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 ...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. 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.
