AIX NFS Server and NFS Client Post: 302960125

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Operating Systems AIX AIX NFS Server and NFS Client Post 302960125 by MichaelFelt on Tuesday 10th of November 2015 06:53:17 PM

11-10-2015

Registered User

Thanks for the update.

Your fix was to be my recommendation.

a) AIX, to boot (quickly) needs to have two IP addresses in /etc/hosts
127.0.0.1 loopback localhost
A.B.C.D hostname

b) for the AIX NFS server both server and client must agree on the name and IP address used by the client to connect (mount) on the server. There was a time that when the client used a shortname and the server a "longname" the mount would fail (I hope the shortname check is enough these days)

In short, when NFS mounts are taking a long time verify the IP address used to connect (especially from multi-homed clients). Back in telnet days I would just telnet in to the server and then use the who command to see what IP address/hostname the server reported. If it was an IP address I knew I needed to do something because the hostname - short or long - was not resolving. It might also be what I considered the alias - again, if not the name the client was announcing - the AIX server will refuse the mount.

Hope this helps your understanding!

MichaelFelt

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showmount

showmount(8)						      System Manager's Manual						      showmount(8)

NAME

       showmount - Shows remote NFS compatible mounts on a host

SYNOPSIS

       showmount [-adeT] [-t nnn] [host]

FLAGS

       Lists  all mount points in the form: hostname:dirpath. In this form, hostname is the name of a client that has remotely mounted a directory
       from an NFS server, and dirpath is the directory that has been mounted.	Lists only directories that have been remotely mounted by clients.
       Shows  host's  exports  list.  Specifies an infinite timeout.  The default timeout value is 25 seconds.	Specifies a timeout value, in sec-
       onds.  The default timeout value is 25 seconds.

       The default value for host is the current hostname.

DESCRIPTION

       The showmount command shows status information about the NFS server on host. By default, it prints the names of all  hosts  that  have  NFS
       file  systems  mounted  from  the  server  host.   See  NFS: Network File System Protocol Specification, RFC1094, Appendix A for a detailed
       description of the protocol.

NOTES

       The mountd daemon running on the server only has an idea of the actual mounts, since the NFS server is stateless. showmount will only  dis-
       play the information as accurately as the mount daemon reports it.

       The default timeout value of 25 seconds can be too brief to read and verify an export list.  If you receive timeout messages when using the
       showmount -e command, use either the -T or the -t options to increase the timeout value.

FILES

       Specifies the command path Contains a table of local file systems mounted by remote NFS clients

RELATED INFORMATION

       Commands: mount(8)

       Daemons: mountd(8)

       Files: mountdtab(4) delim off

																      showmount(8)