How to Migration Windows SQL Cluster with pRDMs in VMware to another VMWare environment

Question

What are the pre-conversion steps to be taken at Microsoft Windows SQL Cluster level before converting the pRDMS into VMDKs in VMWARE

Hi Team,

We have Multiple Windows Two Node Active/Passive Clusters in our VMware vSphere running vSphere 6 and vSphere 7 environment.

The clusters are built with pRDMS as the shared disk. We are planning to migrate these Cluster Servers to new Server hardware with vSphere environment deployed.

The strategy we are following is:

1. Break the Windows SQL Cluster and run all the SQL Cluster services from one Active Node.
2. Convert the pRDMS into VMDKs using the storage vMotion.

We have ran the above two steps and after converting the pRDMS into VMDKs the cluster disks are failing and not coming online and also the disks at computer management too are not coming online.

Please let me know do we need to run any pre-migration tasks with respect to windows and sql cluster services before running the conversion of pRDMS into vRDMS?

Answer 1

Hey,

The issue might be related to the cluster reservation, which can be cleared. https://learn.microsoft.com/en-us/troubleshoot/windows-server/high-availability/troubleshoot-cannot-bring-physical-disk-online

You can use the following command to clear reservation and bring disk online in disk management.

Clear-ClusterDiskReservation

https://learn.microsoft.com/en-us/powershell/module/failoverclusters/clear-clusterdiskreservation?view=windowsserver2022-ps

As for pRDM conversion, you can also use StarWind V2V converter to convert pRDM to VMDK.
https://www.starwindsoftware.com/starwind-v2v-converter

Cheers,

Alex Bykovskyi

StarWind Software

Note: Posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

Answer 2

Hi @Vinod Kumar Vallur

Please let me know do we need to run any pre-migration tasks with respect to windows and sql cluster services before running the conversion of pRDMS into vRDMS?

You need make sure that the Windows and SQL Server versions in the target environment are compatible with the configurations of pRDMS.

Also, you need to check the storage configuration and connections to ensure the new VMDK can be recognized and accessed properly.

Best regards,

Cosmog

---

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".