book

IBM DS8880 Architecture and Implementation (Release 8.3)

Name: IBM DS8880 Architecture and Implementation (Release 8.3)
ISBN: 9780738442778

by Bert Dufrasne, Matthew Houzenga, Sherry Brunson, Peter Kimmel, Matthew Orovitz, Dennis Robertson, Michael Stenson, Axel Westphal

November 2017

Intermediate to advanced

490 pages

14h 48m

English

IBM Redbooks

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Front cover
Notices
Trademarks
Preface
AuthorsNow you can become a published author, too!Comments welcomeStay connected to IBM Redbooks
Summary of changes
November 2017, Fourth Edition
Part 1 Concepts and architecture
Chapter 1. Introduction to the IBM DS8880
1.1 Introduction to the IBM DS88801.1.1 At-a-glance features of the DS88801.2 DS8880 controller options and frames1.3 DS8880 architecture and functions overview1.3.1 Overall architecture and components1.3.2 Storage capacity1.3.3 Supported environments1.3.4 Configuration flexibility1.3.5 Copy Services functions1.3.6 Service and setup1.3.7 IBM Certified Secure Data Overwrite1.4 Performance features1.4.1 16 Gbps host adapters1.4.2 Sophisticated caching algorithms1.4.3 Flash storage1.4.4 Performance for IBM Z systems1.4.5 Performance enhancements for IBM Power Systems
Chapter 2. IBM DS8880 hardware components and architecture
2.1 Flash drive terminology of the DS88802.1.1 Storage system2.1.2 Management Console2.1.3 Central processor complex2.2 DS8880 configurations and models2.2.1 DS8888 All-Flash configuration2.2.2 DS8886 configuration2.2.3 DS8884 configuration2.2.4 DS8880 base frames2.2.5 DS8880 expansion frames2.2.6 Scalable upgrades2.2.7 Licensed functions2.3 DS8880 architecture overview2.3.1 IBM POWER8-based servers2.3.2 Processor memory2.3.3 Flexible service processor2.3.4 Ethernet Connections2.3.5 Peripheral Component Interconnect Express adapters2.4 I/O enclosures and adapters2.4.1 Cross-cluster communication2.4.2 I/O enclosure adapters2.5 Storage enclosures and drives2.5.1 Drive enclosures2.5.2 Standard drive enclosures2.6 Power and cooling2.6.1 Rack Power Control2.6.2 Direct current uninterruptible power supply2.6.3 Battery service module set2.6.4 Extended Power Line Disturbance feature2.6.5 Power cord options2.6.6 Power distribution2.6.7 Enclosure power supplies2.6.8 Power junction assembly2.7 Management Console and network2.7.1 Ethernet switches2.7.2 DS8880 operator panel2.8 Hardware feature summary for DS8880 configurations
Chapter 3. Reliability, availability, and serviceability on the IBM DS8880
3.1 DS8880 processor complex features3.1.1 POWER8 Hypervisor3.1.2 POWER8 processor3.1.3 AIX operating system3.1.4 Cross-cluster communication3.1.5 Environmental monitoring3.1.6 Resource unconfiguration3.2 CPC failover and failback3.2.1 Dual cluster operation and data protection3.2.2 Failover3.2.3 Failback3.2.4 NVS and power outages3.3 Data flow in the DS88803.3.1 I/O enclosures3.3.2 Host connections3.3.3 Metadata checks3.4 RAS on the Hardware Management Console3.4.1 Licensed Internal Code updates3.4.2 Call home and remote support3.5 RAS on the storage subsystem3.5.1 RAID configurations3.5.2 Drive path redundancy3.5.3 Predictive Failure Analysis3.5.4 Disk scrubbing3.5.5 RAID support3.5.6 RAID 6 overview3.5.7 RAID 10 overview3.5.8 RAID 5 implementation in DS88803.5.9 Spare creation3.6 RAS on the power subsystem3.6.1 Power components3.6.2 Line power loss3.6.3 Line power fluctuation3.6.4 Power control3.7 Other features3.7.1 Internal network3.7.2 Earthquake resistance3.7.3 Secure Data Overwrite
Chapter 4. Virtualization concepts
4.1 Virtualization definition4.2 Benefits of virtualization4.3 Abstraction layers for drive virtualization4.3.1 Array sites4.3.2 Arrays4.3.3 Ranks4.4 Extent pools4.4.1 Dynamic extent pool merge4.4.2 Logical volumes4.4.3 Allocation, deletion, and modification of LUNs and CKD volumes4.4.4 Volume allocation and metadata4.4.5 Logical subsystems4.4.6 Volume access4.4.7 Virtualization hierarchy summary
Chapter 5. DS8000 Copy Services overview
5.1 Introduction to Copy Services5.1.1 DS8000 Copy Services functions5.1.2 Copy Services management interfaces5.2 FlashCopy5.2.1 The FlashCopy background copy5.2.2 No background copy option5.2.3 Benefits and use5.2.4 FlashCopy options5.2.5 Remote-Pair FlashCopy (Preserve Mirror)5.2.6 Remote-Pair FlashCopy with Multiple-Target PPRC5.2.7 FlashCopy with Thin Provisioning5.2.8 Cascading Flashcopy5.3 Remote Mirror and Copy5.3.1 Thin Provisioning with Remote Replication5.3.2 Metro Mirror5.3.3 Global Copy5.3.4 Global Mirror5.3.5 Metro/Global Mirror5.3.6 Multi-Target PPRC5.3.7 z/OS Global Mirror5.3.8 z/OS Metro/Global Mirror5.3.9 GDPS on z/OS environments5.4 Copy Services in DS8880 Storage Management GUI5.4.1 FlashCopy5.4.2 Mirroring5.4.3 Mirroring Paths

