问SQL Server2008中的dm_os_volume_stats相当于SQL Server2008中的R2？

EN

DECLARE @recid         INT
       ,@workstring    VARCHAR(8000)
       ,@parsearrayxml XML
       ,@vexec_str     VARCHAR(8000)

-- Create table variable to hold drive size info
DECLARE @drives TABLE (
   [RecID]             TINYINT IDENTITY(1,1) PRIMARY KEY -- Record ID 
  ,[Drive]             VARCHAR(10)                       -- Drive letter
  ,[Size]              BIGINT NULL                       -- Drive size
   )

-- Create table variable for xp_cmdshell output
DECLARE @xp_cmdshell_output TABLE (
   [output]            VARCHAR(8000) NULL                -- Raw text returned from xp_cmdshell execution
   )

INSERT INTO @xp_cmdshell_output ([output])
   EXEC [master].[dbo].[xp_cmdshell] N'FSUTIL FSINFO DRIVES'
IF (SELECT COUNT(1) 
       FROM @xp_cmdshell_output 
       WHERE [output] = 'The FSUTIL utility requires that you have administrative privileges.') > 0
  RAISERROR ('SQL Server Service account not an admin on this computer.', 11, 1);
ELSE
BEGIN
   SELECT @workstring = [output] 
      FROM @xp_cmdshell_output 
      WHERE [output] LIKE 'Drives:%'
   DELETE FROM @xp_cmdshell_output
   SELECT @workstring = REPLACE(@workstring, 'Drives', '')
   SELECT @workstring = REPLACE(@workstring, ':', '')
   SELECT @workstring = REPLACE(@workstring, ' ', '')
   IF CHARINDEX(CHAR(0), @workstring) != 0
      SELECT @workstring = REPLACE(@workstring, CHAR(0), ',')
END
SELECT @parsearrayxml = CAST(
                             ('<X>'
                              + REPLACE(@workstring
                                       ,'\'
                                       ,'</X><X>')
                              + '</X>')
                              AS XML)
INSERT INTO @drives ([Drive])
   SELECT LTRIM(N.value('.', 'VARCHAR(4000)'))
      FROM @parsearrayxml.nodes('X') AS T(N)
      WHERE ASCII(LTRIM(N.value('.', 'VARCHAR(4000)'))) != 0

      -- Get size for each drive
      SELECT @recid = 1
      WHILE @recid <= (SELECT MAX([RecID]) FROM @drives)
      BEGIN
         SELECT @workstring = ''
               ,@vexec_str = 'EXEC [master].[dbo].[xp_cmdshell] ' 
                           + QUOTENAME('FSUTIL VOLUME DISKFREE ' 
                                + [Drive] 
                                + ':'
                             ,CHAR(39))
            FROM @drives
            WHERE [RecID] = @recid
         INSERT INTO @xp_cmdshell_output ([output])
            EXEC (@vexec_str)
         SELECT @workstring = [output] 
            FROM @xp_cmdshell_output 
            WHERE [output] LIKE '%Total # of bytes%'
         IF @workstring IS NOT NULL AND LEN(@workstring) > 0
         BEGIN
            SELECT @workstring = LTRIM(
                                       SUBSTRING(@workstring
                                                ,CHARINDEX(':'
                                                          ,@workstring
                                                          ) + 1
                                                ,LEN(@workstring)
                                                )
                                       )
            SELECT @workstring = LEFT(@workstring, LEN(@workstring)-1)
            UPDATE @drives 
               SET [Size] = (CONVERT(BIGINT, @workstring)/1024)/1024 
               WHERE [RecID] = @recid
         END
         ELSE 
         DELETE
            FROM @drives 
            WHERE [RecID] = @recid
         DELETE FROM @xp_cmdshell_output
         SELECT @recid = @recid + 1
      END
SELECT * FROM @drives