Tutorial: How to Move from One Storage Platform to Another with MS Cluster Servers & RDMs in VMware

 

Step 2 - Add New LUNs

Note - You may want Steps 1, 2 and 3 to be completed by a storage administrator, unless your that guy too!

 

1.  Create Quorum LUN (usually 1GB in size).

2.  Create additional LUNs (LUN size if not identical to the original LUN size should be able to accommodate the amount of data that will be copied to it).

3.  Present the LUNS to the ESX hosts of the original clustered environment and new ESX hosts for the cloned VM's.

4.  Login to VC Select the each ESX host that the new LUNS were presented to and navigate to Configuration, Storage Adapters, Select Rescan, and just select Scan for New Storage Devices.

 

Screenshot

 

5.  Identify The SCSI LUN ID assigned to all LUNs when it was created (Example: for fiber channel VHBA1:5:6 would be SCSI ID 6. This ID should be identical on all Hosts).

 

For iSCSI (iSCSI Alias assigned will identify which SCSI target was assigned to the RDM Example: iSCSI Alias brian-rdm-data-n configured on VMHBA32:12:0 Target 12. The target number may NOT be identical on all hosts).

 

Screenshot

 

6.  Document this information. It will be used when adding the new RDMs.

 

Step 3 - Add the RDM Configuration

1.  Within VC select Node 1.

2.  Select, Edit Settings, Add Disk.

 

Screenshot

 

3.  Select, Raw Device Mappings.

 

Screenshot

 

4.  Using the information documented in the previous steps select the target LUNs.

      In this case, targets are 16 and 17.

 

Screenshot

 

5.   Chose to store the metadata files with the virtual Machine.

 

Screenshot