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Is changing Fractional Reserve on a volume a non disruptive process?

  1. Last updated
    Mar 28, 2024
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Category:
ontap-9
Specialty:
core
Last Updated:
3/28/2024, 3:37:38 PM

Applies to

ONTAP 9

Answer

  • Yes, changing the Fractional Reserve value from 0 to 100 (Enabling Fractional Reserve) is a non disruptive process.
  • However, before changing the Fractional Reserve from 100 to 0 (Disabling Fractional Reserve), the lun utilization should be less than total size of the lun.
  • If Fractional Reserve is changed from 100 to 0 when lun is overutilized it may cause data loss.
  • To confirm if lun is over utilized, check the size of the lun from storage end and compare it with the utilization of that lun on host end.
 

Additional Information

 

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