IBM Systems Technical Symposium Melbourne, 2015
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The 2015 IBM Systems Technical Symposium in Melbourne focused on IBM Z Systems, Power Systems, and Red Hat Enterprise Linux updates. It featured topics like the collaboration between Red Hat and IBM, enhancements in JBoss BRMS for decision services, and new features in RHEL 7.1 tailored for Z and Power systems. Key discussions included the benefits of running Linux on IBM Power Architecture, including scalability, flexibility, and integration opportunities for various industries.
IBM Systems Technical Symposium Melbourne, 2015
- 1. Systems Technical Symposium 2015 August 25 - 28 | Melbourne, Australia Featuring IBM z Systems, IBM Power Systems and IBM System Storage Red Hat Enterprise Linux Update IBM z Systems and Power Systems Filipe Miranda <fmiranda@redhat.com> Global Technical Lead for Linux on IBM z Systems and Power Systems Red Hat, Inc. © Copyright IBM Corporation 2015 © Copyright Red Hat Inc 2015 Technical University/Symposia materials may not be reproduced in whole or in part without the prior written permission of IBM.
- 2. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Session topics Red Hat in a Nutshell Open Source Development Model JBoss EAP and BRMS for RHEL on z System and Power Systems Red Hat and IBM Collaboration Red Hat Enterprise Linux for z Systems RHEL 7.1 z Systems Features Summary Automated LUN Scanning CPACF Exploitation IBM Redbooks Publications RHEL 7.1 for Power Systems RHEL LE RHEV for Power
- 3. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 RED HAT STORAGE SERVER RELEASED FIRST RELEASE OF ENTERPRISE LINUX OPENSHIFT ENTERPRISE RELEASED CLOUDFORMS & OPENSHIFT RELEASED RED HAT ENTERPRISEVIRTUALIZATION RELEASED RED HAT ADDEDTO S&P 500 INDEX 1993 1999 2002 2006 2011 FOUNDED IPO JBOSS ACQUIRED 20122009 $1 BILLION IN REVENUE 2013 RHEL OPENSTACK PLATFORM RELEASED 2014 CENTOS JOINS RED HAT INKTANK (CEPH), ENOVANCE (OPENSTACK) & FEEDHENRY ACQUIRED 8 Red Hat in a Nutshell
- 4. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Business Development Model
- 5. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 (II) https://access.redhat.com/site/articles/111663 Red Hat JBoss EAP and Red Hat BRMS adding Value to your solution (II) Take advantage of the IBM JDK optimized on Red Hat Enterprise Linux for IBM z Systems and Power Systems (1) http://www-03.ibm.com/systems/z/os/ linux/resources/testedplatforms.html JBoss Middleware
- 6. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 What is Red Hat JBoss BRMS? Red Hat® JBoss® BRMS is a comprehensive platform for business rules management, business resource optimization, and complex event processing (CEP). https://www.redhat.com/en/technologies/jboss-middleware/business-rules • Deploy decision services across physical, virtual, and cloud environments. • Improve business agility. • Make consistent and efficient decisions. • Quickly build resource optimization solutions. • Shorten development cycles for faster time to market. JBoss BRMS on RHEL for z Systems
- 7. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Red Hat Enterprise Linux Lifecycle
- 8. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Photo Michael Storze https://access.redhat.com/ecosystem/search/#/category/Server IBM & Red Hat Relationship
- 9. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 IBM & Red Hat Relationship
- 10. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 IBM & Red Hat Relationship IBM Power E850 High end servers IBM Power E870 Up 80 POWER8 cores IBM Power E880 Up 192 POWER8 cores Up 48 POWER8 cores
- 11. Red Hat Enterprise Linux on z Systems
- 12. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 - Production Ready - z Systems z Systems z Systems z Systems RHEL 7.1 z Systems Specific Features Summary
- 13. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 1 .Unblock the devices # cio_ignore -r fc00 # cio_ignore -r fd00 2 .Enable the devices # chccwdev -e fc00 # chccwdev -e fd00 3. LUN already detected on all paths # lsluns Scanning for LUNs on adapter 0.0.fc00 at port 0x500507630500c74c: 0x4010401700000000 at port 0x50050763050bc74c: 0x4010401700000000 Scanning for LUNs on adapter 0.0.fd00 at port 0x500507630510c74c: 0x4010401700000000 at port 0x50050763051bc74c: 0x4010401700000000 Example on how simple it is to work with FCP devices: Automated LUN Scanning (NPIV)
- 14. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 4. Enable multipath: # cp /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf /etc/multipath.conf # systemctl start multipathd # systemctl enable multipathd # multipath -ll mpatha (36005076305ffc74c0000000000001017) dm-2 IBM size=10G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='service-time 0' prio=1 status=active |- 0:0:0:1075265552 sda 8:0 active ready running |- 0:0:1:1075265552 sdb 8:16 active ready running |- 1:0:0:1075265552 sdc 8:32 active ready running `- 1:0:1:1075265552 sdd 8:48 active ready running 5. Make the FCP devices persistent: # lszfcp -D | awk '{ print $1 }' | sed -e 's/// /g' >> /etc/zfcp.conf 6. Partition the multipath device: # parted -s /dev/mapper/mpatha mklabel msdos mkpart primary 0% 100% Multipath
- 15. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 - Production Ready - Driver tolerance for Crypto Express 5S• Support for Crypto Express4S • Tolerance for Crypto Express5S - Production Ready - • CP Assist for Cryptographic Function (CPACF) RHEL 7.1 z Systems Specific Features Summary
- 16. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 CPACF Exploitation Example
- 17. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 CPACF Exploitation Example
