AIX User Meeting 2 - IBM

8/4/2020

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© IBM Corporation, 2020

User Meeting 23rd August 2020


Live Partition Migration (LPM)

https://www.ibm.com/downloads/cas/39XWR7YM

Updated in April

New

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IBM POWER9 Scale-Out S922 & S924

Announce: 14th July 2020Available: 24th July 2020

POWER9 S922 and S924 update:

1. All 11 PCIe adapter slots are Gen4 but accept Gen2, Gen3 adapters too

2. New option for 2 or 4 front disks slots for fast U.2 NVMe driveswith matching disk backplane + new bezel

3. More NVME disk options + NVME adapter options (Max 90 TB of NVMe)

4. Special 1 core model for low end IBM i clients

S924 key features: 24 CPU cores, up to 4GHz, 11 PCIe Gen4 slots, built in Virtualisation PowerVM, HMC control of light out operations, up to 4 TB RAM

5. Power Enterprise Pools 2.0 now covers the Scale-out CPU cores. Purchase 8+ cores then additional cores are managed by pay-per-use

minute by minute across many servers via the IBM Cloud Management Console & HMC


IBM POWER9 Scale-Out S922 & S924

rPerf minor change

- Updated rperf Script to tell you the LPAR rPerf estimate- https://www.ibm.com/support/pages/get-rperf-performance-rating-your-aix-lpar

New ‘G’ models same rPerfs as the ‘A’ Models

• Benchmarks not limited by PCIe Gen4 or internal disks

See Power System VUG for last weeks 90 minute session

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Redbook for the new POWER9 Scale-Out ‘G’ models:

“IBM Power Systems S922, S914, and S924 Technical

Overview and Introduction Featuring PCIe Gen 4

Technology”

http://redbooks.ibm.com/redpapers/pdfs/redp5595.pdf

RedBook on new S9xx Servers


AIX Strength to Strength

"AIX Strength to Strength" is back online - with PDF printable version is 91 pages!

All the AIX Releases since AIX 4.1 update in 1996.

Start playing the game the whole family loves: What year did we first see AIX feature XXXX arrive?

https://ibm.com/support/pages/ibm-aix-strength-strength

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AIX in Focuson YouTube


YouTube – This MonthYouTube

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LKULive Kernel Update

???


AIX in Focus Playlist on YouTube

https://youtu.be/XtWxC5IJWKg

Active Memory Expansion (AME)

Update: 64 KB memory pages

Compression by #POWER8 & #POWER9 accelerators

16 times more cost effective memory for original 2010 price

Use "amepat" to see the effective RAM

- then Get a price from IBM

AME is purchased per server

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AIX in Focus Playlist on YouTube

Cutting edge new feature of AIX “XIVE” = eXternal Interrupt Vector Engine• Reduces interrupt overheads for virtualised servers to target

the correct VM & virtual processor• Uses less CPU especially on busy IO intensive workloads

YouTube https://youtu.be/ImUnVq0cAXEPre-req: POWER9, fw940, AIX 7.2 TL4 sp2 =


AIX in Focus

AIX in Focus

AIX in Focus

AIX in Focus

AIX in Focus

AIX in Focus

AIX in Focus

AIX in Focus

AIX in Focus

AIX in Focus

AIX in Focus

AIX in Focus

AIX in Focus

Soon

Soon

Own Series

Own Series

Own Series

Own Series

Own Series

HW Series

HW Series

HW Series

AIX in Focus

AIX in Focus

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Machine Failure in my computer room!!


Returning temp of Zero

Fell off Network

Effect of outside airtemperature rising to 32C

Raspberry Pi 3

MicroSD card

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ReliabilityAvailabilityServiceability

Why am I telling you this?

A good reminder:

RAS is only important,

when you hit a failure

then it is absolutely vital

Raspberry Pi RAS nothing like POWER RAS

but then it only costs 50€$£


Ansible for AIXOn the AIX Open Source Toolbox- Open Source version – doh! [CLI based Engine]IBM just released LOTS of AIX and VIOS Playbooks

If you want Enterprise Class RedHat Ansible [Engine] with certified Playbooks- Runs on RHEL- - but can control AIX

Red Hat Ansible Tower (full browser based GUI) is available too

Open source version of Ansible Tower called AWX is available on POWER8/POWER9- But on RHEL 7 or RHEL8 on POWER- From Power Dev-Ops friends- https://www.power-devops.com/- https://www.power-devops.com/ansible-awx

New

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POWER9 server arrive in Max Performance mode except the S914This is a default mode for all S9xx, E950 and E980 servers

$ lparstat -E 1 3

System configuration: type=Shared mode=Uncapped smt=8 lcpu=8 mem=8192MB ent=0.50 Power=Dynamic-Performance

Physical Processor Utilisation:

--------Actual-------- ------Normalised------user sys wait idle freq user sys wait idle ---- ---- ---- ---- --------- ---- ---- ---- ----

0.000 0.001 0.000 0.499 3.9GHz[119%] 0.000 0.001 0.000 0.498 0.000 0.001 0.000 0.499 3.9GHz[119%] 0.000 0.001 0.000 0.499 0.000 0.001 0.000 0.499 3.9GHz[119%] 0.000 0.001 0.000 0.499 $

lparstat reporting Dynamic Perf mode is a known bug in lparstat and (I think a couple of other).So Dynamic Performance mode = Max Performance mode on POWER9.