Chapter 6. Designed for performance
6.1 DS8880 hardware: Performance characteristics6.1.1 Vertical growth and scalability6.1.2 POWER86.1.3 High-Performance Flash Enclosure6.1.4 Switched Fibre Channel Arbitrated Loops6.1.5 Fibre Channel device adapter6.1.6 16-Gbps and 8-Gbps Fibre Channel host adapters6.2 Software performance: Synergy items6.2.1 Synergy with Power Systems6.2.2 Synergy with IBM Z6.3 Performance considerations for disk drives6.3.1 Flash storage6.3.2 Enterprise drives6.3.3 Nearline drives6.3.4 RAID level6.4 DS8000 superior caching algorithms6.4.1 Sequential Adaptive Replacement Cache6.4.2 Adaptive Multi-stream Prefetching6.4.3 Intelligent Write Caching6.4.4 List Prefetch Optimizer6.5 Performance considerations for logical configurations6.5.1 Workload characteristics6.5.2 Data placement in the DS80006.6 I/O Priority Manager6.6.1 Performance policies for open systems6.6.2 Performance policies for IBM Z6.7 IBM Easy Tier6.8 Host performance and sizing considerations6.8.1 Performance and sizing considerations for open systems
Part 2 Planning and installation
Chapter 7. IBM DS8880 physical planning and installation
7.1 Considerations before the installation: Planning for growth7.1.1 Client responsibilities for the installation7.1.2 Participants7.1.3 Required information7.2 Planning for the physical installation7.2.1 Delivery and staging area7.2.2 Floor type and loading7.2.3 Overhead cabling features7.2.4 Room space and service clearance7.2.5 Power requirements and operating environment7.2.6 Host interface and cables7.2.7 Host adapter Fibre Channel specifics for open environments7.2.8 FICON specifics on z/OS environment7.2.9 Best practices for host adapters7.2.10 WWNN and WWPN determination7.3 Network connectivity planning7.3.1 Hardware Management Console and network access7.3.2 IBM Spectrum Control7.3.3 DS command-line interface7.3.4 Remote support connection7.3.5 Storage area network connection7.3.6 Key manager servers for encryption7.3.7 Lightweight Directory Access Protocol server for single sign-on7.4 Remote Mirror and Copy connectivity7.5 Disk capacity considerations7.5.1 Disk sparing7.5.2 Disk capacity7.5.3 DS8000 SSD flash drives considerations7.5.4 DS8000 flash drives for HPFE Gen2 considerations
Chapter 8. IBM DS8880 Management Console planning and setup
8.1 DS8880 Management Console overview8.1.1 Management Console hardware8.1.2 Private Ethernet networks8.2 Management Console software8.2.1 DS Management GUI8.2.2 DS command-line interface8.2.3 DS Open application programming interface8.2.4 RESTful application programming interface8.2.5 Copy Services Manager interface8.2.6 Web-based user interface8.3 Management Console activities8.3.1 Management Console planning tasks8.3.2 Planning for Licensed Internal Code upgrades8.3.3 Time synchronization8.3.4 Monitoring DS8880 with the Management Console8.3.5 Event Notification through Syslog8.3.6 Call home and remote support8.4 Management Console and IPv68.4.1 Configuring the Management Console in an IPv6 environment8.5 Management Console user management8.5.1 Password policies8.5.2 Remote Authentication8.6 Optional Secondary Management Console8.6.1 Management Console redundancy benefits
Chapter 9. IBM DS8880 features and licensed functions
9.1 IBM DS8880 licensed functions9.1.1 Feature Codes for Copy Services Manager on HMC9.1.2 Licensing general introduction9.1.3 Licensing cost structure9.2 Activating licensed functions9.2.1 Obtaining DS8000 machine information and activating license keys9.2.2 Obtaining the activation codes9.2.3 Applying activation codes by using the DS CLI9.3 Licensed scope considerations
Part 3 Storage configuration
Chapter 10. Configuration flow
10.1 Configuration worksheets10.2 User and role management10.3 Disk encryption10.4 Network security10.5 Configuration flow10.6 General storage configuration guidelines
Chapter 11. DS8880 Storage Management GUI
