Contents
About this book ........... v
Who should use this book .......... v
Conventions and terminology ........ v
Publications and related information ...... v
IBM Publications Center .......... ix
Sending comments ............ x
Summary of changes......... xi
Chapter 1. Overview ......... 1
Machine types overview .......... 4
Hardware ............... 5
System types ............. 6
Storage enclosures ........... 21
Management console .......... 22
Ethernet switches ........... 22
Processor nodes ............ 22
I/O enclosures ............ 22
Power ............... 23
Functional overview ........... 23
Logical configuration ........... 27
Logical configuration with DS8000 Storage
Management GUI ........... 27
Logical configuration with DS CLI...... 29
RAID implementation .......... 31
Logical subsystems ........... 33
Allocation methods ........... 33
Management interfaces .......... 35
DS8000 Storage Management GUI ...... 35
DS command-line interface ........ 35
DS Open Application Programming Interface .. 36
RESTful API ............. 36
IBM Spectrum Control.......... 37
IBM Copy Services Manager........ 37
DS8000 Storage Management GUI supported web
browsers ............... 38
Chapter 2. Hardware features ..... 41
Storage complexes ............ 46
Management console ........... 46
Hardware specifics ............ 46
Storage system structure ......... 46
Disk drives and flash drives ........ 47
Drive maintenance policy......... 47
Host attachment overview ........ 48
I/O load balancing ............ 50
Storage consolidation ........... 50
Count key data ............. 51
Fixed block .............. 51
T10 DIF support ............ 51
Logical volumes ............. 52
Allocation, deletion, and modification of volumes 52
LUN calculation ............. 53
Extended address volumes for CKD ...... 54
Quick initialization ............ 55
Chapter 3. Data management features 57
Transparent cloud tiering .......... 57
Dynamic volume expansion ......... 59
Count key data and fixed block volume deletion
prevention............... 59
Thin provisioning ............ 59
Extent Space Efficient (ESE) capacity controls for
thin provisioning ........... 60
IBM Easy Tier ............. 61
VMware vStorage API for Array Integration support 64
Performance for IBM Z .......... 66
Copy Services ............. 67
Disaster recovery through Copy Services ... 76
Resource groups for Copy Services scope limiting 77
Comparison of Copy Services features ..... 79
I/O Priority Manager ........... 80
Securing data.............. 81
Chapter 4. Planning the physical
configuration ............ 83
Configuration controls........... 83
Determining physical configuration features ... 83
Management console features ........ 84
Primary and secondary management consoles .. 84
Configuration rules for management consoles .. 85
Storage features ............. 85
Storage enclosures and drives ....... 85
Storage-enclosure fillers ......... 88
Device adapters and flash RAID adapters ... 89
Drive cables ............. 89
Configuration rules for storage features .... 91
Physical and effective capacity ....... 93
I/O adapter features ........... 98
I/O enclosures ............ 99
Fibre Channel (SCSI-FCP and FICON) host
adapters and cables........... 99
zHyperLink adapters and cables ...... 101
Feature codes for Transparent cloud tiering
adapters .............. 102
Feature codes for flash RAID adapters .... 102
Configuration rules for I/O adapter features 103
Processor complex features ......... 108
Feature codes for processor licenses ..... 109
Processor memory features ......... 109
Feature codes for system memory ..... 109
Power features ............. 110
Power cords............. 110
Input voltage ............ 112
Direct-current uninterruptible-power supply .. 112
Configuration rules for power features .... 113
Other configuration features ........ 113
Extended power line disturbance ...... 113
BSMI certificate (Taiwan) ........ 113
Shipping weight reduction ........ 114
© Copyright IBM Corp. 2004, 2018 iii
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