high disk usage in $GI

http://www.peasland.net/2014/11/14/high-space-usage-from-crfclust-bdb/

[oracle@host01 host01]$ /u01/app/crs11.2.0.4/bin/crsctl stop resource ora.crf -init
CRS-2673: Attempting to stop ‘ora.crf’ on ‘host01′
CRS-2677: Stop of ‘ora.crf’ on ‘host01′ succeeded
[oracle@host01 host01]$ su
Password:
[root@host01 host01]# rm -rf *
[oracle@host01 host01]$ /u01/app/crs11.2.0.4/bin/crsctl start resource ora.crf -init
CRS-2672: Attempting to start ‘ora.crf’ on ‘host01′
CRS-2676: Start of ‘ora.crf’ on ‘host01′ succeeded