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AIX mount NFS

vi /etc/filesystems
/backup:
        dev = /backup
        vfs = nfs
        nodename = 192.168.1.126
        mount = true
        options = bg,rw,noac,nointr,hard,rsize=32768,wsize=32768,timeo=600,vers=3,proto=tcp,sec=sys
        account = false

umount -f /backup		
mount /backup

mount -o bg,rw,noac,nointr,hard,rsize=32768,wsize=32768,timeo=600,vers=3,proto=tcp,sec=sys 192.168.1.126:/backup /backup

•使用默认选项(即ac,attribute caching)时,NFS客户端写性能约为300MBps;
•只要选项包含noac的话,搭建的NFS客户端写文件性能不超过30MBps;仅为正常情况的十分之一左右;

−#mount -o rw,bg,hard,nointr,rsize=32768,wsize=32768,proto=tcp,vers=3,timeo=600,noac nfstest:/projects /mnt
•使用客户采用的其他选项,仅去掉noac,NFS客户端写性能也能达到~300MBps;
−mount -o rw,bg,hard,nointr,rsize=32768,wsize=32768,proto=tcp,vers=3,timeo=600 nfstest:/projects /mnt

Mount Options for Oracle files for RAC databases and Clusterware when used with NFS on NAS devices (Doc ID 359515.1)

Operating SystemMount options for    Binaries ##Mount options for Oracle Datafiles

The NFS storage for asm diskgroup (not quorum disks) that does not have
the OCR and voting disk must also use this mount options
Mount options for CRS Voting Disk and OCR (12.1 and lower)
In 12.2, both OCR and voting disks must reside in ASM.
Refer to Document 2201844.1
The NFS storage for asm diskgroup (not quorum disks) that has the OCR
and voting disk must also use this mount options
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
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,nointr,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
rw,bg,vers=3,proto=tcp,noac,
forcedirectio,hard,nointr,timeo=600
,rsize=32768,wsize=32768
Windows
(Use dNFS if needed.
Refer to
Document 1468114.1
Not SupportedNot SupportedNot Supported
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,actimeo=0,
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,noac,vers=3,
timeo=600,actimeo=0
Linux – Itaniumrw,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,actimeo=0

* 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
*** 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

## The stated mount options for binaries are applicable only if the ORACLE HOME is shared.

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