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在Linux系统下,将另一台aix机器上的存储mount到linux下通过nfs,然后在linux下使用expdp导出数据存储在mount到linux下的磁盘上报错ORA-27054: NFS file system where the file is created or resides is not mounted with correct optionsAdditional information: 6解决访问Alter system set events "10298 trace name context forever,level 32"执行这个命令，不需要重新启动,但在下次数据库重新启动后就失效了，需要再次手工执行。如果想数据库重新启动后，自动执行这个命令，则执行下面的命令：SQL>alter system set event="10298 trace name context forever,level 32" scope=spfile;--------------------------------------------------------------------------------Linux-6-64下安装Oracle 12C笔记 http://www.linuxidc.com/Linux/2013-07/86805.htm在CentOS 6.4下安装Oracle 11gR2（x64） http://www.linuxidc.com/Linux/2014-02/97374.htmOracle 11gR2 在VMWare虚拟机中安装步骤 http://www.linuxidc.com/Linux/2013-09/89579p2.htmDebian 下 安装 Oracle 11g XE R2 http://www.linuxidc.com/Linux/2014-03/98881.htm---------------------------------------------------------------------------------------------------------------另一例-------------------------------今天在虚拟机环境下做实验，在将RAC环境修改为flashback on时，报出了ORA-27054错误，错误代码如下：Errors in file /u01/app/oracle/admin/racdb/udump/racdb2_ora_25551.trc:
ORA-38701: Flashback database log 2 seq 1 thread 2: "/u01/flashback/RACDB/flashback/o1_mf_%u_.flb"
ORA-27054: NFS file system where the file is created or resides is not mounted with correct options从错误描述可以看出，闪回目录是通过nfs文件系统来实现的，而系统挂载nfs时，采用了错误的参数选项，导致oracle报错。上网查资料，通过文档359515.1顺利解决问题。整理部分内容如下：

RAC 

In the table belowBinaries is the shared mount points where the Oracle Home and CRS_HOME is installed.

• Datafiles includes Online Logs, Controlfile and Datafiles

Operating System	Mount options for Binaries	Mount options for Oracle Datafiles	Mount options for CRS Voting Disk and OCR
Sun Solaris *	rw,bg,hard,nointr,rsize=32768, wsize=32768,proto=tcp, noac,vers=3,suid	rw,bg,hard,nointr,rsize=32768, wsize=32768,proto=tcp,noac, forcedirectio, vers=3,suid	rw,bg,hard,nointr,rsize=32768, wsize=32768,proto=tcp,vers=3, noac,forcedirectio
AIX （5L） **	rw,bg,hard,nointr,rsize=32768, wsize=32768,proto=tcp,vers=3, timeo=600	cio,rw,bg,hard,nointr,rsize=32768, wsize=32768,proto=tcp,noac, vers=3,timeo=600	cio,rw,bg,hard,intr,rsize=32768, wsize=32768,tcp,noac, vers=3,timeo=600
HPUX 11.23 **** –	rw,bg,vers=3,proto=tcp,noac, hard,nointr,timeo=600, rsize=32768,wsize=32768,suid	rw,bg,vers=3,proto=tcp,noac, forcedirectio,hard,nointr,timeo=600, rsize=32768,wsize=32768,suid	rw,bg,vers=3,proto=tcp,noac, forcedirectio,hard,nointr,timeo=600 ,rsize=32768,wsize=32768,suid
Linux x86 #	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp, vers=3, timeo=600, actimeo=0	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp,actimeo=0, vers=3,timeo=600	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp,noac,vers=3, timeo=600
Linux x86-64 #	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp,vers=3, timeo=600, actimeo=0	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp,actimeo=0, vers=3,timeo=600	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp,vers=3, timeo=600,noac
Linux – Itanium	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp,vers=3, timeo=600, actimeo=0	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp,actimeo=0, vers=3,timeo=600	rw,bg,hard,nointr,rsize=32768, wsize=32768,tcp,noac,vers=3, timeo=600

* NFS mount option “forcedirectio” is required on Solaris platforms when mounting the OCR/CRS files when using Oracle 10.1.0.4 or 10.2.0.2 or later （Oracle unpublished bug 4466428）
** AIX is only supported with NAS on AIX 5.3 TL04 and higher with Oracle 10.2.0.1 and later （NetApp）
*** NAS devices are only supported with HPUX 11.23 or higher ONLY# These mount options are for Linux kernels 2.6 and above for older kernels please check Note 279393.1Due to Unpublished bug 5856342, it is necessary to use the following init.ora parameter when using NAS
with all versions of RAC on Linux （x86 & X86-64 platforms） until 10.2.0.4. This bug is fixed and included in 10.2.0.4 patchset.
filesystemio_options = DIRECTIO

Single Instance

Operating System	Mount options for Binaries	Mount options for Oracle Datafiles
Sun Solaris * （8, 9, 10）	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, proto=tcp,suid	rw,bg,hard,rsize=32768, wsize=32768,vers=3,[forcedirectio or llock], nointr,proto=tcp,suid
AIX （5L） **	rw,bg,hard,rsize=32768, wsize=32768,vers=3,intr, timeo=600,proto=tcp	rw,bg,hard,rsize=32768, wsize=32768,vers=3,cio,intr, timeo=600,proto=tcp
HPUX 11.23 ****	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,proto=tcp,suid	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,proto=tcp,suid
Linux x86 #	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp,actime=0*
Linux x86-64 #	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp,actime=0*
Linux – Itanium	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp	rw,bg,hard,rsize=32768, wsize=32768,vers=3,nointr, timeo=600,tcp

* actime=0 or noac can be used参照上文，修改mount参数如下：[root@node2 bdump]# cat /etc/rc.d/rc.local
#！/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don"t
# want to do the full Sys V style init stuff.touch /var/lock/subsys/localservice iscsi restart
#start_udevmodprobe hangcheck-timer
mount -t nfs -o rw,bg,noac,hard,nointr,rsize=32768,wsize=32768,nolock,proto=tcp,actimeo=0,vers=3,timeo=600 192.168.2.31:/u01/flashback/ /u01/flashback/问题成功解决！另外，在网上查到资料，还可以使用如下方式解决1：设置事件10298 level 32alter system set event="10298 trace name context forever,level 32" scope=spfile;重新启动数据库后生效.2：打补丁:5146667我没有试验，有兴趣的朋友可以试试，更多Oracle相关信息见Oracle 专题页面 http://www.linuxidc.com/topicnews.aspx？tid=12本文永久更新链接地址