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Size of Application/Backup and Data Written Terminology Understanding

  • 26 May 2021
  • 6 replies
  • 5119 views

Userlevel 4
Badge +13

Hi there,

I would like to understand what is the diferrence between Size of Application, Size of Backup and Data Written.

Below there is my understanding so far, please make me correct if I am wrong.

 

Size of Backup - Total size of data that should be backed up (including Index files)

Data Written - Total size of data physically stored to the library/disk

Size of Application - found this definition “The original size of the data before compression”, then what is the difference between Size of Backup and Size of Application?

 

I would be grateful for your ideas.

 

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Best answer by Mike Struening RETIRED 26 May 2021, 18:15

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6 replies

Userlevel 7
Badge +23

Hey @drPhil !

Here’s a quick summary:

  • Size of Application is the scanned size of what we need to backup (before any dedupe, compression, etc.)  Basically Front end Terabytes.
  • Size of backup is what we need to actually back up including metadata
  • Data Written is how much is actually on media (so dedupe and compression factored in)

Let me know if that clarifies!

Userlevel 4
Badge +13

Hey @drPhil !

Here’s a quick summary:

  • Size of Application is the scanned size of what we need to backup (before any dedupe, compression, etc.)  Basically Front end Terabytes.
  • Size of backup is what we need to actually back up including metadata
  • Data Written is how much is actually on media (so dedupe and compression factored in)

Let me know if that clarifies!


Hi @Mike Struening, thanks for giving an explanation!

Userlevel 7
Badge +23

Anytime!

Userlevel 7
Badge +23

As promised, replies for @Kamil W ‘s issue are moved to their own thread for better tracking:

 

Badge +1

Hey @drPhil !

Here’s a quick summary:

  • Size of Application is the scanned size of what we need to backup (before any dedupe, compression, etc.)  Basically Front end Terabytes.
  • Size of backup is what we need to actually back up including metadata
  • Data Written is how much is actually on media (so dedupe and compression factored in)

Let me know if that clarifies!

thanks Mike!

Userlevel 2
Badge +4

How do I retrieve “Size of backup” of every client or Client group?

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