Move a LUN from one server to the other Post: 303013122

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Operating Systems Linux Red Hat Move a LUN from one server to the other Post 303013122 by bakunin on Thursday 15th of February 2018 09:58:31 AM

02-15-2018

Registered User

Quote:

Originally Posted by fretagi

I can see the new LUN when running fdisk:

Code:

fdisk -l | egrep '^Disk' | egrep -v 'dm-' | grep -v identifier
Disk /dev/sda doesn't contain a valid partition table
Disk /dev/cciss/c0d0: 450.0 GB, 450064605184 bytes
Disk /dev/sda: 32.2 GB, 32212254720 bytes

so I think the new LUN is /dev/sda

I don't think this is the same LUN because otherwise you would see the filesystems/partitions/whatever on it. Notice that LUNs have an identifier (the so-called "WWN" and you can identify it by this. Use your HBAs driver software to find out the WWNs of your attached disks.

Notice also that there is the "zoning" which has to be correct: basically zoning is somewhat analogous to firewall rules: each partner (the LUN, the HBA, the fabrics port) has an identifying WWPN (World Wide Port Number) and you create a rule that says WWPN A (your adapter) is allowed to connect to WWPN B (the LUN) and vice versa. If the LUN was part of a different system before you perhaps need to change this rule to make it visible to the new system (or, more precisely, to its FC adapter). Your storage administrator should be able to explain the intrinsics to you in more detail.

I hope this helps.

bakunin

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rhnreg_ks

RHNREG_KS(8)							   Red Hat, Inc.						      RHNREG_KS(8)

NAME

       rhnreg_ks - A program for non interactively registering systems to Spacewalk Server, Red Hat Satellite or Red Hat Network Classic.

SYNOPSIS

       rhnreg_ks [options]

DESCRIPTION

       rhnreg_ks  is  a  utility  for  registering  a  system with the "Spacewalk Server", "Red Hat Satellite" or "Red Hat Network Classic". It is
       designed to be used in a non-interactive environment  (a kickstart style install, for example).	All the information can  be  specified	on
       the command line or stdin.

OPTIONS

       --profilename
	      Specify  the profile name that should be used as an identifier for the system in Spacewalk Server, Red Hat Satellite or Red Hat Net-
	      work Classic

       --username
	      The username to register the system with under Spacewalk Server, Red Hat Satellite or Red Hat Network Classic. This can be an exist-
	      ing Spacewalk, Red Hat Satellite or Red Hat Network Classic username, or a new username.

       --password
	      The password associated with the username specified with the --username option. This is an unencrypted password.

       --activationkey
	      Specify/use a serial number to associate with the system. This is optional, but activation keys can really simplify the registration
	      process. Learn more about activation keys in the online RHN documentation.

       --contactinfo
	      This option has been deprecated. Please login to the server web user interface and update your contactinfo.

       --nohardware
	      Do not probe or upload any hardware information.

       --nopackages
	      Do not profile or upload any package information.

       --novirtinfo
	      Do not profile or upload any virtualization information.

       --norhnsd
	      Do not start rhnsd after completion.

       --force
	      Register the system even if it has already been registered.

       --version
	      Show the version of rhnreg_ks.

       --proxy
	      Specify a HTTP proxy to use.

       --proxyUser
	      Specify a username to use with an authenticated HTTP proxy.

       --proxyPassword
	      Specify a password to use with an authenticated HTTP proxy.

       --sslCACert
	      Specify a path to a SSL CA certificate to use.

       --serverUrl
	      Specify a URL to as the server.

       -h, --help
	      Show a help message and exit.

FILES

       /etc/sysconfig/rhn/systemid
	      The digital server ID for this machine if the system has been registered onto "Spacewalk Server", "Red Hat Satellite"  or  "Red  Hat
	      Network Classic".  This file does not exist otherwise.

       /etc/sysconfig/rhn/up2date
	      The common configuration file used by RHN client programs.

EXAMPLES

       Register a new system to Spacewalk / Red Hat Satellite / Red Hat Network Classic:

	      rhnreg_ks --profilename "example_profile_name" --username "someexampleuser" --password "foobar"

SEE ALSO

       rhn_check(8), rhn_register(8), rhnsd(8), rhn-profile-sync(8), rhnplugin(8), up2date(5).

AUTHORS

       See the AUTHORS file included with this software.

       This manual page was written by Adrian Likins <alikins@redhat.com> and James Bowes <jbowes@redhat.com>

BUGS

       Report bugs to <http://bugzilla.redhat.com>.

COPYRIGHT

       Copyright (C) 1999-2011 Red Hat, Inc.

       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

Linux								  2011 February 4						      RHNREG_KS(8)