Re: CISC to RISC Circa 2006 (was RE: V5R4 upgrade from V5R3)

I did a cisc-risc very basic upgrade back a couple of months
ago.

I concluded that since we were going from V3R2 to V5R3
on a 520, there were some risks.

(1) I saved the libraries(*allusr) on the V3R2 machine.
(2) Restored only their production and data libraries.
(3) Ran a strobjcvn on each library.
(4) Plugged in the twinax cables.
(5) Rekeyed all the user profiles manually.(8)
(6) Ran the daily production procedures.(all ran fast and fine)
(7) Went home. (total time 7 hrs)

The "only" issues that have come up are security issues due to
the fact that the V3R2 was running at seclvl=10 and they went to 40.

That caused two minor security issues that were fixed in 30 seconds.

They are very happy and I have not heard a peep out of them in over
a month.

I forgot... I also added two additional drives and started mirroring
on the new drives.


Al Barsa wrote:

The customer in the S36E (and very happy with it) has initiated the upgrade
because they had no connectivity to their Windoze server.

We think we have all the PTFs.  We will migrate them to a decommissioned
170 at V4R5, and then upgrade that to V5R2.

Then we will upgrade that onto a 520 at V5R4.

Not a lot of knowledge running around about this process any more.