救命oracle不能备份

ihhvqu

求助\r\n进入Oracle用户后,输入  exp出现下面的提示:\r\nSun Microsystems Inc.   SunOS 5.9       Generic May 2002\r\nstty: : Inappropriate ioctl for device\r\n\r\nExport: Release 9.2.0.1.0 - Production on Tue Jun 12 16:35:23 2007\r\n\r\nCopyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.\r\n\r\n\r\nEXP-00056: ORACLE error 1034 encountered\r\nORA-01034: ORACLE not available\r\nORA-27101: shared memory realm does not exist\r\nSVR4 Error: 2: No such file or directory\r\nEXP-00005: all allowable logon attempts failed\r\nEXP-00000: Export terminated unsuccessfully\r\n\r\n不知道怎么解决?\r\nOracle运行正常,就是不能备份,其他一切正常\r\n出问题前,Oracle备份指定的目录满了,当Oracle不能备份后,就删除了一些文件,就又有了空间,再次备份,发现还是不能备..不知道咋个解决..   望高手指点...  在线等....!!!!!