SAN Based restore fails "Unable to copy the virtual machine disk using the VMware VixDiskLib"

Question

I'm using Backup Exec 22 on Windows Server 2022. I'm trying to backup and restore a three node VM cluster in with a shared SAN storage using SAN transport mode.

When I'm trying to restore the backed up VM using SAN mode I get the below error,

Unable to copy the virtual machine disk using the VMware VixDiskLib.

Note: SAN based restore worked earlier and I had to reinstall Backup Exec for another reason.

First time when SAN based backup worked I did a full install and second time below are the features I selected.

pj_backup · Answer

Firstly I'd check the SCL &amp; HCL to ensure your SAN cluster environment is supported:&nbsp;https://www.veritas.com/content/support/en_US/doc/BE_22_SCL&nbsp;https://www.veritas.com/content/support/en_US/doc/BE_22_HCL&nbsp;Also maybe worth reviewing this TN:https://www.veritas.com/support/en_US/article.100005390&nbsp;-&nbsp;Unable to copy the virtual machine disk using the VMware VixDisklibCould also be a driver issue - eg&nbsp;https://vox.veritas.com/t5/Backup-Exec/Final-error-0xe0009578-Unable-to-copy-the-virtual-machine-disk/td-p/440073

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SAN Based restore fails "Unable to copy the virtual machine disk using the VMware VixDiskLib"

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