Don’t Panic!

POWER9 Max == Dynamic


Support Dates and Versions

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AIX 5.3 no

AIX 6.1 no or moving off soon [performance limited: SMT=4]

AIX 6.1 standard support stopped April 2017at an additional fee Extended Support ends April 2020at an additional fee Extended Support on

POWER7 ends Sept 2020 ( 2 months)POWER7+ ends Dec 2021 (17 months)POWER8 ends April 2022 (21 months)

AIX 7.1 TL5 only - latest is sp6Extended support costs start next year

AIX 7.2 TL2(until Oct 2020), TL3 or TL4sp5 sp4 sp2

Ple

ase

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nIn Nigel’s Opinion 2020


VIOS 2.2.* = AIX 6 based1 End-of-standard Support ~November 20202 Extended Support fee from then on (for ~18 months)

Upgrade to 3.1.<latest>1 Upgrade Best Practice web page2 https://ibm.com/support/pages/upgrading-vios-31

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In Nigel’s Opinion 2020

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VIOS 2.2.* = AIX 6 based1 End-of-standard Support ~November 20202 Extended Support fee from then on (for ~18 months)


Ple

ase

Ru

nIn Nigel’s Opinion 2020


VIOS 2.2.* = AIX 6 based1 End-of-standard Support ~September 20202 Extended Support fee from then on (for ~18 months)


I am available! To AIX User Meeting members= via a Webex or Zoom to discuss your needs & plansP

lea

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VIOS 2.2.* = AIX 6 based

7 weeks to upgrade or negotiate Extended support

Letting your VIOS go unsupported - might cost you your job !!!

I am available to AIX User Meeting members= via a Webex or Zoom to discuss your needs

or sanity check your plans- [email protected]

lea

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Interesting Topics

nmon : Can we break out four Oracle Instances in the graphs?

https://www.ibm.com/support/pages/nmon-can-we-break-out-four-oracle-instances-graphs

nmon with -T Top Processes and Process Arguments (UARG)

Default all processes of the same name totalled “oracle”

Using nmonchart:

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Interesting Topics

nmon : Can we break out four Oracle Instances in the graphs?

Get the Oracle Instance ID from the UARG and add it to the Top Process stats “oracle” “oracle_payroll” regraph


AIX User Meeting 2

Interesting information sources

Me

1. My njmon project: http://tinyurl.com/njmon2. Twitter: @mr_nmon

3. YouTube: http://www.youtube.com/nigelargriffiths

4. LinkedIn: https://www.linkedin.com/in/nigel-griffiths

5. AIXpert Blog: https://ibm.biz/AIXpertBlog

6. User Groups:https://ibm.biz/PowerVUG and http://ibm.biz/powersystemsvug

7. Gareth Twitter: @power_gaz8. Gareth LinkedIn: https://www.linkedin.com/in/gareth-coates-3b58a1144

No Change

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AIX User Meeting 2 UPDATE

Can you help? PLEASE!

Older Open Source RPM packages don’t mix with the new AIX Toolbox RPMS

1. Been told stop workloads

2. Remove all the older RPMs completely

3. Add Yum from the official YUM Bundle

4. Add the RPMs you removed but only from the AIX Toolbox

5. Life is good

Exposes underlying hard mistakes!

Still working on this – update next time


AIX User Meeting 1

Fun facts or favourite features!

AIX has a rmss command – Reduced Memory Size Simulator

usage: rmss [-s startmemsize] [-f finalmemsize] [-d deltamemsize][-n numiterations] [-o outputfile] command

rmss -c memsize

rmss -r

rmss -p

Note that the rmss command is incompatible with the AIX DLPAR

component, and its usage may result in a hung system. The drmgr command provides a safe memory removal function in a

DLPAR environment.

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Questions: How to raise AIX’s profile in 2020?

How to explain all the brilliant features of AIX to newbies?

How to remind the “old guys” who take a lot for granted!


the best Operating System in the World

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End of Message- Thank you for your time

This was an experiment!- Worth Repeating?

Feedback + ideas welcome:[email protected] or @mr_nmonor LinkedIn:https://www.linkedin.com/in/nigel-griffiths

Volunteer speakers: 5 to 10 minutes!

Next meeting:

7th September 2020

At 4:30 pm BST today

njmon & nmon Meeting

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