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Level 3
October 16, 2015
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Live Copy for DAM Assets?

  • October 16, 2015
  • 13 replies
  • 3755 views

Hi All,

Is there a feature, similar to "live copy" for DAM assets?  I'm looking for a way to create a parent/child relationship between assets, where the "children" assets inherit from the "parent".  We are currently running AEM 5.6.1, but would be interested in new features that may exist on 6.0 or 6.1 as well.

Thanks!

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Best answer by ogill

Because of the unique way that AEM stores assets, if you have the exact same file in two locations in the repository, physically only 1 file is stored. The reason being, that each file has a unique SHA1 checksum, the checksum value is used to create a folder/file in the datastore[1]. In this way, you don't duplicate storage for the same file. If the file is modified in any way and uploaded again, only then will a new file in the datastore be created.

However, having a central DAM is always preferable as all instances of an asset will get updated at the same time, otherwise you have to update all nodes that pointed to the original file, which can become inefficient and error prone.

Regards,

Opkar

[1]https://docs.adobe.com/docs/en/cq/5-6-1/core/administering/persistence_managers.html

13 replies

ogillAdobe EmployeeAccepted solution
Adobe Employee
October 16, 2015

Because of the unique way that AEM stores assets, if you have the exact same file in two locations in the repository, physically only 1 file is stored. The reason being, that each file has a unique SHA1 checksum, the checksum value is used to create a folder/file in the datastore[1]. In this way, you don't duplicate storage for the same file. If the file is modified in any way and uploaded again, only then will a new file in the datastore be created.

However, having a central DAM is always preferable as all instances of an asset will get updated at the same time, otherwise you have to update all nodes that pointed to the original file, which can become inefficient and error prone.

Regards,

Opkar

[1]https://docs.adobe.com/docs/en/cq/5-6-1/core/administering/persistence_managers.html

Adobe Employee
October 28, 2020
joerghoh
Adobe Employee
Adobe Employee
October 28, 2020

in case you are still interested, in AEM 6.4.4 and 6.5.2 (not sure about the exact version), MSM for DAM is supported.