通过dbv命令查看oracle数据文件是否有坏块，

[oracle@jw PROD]$ **dbv file=users01.dbf**
DBVERIFY: Release 11.2.0.4.0 - Production on Mon Jan 22 22:21:14 2018
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
DBVERIFY - Verification starting : FILE = /u01/app/oracle/oradata/PROD/users01.dbf
DBVERIFY - Verification complete
Total Pages Examined         : 3200
Total Pages Processed (Data) : 1777
Total Pages Failing   (Data) : 0  ——0表示正常
Total Pages Processed (Index): 584
Total Pages Failing   (Index): 0 ——0表示正常
Total Pages Processed (Other): 454
Total Pages Processed (Seg)  : 0
Total Pages Failing   (Seg)  : 0  ——0表示正常
Total Pages Empty            : 385
Total Pages Marked Corrupt   : 0  ——0表示正常
Total Pages Influx           : 0
Total Pages Encrypted        : 0
Highest block SCN            : 1110642 (0.1110642)