mlsorensen opened a new pull request, #7955:
URL: https://github.com/apache/cloudstack/pull/7955

   ### Description
   
   This PR increases the overhead calculated for ScaleIO encrypted volumes 
slightly from 32MB to 128MB, due to edge cases found with lots of small writes 
over many weeks causing excessive fragmentation.  Ideally discard/fstrim is 
being issued in the guest to free some meaningful amount of space occasionally, 
but this should help for situations where that isn't guaranteed.
   
   ### Types of changes
   
   - [ ] Breaking change (fix or feature that would cause existing 
functionality to change)
   - [ ] New feature (non-breaking change which adds functionality)
   - [x] Bug fix (non-breaking change which fixes an issue)
   - [ ] Enhancement (improves an existing feature and functionality)
   - [ ] Cleanup (Code refactoring and cleanup, that may add test cases)
   
   ### Feature/Enhancement Scale or Bug Severity
   
   #### Feature/Enhancement Scale
   
   - [ ] Major
   - [x] Minor
   
   #### Bug Severity
   
   - [ ] BLOCKER
   - [ ] Critical
   - [ ] Major
   - [ ] Minor
   - [x] Trivial
   
   
   ### Screenshots (if appropriate):
   
   
   ### How Has This Been Tested?
   Tested locally, and updated the unit tests to verify the return value is as 
expected.


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