上班收到告警日志，提示数据库服务器根（/ ）目录利用率超过 85% 低于 95% ，于是就登录到数据库服务器上查看了一下具体的情况。
[root@jzfpysdb1 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 158G 130G 21G 87% /
tmpfs 63G 301M 63G 1% /dev/shm
/dev/sda1 120M 33M 82M 29% /boot
如上，根（/）目录利用率87% ，通过 du -sh * 的方式跟踪占用空间的目录文件，
[root@jzfpysdb1 jzfpysdb1]# du -sh *
1.2M 05-JUN-2016-09:51:08.txt
1.2M 12-NOV-2016-00:37:23.txt
136K 12-NOV-2016-00:41:49.txt
4.0K 12-NOV-2016-00:43:07.txt
1.2M 12-NOV-2016-01:00:50.txt
1.3M 12-NOV-2016-08:07:49.txt
1.3M 12-NOV-2016-09:17:47.txt
868K 26-NOV-2015-21:56:26.txt
868K 26-NOV-2015-21:56:27.txt
1004K 26-NOV-2015-21:57:08.txt
1.2M 26-SEP-2016-15:26:08.txt
1.3G crfalert.bdb
91G crfclust.bdb
8.0K crfconn.bdb
1.4G crfcpu.bdb
1.3G crfhosts.bdb
1.7G crfloclts.bdb
1.3G crfts.bdb
12K __db.001
392K __db.002
2.6M __db.003
2.1M __db.004
904K __db.005
12K __db.006
520K jzfpysdb1.ldb
16M log.0000010978
14M log.0000010979
8.0K repdhosts.bdb
如上跟踪到crfclust.bdb文件居然有91G 的大小，该文件是有集群服务ora.crf 生成的，解决过程如下：
1 、查看 ora.crf 服务状态
[grid@jzfpysdb1 ~]$ crsctl stat res ora.crf -init -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.crf
1 ONLINE ONLINE jzfpysdb1
2 、停止 ora.crf 服务
[grid@jzfpysdb1 ~]$ crsctl stop res ora.crf -init
CRS-2673: Attempting to stop 'ora.crf' on 'jzfpysdb1'
CRS-2677: Stop of 'ora.crf' on 'jzfpysdb1' succeeded
3 、清理 .bad 类型的文件
[root@jzfpysdb1 jzfpysdb1]# rm ./*.bdb
rm: remove regular file `./crfalert.bdb'? y
rm: remove regular file `./crfclust.bdb'? y
rm: remove regular file `./crfconn.bdb'? y
rm: remove regular file `./crfcpu.bdb'? y
rm: remove regular file `./crfhosts.bdb'? y
rm: remove regular file `./crfloclts.bdb'? y
rm: remove regular file `./crfts.bdb'? y
rm: remove regular file `./repdhosts.bdb'? y
4 、确定空间是否已经释放
[root@jzfpysdb1 jzfpysdb1]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 158G 23G 128G 15% /
tmpfs 63G 301M 63G 1% /dev/shm
/dev/sda1 120M 33M 82M 29% /boot
[root@jzfpysdb1 jzfpysdb1]#
5 、启动 ora.crf 服务并检查其状态
[grid@jzfpysdb1 ~]$ crsctl start res ora.crf -init
CRS-2672: Attempting to start 'ora.crf' on 'jzfpysdb1'
CRS-2676: Start of 'ora.crf' on 'jzfpysdb1' succeeded
[grid@jzfpysdb1 ~]$ crsctl stat res ora.crf -init -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.crf
1 ONLINE ONLINE jzfpysdb1
