Oralce 12c ASM 如何清理存档日志。由于存档磁盘组已满，Oracle 实例未启动，这是我的测试数据库，我不想扩展磁盘组，因此我想删除所有存档日志。
SQL> startup
ORACLE instance started.
Total System Global Area 738197504 bytes
Fixed Size 2928776 bytes
Variable Size 314576760 bytes
Database Buffers 415236096 bytes
Redo Buffers 5455872 bytes
Database mounted.
ORA-03113: end-of-file on communication channel
Process ID: 31849
Session ID: 124 Serial number: 41214
警报日志
> NOTE: Assigning number (1,0) to disk (/dev/DG-DISK3) SUCCESS: mounted
> group 1 (ARCH) NOTE: grp 1 disk 0: ARCH_0000 path:/dev/DG-DISK3 Wed
> Aug 24 03:50:11 2016 Unable to create archive …