客户对虚拟化环境进行物理机加内存,结果发现数据库服务器无法正常启动,报Buffer I/O error on dev错误
通过对底层虚拟化磁盘进行分析,确定vg为centos,数据所在的磁盘组为root
进一步恢复其中数据
然后顺利打开数据库,数据0丢失
[oracle@xifenfei u01]$ sqlplus / assysdba
SQL*Plus: Release 19.0.0.0.0 - Production onMon Mar 13 23:27:42 2023 Version 19.13.0.0.0
Copyright (c) 1982, 2021, Oracle. Allrights reserved.
Connected toan idle instance.
SQL> startup ORACLE instance started.
Total System GlobalArea 1.0100E+10 bytes Fixed Size 13625520 bytes Variable Size 6241124352 bytes DatabaseBuffers 3825205248 bytes Redo Buffers 19927040 bytes Databasemounted. Databaseopened. SQL> selectstatus,count(1) fromv$datafile groupbystatus;
STATUS COUNT(1) ------- ---------- SYSTEM 1 ONLINE 21 |