Question

Benefit to enabling Horizontal DDB

  • 19 May 2023
  • 1 reply
  • 171 views

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Hello,

What are the benefits to enabling the horizontal DDB, BOL explains how enable this feature, but nothing about the real benefits except that split the DDB in 3 section first for File system, another for Database and the last one for VM.

Can I expect to see an improvement in backup performance or an increase in deduplication performance that would further reduce on-disk consumption?

Thanks,


1 reply

Userlevel 4
Badge +11

Hi @ChrisL73 

Horizontal scaling improves deduplication efficiency because similar data types deduplicate more efficiently than dissimilar data types.

Also, the Commvault software automatically creates a new deduplication database when either the free space on a deduplication database partition disk reaches the threshold or the query and insertion (QI) time exceeds the threshold.

For more information, please review the following URL:

https://documentation.commvault.com/2022e/expert/12411_deduplication_building_block_guide.html#b157797_horizontal_scaling_of_ddbs

 

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