Re: IFL performance reference

[Mrohs, Ray (JMD)]

Thanks.

The raw PCI numbers on the charts and graphs suggest a 3-fold performance 
increase over a z10 BC. However with onboard JIT optimization and hardware 
multithreading, the z13 could show a 10x improvement with Java workloads.

Ray Mrohs  

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Porowski, 
Ken
Sent: Tuesday, February 02, 2016 10:43 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: IFL performance reference

LSPR, look at the uni-processor PCI/MIPs



CIT | Ken Porowski | VP Mainframe Engineering | Information Technology | +1 973 
740 5459 (tel) | ken.porow...@cit.com




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-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Mrohs, 
Ray (JMD)
Sent: Tuesday, February 02, 2016 10:24 AM
To: LINUX-390@VM.MARIST.EDU
Subject: [LINUX-390] IFL performance reference

Does anyone have a chart that shows relative performance improvements of IFL 
processors on a z13 compared to previous mainframes, back to z10?
Thanks for any help.


Ray Mrohs
Lockheed Martin Corporation
Service Delivery Staff
Infrastructure Operations
ray.mr...@usdoj.gov
202 307-6896

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Using solid state drives with Linux guests

[Martha McConaghy]

Has anyone had experience using solid state drives (SSD) with a zLinux guest
running under z/VM 6.3?  We recently got a DS8870 that has quite a few SSDs.
However, I haven't done anything with them yet.  I would guess that I just
configure arrays on them like normal disks, make them FB, create a LUN on them
and then connect the LUN to the Linux guest like any SAN LUN.

Is there anything special I should be aware of before jumping in?

Martha

System Architect/Technical Lead
Marist College

SHARE San Antonio - Feb 28-March 4, 2016

Hope to see y'all there!

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Re: Using solid state drives with Linux guests

[Kurt Acker]

David Simpson presented this material at last years Oracle SIG conference: 

http://www.oraclezsig.org/2015presentations/THU_1045_2015_Simpson_IO_V3.pdf 

- That event will be held on April 26 and 27th this year:  
http://www.oraclezsig.org/ 

Bill Bitner has also presented on its very positive effects to paging:
http://www.vm.ibm.com/devpages/bitner/presentations/pagflash.pdf 

I have not heard of any "gotchas" with regards to set up or usage. 
Hopefully some customers will chime in as I know more then a few have been 
using it,

Kurt Acker 
Cell: 607-348-8197 
IBM Smarter Planet, Smarter Data Centers 
Virtualization and Enterprise System Management Technologies



From:   Martha McConaghy 
To: LINUX-390@VM.MARIST.EDU
Date:   02/05/2016 12:10 PM
Subject:Using solid state drives with Linux guests
Sent by:Linux on 390 Port 



Has anyone had experience using solid state drives (SSD) with a zLinux 
guest
running under z/VM 6.3?  We recently got a DS8870 that has quite a few 
SSDs.
However, I haven't done anything with them yet.  I would guess that I just
configure arrays on them like normal disks, make them FB, create a LUN on 
them
and then connect the LUN to the Linux guest like any SAN LUN.

Is there anything special I should be aware of before jumping in?

Martha

System Architect/Technical Lead
Marist College

SHARE San Antonio - Feb 28-March 4, 2016

Hope to see y'all there!

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For LINUX-390 subscribe / signoff / archive access instructions,
send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or 
visit
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For more information on Linux on System z, visit
http://wiki.linuxvm.org/






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2016-02-02 Linux on z Systems - Kernel 4.3 related updates on developerWorks

[Gerhard Hiller]

Please refer to 
http://www.ibm.com/developerworks/linux/linux390/whatsnew.html
for several updates to the 'Development stream':
 * description of upstream kernel 4.3 features that were
   contributed by Linux on z Systems development
 * kernel 4.3 patch for kernel message catalog
 * s390-tools 1.32.1 delivers a bug fix
* end of message


Mit freundlichen Grüßen / Kind regards








Gerhard Hiller


 














Software Management and Linux Technologies


IBM Systems








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