External storage for IBM Power i. June 14 th 2016

Transcription

1 External storage for IBM Power i June 14 th 2016 Tore Thon Server & Storage Expert Pedab Ole Kristian Myklebust IBM Lab Services Consultant

2 PEDAB group history 1. Established 1964 by Bartholdson 2. Originally a Mainframe hosting company 3. Established Pulsen AB 1985 System Integrator and Reseller, always «true blue» 4. Established Pedab AB 1993 VAD for IBM 5. Adopted Lenovo after IBM sell out Annual revenue Pedab Group 2015 approximate MUSD ,00 7. Represented in all the Nordic countries, the Baltics and France employees in Pedab Group

3 Agenda IBM Power from propriatary machines to open systems The magic of VIOS Virtual I/O Servers Performance basics Why external disk IBM SAN Volume Controller an introduction IBM Flash Systems an introduction Real life measurement before/after Flash installation Upgrade your external storage Upgrade your server using external storage Design examples Benefits using external storage for IBM i

4 IBM Power from propriatary machines to open systems The good old days... One OS CPU, memory, disk All in one...like a black box

5 IBM Power from propriatary machines to open systems The middle age... LPAR, one chassis several servers Dedicated CPU, memory disk and OS per logical server...like several black boxes in one chassis

6 IBM Power from propriatary machines to open systems A pool of available resources Modern time... HA failover One chassis, several servers Everything fully virtualized Host V M V M V M Seemless failover Virtual Disk V M V M V M Host...dynamic allocation of resources what you need, when you need it SVC SVC 1 node A LUN1 Flash SSD XIV Seemless failover Seemless failover SVC SVC 1 node B Flash SSD XIV

7 Technology server the magic of VIOS IBM Power and VIOS Dynamically Resizable I/O Adapters Virtual I/O Server Partition Storage Sharing Ethernet Sharing 2 Cores Partition AIX 2 Cores Partition I Prosessor pool DB PROD 16 Cores DB utv DB TEST Virtual I/O Server Partition Storage Sharing Ethernet Sharing I/O Adapters Dynamic allocation of resources Processor-pooling Virtualized I/O Optimized performance per core Virtual I/O paths Power Hypervisor Network Nondisruptive migration between physcal and virtual servers Flash SSD XIV like turning the heat on when it s cold

8 Performance Analyse Basis It s so SLOW

9 Performance Analyse Basis Processor, Cache, Memory and Disk P L1 L2 L3 Memory Disk 1 second 2 seconds 5 seconds 8 seconds 25 seconds 17 days (= x processor responstime)

10 Performance Analyse Basis Processor (CPW, TPM, rperf) Memory (GB) Disk (# Arms and GB) Data

11 Why external disk? High Availability Disaster Recovery Performance Consolidation Virtualization Flexibility Centralized Storage Management 11

12 It s so special! IBM i Storage Architecture single level storage Data is spread across all disks in disk pool (ASP) Enables high performance via parallel I/O Autonomic load balancing Disks fill evenly Designed for ease of use and self-management Newly added disk capacity is utilized automatically No continuous disk performance monitoring Why does this matter when choosing a storage system? Random access patterns Cache unfriendly All-or-nothing copies (full system copy) 12

13 External disk options for IBM i DS8000 Power System Archive ASP IBM i Native nseries 3996 Optical Server (no longer IBM marketed) IA Information Archive NPIV VIOS DS5000 NPIV Native VIOS (virtual) Network XIV Storwize V9000, V7000, and SVC Any supported storage DS

14 IBM SAN Volume Controller an introduction Since 2003 Virtualized disk Controller-pooling Different class I/O-groups Easy and unified server-disk handling (Server-SVC; SVC- Storage) A common set advanced functions for all disk styles and data types Optimized utilization SVC Multipath Driver SAN HDS HP Dynamic allocation of disk Best universal disk functions and administration Non-disruptive migration between physical disksystems IBM Virtual Disk SVC Multipath Driver Virtual Disk SVC Multipath Driver Virtual Disk SVC Multipath Driver Virtual Disk SAN Volume Controller Advanced Copy Services Disk Storage Pool EMC Eliminate stops in case of changes of disk systems and migration One administration console for all disk Easy Tiering between any brand disk like turn on the heat when it s cold

