IBM DS6000 manuali

Ibm DS6000 Manuale Utente (578 pagine)

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IBM System Storage DS6000

1

Series: Copy Services with

1

IBM System z

1

December 2006

3

Third Edition (December 2006)

4

Contents

5

Contents v

7

Contents vii

9

Contents ix

11

Contents xi

13

Contents xiii

15

Trademarks

18

Acknowledgements

21

Become a published author

22

Comments welcome

22

Summary of changes

23

Overview

25

Introduction

27

Point-in-Time Copy and

28

Chapter 1. Introduction 5

29

Copy Services architecture

31

DS6000 SFI

32

DS8000 SFI

33

Storage

34

Complex 1

34

Complex 2

34

DS8000 management structure

35

Client 1

36

Client 2

36

Interfaces

39

3.2 Installation modes

42

http://10.0.0.1, you will

43

10.0.0.1

46

Management

47

10.0.0.100

48

DS Command-Line Interface

49

4.3 User accounts

51

4.4 DS CLI profile

52

4.5 Command structure

53

4.6 Copy Services commands

53

Table 4-3 Creation commands

54

Table 4-4 Deletion commands

54

Table 4-5 Options commands

54

4.7.1 Single-shot mode

55

4.7.2 Script command mode

56

4.7.3 Interactive mode

56

4.8 Return codes

57

4.9 User assistance

58

4.10 Usage examples

59

System z interfaces

61

5.1 System z interfaces

62

5.2 TSO

62

5.3 ICKDSF

63

5.4 DFSMSdss

63

5.5 The ANTRQST macro

63

5.6 z/TPF commands

63

FlashCopy overview

67

6.1 Operational environments

68

6.2 Terminology

69

6.3 Basic concepts

69

Writing to the source and

70

Writing to the target

71

6.3.1 Full volume copy

72

6.3.2 Nocopy option

72

FlashCopy options

77

7.5 Remote FlashCopy

83

7.6 Persistent FlashCopy

83

7.7 Data set FlashCopy

83

7.8 Reverse restore

84

7.9 Fast reverse restore

84

7.10 Options and interfaces

84

Function

85

FlashCopy ordering and

87

8.1 Ordering FlashCopy

88

8.2 Activating FlashCopy

89

License value

90

Deactivation

90

8.2.2 Activation

91

FlashCopy interfaces

93

9.3 z/OS-provided interfaces

96

=========

101

0000:0100

101

0001:0101

101

can be incremented. To

104

. Identify the

113

Reverse

116

. Identify the DS6000

117

9.6.5 Resynchronize target

118

Full volume FlashCopy

121

Data set FlashCopy

125

Consistency Group FlashCopy

127

Incremental FlashCopy

127

Full volume background copy

128

FlashCopy NOCOPY option

128

Inband FlashCopy

130

FlashCopy performance

135

Terminology

136

10.1.3 Rank geometry

137

10.1.4 Incremental FlashCopy

137

10.6 FlashCopy scenarios

140

FlashCopy examples

145

11.1.1 One-time test system

146

11.2 Create a backup

147

Metro Mirror

151

Metro Mirror overview

153

12.1 Metro Mirror overview

154

12.3 Data consistency

155

12.4 Rolling disaster

156

Metro Mirror options and

157

13.2 Failover and failback

158

Consistency Group option

161

Application

162

13.3.4 Critical attribute

165

13.4.1 Fibre Channel links

167

13.4.2 Logical paths

168

13.5 Bandwidth

169

13.6 LSS design

169

DS6000 #1 DS6000 #2

170

13.10 Hardware requirements

172

Metro Mirror interfaces

173

14.2.1 Commands overview

176

14.2.2 CESTPAIR

176

14.2.3 CESTPATH

177

14.2.4 CDELPAIR

178

14.2.5 CDELPATH

178

14.2.6 CGROUP

178

14.2.7 CQUERY

179

14.2.8 CRECOVER

180

14.3 ICKDSF

181

14.3.3 PPRCOPY DELPAIR

183

14.3.4 PPRCOPY DELPATH

184

14.3.5 PPRCOPY ESTPATH

184

14.3.6 PPRCOPY ESTPAIR

185

14.3.7 PPRCOPY FREEZE

185

14.3.8 PPRCOPY QUERY

185

14.3.9 PPRCOPY RECOVER

188

14.3.10 PPRCOPY SUSPEND

188

14.3.11 PPRCOPY RUN

188

14.3.12 Refreshing the VTOC

188

14.6 DS Storage Manager GUI

196

Next, the panel shown in

201

14.7 ANTRQST API

203

Metro Mirror performance and

205

15.1 Performance

206

15.2 Scalability

207

Metro Mirror examples

209

Resynchronize the pair

210

16.2.1 Failover process

211

Syslog messages

212

16.2.2 Failback process

213

Establish a volume pair

219

51% of tracks copied so far

220

Global Copy

223

Global Copy overview

225

Figure 17-1 Global Copy

226

Copy Pending

227

Full Duplex

227

Global Copy options and

229

18.2 Catch-up transition

231

Secondary Site

234

Primary Site

234

18.5 Hardware requirements

237

18.6 DS6800 I/O ports

238

I0100 I0101 I0102 I0103

238

I0000 I0001 I0002 I0003

238

18.7.1 Fibre Channel links

239

18.8 Distance considerations

240

Global Copy performance and

243

19.1 Performance

244

19.2 Scalability

244

Global Copy interfaces

245

20.2.2 CESTPAIR

248

20.2.3 CESTPATH

249

20.2.4 CDELPAIR

249

20.2.5 CDELPATH

249

20.2.6 CGROUP

250

20.2.7 CQUERY

251

20.2.8 CRECOVER

251

20.2.9 CSUSPEND

252

DS CLI supported environments

253

