在一次RAC例行巡检时，查询表空间的使用情况，节点1竟然抛出来，dbwr 进程无法lock ‘D:oraclefcdataLIXORA.DBF’ 这个数据文件；感觉不对啊，非常不祥的感觉；
光看名字就可以猜到，数据文件建到rac 节点2本地；
看下文件状态吧：
SQL> select file_name,tablespace_name from dba_data_files;
FILE_NAME
--------------------------------------------------------------------------------
+DATA/lixora/datafile/sys_yyxt.271.785089053
+DATA/lixora/datafile/sys_yyxt.270.785089231
+DATA/lixora/datafile/sys_yyxt.269.785089375
+DATA/lixora/datafile/users.276.784277257
+DATA/lixora/datafile/sysaux.274.784277257
+DATA/lixora/datafile/undotbs1.275.784277257
+DATA/lixora/datafile/system.273.784277257
+DATA/lixora/datafile/undotbs2.284.784277321
+DATA/lixora/datafile/sys_yyxt.268.785089665
+DATA/lixora/datafile/sys_yyxt.265.785089753
+DATA/lixora/datafile/sys_yyxt.264.785089843
FILE_NAME
--------------------------------------------------------------------------------
+DATA/lixora/datafile/sys_yyxt.400.785089933
+DATA/lixora/datafile/sys_yyxt01
+DATA/lixora/datafile/sys_yyxt02.dbf
+DATA/lixora/datafile/sys_jkxt.401.785090209
+DATA/lixora/datafile/sys_yyxt03.dbf
+DATA/lixora/datafile/sys_yyxt201401
+DATA/lixora/datafile/sys_yyxt201402
+DATA/lixora/datafile/sys_yyxt201403
+DATA/lixora/datafile/sys_yyxt201404
+DATA/lixora/datafile/sys_yyxt201405
+DATA/lixora/datafile/sys_yyxt201407
FILE_NAME
--------------------------------------------------------------------------------
/u01/app/oracle/product/10.2.0/db_1/dbs/D:oraclefcdataLIXORA.DBF --------------吓死宝宝了！
/u01/app/oracle/product/10.2.0/db_1/dbs/D:oraclefcdataLIXORADATA.DBF ------------------吓死宝宝了！
24 rows selected.
果不其然，文件建到了rac 节点本地，而且数据文件名，要多奇葩，有多奇葩，这哥们真是纵观古今，然后大手一挥，写下‘hello word ’ 然后会心一笑。。。。。
我们的开发人员也是够惨的啊，单机的oracle也搞不清楚，更不用涉及rac了。。。。。。。
再次确认下，dbfile 确实建在了/u01/app/oracle/product/10.2.0/db_1/dbs/ 目录下
SQL> !ls /u01/app/oracle/product/10.2.0/db_1/dbs/
ab_+ASM2.dat
D:oraclefcdataLIXORAtemp.DBF hc_+ASM2.dat initdw.ora orapw+ASM2
CdbsMutex
D:oraclefcdataLIXORATEMP.DBF hc_orcl2.dat init.ora orapworcl2
D:oraclefcdataLIXORADATA.DBF
D:\oracle\oradata\orcl\hhygbp_temp_dbf initlixora2.ora initorcl2.ora snapcf_lixora2.f
D:oraclefcdataLIXORA.DBF hc_lixora2.dat init+ASM2.ora orapwlixora2 snapcf_orcl2.f
仔细看下内容好像哪里有点问题吧？
貌似是temp 文件啊
SQL> select name from v$tempfile;
NAME
--------------------------------------------------------------------------------
+DATA/lixora/tempfile/temp.283.784277305
/u01/app/oracle/product/10.2.0/db_1/dbs/D:oraclefcdataLIXORATEMP.DBF -------
----到底是什么时候出现这个问题的呢？
SQL> select CREATION_TIME,NAME from v$datafile where name='/u01/app/oracle/product/10.2.0/db_1/dbs/D:oraclefcdataLIXORA.DBF';
CREATION_TIM
------------
NAME
--------------------------------------------------------------------------------
18-MAY-15
/u01/app/oracle/product/10.2.0/db_1/dbs/D:oraclefcdataLIXORA.DBF
SQL> select CREATION_TIME,NAME from v$datafile where name='/u01/app/oracle/product/10.2.0/db_1/dbs/D:oraclefcdataLIXORADATA.DBF';
CREATION_TIM
------------
NAME
--------------------------------------------------------------------------------
18-MAY-15
/u01/app/oracle/product/10.2.0/db_1/dbs/D:ora