HP Array Controller HSG V8.7 Software User Manual

DIGITAL
HSG8 0 Array Controll er ACS Version 8 .2

EK-HSG80-UG. B01

Digital Equipment Corporation
Maynard, Mass achusetts

User’s Guide

July 1998

While Digi tal Equipment Corporation believes the inf ormation included in this manual i s correct as of the date of
publicat ion , it is sub je ct to c ha nge wi thout no tice . DI GITAL m akes no r epres ent atio ns tha t the inter co nne ction of its
product s in the manner described in this document will not infringe existing or future patent rig hts, nor do the
descri ptions contained in this document imply the grant ing of licenses to make, use, or sell equipment or software
in acc ordance with the description. No responsibility is assumed for the use or reliability of firmware on equipment
not suppl ied by DIGITAL or its affil iated compani es. Possession, use, or copying of the software or firmw are
descri bed in this documenta tion is authorized only purs uant to a valid w ritten lic ense from DIGITAL, an authorized
sublicensor , or the identified licensor.

Commercia l Comp uter S oft wa re , Com puter Sof tware Doc ument at ion an d Techni ca l Da ta for Comm erci al It ems ar e
licensed to the U.S. Gover n m en t w it h D IGITAL’s stand a rd co m me rcial lice ns e and, when applicable, the rights in
DFAR 252.227 701 5, “Te chnical Data—Comm ercial Items. ”

© Digital Equipment Corporation, 1998.
Printed in U.S.A.
All rights reserved.

DIGITAL, DIGITAL UNIX, DECconnect, HSZ, StorageWorks, VMS, OpenVMS, and the DIGITAL logo are
tradema rks of Digital Equipm ent Corporatio n.

UNIX is a regist ered tradem ark in the U nited States and other countries exclusively through X/Open Company Ltd.
Windows NT is a trademar k of the Micr osoft Corpor ation. Sun is a regis tered trademark of Sun Microsystems , Inc.
Hewlett-Packard and HP–UX are registered trademarks of the Hewlett-Packard Company. IBM and AIX are
registered tradem arks of International Busine ss Machines Corporation. All other trademarks and registered
trade marks are th e pr operty of th ei r respect ive own er s.

This equipment has been tested and fo und to compl y with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This eq uipment generates, uses and can radiate radio fre­quency energy and, i f not installed and used in accordance with the manuals, may cause harmful interference to
radio communications. Operation of t his equipment in a resid en tial area is likely to cause harmful interference in
which case the user will be required to correct the int erference at his own expe nse. Restrictions apply to the use of
the local-connection port on this series of controllers; failure to observe these restr ictions may result in harmful
interference. Always disconne ct this port as soon as possible after completing the setup operation. Any changes or
modifications made to this equipment may void the user's authority t o operate the equipment.

Warning!
This is a Class A product. In a dom estic environment this product may cause radio interference in which case the
user may be required to take adequate measures.

Achtung!
Dieses i st ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses Gerätes Rund­funkstörungen auftreten, in welchen Fällen der Benutz er für entsprechende Gegen ma ßnahmen verantwortlich ist.

Avertissement!
Cet appareil est un appareil de Classe A. D ans un environnement ré sidentiel cet appareil peut provoquer des brouil­lages ra dioélectriques. Dans ce cas, il peut être de mandé à l’ utilisateur de prendre les mesures appropriées .

Preface

Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

Electrostatic Discharge Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

Component Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix

Maintenance Port Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xx

T ypographical Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xx

Special Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxii

Related Publications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv

Chapter 1 General Descri ption

The HSG80 Array Controller Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–2

Summary of HSG80 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–4

The HSG80 Array Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–7

Operator Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–13

Maintenance Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–14

Utilities and Exercisers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–14

Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–18

Caching Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–20

Fault-Tolerance for Write-Back Caching . . . . . . . . . . . . . . . . . . . . . . . . . . .1–21

External Cache Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–28

Charging Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–29

iii

Chapter 2 Configuring an HSG80 Array Controller

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–2

Configuration Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–2

Configuring an HSG80 Array Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–3

Setting the PVA Module ID Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–6

Establishing a Local Connection to the Controller . . . . . . . . . . . . . . . . . . . . . . . .2–7

Selecting a Failover Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–10

Using Transparent Failover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–10

Using Multiple-Bus Failover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–11

Enabling Mirrored Write-Back Cache. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–12

iv

Selecting a Cache Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–12

Fault-Tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–12

Backing up Power with a UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–13

Connecting the Subsystem to the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–14

Connecting a Dua l-Redundant Configuration to the Host. . . . . . . . . . . . . . 2–16

Chapter 3 Creating Storagesets

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2

Planning and Configuring Storagesets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4

Creating a Storageset and Device Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5

