IBM DS8900F

Contents
About this book....................................................................................................vii
Who should use this book.......................................................................................................................... vii
Conventions and terminology.................................................................................................................... vii
Publications and related information.........................................................................................................vii
IBM Publications Center............................................................................................................................. xi
Feedback..................................................................................................................................................... xi
Summary of changes .......................................................................................... xiii
Chapter 1. Overview.............................................................................................. 1
Machine types.............................................................................................................................................. 2
Hardware......................................................................................................................................................3
DS8910F Rack Mounted model 993......................................................................................................4
DS8910F model 994.............................................................................................................................. 6
DS8950F model 996.............................................................................................................................. 6
High Performance Flash Enclosures Gen2 pair.....................................................................................7
I/O enclosures........................................................................................................................................ 8
Processor nodes..................................................................................................................................... 8
Management enclosure..........................................................................................................................8
Power...................................................................................................................................................... 9
Functions......................................................................................................................................................9
Logical conguration..................................................................................................................................12
Logical conguration with DS8000 Storage Management GUI.......................................................... 12
Logical conguration with DS CLI........................................................................................................ 14
RAID implementation...........................................................................................................................15
Logical subsystems.............................................................................................................................. 16
Allocation methods.............................................................................................................................. 17
Management interfaces.............................................................................................................................18
DS8000 Storage Management GUI..................................................................................................... 18
DS command-line interface ................................................................................................................ 19
RESTful API.......................................................................................................................................... 19
IBM Spectrum Control..........................................................................................................................19
IBM Copy Services Manager................................................................................................................ 20
Supported web browsers.......................................................................................................................... 20
Chapter 2. Hardware features..............................................................................23
Storage complexes.................................................................................................................................... 26
Management console.................................................................................................................................27
Hardware specics.................................................................................................................................... 27
Storage system structure.....................................................................................................................27
Flash drives...........................................................................................................................................27
Drive maintenance policy.....................................................................................................................28
Host attachment overview...................................................................................................................28
I/O load balancing......................................................................................................................................30
Storage consolidation................................................................................................................................30
Count key data........................................................................................................................................... 30
Fixed block.................................................................................................................................................31
T10 DIF support................................................................................................................................... 31
Logical volumes......................................................................................................................................... 31
Allocation, deletion, and modication of volumes..............................................................................32
iii