Forum Discussion

Shil's avatar
Shil
Level 2
11 years ago

About Deduplication in netbackup

We have planned to keep our monthly and yearly backups in to disk. Planning to use netbackup MSDP. Our current backup size is 10TB. Every month full bakcup and 1year retention. My question is first t...
7.6
Backing Up
Backup and Recovery
Deduplication Option
Documentation
Managing Backup Devices
NetBackup
Windows Server (2003-2008)
  • RiaanBadenhorst's avatar
    RiaanBadenhorst
    11 years ago

    Hi,

     

    Any subsequently backups would only take up a % of space, it doesn't matter if its daily, weekly, or yearly. It is the exactly the same if you put your daily backups on the appliance (mon, tue, wed, thu, fri, sat) and keep it for 2 weeks (which is 12 copies) as if you take a monthly and keep it for 12 months. You just count the copies on the appliance.

     

    My example here is just for illustration. Contact your local Symantec partner, as Marianne said, to do a calculation for you. Different data types get different compression rates, e.g. virtual machine are usually get high dedupe ratio, sharepoint on the otherhand doesnt.

RiaanBadenhorst's avatar
RiaanBadenhorst
Level 6
11 years ago

Hi,

 

Any subsequently backups would only take up a % of space, it doesn't matter if its daily, weekly, or yearly. It is the exactly the same if you put your daily backups on the appliance (mon, tue, wed, thu, fri, sat) and keep it for 2 weeks (which is 12 copies) as if you take a monthly and keep it for 12 months. You just count the copies on the appliance.

 

My example here is just for illustration. Contact your local Symantec partner, as Marianne said, to do a calculation for you. Different data types get different compression rates, e.g. virtual machine are usually get high dedupe ratio, sharepoint on the otherhand doesnt.