- 18. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 CPACF Exploitation Example
- 19. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 CPACF Exploitation Example
- 20. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 … CPACF Exploitation Example
- 21. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 - Production Ready - - Production Ready - - Production Ready - - Production Ready - - Production Ready - z Systems z Systems z Systems z Systems RHEL 7.1 z Systems Specific Features Summary
- 22. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 http://www.redbooks.ibm.com 2013 2015 Publications IBM Redbooks
- 23. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 systemd is a system and services manager that replaced upstart in RHEL. systemd is the first user space process the kernel starts when booting. This process is responsible for starting all the services and their dependencies that allow the system to act as a server. systemd uses units that can be dependent on other units. There are different unit types such as: • Service units, used to start services • Socket units, which allow socket based activations • ︎ Device units, which trigger reactions for devices as they appear or disappear • Mount point units, that control mount points • Target units, which allow grouping of units to act as synchronization points systemd Overview
- 24. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 systemd Script Example
- 25. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 systemd Script vs SystemV
- 26. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 List active service units (running services): List failed service units: # systemctl -t service --state=failed Managing Services using systemd
- 27. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Query the status of a service unit: systemd Commands
- 28. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Stop, start, and restart a service unit: # systemctl stop vsftpd.service # systemctl start vsftpd.service # systemctl restart vsftpd.service You can also omit the suffix and specify multiple units: # systemctl restart vsftpd sshd # systemctl reload sshd Reload a service unit Not all services support that systemd Commands
- 29. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 List installed service units: # systemctl list-unit-files -t service List enabled service units: Disable a service: # systemctl disable vsftpd Query the default target the system boots into: # systemctl get-default Switch to a target: # systemctl isolate multi-user.target systemd Commands
- 30. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 systemd/SysV Table
- 31. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Loading System Targets IPL your Linux server from the 3270 console using the following commands: In rescue.target mode, all of the file systems in /etc/fstab are mounted, but networking has not been started.
- 32. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Load System Targets - FCP To enter a different systemd target, from the IPL command just type the target you want in the systemd.unit= parameter. For example, to enter the emergency.target, use the following commands:
- 33. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Load System Targets with ECKD/EDEV To load systemd targets from the IPL command when using DASD ECKD/FBA use the following commands from the 3270 terminal: ===> ipl 100 PARM systemd.unit=rescue 00: zIPL v1.23.0-17.el7 interactive boot menu 00: 00: 0. default (linux) 00: 00: 1. linux 00: 00: Note:VM users please use '#cp vi vmsg <input>' 00: 00: Please choose (default will boot in 5 seconds): 00: Booting default (linux)... 00: Uncompressing Linux... ... Welcome to rescue mode!Type "systemctl default" or ^D to enter default mode. Type "journalctl -xb" to view system logs.Type "systemctl reboot" to reboot. Give root password for maintenance (or type Control-D to continue):
- 34. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 systemd Journal The journal is part of systemd and provides a modern logging mechanism. It allows to capture Kernel log messages, regular syslog messages, the stdout/stderr written by services, and messages from the early boot stages. Viewing the journal
- 35. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Filtering systemd Journal Filtering the journal Show the log messages of the current boot (filters out the messages from previous boots): # journalctl -b Show today’s log messages: # journalctl --since today Show kernel messages of the current boot only: # journalctl -b -k Only show errors: # journalctl -p err Show the log messages of a specific unit (like the sshd.service unit): # journalctl -u sshd.service
- 36. Red Hat Enterprise Linux on Power Systems
- 37. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Raw performance: You may be running a large Linux server farm but not getting satisfactory performance. You may need massive horsepower, and your application might not work well with a clustering of PCs. Virtualization robustness You may want the maximum flexibility you can have to share unused resources, allocate and logically partition your servers. Leveraging existing resources: You may already have a large staff of Linux support personnel.You've fallen in love with the Power Systems platform for all of the reasons mentioned so far and don't want to invest the money in retraining your staff on UNIX. Datacenter consolidation: Sometimes, it seems every large company over the past several years has performed a server consolidation of some kind. Etc… Why Run Linux on IBM Power Systems?
