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Best Practices: Separate Storage Pools for Weekly vs Monthly Tape Aux Copies?

  • January 9, 2026
  • 3 replies
  • 23 views

Nikos.Kyrm
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Hello Community and Happy New Year!

In a client, we have a primary storage policy using a Disk Library (DDB). Needed also a tape out (copy-2). The HPE tape library is already configured and accessible via MediaAgent.

For these auxiliary copies (Copy-2) to tape, we need to create two distinct groups:

  • Weekly backups with 4 weeks retention

  • Monthly backups with infinite retention
     

What is the recommended best practice?

  • Stick with the default storage pool for both aux copy types (and rely on retention rules/scheduling to differentiate)?
  • Or create two dedicated storage pools (e.g., "Weekly_Tape_Pool" and "Monthly_Tape_Pool"), assign specific tapes/drive pools to each, and configure the aux copy operations/rules to target the appropriate pool based on backup frequency?

Also, it’s important the tapes to remain strictly separated, no mixing of weekly and monthly data on the same tapes! 
 

Thanks in advance for your insights and real-world experience!

Best regards,
Nikos

3 replies

Nikos.Kyrm
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  • Author
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  • January 14, 2026

Hi again, I’m posting Arlie’s reply here:

 

Create Dedicated Storage Pools for Each Retention Group

  • Create two separate tape storage pools:
    • One for weekly backups (e.g., Weekly_Tape_Pool)
    • One for monthly backups (e.g., Monthly_Tape_Pool)
  • Assign specific tapes and drive pools to each storage pool.
    This ensures that weekly and monthly backups are written to different sets of tapes and cannot be mixed.

 

Looks that this is the recommended way to go, but still I would appreciate any feedback from real-world similar scenarios.

Nikos


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  • Vaulter
  • January 20, 2026

Hi ​@Nikos.Kyrm,

Good day.

Creating two separate storage pools for Weekly and Monthly backups would be the best approach.  Also, this will also ensure that weekly and monthly data are not mixed on the same tapes.

 

Regards,

Wasim

 


Nikos.Kyrm
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  • January 20, 2026

Hi ​@Nikos.Kyrm,

Good day.

Creating two separate storage pools for Weekly and Monthly backups would be the best approach.  Also, this will also ensure that weekly and monthly data are not mixed on the same tapes.

 

Regards,

Wasim

 

Hello ​@Wasim 

Thanks for your reply. 

So, it is not necessary to assign specific tapes and drive pools to each storage pool to avoid mixing weekly and monthly policies on the same tapes?