We have a customer who acquired 2 Dell DataDomains and were understanding that Commvault was interacting with the APIs on the DataDomains to launch auxiliary copies in “replication mode” so that the media agent would not be the data mover.
After configuring the DD libraries and creating a secondary copy, the media agent is currently working as the data mover so this is not the expected behavior.
Does anyone have any experience or information about how Commvault and the DataDomains interact for Aux copies?
Thank you!
Best answer by Swati Himmatramka
Hello Steve,
The Commvault Data Domain Boost Client library will allow MediaAgents and servers running workloads to be a full featured client of the Dell EMC® Data Domain®, leveraging the native APIs of the DD Boost SDK with direct data movement to and from the storage device. This will leverage client-side native Data Domain deduplication, and API based file copy and synthesis for optimized auxiliary copies and synthetic full backups.
Auxiliary Copies will leverage the native DD Boost APIs for optimized data movement
The Commvault Data Domain Boost Client library will allow MediaAgents and servers running workloads to be a full featured client of the Dell EMC® Data Domain®, leveraging the native APIs of the DD Boost SDK with direct data movement to and from the storage device. This will leverage client-side native Data Domain deduplication, and API based file copy and synthesis for optimized auxiliary copies and synthetic full backups.
Auxiliary Copies will leverage the native DD Boost APIs for optimized data movement
I did get a document from Commvault and as Swati mentionned, this is in the early stages. The 11.32.26 patch was applied and by selecting the “DDBoost Client” when creating the library we were able to get the behavior we wanted. The DataDomains are using their own replication to do the aux copy, therefore freeing the MediaAgent from its data mover role.
It also seems that by using the “Storage Accelerator” package on the clients, they will be able to write directly to the DataDomain. We have yet to test it.
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