Determining Storage Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7

Choosing a Storageset Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–8

Using Stripesets to Increase I/O Performance . . . . . . . . . . . . . . . . . . . . . . . . 3–8

Using Mirrorsets to Ensure Av ailability. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–12

Using RAIDsets to Increase Performance and Availability. . . . . . . . . . . . . 3–15

Using Striped Mirrorsets for Highe s t Perfo rmance and Availability. . . . . . 3–17

Cloning Data for Backup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–19

Backing Up Your Subsystem Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–23

Saving Subsystem Configur ation Information to a Single Disk . . . . . . . . . 3–23

Saving Subsystem Configur ation Information to Multiple Disks . . . . . . . . 3–23

Saving Subsystem Configur ation Information to a Storagese t . . . . . . . . . . 3–24

Controller and Port Worldwide Names (Node IDs) . . . . . . . . . . . . . . . . . . . . . . 3–26

Restoring Worldwide Names (Node IDs) . . . . . . . . . . . . . . . . . . . . . . . . . . 3–26

Unit World Wide Names (LUN IDs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–27

Assigning Unit Numbers for Host Access to Storagesets . . . . . . . . . . . . . . . . . . 3–28

Assigning Unit Offsets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–29

Assigning Access Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–30

Creating a Storageset Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–32

Device PTL Addressing Convention within the Controller. . . . . . . . . . . . . 3–33

Planning Partitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–37

Defining a Partition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–37

Guidelines for Partitioning Storagesets and Disk Drives. . . . . . . . . . . . . . . 3–38

Choosi n g Sw i tches for Sto r a ge s e ts an d Dev ic es. . . . . . . . . . . . . . . . . . . . . . . . . 3–39

Enabling Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–39

Changing Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–39

RAIDset Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–40

Replacement Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–40

Reconstruction Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–40

Membership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–41

Mirrorset Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–42

Replacement Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–42

Copy Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–42

Read Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–43

Device Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–44

Transportability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–44

Device Transfer Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–46

Initialize Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–47

Chunk Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–47

Save Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–50

Destroy/Nodestroy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–52

Unit Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–54

Configuring Storagesets with CLI Commands . . . . . . . . . . . . . . . . . . . . . . . . . .3–55

Adding Disk Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–55

Configuring a Stripeset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–55

Configuring a Mirrorset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–56

Configuring a RAIDset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–57

Configuring a Striped Mirrorset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–59

Configuring a Single-Disk Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–60

Partitioning a Storageset or Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–61

Adding a Disk Drive to the Spareset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–63

Removing a Disk Drive from the Spareset . . . . . . . . . . . . . . . . . . . . . . . . . .3–64

Enabling Autospare. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–65

Deleting a Storageset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–65

Changing Switches for a Storageset or Device. . . . . . . . . . . . . . . . . . . . . . .3–66

Configuring with the Command Console LUN . . . . . . . . . . . . . . . . . . . . . . . . . .3–68

Enabling and Disabling the CCL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–68

Finding the CCL Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–69

Multiple-Port and Multiple-Host Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–69

Tro ubleshooting with the CCL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–70

Adding Storage Units: Where Is the CCL? . . . . . . . . . . . . . . . . . . . . . . . . .3–70

Moving Storagesets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–71

v

vi

Chapter 4 Troubleshooting

Maintenance Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1

Tro ubleshooting Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2

Troubleshooting Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4

Significant Event Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–14

Events that cause controller termination . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–14

Events that do not cause controller operation to terminate . . . . . . . . . . . . . 4–15

Fault Management Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–17

Displaying Failure Entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–17

Translating Event Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–18

Controlling the Display of Significant Events and Failures. . . . . . . . . . . . . 4–20

Using VTDPY to Check for Communication Problems . . . . . . . . . . . . . . . . . . . 4–23

Checking Controller-to-Host Communications . . . . . . . . . . . . . . . . . . . . 4–24

Checking Controller-to-Device Communications . . . . . . . . . . . . . . . . . . . . 4–24

Checking Unit Status and I/O Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–29

Checking Fibre Channel Link Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–31

Checking for Disk-Drive Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–36

Finding a Disk Drive in the Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–36

T esting the Read Capability of a Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . 4–36

T esting the Read and Write Capabilities of a Disk Drive . . . . . . . . . . . . . . 4–37

DILX Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–40

Running the Controller’s Diagnostic Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–41

Chapter 5 Replacement Procedures

Replacing Modules in a Single Controller Configuration. . . . . . . . . . . . . . . . . . . 5–2

Replacing the Controller and Cache Module in a Single Controller

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2

Replacing the Controller in a Single Controller Configuration. . . . . . . . . . . 5–3

Replacing the Cache Module in a Single Controller Configuration . . . . . . . 5–6

Replacing Modul es in a Dual-Redundant Contr oller Configuration. . . . . . . . . . . 5–8

