之前RAC环境出现了故障,节点2操作系统崩溃,重装系统后,CRS添加成功,但是CRS启动有问题,排查发现节点2 ASM的+DATA diskgroup无法mount,报如下错误: ORA-15063: ASM discovered an insufficient number of disks for diskgroup "DATA" 在ASM实例上检查磁盘组和磁盘的状态,发现+DATA diskgroup的6块盘有3块是MEMBER,有3块是PROVISIONED。
NOMOUNT状态,导致添加操作失败,而尝试在目前正常工作的节点添加磁盘,结果同样报错:
SQL> alter diskgroup DATA add disk '/dev/oracleasm/disks/OADB_DATA_300G_6';
alter diskgroup DATA add disk '/dev/oracleasm/disks/OADB_DATA_300G_6'
*
ERROR at line 1:
ORA-15032:not all alterations performed
ORA-15029: disk '/dev/oracleasm/disks/OADB_DATA_300G_6'is already mounted by this instance