René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Inconsistency with respect to volume size and disk offerings","articleBody":"### The required feature described as a wish\n\nISSUE TYPE\n\nEnhacement/Bug\n\nCOMPONENT NAME\n\nComponent:  Enhancement/Bug\n\nCLOUDSTACK VERSION\n\nCloudstack version 4.20.x\n\nSUMMARY\n\nInconsistency with respect to volume size and disk offerings \n\nAs this could cause usage issue for the operator \n\n\n**Steps to reproduce the issue** \n\nFollowing  are the scnearios where there is a mismatch between  volume size and its associated disk offerings.\n\nThis could cause usage issues  for the  cloud operator \n\nScenario1 \n\n1. Use or create a  diskoffering disk which has \"Disk size strictness\" as false and a fixed Disk size\n\n2. Deploy a vm with a data disk offering, let's say using the default Small disk offering ( 5gb)\n\n3. Stop the vm\n\n4. Change the disk offering to Medium API using tha api or the UI \n\nhttps://cloudstack.apache.org/api/apidocs-4.21/apis/changeOfferingForVolume.html\n\n (changeOfferingForVolume)\n\n5. The data disk volume size changes to 20 gb\n\n6. Disk offering remains Small\n\n\n\nScenario2 \n\n1. Create compute offering with \"Disk offering strictness\" set true\n\nScreenshot\n\n\u003cimg width=\"852\" height=\"334\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/4f7b8ce4-4b33-4927-9288-e0e38137f404\" /\u003e\n\nLet's say small disk offfering \n\n2. Launch a vm with root disk \n\n3. Stop the vm \n\n4. Resize of the root volume to 10 gb\n\n\n\nScenario 3 \n\n1. Create a disk offering with \"Disk size strictness\" true  on shared storage ( say 10gb)\n\n\n\n2. Deploy a vm with data disk on the shareed storage\n\n3. Stop the vm \n\n4. Migrate the data disk  volume to  local storage and replace disk offering to a local disk offering ( of size 20gb)\n\n5. Size of the disk remains 10gb but the offering  is differnnet \n\nScreenshot \n\n\u003cimg width=\"940\" height=\"876\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/69282290-9785-47ec-94c5-e6a0880509b4\" /\u003e\n\n\nCurrent behaviour \n\nThe Inconsistency can be  reduced when the user applies the following configuration \n\nCreate a root disk  with Disk  offering strictness  \n\nCreate a data disk with Disk size strictness\"\n\n\n\nEnhacement request \n\n\n\nIntroduce a global parameter to disable the resize operation for any volume \n\nIntroduce the Disk offering strictness option to disk offerings also, \n\nCurrently its only available for compute offerings ","author":{"url":"https://github.com/kiranchavala","@type":"Person","name":"kiranchavala"},"datePublished":"2025-09-30T08:26:10.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/11762/cloudstack/issues/11762"}