IBM TotalStorage Enterprise Storage Server model 800 / Gustavo Castets ... [et al.].

Format:

Book

Contributor:

Castets, Gustavo.

International Business Machines Corporation. International Technical Support Organization.

Series:

IBM redbooks.

IBM redbooks

Language:

English

Subjects (All):

Storage area networks (Computer networks).

Electronic data processing--Backup processing alternatives.

Electronic data processing.

Data recovery (Computer science).

Physical Description:

xxii, 284 p. : ill.

Edition:

2nd ed.

Place of Publication:

[United States?] : IBM Corp., 2002.

Language Note:

English

Contents:

Front cover

Contents

Figures

Tables

Notices

Trademarks

Preface

The team that wrote this redbook

Become a published author

Comments welcome

Chapter 1. Introduction

1.1 The IBM TotalStorage Enterprise Storage Server

1.2 The IBM TotalStorage Enterprise Storage Server Model 800

1.3 Benefits

1.3.1 Storage consolidation

1.3.2 Performance

1.3.3 Data protection

1.3.4 Storage Area Network (SAN)

1.4 Terminology

1.4.1 Host attachment

1.4.2 Data architecture

1.4.3 Server platforms

1.4.4 Other terms

Chapter 2. Hardware

2.1 IBM TotalStorage Enterprise Storage Server Model 800

2.1.1 Hardware characteristics

2.2 ESS Expansion Enclosure

2.3 Photograph of the ESS Model 800

2.4 ESS major components

2.5 ESS cages

2.6 ESS disks

2.6.1 ESS disk capacity

2.6.2 Disk features

2.6.3 Disk eight-packs

2.6.4 Disk eight-pack capacity

2.6.5 Disk intermixing

2.6.6 Disk conversions

2.6.7 Step Ahead option

2.7 Clusters

2.7.1 Processors

2.7.2 Cache

2.7.3 Non-volatile storage (NVS)

2.8 Device adapters

2.8.1 SSA 160 device adapters

2.8.2 Disk drives per loop

2.8.3 Hot spare disks

2.9 SSA loops

2.9.1 SSA operation

2.9.2 Loop availability

2.9.3 Spatial reuse

2.10 Host adapters

2.11 ESCON host adapters

2.12 SCSI host adapters

2.13 Fibre Channel host adapters

2.14 FICON host adapters

2.15 Fibre distances

2.16 Power supplies

2.16.1 Power characteristics

2.16.2 Battery backup

2.17 Other interfaces

2.18 ESS Master Console

2.18.1 ESS local area network

Chapter 3. Architecture

3.1 Overview

3.2 Data availability architecture

3.2.1 Data accessibility

3.2.2 Data protection

3.3 ESS availability features

3.3.1 Fault-tolerant subsystem

3.3.2 Cluster failover/failback

3.3.3 CUIR.

3.4 Maintenance strategy

3.4.1 Call Home and remote support

3.4.2 SSR/CE dispatch

3.4.3 Concurrent maintenance

3.5 Concurrent logic maintenance

3.6 Concurrent power maintenance

3.7 Sparing

3.7.1 Sparing in a RAID rank

3.7.2 Replacement DDM is new spare

3.7.3 Capacity intermix sparing

3.8 Cluster operation: failover/failback

3.8.1 Normal operation before failover

3.8.2 Failover

3.8.3 Failback

3.9 CUIR

3.10 RAID Data protection

3.10.1 RAID ranks

3.10.2 RAID 5 rank

3.10.3 RAID 10 rank

3.10.4 Combination of RAID 5 and RAID 10 ranks

3.11 SSA device adapters

3.12 Logical Subsystems

3.12.1 Device adapters mapping

3.12.2 Ranks mapping

3.13 Host mapping to Logical Subsystem

3.13.1 SCSI and Fibre Channel mapping

3.13.2 CKD server mapping

3.14 Architecture characteristics

3.15 ESS Implementation - Fixed block

3.15.1 SCSI mapping

3.15.2 FCP mapping

3.16 ESS Implementation - CKD

3.17 CKD server view of ESS

3.18 CKD Logical Subsystem

3.19 SCSI server view of ESS

3.20 FB Logical Subsystem - SCSI attachment

3.21 Fibre Channel server view of ESS

3.22 FB Logical Subsystem - Fibre Channel attachment

3.23 iSeries

3.23.1 Single level storage

3.23.2 iSeries storage management

3.24 Data flow - host adapters

3.25 Data flow - read

3.25.1 Host adapter

3.25.2 Processor

3.25.3 Device adapter

3.25.4 Disk drives

3.26 Data flow - write

3.26.1 Host adapters

3.26.2 Processor

3.26.3 Device adapter

3.27 Cache and read operations

3.28 NVS and write operations

3.28.1 Write operations

3.28.2 NVS

3.29 Sequential operations - read

3.30 Sequential operations - write

3.31 zSeries I/O accelerators

3.31.1 Parallel Access Volumes (PAV)

3.31.2 Multiple Allegiance

3.31.3 I/O priority queuing

Chapter 4. Configuration.

