[GitHub] [cloudstack] sureshanaparti edited a comment on issue #3110: Root volume resize performed on scaling service offering

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sureshanaparti edited a comment on issue #3110:
URL: https://github.com/apache/cloudstack/issues/3110#issuecomment-925678949


   History/Background of volume resize with respect to _scaleVirtualMachine_ and _changeServiceForVirtualMachine_ APIs =>
   
   - Pre 4.11: Volume resize is not allowed through the service offering change in scaleVirtualMachine/changeServiceForVirtualMachine APIs.
   - Resize volume allowed for stopped VM through scaleVirtualMachine API (in 4.11.0) [PR: #2298].
   - Resize volume for stopped VM through changeServiceForVirtualMachine API (in 4.14.1) [PR: #4491].
   - Resize volume improvements for stopped VM in scaleVirtualMachine API (in 4.15.0) [PR: #4341].
   
   Now, both scaleVirtualMachine and changeServiceForVirtualMachine APIs allows volume resize operation, but have different checks/restrictions.
   
   @rhtyd @nvazquez @GabrielBrascher @DaanHoogland @andrijapanicsb and others, please provide your inputs/thoughts on the following.
   - Should we keep these checks consistent for both APIs (atleast for the volume resize operation)?
   - There is a PR (#5008) raised to decouple service and disk offerings. For backward compatibility, the volume resize operation is supported with these APIs for the service offerings mapped 1:1 with disk offerings (which are tagged is_compute_only). Should the volume resize operation be part of the disk offering change going forward? 
   
   


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