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VSS to WMI policy and differential backups same size as full

Zippo0526
Level 3

Hello,

I am using NBU version 8 on a Windows platform and recently I switched a couple clients from using VSS Hyper-V policy to WMI Hyper-V policy as a test an what I am finding is that now the differential backups are of similar backup size as the fulls though the file counts are in line with differentials. 

Examples

VSS Full - Job size = 4.445TB and files = 9826764 backed up

VSS Diff - Job size = 3.509GB and file = 1521 backed up

WMI Full Job size = 4.341 TB and file = 9903053 backed up

WMI Diff - Job size = 4.331TB and file = 804 backed up

So basically it is backing up the amount of files I would expect but at a fill backup job size.

I hope someone can help make sense of this.

Thanks,

Scott

1 REPLY 1

Thiago_Ribeiro
VIP
Partner    VIP    Accredited

Hi @Zippo0526,

I don't know much about Hyper-V, but Would be something like that....

Notes_Pre-requesites-for_Hyper-V.JPG

Hope this help you.

Thiago