问题描述：
Oracle一直用数据泵备份，今天在终端备份时突然报ORA-39006: internal error错误。
数据泵导出日志文件为以下信息：
ORA-39097: Data Pump job encountered unexpected error -31644 ORA-39065: unexpected master process exception in FILE ORA-31644: unable to position to block number 2 in dump file "/orabackup/sgtms_expdp_201504221210.dmp" ORA-19502: write error on file "/orabackup/sgtms_expdp_201504221210.dmp", block number 1 (block size=4096) ORA-29701: unable to connect to Cluster Synchronization Service ORA-29701: unable to connect to Cluster Synchronization Service
Oracle的安装目录使用率100%。删除相关的日志文件即可。
注：在Linux下可根据查看目录大小，来删除相关日志文件。此博文中有相关操作说明（http://blog.csdn.net/johnnysun2015/article/details/45196061）
Linux环境下Oracle数据泵(expdp)备份报ORA-39006: internal error
原文：http://blog.csdn.net/johnnysun2015/article/details/45197729