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  1. OpenShift Bugs
  2. OCPBUGS-18701

[Azuredisk-csi-driver] allocatable volumes count incorrect in csinode for Standard_B4as_v2 instance types

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    • The allocatable volumes count table for the Azure Disk CSI driver has been updated to include new instance types.
    • Bug Fix
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      Description of problem:

      [Azuredisk-csi-driver] allocatable volumes count incorrect in csinode for Standard_B4as_v2 instance types

      Version-Release number of selected component (if applicable):

      4.14.0-0.nightly-2023-09-02-132842

      How reproducible:

      Always

      Steps to Reproduce:

      1. Install Azure OpenShift cluster use the Standard_B4as_v2 instance type
      2. Check the csinode object allocatable volumes count
      3. Create a pod with the max allocatable volumes count pvcs(provision by azuredisk-csi-driver)

      Actual results:

      In step 2 the allocatable volumes count is 16.
      $ oc get csinode pewang-0908s-r6lwd-worker-southcentralus3-tvwwr -ojsonpath='{.spec.drivers[?(@.name=="disk.csi.azure.com")].allocatable.count}'
      16
      
      In step 3 the pod stuck at containerCreating that caused by attach volume failed of 
      09-07 22:38:28.758        "message": "The maximum number of data disks allowed to be attached to a VM of this size is 8.",\r

      Expected results:

      In step 2 the allocatable volumes count should be 8.
      In step 3 the pod should be Running well and all volumes could be read and written data

      Additional info:

      $ az vm list-skus -l eastus --query "[?name=='Standard_B4as_v2']"| jq -r '.[0].capabilities[] | select(.name =="MaxDataDiskCount")'
      {
        "name": "MaxDataDiskCount",
        "value": "8"
      }
      
      Currently in 4.14 we use the v1.28.1 driver, I checked the upstream issues and PRs, the issue fixed in v1.28.2
      https://github.com/kubernetes-sigs/azuredisk-csi-driver/releases/tag/v1.28.2

            rhn-support-tsmetana Tomas Smetana
            rhn-support-pewang Penghao Wang
            Penghao Wang Penghao Wang
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              Created:
              Updated: