平台:SunOS 5.8 Generic_108528-23 sun4u sparc SUNW,Ultra-Enterprise
数据库:8.1.5.0.0
症状:呼应缓慢，使用请求曾经无法前往
登陆数据库,发现redo日志组除current外都处于active形状
oracle:/oracle/oracle8>sqlplus "/ as sysdba"

SQL*Plus: Release 8.1.5.0.0 - Production on Thu Jun 23 18:56:06 2005

(c) Copyright 1999 Oracle Corporation.  All rights reserved.

Connected to:
Oracle8i Enterprise Edition Release 8.1.5.0.0 - Production
With the Partitioning and Java options
PL/SQL Release 8.1.5.0.0 - Production
SQL> select * from v$log;

    GROUP#    THREAD#  SEQUENCE#      BYTES    MEMBERS ARC STATUS           FIRST_CHANGE# FIRST_TIM
---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ---------
         1          1     520403   31457280          1 NO  ACTIVE              1.3861E+10 23-JUN-05
         2          1     520404   31457280          1 NO  ACTIVE              1.3861E+10 23-JUN-05
         3          1     520405   31457280          1 NO  ACTIVE              1.3861E+10 23-JUN-05
         4          1     520406   31457280          1 NO  CURRENT             1.3861E+10 23-JUN-05
         5          1     520398   31457280          1 NO  ACTIVE              1.3860E+10 23-JUN-05
         6          1     520399   31457280          1 NO  ACTIVE              1.3860E+10 23-JUN-05
         7          1     520400  104857600          1 NO  ACTIVE              1.3860E+10 23-JUN-05
         8          1     520401  104857600          1 NO  ACTIVE              1.3860E+10 23-JUN-05
         9          1     520402  104857600          1 NO  ACTIVE              1.3861E+10 23-JUN-05

9 rows selected.

SQL> /

    GROUP#    THREAD#  SEQUEN