11.1 Introduction11.2 DS8000 Storage Management GUI: Getting started11.2.1 Accessing the DS GUI11.2.2 Storage Management GUI System Setup wizard11.2.3 Configuring I/O Port protocols/topologies11.2.4 Managing and monitoring the storage system11.2.5 Storage Management help functions11.3 System configuration overview11.3.1 View and change the customer network settings11.3.2 Security settings11.3.3 System Settings11.3.4 Notifications Settings11.3.5 Support Settings11.4 Logical configuration overview11.5 Logical configuration for Open Systems (FB) volumes11.5.1 Configuration flow11.5.2 Creating FB pools for Open Systems Hosts11.5.3 Creating FB volumes for Open Systems Hosts11.5.4 Creating FB host attachments11.5.5 Assigning FB volumes11.6 Logical configuration for count key data volumes11.6.1 Configuration flow11.6.2 Creating CKD storage pools11.6.3 Creating CKD logical subsystems11.6.4 Creating CKD volumes11.6.5 Creating CKD parallel access volumes11.6.6 Setting the I/O port protocols for IBM Z attachment11.6.7 Easy Tier support11.7 Monitoring system health11.7.1 Hardware components: Status and attributes11.7.2 Monitoring system events11.7.3 Audit Logs and Syslog Notifications11.8 Performance monitoring11.8.1 Performance statistics11.8.2 Working with customized performance graphs11.9 Fibre Channel error rate statistics11.10 Accessing the previous DS GUI
Chapter 12. Configuration with the data storage command-line interface
12.1 DS command-line interface overview12.1.1 Supported operating systems for the DS CLI12.1.2 Installation hints and tips12.1.3 Installing the DS CLI on a Windows 10 system12.1.4 Installing the DS CLI on z/OS System12.1.5 DS CLI version12.1.6 User accounts12.1.7 User management by using the DS CLI12.1.8 DS CLI profile12.1.9 Configuring the DS CLI to use a second HMC12.1.10 Command structure12.1.11 Using the DS CLI application12.1.12 Return codes12.1.13 User assistance12.2 I/O port configuration12.3 DS8880 storage configuration for fixed-block volumes12.3.1 Disk classes12.3.2 Creating the arrays12.3.3 Creating the ranks12.3.4 Creating the extent pools12.3.5 Creating the FB volumes12.3.6 Creating the volume groups12.3.7 Creating host connections and clusters12.3.8 Mapping open system host disks to storage unit volumes12.4 DS8880 storage configuration for the CKD volumes12.4.1 Creating the arrays12.4.2 Creating the ranks and extent pools12.4.3 Logical control unit creation12.4.4 Creating the CKD volumes12.4.5 Resource groups12.4.6 Performance I/O Priority Manager12.4.7 IBM Easy Tier12.5 Metrics with DS CLI12.6 Private network security commands12.7 Copy Services commands12.8 Further information
Part 4 Maintenance and upgrades
Chapter 13. Licensed machine code
13.1 How new Licensed Internal Code is released13.2 Bundle installation13.3 Code updates13.4 Host adapter firmware updates13.4.1 Light-on fastload firmware update13.4.2 Remote Mirror and Copy path considerations13.4.3 Control-unit initiated reconfiguration13.5 Loading the code bundle13.6 Fast path concurrent code load13.7 Postinstallation activities13.8 Summary
Chapter 14. Monitoring with Simple Network Management Protocol
14.1 SNMP implementation on the DS888014.1.1 Message Information Base file14.1.2 Predefined SNMP trap requests14.2 SNMP notifications14.2.1 Serviceable event that uses specific trap 314.2.2 Copy Services event traps14.2.3 I/O Priority Manager SNMP14.2.4 Thin provisioning SNMP14.3 SNMP configuration14.3.1 SNMP preparation14.3.2 SNMP configuration with the HMC14.3.3 SNMP configuration with the DS CLI
Chapter 15. Remote support
15.1 Introduction to remote support15.2 IBM policies for remote support15.3 Remote support advantages15.4 Remote support call home15.4.1 Call home and heartbeat: Outbound15.4.2 Data offload: Outbound15.4.3 Outbound connection types15.5 Remote Support Access (inbound)15.5.1 Assist On-site15.5.2 DS8880 embedded AOS15.5.3 DS8880 Remote Support Center (rsc)15.5.4 Support access management through the DS CLI and the Storage Management GUI15.6 Audit logging
Chapter 16. DS8870 to DS8880 model conversion
16.1 Introducing Model Conversion16.2 Model Conversion Overview16.2.1 Configuration Considerations16.2.2 Hardware Considerations16.3 Model Conversion Phases16.3.1 Planning16.3.2 Prerequisites16.3.3 Mechanical Conversion16.3.4 Post Conversion Operations
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Back cover

