HMC, vhmc, Live Partition Mobility

Transcription

1 HMC, vhmc, Live Partition Mobility Luc Cloutier Frédéric Marcil Charts from : Linda Flanders, IBM USA SSE Delivery and Development Program Manager Gareth Coates, IBM UK EMEA Technical Lead and Product Introduction: Power Systems S. Ashok, IBM Austin Cognitive Systems Management 2014 IBM Corporation

2 Contents Part I : HMC/vHMC/Enhanced GUI PART II : Live Partition Mobility 2

3 Introduction Do you use an HMC? Lots of them? Many sessions about HMCs and how to do things with them Reflects on some of the options EG: when to use physical or virtual 3

4 What is the HMC for? Control/manage/monitor POWER Servers Deploy power servers Deploy LPARs Deploy VIOS DHCP for FSP Callhome 4

5 What hardware should I use? Intel based 7042-CR9 Power based 7063-CR1 Virtualised Intel server Virtualised POWER8 server If so, where/on what? You can probably guess what we will advise, but let s look at it.. 5

6 7042-CR9 HMC Details For POWER6 and later servers 7042-CR9 --- follow-on to 7042-CR8 Normal technology refresh Similar price to CR8 Refreshed rack-mounted HMC 2.4GHz Intel Xeon Processor 16GB to 192GB memory (#EM20 16GB feature code) Most clients expected to use 16GB or 32GB for HMC One or optionally two 500GB SATA disk drives Second drive allows RAID1 mirroring protection (recommended/defaulted) Support any two of the eight physical hot-plug SFF bays (max 2 supported) DVD-RAM Four integrated Ethernet ports Six USB ports One PCIe slot One or two power supplies (two recommended for hot-plug redundancy) 1U (1 EIA) Like CR8, does not offer an internal or external modem (or support one) HMC code level or later 1U (1EA) rails included with CR9 (no separate feature code) 6

7 HMC 7063-CR1 GA 4Q CR1 is based on System S821LC Fixed Config 6 POWER8 cores with SMT8 32GB RAM 2 HDD Fits round holes and square holes Massive concurrency Simple to install, remotely start/stop using BMC + ipmitool + web UI GA with HMC V8.870: 4Q CR1 has a lower list price than 7042-CR9 7

8 HMC Virtual Appliance Details. IBM Virtual HMC Complete Software offering License plus software maintenance PID 5765-HMV Approximately $4k CDN including 1 year SW maint Virtual HMC Runs On x86 Hardware (provided by client) x86 64-bit with Intel VT-x or AMD-V 4 CPU, 8 GB memory, 160GB disk (500GB recommended), 2 NIC Under KVM or VMware virtualization (provided by client) New vhmc Complete Software offering Activation engine provides configuration on first boot Accept License, locale, network, SSH, NTP Manages any POWER6 or later Power servers Version 8 HMC firmware Can be used with or without hardware HMCs 8

9 POWER8 virtual HMC POWER8 virtual HMC like the Intel vhmc Runs in a PowerVM LPAR on a POWER8 server No, it will not run on a POWER7 processor Yes, it will manage a POWER7 based server Obviously, you can t manage the server its actually running on! Note: not KVM, XEN, Vmware 9

10 Can I use both Intel and POWER8 HMCs YES A server can be managed by 2 HMCs Any combination of Intel/POWER Any combination of hardware appliance/software appliance Do not think about using a vhmc in a PowerVM LPAR on a server which the HMC manages Allowed this time only one HMC at one HMC at 870 Normally both HMC must be at exactly the same level 10

11 HMC V8R870 No Classic GUI Enhanced+ GUI has all functionality that was in Classic Runs on Intel or POWER8 Manages POWER6 POWER7 POWER8 HMC V8 will not manage POWER9 based servers So use the Enhanced+ GUI now 11

12 I want to use the Classic GUI You can But only up to HMC V8 R860 Support continues till end of 2018 Then the only supported GUI will be Enhanced+ HMC V8 will not manage POWER9 based servers 12

13 Classic vs Enhanced Terminology & Menus HMC Classic Interface Create Partition HMC Enhanced UI Interface Templates (Resources > All Systems > Server > View System Properties > System Actions > Templates) Partition Properties, DLPAR Manage Partition (Resources > All Systems > Server > Partition > * (Properties/Processors/Memory/Physical IO/Virtual Storage/Virtual Networks/Virtual NICs) Server > Configuration > Virtual Resources Resources > All Systems > Server > PowerVM Server > Hardware Information > Adapters Resources > All Systems > Server > PowerVM > Hardware Virtualized I/O Server > Performance Server > Properties Partition > Configuration > Manage Profiles Resources > All Systems > Server > View System Properties > Capacity > Performance Dashboard Resources > All Systems > Server > View System Properties Resources > All Systems > Server > Partition > Partition Actions > Profiles 13

14 Navigating through Enhanced UI Launch Page Gallery View Resource Path Gallery, Table & Relational Views Global Search (Search across all resources) Pin the page Quick Filter (Filter by fields of specific resource) Pins Like Shortcuts/Bookmarks Tool Bar Task Log 14

15 Navigating through Enhanced UI My counterpart in the UK, Nigel Griffiths, has done a really nice job covering this in a 10 part series. 15

