04-10-2019
Unable to mount previously-working NFS share from NIM to LPAR
Right, now that I've finally worked out this website, I'll ask my question!
I am having an absolute nightmare with NFS on AIX. I have used it many times, and I know what I'm doing, however I cannot fathom what is going on here. I have 2 LPARs, sitting on the same physical host. They are configured with an internal and external network. The internal network is being used here. Nothing has changed since this was working, as far as the network connections go. However, when I mount any exported filesystems from NIM to LPAR1, I get a timeout:
nfsmnthelp: NIMsvr: Connection timed out
I have checked the following:
1. /etc/hosts is correct on both, and I have tried using both networks
2. NFS is started on both NIM and LPAR1. I have tried restarting the services using `stopsrc -g nfs; stopsrc -s portmap` then starting them again
3. Stopping services, then running `rm -rf /etc/state /etc/sm /etc/sm.bak /etc/xtab /etc/rmtab; startsrc -s portmap; startsrc -g nfs; exportfs -a; showmount -e NIMsvr`. The last command shows the mount is available
4. Removing the export from NIM, removing it from LPAR1, then restarting NFS on both NIM and LPAR1, adding the mount back in and re-mounting (checking showmount -e before adding back in and after, and the mount shows up the second time)
5. Telnet to port 111 from LPAR1 to NIM works fine
I am out of ideas, can anyone help please? I am about to pull my last few hairs out!
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LEARN ABOUT DEBIAN
mount.nfs
MOUNT.NFS(8) System Manager's Manual MOUNT.NFS(8)
NAME
mount.nfs, mount.nfs4 - mount a Network File System
SYNOPSIS
mount.nfs remotetarget dir [-rvVwfnsh ] [-o options]
DESCRIPTION
mount.nfs is a part of nfs(5) utilities package, which provides NFS client functionality.
mount.nfs is meant to be used by the mount(8) command for mounting NFS shares. This subcommand, however, can also be used as a standalone
command with limited functionality.
remotetarget is a server share usually in the form of servername:/path/to/share. dir is the directory on which the file system is to be
mounted.
Under Linux 2.6.32 and later kernel versions, mount.nfs can mount all NFS file system versions. Under earlier Linux kernel versions,
mount.nfs4 must be used for mounting NFSv4 file systems while mount.nfs must be used for NFSv3 and v2.
OPTIONS
-r Mount file system readonly.
-v Be verbose.
-V Print version.
-w Mount file system read-write.
-f Fake mount. Don't actually call the mount system call.
-n Do not update /etc/mtab. By default, an entry is created in /etc/mtab for every mounted file system. Use this option to skip making
an entry.
-s Tolerate sloppy mount options rather than fail.
-h Print help message.
nfsoptions
Refer to nfs(5) or mount(8) manual pages.
NOTE
For further information please refer nfs(5) and mount(8) manual pages.
FILES
/etc/fstab file system table
/etc/mtab table of mounted file systems
SEE ALSO
nfs(5), mount(8),
AUTHOR
Amit Gud <agud@redhat.com>
5 Jun 2006 MOUNT.NFS(8)