I would also add history table (this is what I did/added):

CREATE TABLE [dbo].[ClusterNodesHystory]
  (
     [ID]          [int]            IDENTITY(1,1)     NOT NULL CONSTRAINT [PK_ClusterNodesHystory_ID] PRIMARY KEY CLUSTERED ,
     [CurrentNode] [varchar](100)                 NULL,
     [PreviousNode] [varchar](100)                 NULL,
     [TimeStamp]      [datetime]                     NOT NULL     CONSTRAINT [DF_ClusterNodesHystory_TimeStamp] DEFAULT (GETDATE()),

  )
GO

and then as last part of the script:
        INSERT INTO [dbo].[ClusterNodesHystory]([CurrentNode],[PreviousNode])
         SELECT @curnodename,@prevnodename;

so that way we have full history records