今天下午客户报数据库无法连接了，我也立刻登录查看

 因为显示orcl1归档满了，我就登录查看磁盘组的空间，发现空间空余很多

 就sqlpus登录了，发现u01使用率满了

[oracle@db1 ~]$  sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Sat May 6 11:43:00 2023

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

ERROR:
ORA-09817: Write to audit file failed.
Linux-x86_64 Error: 28: No space left on device
Additional information: 12
ORA-01075: you are currently logged on

Enter user-name:
ERROR:
ORA-01017: invalid username/password; logon denied

Enter user-name:

如上报错，发现文件系统的使用率高了，退回到系统中查看

[root@db1 ~]#  df -h
Filesystem                        Size  Used Avail Use% Mounted on
/dev/mapper/LVMgroup_orcl1-root   68G  1.4G   63G   3% /
tmpfs                              32G  293M   32G   1% /dev/shm
/dev/sda1                         194M   36M  149M  20% /boot
/dev/mapper/LVMgroup_orcl1-u01   197G  187G  3.9M 100% /u01
tmpfs                              60M     0   60M   0% /var/log/rtlog

u01的使用率接近100%了，删除部分过期的log日志，数据库恢复正常