OPERATIONAL DEFECT DATABASE
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During HCX Bulk/RAV migration validation, the following error message may appear:Disk size is not a multiple of 1024. RAV/Bulk migration is not supported
Identify a known condition in the VM that will prevent HCX vSR Bulk/RAV migrations from executing and provide the procedure to correct the VM settings.
The size of a vmdk in the VM may be configured with an odd size and/or with decimal values.This is often due to 3rd party backup solutions that back-up the disk seed.The appended disk value is part of the tool's validation of the byte value.
vSR Bulk/RAV migration cannot be performed for the affected VM.
The changes to the VM's vmdk configuration must be performed through vCenter prior to the HCX migration workflow.
IMPORTANT: In HCX version prior to 4.3 or earlier, The verification was done to verify if disk size is in multiple of 1024 bytes only.From HCX version 4.4 or later, additional check on disk sizes has been done as shown below: If the disk size is 2TB or less, the new size must be exact multiple of 8KBIf the disk size is between 2-8TB, the new size must be exact multiple of 16KBIf the disk size is between 8-32TB, the new size must be exact multiple of 32KBIf the disk size is between 32-64TB, the new size must be exact multiple of 64KB Note: [1KB = 1024byte] Manual workaround steps:Prerequisite: ensure no backups are running on the source VM, disable all backup operations temporarily.1. Access the vCenter with source affected VM name (object) --> Select "Actions" --> Select "Edit Settings.."2. In the disk hardware configuration section for the disks, ensure that the disk values are in multiple of 8KB bytes (see example)Note: the seen UI is cut-off and actually has an appended at the end, integers '558794' at the end being " 1.8100000000558794 TB" these disks 7 and 8 would need to be identified as 8192 bytes.3. Select the dropdown and change the disk sizing category from TB --> GB (sizing type) in order to add an appropriate integer value (without any trailing decimal point values). In the above example a value of 1855 GB was used to resolve the issue4. Click "OK" button to save the VM settings5. Retry HCX migration validation and it should pass (log-out and log-in may assist with any unexpected web-browsing caching)
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