在oracle环境中使用NFS，在mount的时候需要修改一些选项，否则可能导致各种问题，比如ORA-27086和ORA-27054错
误。不管你是将Oracle安装在NFS设备也好，是将datafile放置在NFS设备也好，是备份到NFS设备也好，如果出现相关的错误，则需要检查
下是否mount的选项有问题。一般只要用hard方式来mount的，都不会有太多问题。
以下内容引自Metalink(Doc
ID:359515.1)，适用于10.1.0.2以上版本，供参考：
RAC
In the table below
Binaries 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10.1.0.4 or 10.2.0.2 or later (Oracle unpublished bug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 279393.1
Due to Unpublished bug 5856342, it is necessary to use the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
)
