes, they may not get deleted, and Lightroom Classic will not open your  catalog. If so, you would delete it yourself. Be very very careful of that

You may want to search the web on Lightroom Classic Lock File (in your language)

Following is an English language link:

https://helpx.adobe.com/lightroom-classic/kb/lightroom-error-catalog-cannot-be-opened-lrcat-lock.htm...

[GoldingD · Accepted solution]

28.03.2015.lrcat

28.03.2015-2.lrcat

28.03.2015-2-2.lrcat

28.03.2015-2-2-2.lrcat

are different versions of your catalog. When Adobe releases a new version of Lightroom Classic that is a major update, the SQL lite database coding gets changed enough that the Upgrade installation needs to create a new copy of your catalog, modified to work with the new SQL lite database. It needs to upgrade your catalog. You might remember a dialog screen informing you of that.

So

28.03.2015.lrcat

is your original catalog before several upgrades.

When an upgrade of your catalog occurs, Lightroom Classic upgrades your catalog, it copy's the catalog, rewriting to work with the new database,  and names the new catalog the same as the old catalog but with -2 added. So it looks like thus has occurred 3 times.

Note, if you were to try to open the older catalogs with your current version of Lightroom Classic, the catalog upgrade will occur, new name may be odd.

https://www.lightroomqueen.com/lightroom-upgrade-catalog/

[Reini]

Danke David!
Dann könnte ich alle alten Kataloge löschen und auch alle anderen Dateien, welche außerhalb von Ordnern liegen, richtig?
Liebe Grüße
Reini

[Rob_Cullen · Accepted solution]

Then I could delete all old catalogs and all other files that are outside of folders correctly?

Not really correct!

The files high-lighted in green of my screen-clip must be kept.

It appears that {28.03.2015-2-2-2.lrcat} is you most recent working catalog and the Preview & Sync folders with the same name- keep.

{Lightroom-Einstellungen} 'Settings' - may contain Presets etc - keep.

I suggest to copy unwanted files to another location for safety before any deletion is done of the others.

[Reini]

Hallo!
Vielen Dank  für eure kompetente Hilfe!

LG Reini