Re: Live Partition Mobility Question 'vs' POWER-HA.

My guess would be yes but I have not investigated this particular
configuration.

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 1/31/2013 2:28 PM, Jack Kingsley wrote:

Can LPM work on FLEX using EMC SAN??

On Thu, Jan 31, 2013 at 2:25 PM, DrFranken <midrange@xxxxxxxxxxxx>

wrote:

Jack,

This is a bit of an apples and oranges comparison.

PowerHA allows you to switch between locations during an

outage at

your
planned location. While down on 'site A' you can do maintenance there
including PTFs as needed. PowerHA has it's own flavors, some that use
the internal capability for IBM i to replicate an entire iASP and others
that rely on the SAN for that capability.

LPM allows you to move a partition, on the fly, between two

POWER

systems. The thing here is that they are using the SAME DASD so if you
do switch you can't bring the 'primary' back up to do maintenance on it
because it has no disk. This is great for moving capacity around,
hardware maintenance and such but isn't really a High Availability
strategy on it's own.

LPM also has some fairly steep requirements such as 100.00%

hosted

everything (DASD, COMM, Tape etc) VIOS is required as the hosting
partition, All DASD must be on SAN with NIiV capability. And I've likely
missed a few. :-)


- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 1/31/2013 1:20 PM, Jack Kingsley wrote:

Has anyone installed this, pros/cons. I have been reading the

requirements

and they seem lengthy as well as pricey. Is there any real significant
gains to doing LPM 'vs' POWER-HA. A major requirement for LPM is SAN

where

POWER-HA could be either or from what I am reading.

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