Overview

Abstract

This IBM® Redbooks® publication describes the concepts, architecture, and implementation of the IBM DS8880 family. The book provides reference information to assist readers who need to plan for, install, and configure the DS8880 systems.

The IBM DS8000® family is a high-performance, high-capacity, highly secure, and resilient series of disk storage systems. The DS8880 family is the latest and most advanced of the DS8000 offerings to date. The high availability, multiplatform support, including IBM Z, and simplified management tools help provide a cost-effective path to an on-demand and cloud-based infrastructures.

The IBM DS8880 family now offers business-critical, all-flash, and hybrid data systems that span a wide range of price points:

DS8884 -- Business Class

DS8886 -- Enterprise Class

DS8888 -- Analytics Class

The DS8884 and DS8886 are available as either hybrid models, or can be configured as all-flash. Each model represents the most recent in this series of high-performance, high-capacity, flexible, and resilient storage systems. These systems are intended to address the needs of the most demanding clients.

Two powerful IBM POWER8® processor-based servers manage the cache to streamline disk I/O, maximizing performance and throughput. These capabilities are further enhanced with the availability of the second generation of high-performance flash enclosures (HPFEs Gen-2) and newer flash drives.

Like its predecessors, the DS8880 supports advanced disaster recovery (DR) solutions, business continuity solutions, and thin provisioning. All disk drives in the DS8880 storage system include the Full Disk Encryption (FDE) feature. The DS8880 can automatically optimize the use of each storage tier, particularly flash drives, by using the IBM Easy Tier® feature.

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