Gopi Desaboyina Solaris Blogs

Just another WordPress.com weblog

NFS Mount options for Oracle Datafiles and Data Pumps/Exports

Ever wondered when you try to write in NFS mount point, it throws error saying. it’s not mounted with correct options. You need to mount the nfs using below options.

#mount -F nfs -o bg,hard,rw,rsize=32768,wsize=32768,noac system1:/export/home/oracle /export/home

bg | fg
If the first attempt fails, retry in the background, or, in the foreground. The default is fg.

rsize=n
Set the read buffer size to n bytes. The default value is 32768 when using Version 3 of the NFS protocol. The default can be negotiated down if the server prefers a smaller transfer size. When using Version 2, the default value is 8192.

wsize=n
Set the write buffer size to n bytes. The default value is 32768 when using Version 3 of the NFS protocol. The default can be negotiated down if the server prefers a smaller transfer size. When using Version 2, the default value is 8192.

noac
Suppress data and attribute caching. The data caching that is suppressed is the write-behind. The local page cache is still maintained, but data copied into it is immediately written to the server.

proto=tcp|udp
is a value of network_id field from entry in the /etc/netconfig file. By default, the transport protocol used for the NFS mount is the first available connection oriented transport supported on both the client and the server. If no connection oriented transport is found, then the first available connectionless transport is used. This default behavior can be overridden with the proto=  option.

Advertisements

May 27, 2009 - Posted by | Solaris |

No comments yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: