More than one basedisk for a catalog in a storage.

1. Find the UUID of the storage with this issue on Hypervisor.
2. Run following PowerShell commands in any DDC to find the ProvisioningSchemeID for the catalog:
   • asnp Citrix*
   • Get-brokercatalog -Name xxx | fl ProvisioningSchemeID //xxx is your catalog name
3. Find Database Table [DesktopUpdateManagerSchema].[ProvisioningSchemeVMImageLocation] under XenDesktop's database.
4. Find DiskID via ProvisioningSchemeID and StorageID mentioned above in the db table.
5. Switch to XenServer console
   1. Run command: xe vdi-list uuid=xxx #Check the vdi information
   2. Run command: xe vdi-param-set uuid=xxx name-label=original_name-Actual#rename
6. Remove other base disk in the storage
7. If required, run command: xe vdi-param-set uuid=xxx name-label=original_name #Rename again

Problem Cause

The free space of storage is not enough, and then rename the diff disk failed.