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Question

Optimizing Tape Copy Utilization

  • November 19, 2024
  • 2 replies
  • 56 views
A
Byte
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Hello, 

 

We have the following Secondary Copy to LTO9 Tape Retention configured across all our storage policies. I want to see what others are doing for extended tape copies to optimize utilization, based on raw tape media capacity, we are using more media than we expected due to the mixed retention not fully allowing the typical son, father, grandfather graduation. 

 

Also, does Commvault have a Media Calculator Estimator similar to Veeam’s?

https://www.veeam.com/calculators/simple/vbr/tape

 

TIA ! JR

 

 

LTO9 Tape Copy 

6-Month Retention(Basic Retention)
Daily Incremental
Weekly Fulls
--
12-Month Retention(Extended Retention)
Monthly Full
--
24-Month Retention(Extended Retention)
Quarterly Full

 

-- 

 

A
Vaulter
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​@aledor09 , you can look to use the Global Secondary copy policy. The retention will be defined at the pool level. All secondary copies using similar retention from different storage policies could use this pool. This results in effective tape utilization. You can follow this link for more info

 

https://documentation.commvault.com/2024e/expert/creating_global_secondary_copy_policy.html

 

Damian Andre
Vaulter
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Extended retention will always consume more media as you can’t recycle the type until all jobs have met retention. A better idea is to leverage a separate copy of longer retention to group jobs of the same relative retention - ​@Abhishek Narulkar has a great idea allowing you to do an extended retention copy across multiple storage policies

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