RE: LIC MITIGATE SPECTRE AND MELTDOWN VULNERABILITY

Hi Paul:

We have both the firmware and last weeks latest IBMi spectre/meltdown
PTF's installed across all 9 of our production lpars without any issues
what so ever.

Performance has been unaltered and has been very stable.

Jim

Jim W Grant
Senior VP, Chief Information Officer
Web: www.pdpgroupinc.com
Email: JWGrant@xxxxxxxxxxxxxxx




From: "Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>
To: "'Midrange Systems Technical Discussion'"
<midrange-l@xxxxxxxxxxxx>
Date: 02/07/2018 03:57 PM
Subject: RE: LIC MITIGATE SPECTRE AND MELTDOWN VULNERABILITY
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



Jim,

Any update on your firmware and PTFs.

I've just downloaded firmware for P7 8205-E6C, AL740_165_042 / FW740.C1,
released yesterday, 2/6/18.

I have a
V7R1 Production LPAR (upgrade scheduled within a month)
V7R3 R&D LPAR

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
JWGrant@xxxxxxxxxxxxxxx
Sent: Friday, January 19, 2018 5:37 PM
To: Midrange Systems Technical Discussion
Subject: Re: LIC MITIGATE SPECTRE AND MELTDOWN VULNERABILITY

I have got the 7.3 PTF Installed (on most of our LPARS) but have not
installed the firmware on our P7+.
Firmware is scheduled for tomorrow afternoon.

We saw a bit of overhead on our development lpar with the PTF installed
but only have 1 day of performance data to compare. Again the firmware has
not been upgraded yet.

Developers did not notice any slow down.

ASP 1 Stg ASP 1 Interactive Avg Batch CPU
Date Day in GB % used Transactions resp jobs hours
18/01/18 Thu 1,592.001 23.96 22,817 .087 2,228 .64

<====AFTER
18/01/17 Wed 1,592.001 23.81 19,786 .053 2,307 2.15

<====BEFORE PTF

Jim

Jim W Grant
Senior VP, Chief Information Officer




From: "Buck Calabro" <kc2hiz@xxxxxxxxx>
To: midrange-l@xxxxxxxxxxxx
Date: 01/19/2018 03:28 PM
Subject: Re: LIC MITIGATE SPECTRE AND MELTDOWN VULNERABILITY
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



On 1/11/2018 1:25 PM, Bryan Dietz wrote:

I have concerns around potential performance impacts.

I installed the firmware on my P8 the day after it was released.
I was quite up to date, so it was concurrent (no IPL).
I have not seen any performance degradation.
Mostly I/O bound; relatively little CPU workload.

I have not installed the PTF yet; I need another availability window so
I can IPL the machine. I'm wondering if that is where the performance
hit will come.