I have several appliances scanning to discovery servers. The one for discovering SQL servers (physical machines) show all ISCSI attached disks. Virtual machines hosted in Hyper-V that have ISCSI attached disks are not showing. Does anyone know if this is expected behavior, or a bug? Thanks in advance!

@Christopher Garry Greetings! If the SCSI disk is “not” mounted on the Virtual Machine, it will not be discovered, please ensure that the disks are mounted/ associated with a virtualized guest; it will get discovered as part of guest discovery. Discovery storage available via network or independently is not supported. Reference link - https://learn.microsoft.com/en-us/azure/migrate/migrate-support-matrix-hyper-v-migration#hyper-v-vms Hope this answers your question. Feel free to write back to us if there any further questions! If the response helped, do " Accept Answer " and up-vote it

Does Azure Migrate discovery have issues detecting ISCSI attached storage for virtual machines?

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SadiqhAhmed-MSFT 46,291 Reputation points Microsoft Employee

2024-09-19T20:25:06.9133333+00:00

@Christopher Garry Greetings!

If the SCSI disk is “not” mounted on the Virtual Machine, it will not be discovered, please ensure that the disks are mounted/ associated with a virtualized guest; it will get discovered as part of guest discovery. Discovery storage available via network or independently is not supported.

Reference link - https://learn.microsoft.com/en-us/azure/migrate/migrate-support-matrix-hyper-v-migration#hyper-v-vms

Hope this answers your question. Feel free to write back to us if there any further questions!

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Christopher Garry 41 Reputation points

2024-09-23T14:20:09.5733333+00:00

The disks are mounted. The servers in question are file servers using ISCSI attached storage. Again, this seems to only be an issue with virtual machines. We have physical SQL servers that show the correct number of disks.

SadiqhAhmed-MSFT 46,291 Reputation points Microsoft Employee

2024-09-23T15:21:44.8633333+00:00

@Christopher Garry See the physical server support matrix - https://learn.microsoft.com/en-us/azure/migrate/migrate-support-matrix-physical-migration

Christopher Garry 41 Reputation points

2024-09-23T15:24:44.88+00:00

So, then the answer to my question is: Azure Migrate cannot identify the correct number of disks for virtual machines with iscsi attached storage during discovery. Correct?

SadiqhAhmed-MSFT 46,291 Reputation points Microsoft Employee

2024-09-23T19:42:21.8166667+00:00

@Christopher Garry That is correct. Azure Migrate cannot identify the correct number of disks for virtual machines with iSCSI attached storage.

This is because iSCSI attached storage is not directly visible to the virtual machine and is instead presented as a network-attached disk. As a result, Azure Migrate is unable to detect the number of disks attached to the iSCSI storage.

To migrate virtual machines with iSCSI attached storage to Azure, you will need to manually identify the number of disks attached to the iSCSI storage and configure the disks in Azure accordingly. You can do this by reviewing the iSCSI storage configuration and identifying the number and size of the disks attached to it.

Once you have identified the disks, you can create the appropriate number of disks in Azure and attach them to the virtual machine during the migration process. You will also need to configure the iSCSI initiator settings in the virtual machine to connect to the iSCSI storage in Azure.

It is important to note that migrating virtual machines with iSCSI attached storage can be more complex than migrating virtual machines with directly attached disks, and may require additional planning and configuration.
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