VM shows physical mode as unreadable RDMs after DRS put VM on new host

Need help with a problem:

a virtual machine with pRDMs which is part of a VCS configuration has been closed, host migrated manually again, then power on, DRS he moved to yet another host.   and for some reason, the RDM are now unreadable

Does anyone have an idea why this happened and how to fix this?

Notes - for this virtual machine DRS has been on 'manual', while the clusters more DRS setting is fully automatic.     Because it is set to manual, I wasn't the one that vaulted to the top of the virtual machine, but I guess the user who did it was invited to place the virtual computer somewhere and he chose to place it on a new host then that it had migrated to.

Made this recommendation of the DRS and move them to the new host clustered VM ability to see the pRDMs?

In the guest OS I run diskpart and the disks are online, but appear as unreadable.

Thanks for advice on this one to help us understand the behaviour here, and what could have caused this.

I am perfectly aware that the VNMware cannot vmotion VMs with shared during an attempt of vmotion SCSI controllers.  But it's not clear to me that the process is under the covers when DRS wants to move a virtual machine somewhere in the power.

DRS uses vmotion to move VMS between hosts and it should has failed, if they are configured for shared scsi - I do the bet when the virtual machine has been powered and he was placed on the host wroong who has no access to the RDM - powering the virtual computer if you start on the correct host do you have access ot the RDM?

Tags: VMware

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