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Operating Systems Linux RH Switching rootvg/sanvg to New SAN Post 302959717 by rbatte1 on Thursday 5th of November 2015 12:43:31 PM
Old 11-05-2015
When I have migrated LVM managed volumes in the past, we would:-
  • Present the new LUNs
  • Grow the volume groups be adding the new LUNs
  • Use pvmigrate, pvmove or migratepv (as appropriate to the OS to move the logical volumes from the old to the new LUNs
  • Remove the old (empty) LUNs from the volume group
  • Remove the old LUNs from the OS
  • Remove the old LUNs from the old SAN
The boot volume group is rather trickier and you may have to do some when booted from CD, else the devices will be in use. You would probably need to edit the grub, however I have not had to do this as we were always local boot and just the data volume groups were moving.

There is commercial software that may assist you with this, such as that from Storix (see https://www.youtube.com/user/StorixSoftware and Linux, AIX and Solaris Backup and System Recovery Software) or Christie Clone Manager (see Cristie and Cristie Software CloneManager) that may help. If it's a one-off, you might even manage the process with the demo software, but perhaps it would be worth investing in one of them anyway.



I hope that this helps,
Robin
 

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URI::URL(3pm)						User Contributed Perl Documentation					     URI::URL(3pm)

NAME
URI::URL - Uniform Resource Locators SYNOPSIS
$u1 = URI::URL->new($str, $base); $u2 = $u1->abs; DESCRIPTION
This module is provided for backwards compatibility with modules that depend on the interface provided by the "URI::URL" class that used to be distributed with the libwww-perl library. The following differences exist compared to the "URI" class interface: o The URI::URL module exports the url() function as an alternate constructor interface. o The constructor takes an optional $base argument. The "URI::URL" class is a subclass of "URI::WithBase". o The URI::URL->newlocal class method is the same as URI::file->new_abs. o URI::URL::strict(1) o $url->print_on method o $url->crack method o $url->full_path: same as ($uri->abs_path || "/") o $url->netloc: same as $uri->authority o $url->epath, $url->equery: same as $uri->path, $uri->query o $url->path and $url->query pass unescaped strings. o $url->path_components: same as $uri->path_segments (if you don't consider path segment parameters) o $url->params and $url->eparams methods o $url->base method. See URI::WithBase. o $url->abs and $url->rel have an optional $base argument. See URI::WithBase. o $url->frag: same as $uri->fragment o $url->keywords: same as $uri->query_keywords o $url->localpath and friends map to $uri->file. o $url->address and $url->encoded822addr: same as $uri->to for mailto URI o $url->groupart method for news URI o $url->article: same as $uri->message SEE ALSO
URI, URI::WithBase COPYRIGHT
Copyright 1998-2000 Gisle Aas. perl v5.14.2 2012-02-11 URI::URL(3pm)
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