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Full Discussion: Cluster 6.1 storage move
Operating Systems AIX Cluster 6.1 storage move Post 302949019 by bakunin on Monday 6th of July 2015 05:38:34 AM
Old 07-06-2015
Quote:
Originally Posted by snchaudhari2
The plan that our architect implemented in summary is :
shutdown the source servers,
replicate the old luns with new luns,
remove the old luns and allocate new luns.
Bring the servers up.
The problem with this plan is:

1. the new LUNs will have different WWNs and therefore the volume group information of the system will not be consistent. Basically you will have to build the cluster resources anew.

2. You need a (complete) downtime to do this as your storage guy planned. What i described will need no downtime at all. To reconfigure all the VGs and RGs plan at least 1-2 hours (30 min to actually do it, 30-90 min in contingency) and you will not know if everything went well until you do an "extended verification and synchronisation". (Technically speaking, you will be creating new VGs, which just happen to have the same name as the old ones and you will build new ressource groups from them, which happen to have the same name as the old ones.)

I hope this helps.

bakunin
 

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TAP::Parser::Result::Plan(3pm)				 Perl Programmers Reference Guide			    TAP::Parser::Result::Plan(3pm)

NAME
TAP::Parser::Result::Plan - Plan result token. VERSION
Version 3.26 DESCRIPTION
This is a subclass of TAP::Parser::Result. A token of this class will be returned if a plan line is encountered. 1..1 ok 1 - woo hooo! 1..1 is the plan. Gotta have a plan. OVERRIDDEN METHODS
Mainly listed here to shut up the pitiful screams of the pod coverage tests. They keep me awake at night. o "as_string" o "raw" Instance Methods "plan" if ( $result->is_plan ) { print $result->plan; } This is merely a synonym for "as_string". "tests_planned" my $planned = $result->tests_planned; Returns the number of tests planned. For example, a plan of 1..17 will cause this method to return '17'. "directive" my $directive = $plan->directive; If a SKIP directive is included with the plan, this method will return it. 1..0 # SKIP: why bother? "has_skip" if ( $result->has_skip ) { ... } Returns a boolean value indicating whether or not this test has a SKIP directive. "explanation" my $explanation = $plan->explanation; If a SKIP directive was included with the plan, this method will return the explanation, if any. "todo_list" my $todo = $result->todo_list; for ( @$todo ) { ... } perl v5.18.2 2014-01-06 TAP::Parser::Result::Plan(3pm)
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