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Full Discussion: mksysb restoration using NIM
Operating Systems AIX mksysb restoration using NIM Post 302410454 by bakunin on Tuesday 6th of April 2010 04:57:37 AM
Old 04-06-2010
Quote:
Originally Posted by depam
1.) unmirrorvg hdisk1
2.) reducevg hdisk1
3.) bosboot -a hdisk1
4.) bootlist -m hdisk0
5.) Create mksysb via NIM
6.) Install in hdisk0

If everything fails, I can still set the boot device to hdisk1.
This is true in a way: if you break the mirror you have two identical copies of the rootvg and if you destroy one you still have the other. The same principle is used in the alt-disk-install procedure.

I still don't think this is necessary because you said above that the server is not commissioned yet. The worst which could happen is that you will have to set up the server from scratch.

While the IBM engineer is right about this being the most failsafe procedure it also introduces a little uncertainty because you are not testing what you will use in production. I prefer to make my tests always as close to production as possible.

Quote:
Originally Posted by depam
So does it mean that if I trigger the backup in NIM the server will automatically restart and I will need to set the IPL to network?
Not at all! If you trigger the backup on the NIM server it will create a NIM resource of type mksysb, nothing more. You will have to allocate this (and a few secondary) resource(s) and generally the follow procedure for installing NIM clients from a server to reinstall your system using this mksysb image. You will also have to manually stop the client and initiate the reinstall in the POST-menu there.

I hope this helps.

bakunin
 

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LEARN ABOUT SUNOS

dfmounts_nfs

dfmounts_nfs(1M)					  System Administration Commands					  dfmounts_nfs(1M)

NAME

       dfmounts_nfs - display mounted NFS resource information

SYNOPSIS

       dfmounts [ -F nfs] [-h] [server...]

DESCRIPTION

       dfmounts  shows	the local resources shared through  NFS, along with the list of clients that have mounted the resource. The -F flag may be
       omitted if  NFS is the only file system type listed in the file	/etc/dfs/fstypes.

       dfmounts without options, displays all remote resources mounted on the local system, regardless of file system type.

       The output of dfmounts consists of an optional header line (suppressed with the -h flag) followed by a list of lines containing whitespace-
       separated fields.  For each resource, the fields are:

       resource server pathname clients ...

       where

       resource        Does not apply to  NFS.	Printed as a hyphen (-).

       server	       Specifies the system from which the resource was mounted.

       pathname        Specifies the pathname that must be given to the share(1M) command.

       clients	       Is a comma-separated list of systems that have mounted the resource.

OPTIONS

       -F nfs	       Specifies the nfs-FSType.

       -h	       Suppress header line in output.

       server	       Displays  information  about  the resources mounted from each server, where server can be any system on the network.  If no
		       server is specified, the server is assumed to be the local system.

FILES

       /etc/dfs/fstypes

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWnfscu 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mount(1M), share(1M), unshare(1M), attributes(5)

SunOS 5.10							    6 Nov 2000							  dfmounts_nfs(1M)
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