之前RAC環境出現了故障,節點2操作系統崩潰,重裝系統后,CRS添加成功,但是CRS啟動有問題,排查發現節點2 ASM的+DATA diskgroup無法mount,報如下錯誤: ORA-15063: ASM discovered an insufficient number of disks for diskgroup "DATA" 在ASM實例上檢查磁盤組和磁盤的狀態,發現+DATA diskgroup的6塊盤有3塊是MEMBER,有3塊是PROVISIONED。
NOMOUNT狀態,導致添加操作失敗,而嘗試在目前正常工作的節點添加磁盤,結果同樣報錯:
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