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Force TCP NFS Mount with TCP/IP 5.6

 
Vuffray Joris
Occasional Visitor

Force TCP NFS Mount with TCP/IP 5.6

Hi,
I'm trying to force an openvms system to mount an NFS share over TCP instead of udp.
Is there a special mount command to do that?
11 REPLIES 11
Wim Van den Wyngaert
Honored Contributor

Re: Force TCP NFS Mount with TCP/IP 5.6

ucx set servi nfs/port=xxx/prot=tcp ?

Don't have a system to test it.

Wim
Wim
Wim Van den Wyngaert
Honored Contributor

Re: Force TCP NFS Mount with TCP/IP 5.6

Vuffray Joris
Occasional Visitor

Re: Force TCP NFS Mount with TCP/IP 5.6

I'll check that.

Thanks for the link...

Rgds, Joris
Wim Van den Wyngaert
Honored Contributor

Re: Force TCP NFS Mount with TCP/IP 5.6

For the client part it's not that clear. Unix clients can use mount /protocol (or equiv) but VMS seems to have no option.

The info on service level is simply not used. It's simply a db that a service may read to get params but it's not obliged to do so.

Wim
Wim
Vuffray Joris
Occasional Visitor

Re: Force TCP NFS Mount with TCP/IP 5.6

I've just tried to skip upd on the NFS Server side (RHEL4), but the VMS Client is then unable to connect & mount the FileSystem.
got:
-SYSTEM-F-NOSUCHOBJ, network object is unknown at remote node

Strange...

I'm wondering if TCP is really supported by the client.
Wim Van den Wyngaert
Honored Contributor

Re: Force TCP NFS Mount with TCP/IP 5.6

Oeps. Didn't notice that you only need the client. Whatever. I learned already something.

Could it be that portmapper is used to find the protocol ? Ot says something in the log file about MOUNT and protocol.

Wim
Wim
Wim Van den Wyngaert
Honored Contributor

Re: Force TCP NFS Mount with TCP/IP 5.6

Tried it on TCP 5.3. VMS to VMS. Not working either. Can't force the client into TCP.

I did succeed in getting a hang of the NFS server. Stop/id and disable servi didn't work. After a reboot my client still didn't work. Had to reboot the client too. Nice ...

Wim
Wim
Vuffray Joris
Occasional Visitor

Re: Force TCP NFS Mount with TCP/IP 5.6

TCP for the NFS Client is a new feature of the 5.6 Version; so it won't work with 5.3
Wim Van den Wyngaert
Honored Contributor

Re: Force TCP NFS Mount with TCP/IP 5.6

The server is clearly supported in 5.3 eco 2.

How do you specify the client tcp mode ?

Wim
Wim
Vuffray Joris
Occasional Visitor

Re: Force TCP NFS Mount with TCP/IP 5.6

Is the server side supporting TCP in 5.3a?
I'm speaking about the client side. They mention TCP support 'til version 5.6

How to specify TCP in client mode is the reason why I opened this post: I don't know.
I couldn't find any Infos in the docs...

Wim Van den Wyngaert
Honored Contributor

Re: Force TCP NFS Mount with TCP/IP 5.6

Yes it's in 5.3. ucx sho dev (I know, it's not ucx) shows 2 listeners : 1 in DATAGRAM and 1 in STREAM. So, it's supported. IOn server level.

Wim
Wim