Replacing a Con troller and Cache Module in a Dual-Redundant Controlle r

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–9

Replacing a Con troller in a Dual-Redundant Controller Configuration . . . 5–15
Replacing a Cache Module in a Dual-Redundant Controller

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–21

vii

Replacing the External Cache Battery St o rage

Building Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–27

Replacing the External Cache Batte r y St orage Building Block

With Cabinet Powered On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–28

Replacing the External Cache Batte r y St orage Building Block

With Cabinet Powered Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–29

Replacing the GLM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–32

Replacing a PVA Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–34

Replacing the PVA in the Master Enclosure (ID 0) . . . . . . . . . . . . . . . . . . .5–34

Replacing the PVA in the First Expans ion (ID 2) or Second

Expansion Enclosure (ID 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–36

Replacing an I/O Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–39

Replacing DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–42

Removing DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–43

Installing DIMMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–44

Replacing a Fibre Cable or Hub. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–45

Replacing a PCMCIA Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–46

Replacing a Failed Storageset Member . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–47

Removing a Failed RAIDset or Mirrorset Member . . . . . . . . . . . . . . . . . . .5–47

Installing the New Member . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–47

Shutting Down the Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–48

Disabling and Enabling the External Cache Batteries . . . . . . . . . . . . . . . . .5–48

Restarting the Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–50

Chapter 6 Upgrading the Su bsy stem

Upgrading Controller Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–2

Installing a New Program Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–2

Downloading New Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–3

Using CLCP to Install, Delete, and List Software Patches. . . . . . . . . . . . . . .6–6

Upgrading Firmware on a Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–11

HSUTIL Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–14

Upgrading to a Dual-Redundant Controller Configuration . . . . . . . . . . . . . . . . .6–16

Installi ng a Ne w Controller, Cache Module, and ECB. . . . . . . . . . . . . . . . .6–16

Upgrading Cache Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–20

viii

Appendix A System Profiles

Device Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A–2

Storageset Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A–3

Enclosure Template . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A–4

Appendix B CLI Commands

CLI Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–2

Using the CLI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–2

Command Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–2

Getting Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–3

Entering CLI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–3

Changing the CLI Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–4

Command Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–5

ADD CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–7

ADD DISK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–11

ADD MIRRORSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–15

ADD RAIDSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–19

ADD SPARESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–23

ADD STRIPESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–25

ADD UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–27

CLEAR_ERRORS CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–35

CLEAR_ERRORS controller INVALID_CACHE . . . . . . . . . . . . . . . . . . . . . .B–37

CLEAR_ERRORS device-name UNKNOWN . . . . . . . . . . . . . . . . . . . . . . . . .B–39

CLEAR_ERRO RS u ni t-num be r LOST_DATA . . . . . . . . . . . . . . . . . . . . . . . . .B–41

CLEAR_ERRORS unit-number UNWRITEABLE_DATA . . . . . . . . . . . . . . . .B–43

CONFIGURATION RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–45

CONFIGURATION RESTORE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–47

CONFIGURATION SAVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–49

CREATE_PARTITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–51

DELETE connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–55

DELETE container-name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–57

DELETE FAILEDSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–59

DELETE SPARESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–61

DELETE unit-number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–63

DESTROY_PARTITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–65

DIRECTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–67

HELP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–69

INITIALIZE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–71

LOCATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–77

MIRROR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–79

POWEROFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–83

REDUCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–85

RENAME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–89

RESTART controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–91

RETRY_ERRORS UNWRITEABLE_DATA . . . . . . . . . . . . . . . . . . . . . . . . . B–93

RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–95

SELFTEST controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–99

SET connection-name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–101

SET controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–103

SET device-name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–111

SET EMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–113

SET FAILEDSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–117

SET FAILOVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–119

SET mirrorset-name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–121

SET MULTIBUS_FAILOVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–127

SET NOF AILOVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–129

SET NOMULTIBUS_FAILOVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–131

SET RAIDset-name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–133

SET unit-number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–137

SHOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–143

SHUTDOWN controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–149

UNMIRROR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–151

ix

Appendix C LED Codes

Operator Control Panel LED Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2

Solid OCP Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–3

Flashing OCP Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–8

Appendix D Event Reporting: Templates and Codes

Passthrough Device Reset Event Sense Data Response. . . . . . . . . . . . . . . . . . . . D–2

Last Failure Event Sense Data Response . . . . . . . . . . . . . . . . . . . . . . . . . . . D–3

Multiple-Bus Failover Event Sense Data Response . . . . . . . . . . . . . . . . . . . D–5

x

Failover Event Sense Data Respons e. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–6

Nonvolatile Parameter Memory Component Event Sense

Data Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–8

Backup Batte r y F ailure Event Sense Data Response. . . . . . . . . . . . . . . . . . .D–9

