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Media Vaulting Jobs returned, as they were in BE2010

Created: 23 Jan 2014 | 2 comments
damager's picture
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Currently in BE2012, there is no automatic (via a scheduled task) way of vaulting media used in a series of backup jobs, as per the rules defined in Media Sets/Media Vaults.

As per the table below, BE2010 can follow the media set overwrite/append rules to allow subsequent jobs using the same media set to append to appendable tapes, before a final job exports all media in media sets that have a defined media vault, where the media set/media vault rules are met.

Again, as per the table below, BE2012 currently has no such option, and as such an "Export media after job completes" utility job is the only way to ensure used media is vaulted automatically.  This is incredibly inefficient and makes BE2012, in the scenario below 66% less efficient than BE2012 at utilising tape storage space - and with it can oversubscribe the "mail slot" capacity of a tape library (as in the case below it would in a library with only 3 mail slots - BE2010 exports just 3 tapes, but BE2012 exports 5).

BE2010:

Tape Usage:   10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Backup Job 1 Tape 1 Job 1 Job 1 Job 1 Job 1 Job 1 Job 1 Job 1 Job 1 Job 1 Job 1
  Tape 2 Job 1 Job 1                
                       
Backup Job 2 Tape 2     Job 2 Job 2 Job 2 Job 2 Job 2 Job 2 Job 2 Job 2
  Tape 3 Job 2 Job 2 Job 2              
                       
Backup Job 3 Tape 3       Job 3 Job 3 Job 3 Job 3 Job 3 Job 3  
                       
Media Vault Job Tape 1 Media Full                
Exports: Tape 2 Media Full                
  Tape 3 Media 90% Full              
All media in a media set where vaulting is defined and valid (for a given media vault) is exported in a single scheduled job.
 
BE2012:
Tape Usage:   10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Backup Job 1 Tape 1 Job 1 Job 1 Job 1 Job 1 Job 1 Job 1 Job 1 Job 1 Job 1 Job 1
  Tape 2 Job 1 Job 1                
                       
Backup Job 2 Tape 3 Job 2 Job 2 Job 2 Job 2 Job 2 Job 2 Job 2 Job 2 Job 2 Job 2
  Tape 4 Job 2                  
                       
Backup Job 3 Tape 5 Job 3 Job 3 Job 3 Job 3 Job 3 Job 3        
                       
Utility Job Tape 1 Media Full                
Exports: Tape 2 Media 20% Full              
  Tape 3 Media Full                
  Tape 4 Media 10% Full              
  Tape 5 Media 60% Full              

Each job (both full and incremental) has to export the media it uses immediately after its own job completes.  A separate BE2012 Export job doesn't seem to respect media set vault rules and would even try and export cleaning tapes! No schedulable Vault Media job exists.

 

My "idea" therefore, is to give BE2012 a schedulable Vault Media job capability, in line with that in BE2010, which will vault only media that is contained in library slots, within the rules as defined in each media set/vaulting rules properties.

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pkh's picture

How did you define your vault rules in BE 2010 in your example?

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damager's picture

For completeness, I am showing the 2010 Media Set Properties, and the 2012 Media Set Properties - both appear to be identically set. From 2010:

Media Set - 2010.pngVault Rules - 2010.png

And from 2012:

Media Set - 2012.png

 

This works very nicely in 2010, where as I say, a "Move Media To Vault" scheduled job follows the rules governed in the media sets, whereas there is no such job in 2012.

 

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