誤刪除LV後察看錶空間利用率失敗

 現象：誤刪除LV後察看錶空間利用率失敗，察看ALERT日誌，發現以下錯誤：

Errors in file /home/oracle/admin/zhjport/bdump/zhjport1_dbw0_2871436.trc:

ORA-01186: file 81 failed verification tests

ORA-01157: cannot identify/lock data file 81 - see DBWR trace file

ORA-01110: data file 81: '/dev/rPAT_BAS_1'

 

一、  嘗試重建LV看是否能恢復

 

mklv -T O -y PAT_BAS_1 oradatavg 1

mklv -T O -y PAT_BAS_2 oradatavg 1

chown oracle:dba PAT_BAS_1

chown oracle:dba PAT_BAS_2

chown oracle:dba rPAT_BAS_1

chown oracle:dba rPAT_BAS_2

發現故障依舊

 

2、查rPAT_BAS_1、rPAT_BAS_2數據文件屬於哪一個表空間

 

select status,TABLESPACE_NAME,CHECKPOINT_CHANGE#,name from v$datafile_header;

STATUS	TABLESPACE_NAME	CHECKPOINT_CHANGE#	NAME
ONLINE	PAT_1	3177311020	/dev/rPAT_1
ONLINE	PAT_10	3177311020	/dev/rPAT_10
ONLINE		0	/dev/rPAT_BAS_1
ONLINE		0	/dev/rPAT_BAS_2

 

3、執行rPAT_BAS_1、rPAT_BAS_2數據文件下線：

 

ALTER DATABASE DATAFILE '/dev/rPAT_BAS_1' OFFLINE DROP;

ALTER DATABASE DATAFILE '/dev/rPAT_BAS_2' OFFLINE DROP;

STATUS	TABLESPACE_NAME	CHECKPOINT_CHANGE#	NAME
ONLINE	PAT_1	3177311020	/dev/rPAT_1
ONLINE	PAT_10	3177311020	/dev/rPAT_10
OFFLINE		0	/dev/rPAT_BAS_1
OFFLINE		0	/dev/rPAT_BAS_2

 

4、此時已經能夠查看錶空間利用率

 

--表空間查詢

Select a.Tablespace_Name, a.Total || 'M' Total_Space, (a.Total - b.Free) || 'M' Used_Space, To_Char((a.Total - b.Free) / a.Total * 100, '99.99') || '%' Pct_Free

From

(Select Tablespace_Name, Sum(Bytes) / 1024 / 1024 Total From Dba_Data_Files Group By tablespace_Name) a,

(Select Tablespace_Name, Sum(Bytes) / 1024 / 1024 Free From Dba_Free_Space Group By Tablespace_Name) b where a.Tablespace_Name = b.Tablespace_Name