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 ULTRIX

mountd

mountd(8nfs)															      mountd(8nfs)

Name
       mountd - NFS mount request daemon

Syntax
       /etc/mountd [-i] [-d] [-s]

Description
       The daemon must be run on NFS servers to process NFS mount protocol requests.  It reads the file to determine which file systems and direc-
       tories are available to which machines and users, and makes this information available to the operating system.	The machine  names  listed
       in  the	file may optionally contain the local BIND domain name.  For more information on BIND, see the Guide to the BIND/Hesiod Service To
       see which clients have file systems or directories mounted, use the command.

Options
       -d If you are running the BIND/Hesiod service, after checking the Internet address, will verify that the host requesting a mount or unmount
	  is in the server's domain.

       -i Turns  on  verification  of the Internet address of the client against the server's database for mounts and unmounts.  The default is no
	  address verification.

       -s If you are running the BIND/Hesiod service, after checking the Internet address, will verify that the host requesting a mount or unmount
	  is in the server's subdomain.

See Also
       exports(5nfs), mount(8nfs), nfsd(8nfs), showmount(8nfs)
       Guide to the BIND/Hesiod Service

																      mountd(8nfs)