4.1 Overview

4.2 Physical configuration

4.3 Storage capacity

4.3.1 Flexible capacity configurations

4.3.2 Step Ahead configurations

4.4 Logical configuration

4.4.1 Logical standard configurations

4.5 Base enclosure

4.6 Expansion Enclosure

4.7 Base and Expansion Enclosure loop configuration

4.8 Upgrade with eight-packs

4.9 Physical configuration

4.9.1 Cluster Processors

4.9.2 Cache

4.9.3 Host adapters

4.9.4 Device adapters

4.9.5 Performance accelerators

4.9.6 ESS copy functions

4.10 Loop configuration

4.11 Loop configuration - RAID 5 ranks

4.12 Loop configuration - RAID 10 ranks

4.13 Loop configuration - Mixed RAID ranks

4.13.1 RAID 5 versus RAID 10 considerations

4.13.2 Reconfiguration of RAID ranks

4.14 ESSNet setup

4.14.1 ESSNet and ESS Master Console

4.14.2 User local area network

4.14.3 Physical setup

4.14.4 Web browser

4.15 The ESS Specialist

4.15.1 ESS Specialist configuration windows

4.15.2 Logical standard configurations

4.16 ESS logical configuration

4.17 Logical configuration process

4.18 SCSI and Fibre Channel hosts and host adapters

4.19 ESCON and FICON host adapters

4.20 Defining Logical Subsystems

4.20.1 CKD Logical Subsystems

4.20.2 FB Logical Subsystems

4.21 Disk groups - ranks

4.22 RAID 5 and RAID 10 rank intermixing

4.23 Balancing RAID 10 ranks

4.24 Configuring CKD ranks

4.25 Configuring FB ranks

4.26 Assigning logical volumes to a rank

4.26.1 Rank capacities

4.26.2 Adding CKD logical volumes

4.26.3 Assigning iSeries logical volumes

4.26.4 Assigning fixed block logical volumes

4.27 Defining CKD logical devices

4.28 Defining FB logical devices

4.28.1 SCSI attached hosts

4.28.2 Fibre Channel-attached hosts

4.29 LSS/ranks configuration example

4.30 SCSI host connectivity.

4.30.1 Single host connection

4.30.2 SCSI connection for availability

4.30.3 Multi-connection without redundancy

4.30.4 Daisy-chaining host SCSI adapters

4.31 Fibre Channel host connectivity

4.31.1 Fibre Channel topologies

4.31.2 Fibre Channel connection for availability

4.32 ESCON host connectivity

4.32.1 ESCON control unit images

4.32.2 ESCON logical paths establishment

4.32.3 Calculating ESCON logical paths

4.33 FICON host connectivity

4.33.1 FICON control unit images

4.33.2 Calculating FICON logical paths

4.34 ESCON and FICON connectivity intermix

4.35 Standard logical configurations

Chapter 5. Performance

5.1 Performance accelerators

5.2 Third-generation hardware

5.3 RISC SMP processors

5.4 Caching algorithms

5.4.1 Optimized cache usage

5.4.2 Sequential pre-fetch I/O requests

5.5 Efficient I/O operations

5.5.1 SCSI command tag queuing

5.5.2 z/OS enhanced CCWs