16 PART II Live Partition Mobility 16

17 LPM Benefits Simplify server upgrades with no down time - Move running partitions to newer servers Better system utilization - Quickly balance workloads and resources as needs change Improved application availability - Eliminate downtime for planned system maintenance Energy savings - Consolidate workloads to fewer servers when possible and turn off idle systems While LPM improves system availability, it is not a solution for unplanned outages. Continue using high availability solutions. 17

18 PowerVM Live Partition Mobility VIOS AIX PowerVM Hypervisor Red Hat Linux IBM i VIOS 4GB 4GB 4GB 4GB 4GB Storage Storage Red Hat Linux PowerVM Hypervisor What is LPM? Relocate an entire LPAR between physical chassis Requires POWER6 or better LPARs continue to run and provide services to clients, who are completely unaware of the migration Final suspension and resumption of LPAR is guaranteed to be less than 2 seconds Ethernet 18

19 Migration: active or inactive Active migration: partition migration is performed with the operating system and applications running, without disrupting operations Inactive migration: partition is not running when it is moved to the target system Active Validate configuration Create new LPAR Create new virtual resources Migrate state of LPAR in memory Remove old LPAR configuration Free up old resources Summary of Migration Phases Inactive Validate configuration Create new LPAR Create new virtual resources Remove old LPAR configuration Free up old resources 19

20 Mobile partition requirements checklist (1 of 2) Check mobile partition configuration: Operating system support Functioning RMC daemons No huge memory pages* No Barrier Synchronization Register arrays* (BSR) No workload group No redundant error reporting* No open consoles (warning only) Storage on external storage unit and accessible by both VIOS LPARs Check that LPAR name will be unique on destination server * Okay for inactive migrations 20

21 Mobile partition requirements checklist (2 of 2) Check mobile partition configuration (cont.): Check MAC address will be unique on destination server Not a service partition No physical I/O* No logical ports configuration on Integrated Virtual Ethernet (IVE)/Host Ethernet Adapter or SR-IOV (unless using vnic) AIX (or higher) clients can convert LHEA to virtual Ethernet during migration Verify valid processor compatibility mode Virtual network configuration compatible with destination VIOS * Okay for inactive migrations 21

22 Client operating system support Minimum supported AIX partition operating systems: AIX 5.3 TL07 AIX 6.1 TL02 with SP08 Minimum supported Linux partition operating systems: Red Hat Enterprise Linux version 5 Update 1 SUSE Linux Enterprise Server 10 Service Pack 1 Linux operating systems must install RPMs for DLPAR Minimum supported IBM i: IBM i version IBM i 7.1 TR4 or higher HMC version 7 release 7.5 or higher or FSM Server firmware levels: 730_51 or later, 740_40 or later VIOS

23 Physical I/O Partition properties should show no physical I/O adapters Classic Example Nothing to see here Enh+ Example 23

24 LPM migration operation (1 of 2) Run either the Migrate task (Wizard) or Validate task (one panel): HMC Enhanced+ Example For HMC Classic GUI, select partition and run Operations -> Mobility - > Migrate (or Validate) 24

25 LPM migration operation (2 of 2) Validate task provides one panel validation and migration New Redundant MSP option if using newer code 25

26 PowerVM LPM and Simplified Remote Restart Automation Tool (1 of 3) IBM Lab Services GUI for managing migrations POWER7 and POWER8 migrations Linux, AIX, and Windows versions Browser-based with reduced clicks! The tool version numbering now matches the features of the highest HMC version it can exploit In use since 2014 Download from Resource Link, unzip, add your HMC, and it discovers your servers and LPARs Need to contract with Lab Services Uses SSH to direct HMCs to do migrations 26

27 PowerVM LPM and Simplified Remote Restart Automation Tool (2 of 3) LPM tool features: Evacuate a server to one or multiple servers Move groups of partitions Can Pack or Stripe LPARs to destination servers Maintain concept of original server for mobile partitions Create migration plans and deploy plans during service windows Export validation details to a spreadsheet Many GUI features only available on HMC command line: vswitch, vnic, NPIV LUN validation, SR-IOV, concurrency levels, etc. Easy to maintain virtual adapter IDs and FC port ID assignments SRR tool features: In case of server outage, restart its LPARs on a remote server Configuration details of the LPAR is kept on disk to quickly get it running on remote server After downed server is up and running, a few clicks will get original LPARs migrated back with LPM Without automation tool, SRR is available only on HMC CLI 27

28 PowerVM LPM and Simplified Remote Restart Automation Tool (3 of 3) LPARS Eight migrating LPARs in progress Use tool s config.properties file for specific instructions - Example line that adds --requirerr 2 to migrlpar : com.ibm.lbs.asset.hmc850.migrlpar.append.minus.minus.requirerr 2 28

29 LPM Resources Take the full three day LPM Course: IBM customer training course via training partners AN33G: IBMers and BPs with education vouchers: //ibm.biz/ibm-sse IBM Lab Services consulting and custom training Redbooks and Hardware Information Center: IBM PowerVM Live Partition Mobility SG IBM PowerVM Virtualization Managing and Monitoring SG LPM user guide includes IBM i information: Developerworks movie: tinyurl.com/newaixmovies 29

30 Merci! Pour plus de renseignements ou pour planifier une rencontre, contactez l équipe R2i. info@r2i.ca , poste 100

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