Hi Stefan,

IBM is still evaluating this. Once there is something to share, I will 
post it.


Del

----------------------------------------------------

"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 01/23/2018 
02:29:17 AM:

> From: Stefan Folkerts <stefan.folkerts AT GMAIL DOT COM>
> To: ADSM-L AT VM.MARIST DOT EDU
> Date: 01/23/2018 02:30 AM
> Subject: Spectre & Meltdown patching in relation to Spectrum Protect
> Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
> 
> Hi,
> 
> Has anybody seen any information from IBM in relation to Spectre & 
Meltdown
> patching for Spectrum Protect servers?
> We have a customer who has found that systems that do lot's of small 
IO's
> that performance can drop 50% on intel systems, these were seen with
> synthetic benchmarks, not actual load.
> 
> So this was certainly not a Spectrum Protect load but I was thinking 
that
> Spectrum Protect might fall into the category that can experience some 
sort
> of performance drop when patched for Spectre and Meltdown.
> 
> Does anybody know what is the impact of these patches on Spectrum 
Protect
> systems?
> 
> Will the blueprints need to be adjusted for instance or is there some
> percentage of lower performance we should expect after patching and does 
it
> vary per platform?
> 
> Regards,
>    Stefan
>