message: alert error message
diff: @@ -7,7 +7,6 @@ import {
  DiskOffering,
  DiskOfferingService,
  JobsNotificationService,
  - NotificationService,
  Volume,
  VolumeAttachmentData,
  VolumeService
  @@ -41,7 +40,6 @@ export class SpareDrivePageComponent implements OnInit {
  private dialogService: MdlDialogService,
  private diskOfferingService: DiskOfferingService,
  private jobsNotificationService: JobsNotificationService,
  - private notificationService: NotificationService,
  private listService: ListService,
  private translateService: TranslateService,
  private volumeService: VolumeService
  @@ -91,7 +89,7 @@ export class SpareDrivePageComponent implements OnInit {
  this.jobsNotificationService.finish({ message: 'VOLUME_DELETE_DONE' });
  },
  error => {
  - this.notificationService.error(error);
  + this.dialogService.alert(error);
  this.jobsNotificationService.fail({ message: 'VOLUME_DELETE_FAILED' });
  }
  );
  @@ -129,7 +127,7 @@ export class SpareDrivePageComponent implements OnInit {
  });
  },
  error => {
  - this.notificationService.error(error.errortext);
  + this.dialogService.alert(error.errortext);
  this.jobsNotificationService.fail({
  id: notificationId,
  message: 'VOLUME_CREATE_FAILED',
  @@ -150,7 +148,7 @@ export class SpareDrivePageComponent implements OnInit {
  });
  },
  error => {
  - this.notificationService.error(error.errortext);
  + this.dialogService.alert(error.errortext);
  this.jobsNotificationService.fail({
  id: notificationId,
  message: 'VOLUME_ATTACH_FAILED',
  