Citrix Hypervisor 8.2 : MCS Catalog update deletes Target base disks.

Citrix Hypervisor 8.2 : MCS Catalog update deletes Target base disks.

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Article ID: CTX459689

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Updated On:

Description

Xenserver audit.log throws ERROR:NOT_SUPPORTED_DURING_UPGRADE
  

Mar 30 02:38:59 XXXXX xapi: [20220330T00:38:59.214Z|audit||8715 HTTP 10.1.XX.XX->:::80|VDI.set_on_boot R:780016cf9118|audit] ('trackid=39b4363b70f699b0ab419280ab8b4fe2' 'S-1-XX_XX-XX-XX-8' 'XX\\\\XXXXX' 'ALLOWED' 'ERROR:NOT_SUPPORTED_DURING_UPGRADE: [  ]' 'API' 'VDI.set_on_boot' (('self' 'XXX-baseDisk' '112af85f-f007-475c-bee6-34b9e435dd6a' 'OpaqueRef:c78eae2c-5901-4e4d-81c2-6bceae94eb94')))

 

Resolution

  • Nodes in the Hypervisor pool were partially upgraded. Master was 8.2CU1 and rest of the pool were 8.2. 
  • Upgrade all the hosts in the Pool to use the same version. 
  • Citrix do not support any changes to the VM while the Pool is in partially upgraded status. 

Problem Cause

When you update MCS catalog, the corresponding base disks of the Targets are deleted and created again at Hypervisor level. 
When the Pool is in partially upgraded status Target Disk creation fails since VDI.set_on_boot operation fails, VDI.set_on_boot operation fails since hypervisor doesn't allow it while the Pool is in partially upgrade status. 
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