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How to approximate Keystone Consumption with LUNs

  1. Last updated
    May 21, 2025
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Last Updated:
5/21/2025, 2:40:29 PM

Applies to

  • ONTAP 9
  • Keystone
  • AIQ Dashboards
  • SAN

Description

  • Keystone Logical Used is generally calculated by the method below:

logical-used-by-afs + size-used-by-snapshots = Keystone Logical Used

  • When LUNs are in use, the calculation changes. LUNs are logical containers whose size are added directly to logical-used-by-afs.
  • Thin provisioning and space reservation impact the amount of space occupied by the LUN and must be accounted for to accurately meter Keystone Logical Used.
  • The following procedure can be used to determine the approximate consumption values to be counted toward the corresponding service levels for a specific volume containing a LUN(s). 

 

 

 

 

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