Benefit to enabling Horizontal DDB

  • 19 May 2023
  • 1 reply

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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?


1 reply

Userlevel 4
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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: