Hyper V GRT enabled virtual machine based duplicate to cloud deduplication storage yields less deduplication percentage

Article: 100054191
Last Published: 2023-03-06
Ratings: 0 0
Product(s): Backup Exec

Problem
 

Hyper V GRT enabled virtual machine based duplicate to cloud deduplication storage yields less deduplication percentage
 

Error Message
 

This is a section from Duplicate Job Log. This is where the deduplication percentage can be checked 
for the Hyper V Virtual Machine GRT based duplicate job ( to cloud deduplication storage). If no changes or relatively less changes are happening on the virtual machine but deduplication percentage is less during duplicate to cloud then this is the correct technote being referred to. The direct hyper v GRT enabled virtual machine backup to cloud deduplication storage is not impacted.

Deduplication Stats::PDDO Stats (multi-threaded stream used) for (SRVBKUP): scanned: 563425394 KB, CR sent: 460874761 KB, CR sent over FC: 0 KB, dedup: 18.2%, cache disabled, where dedup space saving:1.3%, compression space saving:16.9%
This job ran as a set copy job.

 

Cause
 

The duplicate job chunking was not occurring in the manner like direct to cloud dedupe was happening.
 

Solution

 

There are no plans to address this issue by way of a patch or hotfix in earlier versions of the software at the present time.  However, the issue has been addressed in the revision of the product specified at the end of this article. 
 
Please contact your Veritas Sales representative or the Veritas Sales group for upgrade information including upgrade eligibility to the release containing the resolution for this issue.

This issue is resolved in Backup Exec 22.1.

References

Etrack : 4073219

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