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datafile on nfs mount

原创 Linux操作系统 作者:tengrid 时间:2009-05-18 18:53:48 0 删除 编辑
Q:
Per note 359515.1 nfs mounts are supported for datafiles with oracle 10. Does anyone know if the same applies for 9.2 databases? I urgently need to create a clone of a 9.2 environment, but suprise surprise don't have disk space available directly attached to the server. And yes I have opened a tar, but figure someone where must have done this, been bitten etc etc.


A:
rw,bg,vers=3,proto=tcp,hard,intr,rsize=32768,wsize=32768,forcedirectio

refer: 
http://www.netapp.com/library/tr/3369.pdf

FYI:

forcedirectio is an NFS mount options relevant in a Solaris environment. It is not used for Linux clients.

I also see that referenced PDF has no mention of the filesystemio_options parameter either. Ugh.

For a Linux client, use:

rw,bg,hard,nointr,tcp,vers=3,timeo=300,rsize=32768,wsize=32768,actimeo=0

 

Now, 9i does require a patch with the Linux port so that Oracle will do an open(,O_DIRECT,) of NFS files subsequent to setting

filesystemio_options=DirectIO

I’ll have to dig for that patch number.
The patch for Linux 9i that gets open with O_DIRECT is 2448994

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