Sysmirror 7.1.3 Resource Group NFS mounts Post: 303001313

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Operating Systems AIX Sysmirror 7.1.3 Resource Group NFS mounts Post 303001313 by bakunin on Tuesday 1st of August 2017 01:49:16 PM

08-01-2017

Registered User

Quote:

Originally Posted by MichaelFelt

Something else to look into (bakunin please verify still possible - I do not have a PowerHA/SystemMirror config to review) would be to remove the mount/unmount from the start/stop scripts.

Instead, make the mounts part of the resource group - and the resource group makes sure the mounts are active before calling the start script and the unmounts are called after the stop script.

Absolutely!

Right now i don't have a HACMP-system at hand to check the details myself, but: yes, that is (still) possible and in fact is the recommended way to do it.

Mounts will be done by a sort-of start/stop-Script HACMP provides for itself, its name is "clas-nfsv4" or something similar (again, i can't check and am working from memory) which will be entered automatically when you configure an NFS-mount and/or -export. I am not sure if one can configure the order in which this and your own application-server is called but if you want to be perfectly sure configure the NFS-services in its own RG, then configure a start before/stop after-dependency with your application RG.

I hope this helps.

bakunin

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LEARN ABOUT FREEBSD

showmount

SHOWMOUNT(8)						    BSD System Manager's Manual 					      SHOWMOUNT(8)

NAME

     showmount -- show remote nfs mounts on host

SYNOPSIS

     showmount [-a | -d] [-e] [-1] [-3] [host]

DESCRIPTION

     The showmount utility shows status information about the NFS server on host.  By default it prints the names of all hosts that have NFS file
     systems mounted on the host.  See NFS: Network File System Protocol Specification, RFC 1094, Appendix A, and NFS: Network File System Version
     3 Protocol Specification, Appendix I, for a detailed description of the protocol.

     The following options are available:

     -a      List all mount points in the form:
		   host:dirpath.

     -d      List directory paths of mount points instead of hosts.

     -e      Show the host's exports list.

     -1      Use mount protocol Version 1, compatible with legacy servers.

     -3      Ignored for backwards compatibility.

SEE ALSO

     mount(8), mount_nfs(8), mountd(8)

HISTORY

     The showmount utility first appeared in 4.4BSD.

BUGS

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

BSD
								  August 16, 2014							       BSD