[VMware] Update data disk controller same as the root disk controller type when it is not set in the VM detail (#9433)

Author: sureshanaparti

server/src/main/java/com/cloud/vm/UserVmManagerImpl.java

@@ -4650,17 +4650,24 @@ private void updateVMDiskController(UserVmVO vm, Map<String, String> customParam
                 vm.setDetail(VmDetailConstants.DATA_DISK_CONTROLLER, dataDiskControllerSetting);
             }
 
-            String controllerSetting = StringUtils.defaultIfEmpty(_configDao.getValue(Config.VmwareRootDiskControllerType.key()),
-                    Config.VmwareRootDiskControllerType.getDefaultValue());
-
             // Don't override if VM already has root/data disk controller detail
             if (vm.getDetail(VmDetailConstants.ROOT_DISK_CONTROLLER) == null) {
-                vm.setDetail(VmDetailConstants.ROOT_DISK_CONTROLLER, controllerSetting);
+                String vmwareRootDiskControllerTypeFromSetting = StringUtils.defaultIfEmpty(_configDao.getValue(Config.VmwareRootDiskControllerType.key()),
+                        Config.VmwareRootDiskControllerType.getDefaultValue());
+                vm.setDetail(VmDetailConstants.ROOT_DISK_CONTROLLER, vmwareRootDiskControllerTypeFromSetting);
             }
+
             if (vm.getDetail(VmDetailConstants.DATA_DISK_CONTROLLER) == null) {
-                if (controllerSetting.equalsIgnoreCase("scsi")) {
-                    vm.setDetail(VmDetailConstants.DATA_DISK_CONTROLLER, "scsi");
+                String finalRootDiskController = vm.getDetail(VmDetailConstants.ROOT_DISK_CONTROLLER);
+                // Set the data disk controller detail same as the final scsi root disk controller if VM doesn't have data disk controller detail
+                // This is to ensure the disk controller is available for the data disks, as all the SCSI controllers are created with same controller type
+                String scsiControllerPattern = "(?i)\\b(scsi|lsilogic|lsilogicsas|lsisas1068|buslogic|pvscsi)\\b";
+                if (finalRootDiskController.matches(scsiControllerPattern)) {
+                    s_logger.info(String.format("Data disk controller was not defined, but root disk is using SCSI controller [%s]." +
+                            "To ensure disk controllers are available for the data disks, the data disk controller is updated to match the root disk controller.", finalRootDiskController));
+                    vm.setDetail(VmDetailConstants.DATA_DISK_CONTROLLER, finalRootDiskController);
                 } else {
+                    s_logger.info("Data disk controller was not defined; defaulting to 'osdefault'.");
                     vm.setDetail(VmDetailConstants.DATA_DISK_CONTROLLER, "osdefault");
                 }
             }