20.5 DS Storage Manager

257

20.5.2 Metro Mirror panel

258

Global Copy examples

261

FC Switch

262

I0000 I0100 I0000 I0100

262

21.2.2 Cascading alternative

268

Global Mirror overview

269

SecondaryPrimary

270

Subsystem

271

Database

271

Summary

277

Remote site

278

Local site

278

22.3.4 Introduce FlashCopy

281

22.4 Consistency Groups

284

Tertiary

285

1 2 31 2 3

286

Global Mirror

289

Global Mirror options and

291

Subordinate

293

Consistency Group

293

Local Site

293

Remote Site

293

Start Global Mirror session

300

Local site Remote site

301

Remote siteLocal site

304

23.7.2 Primary site failure

306

Secondary

307

Action required

310

Failback B to A

316

23.7.9 Return to local site

317

23.7.10 Conclusions

320

Global Mirror interfaces

321

FlashCopy

323

MODE(ASYNC)

323

TSO commands

326

DS Storage Manager

326

ANTRQST Macro

326

24.3.2 Define paths

327

To remote site

328

LCU: 2C00

329

LCU: 3C00

329

LCU: 3E00

331

24.5.2 Define paths

338

Remote site (secondary)

340

Local site (primary)

340

24.5.7 Start Global Mirror

345

24.6 ANTRQST macro

351

24.7 DS Storage Manager GUI

352

Pause; see Figure 24-19

354

01 is paused

355

Resume, from

356

Hold write I/O

361

Global Mirror examples

365

26.2.5 Timing information

369

26.3.1 Define paths

370

Example 26-8

371

FAILBACK

382

Restart Global Mirror session

384

26.5.6 Remove the paths

389

26.9.1 Create paths

398

Define as Consistency Group

400

Create to

401

Back to correct any of

405

, select from the

408

Refresh

412

26.10.1 DS CLI profile files

414

26.10.2 Create paths

415

26.13.5 Remove paths

430

Example 26-78 rmpprcpath

431

Interoperability

433

Combining Copy Service

435

27.1 Data migration

436

Ter t i ar y

437

28.2.3 Network connectivity

440

User ID management

444

28.3.1 Decoding port IDs

445

Adding or deleting paths

446

28.7 z/OS Global Mirror

452

Solutions

455

29.2.3 Network connectivity

458

Administration access level

459

Real-time manager

460

Manage hardware

460

Storage complexes

460

Storage management

461

Determining ESS volume size

462

29.3.1 Decoding port IDs

463

Figure 29-4 Path panel

464

Next to continue. In

465

ESS Specialist

468

Figure 29-11 Metro Mirro

471

Figure 29-12 Pairing method

471

Figure 29-16 Copy options

473

IIBM TotalStorage Rapid Data

481

Recovery

481

30.1 Introduction

482

30.2 Overview

482

Secondar

483

Left side disk data

484

30.3 Architecture

486

AIX – Backup PCM

487

Storage Server (s)

487

AIX – Primary PCM

487

function and

488

30.4 Additional information

489

Center for Replication

491

Standard Edtion Replication

492

31.4.1 FlashCopy

494

31.4.2 Metro Mirror

495

31.4.3 Global Copy

495

31.4.4 Global Mirror

495

PPR link

497

Copy Set

498

Remote SiteLocal site

499

31.8 Volumes in a copy set

501

31.8.1 Host volume

502

31.8.2 Target volume

502

31.8.3 Journal volume

502

IP Communication

504

Services

504

Session

508

31.13 Supported platforms

509

URL of GUI (RM server)

511

IP network

512

password

513

URL of GUI (RM server)

513

user name

513

Health Overview

514

Sessions

514

Storage Subsystems

514

ESS/DS Paths

514

31.15.3 Sessions panel

515

(1) Select session

516

(2) Select action

516

Panel heading

517

Hyper links

517

Interface to functional tasks

517

RM summary

517

31.15.7 Advanced Tools panel

520

31.15.8 Console log

521

Figure 31-27 Console log

522

GDPS overview

525

32.1 GDPS solution offerings

526

32.1.1 GDPS/PPRC overview

527

32.1.2 PPRC and HyperSwap

528

32.1.3 RCMF/PPRC overview

528

32.1.4 GDPS/XRC overview

529

32.1.5 RCMF/XRC overview

529

GDPS PPRC/XRC

530

System z

531

GDPS/PPRC HyperSwap Manager

532

GDPS/PPRC and GDPS/XRC

532

Concurrent Copy

533

Concurrent Copy operation

536

Invoking Concurrent Copy

536

Concurrent Copy on the DS6000

536

Sizing and requirements

537

Where to use Concurrent Copy

538

SMF information

539

DFSMSdss: FlashCopy example

540

Installation options exit

542

SNMP notifications

543

SNMP overview

544

Physical connection events

544

Remote copy events

546

Global Mirror related events

546

Master cannot terminate the

547

Licensing

549

Licenses

550

Authorized level

551

CLI migration

553

Migrating ESS CLI to DS CLI

554

Convert the individual tasks

555

DS CLI commands

556

ESS / DS CLI comparison

556

Related publications

561

Online resources

562

How to get IBM Redbooks

563

Help from IBM

563

Numerics

565

Services with IBM System z

575

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