<<I'm thinking Mimix would need to be disabled while these upgrades are
done.>>
What does Mimix support recommend?
Paul Nelson
Cell 708-670-6978
Office 409-267-4027
nelsonp@xxxxxxxxxxxxx
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Steinmetz, Paul
Sent: Wednesday, April 18, 2018 7:59 AM
To: 'Midrange Systems Technical Discussion'
Subject: RE: Anyone in the group running Vision Solutions Mimix 8.1 for
HA/DR ?
< As far as application upgrades using Mimix-- for whatever reason,
management has drunk the Kool-Aid, and migrated most applications (other
than order entry, invoicing, and accounting) to network servers. So we
don't have payroll, fixed assets, and a few others to worry about. The OE,
invoicing, and accounting are self-maintained, and we test thoroughly on the
test side, then promote to production.
My questions and concerns are how will Mimix handle other 3rd party products
upgrades.
We have about 20.
Many of the products either delete/rename the current product library, then
restores the product from a savf for their upgrade.
I'm thinking Mimix would need to be disabled while these upgrades are done.
Paul
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Musselman, Paul
Sent: Tuesday, April 17, 2018 10:59 PM
To: Midrange Systems Technical Discussion
Subject: RE: Anyone in the group running Vision Solutions Mimix 8.1 for
HA/DR ?
Paul,
Re: switching-- we switched back after the test; we hadn't let any users
actually -do- anything while we were switched! It was more a
proof-of-concept.
I'm not sure how we got away from actually switching; we continued working
with our hot site in Philadelphia for years. At the time, that satisfied
our auditors.
As far as application upgrades using Mimix-- for whatever reason, management
has drunk the Kool-Aid, and migrated most applications (other than order
entry, invoicing, and accounting) to network servers. So we don't have
payroll, fixed assets, and a few others to worry about. The OE, invoicing,
and accounting are self-maintained, and we test thoroughly on the test side,
then promote to production.
Paul E Musselman
PaulMmn@xxxxxxxxxxxxx
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Steinmetz, Paul
Sent: Tuesday, April 17, 2018 7:04 PM
To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxx>
Subject: RE: Anyone in the group running Vision Solutions Mimix 8.1 for
HA/DR ?
Paul,
Thanks for info.
When I was referring to an application upgrade, I did specifically mean a
Mimix upgrade, but an upgrade of any application being Mimixed.
I know this can get complicated with the HA/DR software.
< As far as using Mimix to switch production to the backup system, we used
to have a huge switch bank to switch all of our comm lines from the
production system to the test/backup system. We ran the Mimix switch once,
just to prove we could do it, and never did it again.
When you did the switch, did you switch and then eventually switch back?
I sense you may not be comfortable with the switch process, correct?
I'm probably going to be in the same boat.
We talk to many remote sites, I need to very comfortable with the switch
process, including the IP takeover, other network concerns, firewall rules,
etc. .
Paul
.
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Musselman, Paul
Sent: Tuesday, April 17, 2018 6:24 PM
To: Midrange Systems Technical Discussion
Subject: RE: Anyone in the group running Vision Solutions Mimix 8.1 for
HA/DR ?
Paul--
We're running Mimix/Enterprise v.8.0.17.00 Not quite v.8.1.
We're currently running between 2 LPARs, using the 2nd LPAR mainly for
running WebQuery and a copy of production for development work.
We use to have a 3-way connection, from 1 LPAR to 2 LPARs. That has been
reduced to just the 2 systems we have running Mimix now.
We normally consult with Mimix for upgrades-- usually just suspending Mimix
and running the upgrade process. IIRC there was once a more involved
process due to some file changes.
As far as system upgrades, we apply to the 'destination' system first, then
the 'source' system. All we do with Mimix is shut down the replication in a
controlled fashion, apply the upgrade on the 'destination' system, then
start everything back up again. Then, a week or two later, we shut Mimix
down again and upgrade the 'source' system.
We do not Mimix the whole system. The 'destination' system includes copies
of selected production libraries.
Our backups used to save the libraries on the 'destination' system, in
several large chunks-- the libraries from the production system, programmer
libraries, and the assorted development source libraries. We also saved
selected libraries and the IFS on the production system. Our OS backups
were Option/22 backups once a month on both systems. For disaster recovery,
we assembled a production system out of the pieces we saved between the 2
systems. WebSphere, a monster that uses the IFS and database files, was not
very cooperative.
Currently, we save the production system from a flash copy and run a
complete Option/21 every night. A very nice luxury!
On the development system we no longer save the copies of the production
libraries, but do save the programmer and development libraries. Once a
month we make a flash copy of this system and perform an Option/22 save. We
have not run a complete Option/21 on the development system. But we should.
For backups, on the production system we're running a home-brew Option/21
save direct to tape (LTO4 tape library). This runs automatically, triggered
by the FSFC Utility.
On the development system we're using Robot/Save from Help Systems. We've
been using the Robot products for years, long before IBM thought about BRMS
or the Advanced Scheduler.
As far as using Mimix to switch production to the backup system, we used to
have a huge switch bank to switch all of our comm lines from the production
system to the test/backup system. We ran the Mimix switch once, just to
prove we could do it, and never did it again.
Currently, we have a duplicate system at a hot site. We have V9000 storage
at both locations, and use Metro Mirror (or whatever it's called) to
replicate the V9000 to the other location. It just quietly sits there
swallowing all of the data we send it. We can flash copy the hot site
system and wake up a copy just to prove we can do it. This has replaced our
annual trips to a hot site in Philadelphia, loading everything we own into a
strange system. If we had to do that now, we'd just take our 2 daily
option/21 tapes and find a vacant computer.
Paul E Musselman
PaulMmn@xxxxxxxxxxxxx
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Steinmetz, Paul
Sent: Tuesday, April 17, 2018 4:29 PM
To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxx>
Subject: Anyone in the group running Vision Solutions Mimix 8.1 for HA/DR ?
Anyone in the group running Vision Solutions Mimix 8.1 HA/DR ?
Thank You
_____
Paul Steinmetz
IBM i Systems Administrator
Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071
610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home
psteinmetz@xxxxxxxxxx
http://www.pencor.com/
midrange.com
