can we mount two different file systems on one directory?

[praveen..]

Hi,
#bdf
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/dev/vg02/praveen_oracle 897449984 706100592 191349392 79% /praveen/oracle
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I need to mount a nfs file system on /praveen/oracle.
can i do it without umount it from /dev/vg02/praveen_oracle
if yes, how can i do it?
Thanks
praveen

[melvyn burnard]

Yes, but any data currently visible in /praveen/oracle will not be visible or useable until you unmount the NFS file system.
Just use normal NFS mount

[praveen..]

which command i have to use for nfs mount:
#mount ip_address:/directory /praveen/oracle

or something else?

[Geoff Wild]

If you mount a nfs mount on /praveen/oracle, then you won't be able to "see" what is currently on /praveen/oracle...until after you umount the NFS.

Rgds...Geoff

[Chan 007]

You can,

But you bdf output will not be proper.

Also the prev mount directory will go invisible until you unmount the new one..

Chan

[Sundar_7]

Praveen,

You cannot mount the NFS filesystem without unmounting the local file system. I disagree with the above post.

Sundar.

[Jason Ray]

You could also go into SAM and use the Add Remote File System options.

[praveen..]

this is the error:
nfs mount: mount_nfs: mount: /apps/LoyAn/share: Device busy

[Sundar_7]

As I said, you cannot mount the NFS filesytsem on top of the exisiting local mount.

If it was just a directory , then it will allow you to mount the NFS filesystem on that directory. In that case you will not be able to see the contents of the directory untill you unmount the NFS filesystem.

[Geoff Wild]

Doh! - Sundar is right - because the underlying filesystem will be busy - even if it isn't in use...

What you need to do is either umount /praveen/oracle or mkdir /praveen/oraclenet and nfs mount on the new dir...

Rgds...Geoff