Address comments

Author: vishesh92

server/src/main/java/com/cloud/storage/StorageManagerImpl.java

@@ -16,6 +16,7 @@
 // under the License.
 package com.cloud.storage;
 
+import static com.cloud.configuration.ConfigurationManagerImpl.SystemVMUseLocalStorage;
 import static com.cloud.utils.NumbersUtil.toHumanReadableSize;
 
 import java.io.UnsupportedEncodingException;
@@ -144,6 +145,7 @@
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.collections.MapUtils;
 import org.apache.commons.lang.time.DateUtils;
+import org.apache.commons.lang3.BooleanUtils;
 import org.apache.commons.lang3.EnumUtils;
 import org.springframework.stereotype.Component;
 
@@ -803,19 +805,18 @@ protected DataStore createLocalStorage(Map<String, Object> poolInfos) throws Con
         return createLocalStorage(host, pInfo);
     }
 
+    private boolean isLocalStorageEnabledForZone(DataCenterVO zone) {
+        return zone.isLocalStorageEnabled() || BooleanUtils.toBoolean(SystemVMUseLocalStorage.valueIn(zone.getId()));
+    }
+
     @DB
     @Override
     public DataStore createLocalStorage(Host host, StoragePoolInfo pInfo) throws ConnectionException {
         DataCenterVO dc = _dcDao.findById(host.getDataCenterId());
         if (dc == null) {
             return null;
         }
-        boolean useLocalStorageForSystemVM = false;
-        Boolean isLocal = ConfigurationManagerImpl.SystemVMUseLocalStorage.valueIn(dc.getId());
-        if (isLocal != null) {
-            useLocalStorageForSystemVM = isLocal.booleanValue();
-        }
-        if (!(dc.isLocalStorageEnabled() || useLocalStorageForSystemVM)) {
+        if (!isLocalStorageEnabledForZone(dc)) {
             return null;
         }
         DataStore store = null;
@@ -1018,7 +1019,7 @@ public PrimaryDataStoreInfo createPool(CreateStoragePoolCmd cmd) throws Resource
             throw new PermissionDeniedException(String.format("Cannot perform this operation, Zone is currently disabled: %s", zone));
         }
         // Check if it's local storage and if it's enabled on the zone
-        if (isFileScheme && !zone.isLocalStorageEnabled()) {
+        if (isFileScheme && !isLocalStorageEnabledForZone(zone)) {
             throw new InvalidParameterValueException("Local storage is not enabled for zone: " + zone);
         }