5.6 Back-end high performance design

5.6.1 Serial Storage Architecture (SSA)

5.6.2 Striping

5.6.3 RAID 10 vs RAID 5

5.6.4 High-performance disk drives

5.7 Configuring for performance

5.7.1 Host adapters

5.7.2 RAID ranks

5.7.3 Cache

5.7.4 Disk drives

5.8 Subsystem Device Driver

5.9 Measurement tools

5.10 IBM TotalStorage Expert

5.10.1 ESS Expert overview

5.10.2 How does the ESS Expert work

5.10.3 ESS Expert performance reports

5.11 z/OS environment tools

Chapter 6. zSeries performance

6.1 Overview

6.2 Parallel Access Volume

6.2.1 Traditional z/OS behavior

6.2.2 Parallel I/O capability

6.2.3 Benefits of Parallel Access Volume

6.2.4 PAV base and alias addresses

6.2.5 PAV tuning

6.2.6 Configuring PAVs

6.2.7 Querying PAVs

6.2.8 PAV assignment

6.2.9 WLM support for dynamic PAVs

6.2.10 Reassignment of a PAV alias.

6.2.11 Mixing PAV types

6.2.12 PAV support

6.3 Multiple Allegiance

6.3.1 Parallel I/O capability

6.3.2 Eligible I/Os for parallel access

6.3.3 Software support

6.3.4 Benefits of Multiple Allegiance

6.4 I/O Priority Queuing

6.4.1 Queuing of channel programs

6.4.2 Priority queuing

6.5 Custom volumes

6.6 FICON host adapters

6.6.1 FICON benefits

6.6.2 FICON I/O operation

6.6.3 FICON benefits at your installation

6.7 Host adapters configuration

Chapter 7. Copy functions

7.1 ESS Copy Services functions

7.2 Managing ESS Copy Services

7.2.1 ESS Copy Services Web user interface

7.2.2 ESS Copy Services command-line interface (CLI)

7.2.3 TSO commands

7.3 ESS Copy Services setup

7.4 FlashCopy

7.4.1 Overview

7.4.2 Consistency

7.4.3 FlashCopy management on the zSeries

7.4.4 FlashCopy management on the open systems

7.5 Peer-to-Peer Remote Copy (PPRC)

7.5.1 PPRC overview

7.5.2 PPRC volume states

7.5.3 PPRC with static volumes

7.5.4 PPRC management on the zSeries

7.5.5 PPRC management on the open systems

7.6 PPRC implementation on the ESS

7.7 PPRC Extended Distance (PPRC-XD)

7.7.1 PPRC-XD operation

7.7.2 Data consistency

7.7.3 Automation

7.7.4 PPRC-XD for initial establish

7.7.5 Implementing and managing PPRC Extended Distance

7.8 PPRC connectivity

7.8.1 PPRC supported distances

7.8.2 PPRC channel extender support

7.8.3 PPRC Dense Wave Division Multiplexor (DWDM) support

7.9 Concurrent Copy

7.10 Extended Remote Copy (XRC)

7.10.1 Overview

7.10.2 Invocation and management of XRC

7.10.3 XRC implementation on the ESS

7.10.4 Coupled Extended Remote Copy (CXRC)

7.10.5 XRC FICON support

7.11 ESS Copy Services for iSeries

7.11.1 The Load Source Unit (LSU)

7.11.2 Mirrored internal DASD support

7.11.3 LSU mirroring.

7.11.4 FlashCopy.

Notes:

Includes index.

OCLC:

939263407