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                                    

[grid@jzfpysdb1 ~]$