- 38. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 The bottom line is, by combining the flexibility and cost savings of Linux with the scalability and robustness of the POWER platform, customers across all industries can integrate their environments using Linux on POWER to reduce costs and consolidate workloads. Why Run Linux on Power Systems?
- 39. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 "The enhancements to the world’s leading enterprise Linux platform offered by Red Hat Enterprise Linux 7.1, as well as the new offerings based on the update, deliver a flexible, reliable, secure and performant platform that works across nearly every industry use case, from container adoption and rapid application development to time-sensitive trading applications and systems based on IBM Power Systems architecture. JIM TOTTONVICE PRESIDENT AND GENERAL MANAGER, PLATFORMS BUSINESS UNIT, RED HAT Red Hat brings RHEL LE to Power Systems
- 40. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 The terms endian and endianness refer to the convention used to interpret the data when are stored in the computer's memory. When reading or writing data, into memory, the order of the bytes stored in memory determines the interpretation of the data. Big-endian systems store the most significant byte in the smallest address and the least significant byte is stored in the largest address Little-endian systems, in contrast, store the least significant byte in the smallest address. What is endian ?
- 41. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 6.5 BE 6.6 BE 7.0 BE 7.1 BE/LE 7.2 BE/LE 6.7 BE 5.11 BE 5.12+ BE Only Linux vendor to offer both BE/LE with the NEWEST Linux Major Release
- 42. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Red Hat Enterprise Linux 7.1 offers both options little endian and big endian versions. Running little endian mode accelerates business application innovation by eliminating a significant and outdated barrier to application portability and allowing customers with the latest IBM Power Systems to leverage the significant existing ecosystem of Linux applications previously developed and restricted to x86 architectures. Red Hat Enterprise Linux 7.1 little endian enables simple data migration, simplifies data sharing (interoperability) with Linux on x86, and improves I/O options with modern I/O adapters and devices, e.g. GPUs. Why Red Hat Enterprise Linux little endian?
- 43. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 High end servers IBM Power Hardware IBM PowerVM Red Hat Enterprise Linux 6.5+ Guests Red Hat Enterprise Linux 7+ Guests IBM PowerVM IBM Power E850 IBM Power E870 Up 80 POWER8 cores IBM Power E880 Up 192 POWER8 cores Up 48 POWER8 cores
- 44. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 IBM POWER8 Hardware IBM Power Firmware Interface Red Hat EnterpriseVirtualization for IBM Power Red Hat Enterprise Linux 6.5+ Guests Red Hat Enterprise Linux 7+ BE Guests Managed by RHEV-M on x86 Red Hat Enterprise Linux 7.1+ LE Guests Red Hat EnterpriseVirtualization (RHEV)
- 45. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Target Linux-only Servers
- 46. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 RHEV GUI -VM Overview
- 47. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 RHEV GUI - NewVM Menu
- 48. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 RHEV GUI -VM Console Access
- 49. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 • Coexist with RHEV environments for x86: Simply add Power Systems with Linux guests to the current x86 environment and take advantage of a single graphical console to manage both distributed systems and Power Systems. • Open SourceTechnology: Using RHEV for Power will allow customers to benefit from the KVM virtualization technology without having to learn another hypervisor (IBM PowerVM) when managing Linux guests. • Readily available staff with KVM knowledge versus PowerVM • By using RHEV for Power, or simply RHEV - you can integrate your environment with other products from Red Hat, such as Cloudforms, to manage Linux cloud environments. RHEV for Power Advantages
- 50. IBM 2015 Systems Technical Symposium© Copyright Red Hat Inc 2015 Filipe Miranda <fmiranda@redhat.com> Global Lead for Red Hat Products on IBM z Systems and Power Systems Red Hat, Inc.