15 Key Virtualization Features all supported with IBM i Thin Provisioning Without thin provisioning, pre-allocated space is reserved whether the application uses it or not Provisioning Real-time Compression Without thin provisioning, pre-allocated space is reserved whether the application uses it or not. Dynamic growth With thin provisioning, applications can grow dynamically, but only consume space they are actually using Dynamic growth With thin provisioning, applications can grow dynamically, but only consume space they are actually using. Satisfy provisioning requests but allocate storage only when data is written Improve capacity utilization across the infrastructure Value: Purchase only the storage you need when you need it Buy and maintain less storage Compress More productive active data use up to of 80% without application available performance storage degradation Value: Across Store all more supported data with host less disk platforms asy IBM Tier Easy SSD Tier Management SSD Management SSDs HDDs SSDs HDDs Hot-spots due to poor data layout. Automatic Relocation Optimized performance and throughput. Busiest Busiest data data automatically extents are moved to highest performing identified Solid-state and automatically Drives Value: relocated Optimized to highest performance at lower overall performing cost Solid-state Disks Remaining data extents can take advantage of higher capacity, price optimized disks r data off-site 15

16 IBM System Storage Easy Tier New generation of smart storage that intelligently adapts to application workloads Smart storage Automated and granular: Automated movement of data based on actual workload performance Flexibility to move 1GB segments or full volumes Virtually no administrative effort: Easy Tier optimizes storage tiering without laborious manual tuning Setup takes 15 minutes and requires only moving a volume into the Easy Tier storage pool 16

17 IBM System Storage Easy Tier Workload learning Applications Performance monitoring and reporting available to track the I/O demand from application and I/O service time from storage device Performance data is collected for multiple durations, hours, days and weeks Virtual Disk Smart Monitoring Solid-state Enterprise - FC / SAS Nearline - SAS / SATA Heatmap and I/O Density Report 17

18 IBM Flash Systems an introduction Performance Focus ns FlashSystem 900 (HGST) us ms sec Capacity Focus

19 Flash Competitive Landscape FlashSystem 900 (HGST) Performance Focus ns FlashSystem V9000 (SanDisk) us ms Storwize sec Capacity Focus

20 Lower latency translates to application efficiency! Servers, Applications and Databases are FASTER! Benefits & economics outweigh disk CPU Utilization & App. Efficiency 4% CPU Utilization & App. Efficiency 50% Total Application Processing Time 400µs (.4ms) Total Application Processing Time 5,200µs (5.2ms) No application Or architecture Changes Reduce floor space, power & cooling 5,000µs (5ms) 200µs (.2ms) Disk/Hybrid/SSD Increased CPU equals more work for less money! IBM FlashSystem 200µs (.2ms)

21 Before and after Flash

22 Before After

23 HDD versus SSD HDD ranks SSD ranks 23

24 Customer example Internal disk GB HDDs mirrored and 8 70GB SSDs 24

25 25 Customer example V840 (Flashdisk model of 2014)

26 Design examples different I/O groups tiered disk setups All disk is virtualized and can be moved non-disruptively between disk-classes Automatic tiering between SSD and XIV enterprise disk Automatic tiering between FlashDisk and XIV enterprise disk 100% FlashDisk SSD

27 Design examples high performance high redundancy Server any style SVC virtualisering Write Write Preferred read Synkron kopi V K SAS Maximum performance Flash Synkronous write two systems 100% read from Flash Maximum redundancy Maximum performance No downtime if errors occours or in upgrades

28 Design examples DR solutions Disk Copenhagen Tape Stockholm Mimix replication Mimix replication Helsinki Tape Disk Oslo Mimix replication 28

29 Benefits using external storage for IBM i High Availability Disaster Recovery Virtualization Open choice of disk style Performance Consolidation Performance Flexibility Ease of upgrades Consolidation Administration Cost Flexibility Virtualization with VIOS and SVC All development and future concepts are based on VIOS Centralized Storage Management

30 Thank You Tore Thon Server & Storage Expert Pedab Ole Kristian Myklebust IBM Lab Services Consultant