Re: Backing up from your Mimix HA machine

["Bob P. Roche" <BRoche@xxxxxxxxxxxxxxxxx>]

A previous employer of mine did this type of backup at 2 sites that needed 
to be up 24/7. I know they used Mimix, but I wasn't part of the direct 
support for those locations, so I don't know the commands used. Annually 
we would take down the production box for a full system save  during a 
planned outage. This worked well. Of course being the (at the time) as/400 
we never had to run a "live" test of switching to our HA servers only 
planned outage tests. 



From:
Kirk Goins <kirkgoins@xxxxxxxxx>
To:
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Date:
03/02/2011 03:48 PM
Subject:
Re: Backing up from your Mimix HA machine
Sent by:
midrange-l-bounces@xxxxxxxxxxxx



Well, I  guess a question is does your HA config get EVERYTHING you want
backed up on a nightly basis? Another is do your regularly role to the HA
system and run? What would it take to rebuild the Production/Source system
and can the backups from the HA provide what is needed.
In theory, This process can minimize your downtime window for backups as
long as you are getting what you need and know how to recovery. You may
still need a Local Full Save or Save IBM. Are these machine local ( cross
town or inthe same room ) vs 1,000's ot 100's of miles apart? How often do
you grab last night's or last week's tape and restore?


On Wed, Mar 2, 2011 at 1:28 PM, <rob@xxxxxxxxx> wrote:

> I ran the following by Lakeview support:
> <snip>
> Suppose your source machine is GDIHQ and your target machine is GDIHQ2. 
I
> am hearing that we should forego backups on GDIHQ and we should be 
backing
> up from GDIHQ2 as to not disrupt our line of business.
> Do you have any documentation on the "best practices" of doing that? 
Like,
> do I shut down Mimix enough to free the locks and allow us to perform 
our
> backups but not so far as to kill the remote journals from still getting
> their entries?
> We want to use BRMS.
> </snip>
>
> And their reply was
> <snip>
> Yes, lots of installations do their backups on their HA systems. There
> really isn't an official "Best Practice" recommendation, but personally, 
I
> would set it up just as you describe. Specifically, you can do:
> <mimix>/ENDDG DGDFN(*ALL) PRC(*DBAPY) ENDOPT(*IMMED) ENDRJLNK(*NO)
>
> at the beginning of your backup process, then restart the MIMIX 
processes
> with:
>
> STRDG DGDFN(*ALL) PRC(*DBAPY)
> </snip>
>
> Sounds pretty straight forward to me.  Does anyone have any comments or
> suggestions?
>
>
> Rob Berendt
> --
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> Dept 1600
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