Sounds good.
How long was the total restore time for each LPAR for the migration?

I did P7 to P9 migration 3 years ago, using a similar process.
It's a good live test of a system restore.


-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Rob Berendt
Sent: Friday, December 3, 2021 9:42 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: P8 to P9 migration

Moved a pair of lpars from a P8 8286-41A with 15k spinning disks to a P9 9009-42A with SSD's this week.
Rclstg dropped from 1:00 to 0:03
Full BRMS save dropped from 2:03 to 1:03
Rclstg dropped from 0:13 to 0:01
Full BRMS save dropped from 0:36 to 0:11

Migration was done using a BRMS save. Hey, if you don't test your restores then you don't have a save. Restores were done using the BRMS recovery report.
All lpars are guested underneath internal disk hosted by an lpar of IBM i.
Migration was done under IBM i 7.4.
Media was a Data Domain 2500 VTL. With four "drives" in parallel.

Same subnet.
Only problems:

- Could not use the VTL as an alternate IPL device. However I could use it as an alternate installation device.

- Had to change the resource name on the line descriptions. This is a very minor issue.

- New license keys

P8 is still in use serving up other lpars (for now)
P9 has been in use and these were new lpars added to an existing situation.

Rob Berendt
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600 Mail to: 7310 Innovation Blvd, Suite 104
Ft. Wayne, IN 46818
Ship to: 7310 Innovation Blvd, Dock 9C
Ft. Wayne, IN 46818

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