Oracle RAC 未从SPfile启动故障处理
发现RAC的其中一个实例SGA不正常，查看spfilesqlgt;show parameter spfile NAME TYPE VALUE
发现RAC的其中一个实例SGA不正常，查看spfile
sql>show parameter spfile
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
spfile string
结果值没有spfile，没有从spfile启动，查看dbs下的pfile文件发现该实例的Pfile文件的内容被改了
实例2上
sql>show parameter spfile
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
spfile string /dev/spfilegis.ora
数据库的参数文件有spfile 和pfile。 RAC 的参数文件比较特殊。 因为默认情况下，，RAC的spfile 是放在共享设备上（RAW设备或者ASM磁盘组）。而在各节点的pfile文件里只记录了这个spfile的位置
处理办法
1.把dbs下的pfile文件备份
cp initgis1.ora initgis.ora.bak
2. 停实例gis1
sqlplus>shutdown immediate
3.vi 编辑initgis1.ora
spfile=/dev/spfilegis.ora
保存退出
4.启动实例1
sqlplus>startup
5.查看SGA正常
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