Subsystem Buil t-In Self Tes t Failure Event Sense Data Response . . . . . . .D–10

Memory System Failure Event Sense Data Response . . . . . . . . . . . . . . . . .D–12

Device Serv ices Non-Transfer Error Event Sense Data Response . . . . . . .D–13

Disk Trans f er Error Event Sense Data Response. . . . . . . . . . . . . . . . . . . . .D–14

Instance Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–16

Instance Code Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–16

Instance Codes and FMU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–16

Last Failure Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–36

Last Failure Code Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–36

Last Failure Codes and FMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–36

Recommended Repair Action Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–77

Component Identifier Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–82

Event Threshold Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–84

ASC/ASCQ Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–85

Appendix E Controller Specifications

Physical and Electrical Specifications for the Controller . . . . . . . . . . . . . . . . . . . E–2

Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–3

Glossary

Index

Figures

xi

The HSG80 Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–3

A Host and Its Storage Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–7

HSG80 Array Controller–Fibre Channel Copper Cabling. . . . . . . . . . . . . . . . . . .1–8

Optional Maintenance Port Cable for a Terminal Connection. . . . . . . . . . . . . . .1–10

HSG80 Array Controller–Fibre Channel Optical Cabling. . . . . . . . . . . . . . . . . .1–11

Location of Cont rollers and Cache Modules . . . . . . . . . . . . . . . . . . . . . . . . . . .1–13

HSG80 Controller Operator Control Panel (OCP). . . . . . . . . . . . . . . . . . . . . . . .1–14

Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–19

ECB for Dual-Redundant Configurat ions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–28

SCSI Target ID Numbers on the Controller Device Bus and PVA Settings

in an Extended Subsytem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–6

Terminal to Local- Connection Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . .2–7

“This Controller” and “Other Controller” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–9

Cabling for Sing le Configuration with Fibre Channel Copper Support . . . . . . .2–14

Cabling for Sing le Configuration with Fibre Channel Optical S upport . . . . . . .2–15

Cabling for Dual-Re dundant Configu ration with Two Hubs using

Fibre Channel Copper Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–17

Cabling for Dual-Re dundant Configu ration with Two Hubs using

Fibre Channel Optical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–18

Cabling for Dual-Re dundant Configu ration with One Hub using

Fibre Channel Copper Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–20

Cabling for Dual-Re dundant Configu ration with One Hub using

Fibre Channel Optical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–21

Units Created from Storagesets, Partitions, and Drives . . . . . . . . . . . . . . . . . . . . .3–3

A Typical Storageset Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–6

Striping Lets Several Disk Drives Participate in Each I/O Request. . . . . . . . . . . .3–9

Distribute Members across Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–11

Mirrorsets Maintain Two Copies of the Same Data. . . . . . . . . . . . . . . . . . . . . . .3–12

First Mirrorset Members on Different Buses . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–13

xii

Parity Ensures Availability; Striping Provides Good Performance. . . . . . . . . . . 3–15

Striping and Mirroring in the Same Storageset. . . . . . . . . . . . . . . . . . . . . . . . . . 3–17

CLONE Steps for Duplicating Unit Members . . . . . . . . . . . . . . . . . . . . . . . . . . 3–20

Controller Port ID and Unit Numbers in Transparent Failover Mode . . . . . . . . 3–28

Controller Port ID Numbers and Unit Numbers in Mulitple Bus Failover

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–29

LUN Presentation Using Unit Offset on a Per-Host Basis . . . . . . . . . . . . . . . . . 3–30

Storageset Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–32

PTL Naming Convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–34

PTL Addressing in a Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–35

Locating Devices using PTLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–36

Partitioning a Single-Disk Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–37

Chunk Size Larger than the Request Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–48

Chunk Size Smaller than the Request Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–49

Moving a Storageset from one Subsystem to Another . . . . . . . . . . . . . . . . . . . . 3–71

Troubleshooting: Host Canno t Acc es s Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–12

Xfer Rate Region of the Default Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–24

Regions on the Device Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–25

Unit Status on the Cache Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–29

Fibre Channel Host Status Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–32

Single Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2

Dual-Redundant Controller Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–8

Single-Battery ECB SSB Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–27

Dual-battery ECB SBB Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–27

Location of GLMs in Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–32

I/O Module Locations in a BA370 Enclosure. . . . . . . . . . . . . . . . . . . . . . . . . . . 5–39

Cache-Module Memory Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–42

Installing a DIMM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–44

Battery Disable Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–49

Location of Write-Protection Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–4

Upgrading Device Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–11

Pass-through Device Reset Event Sense Data Response Format . . . . . . . . . . . . .D–2

T emplate 01 - Last Failure Event Sense Data Response Format. . . . . . . . . . . . . .D–4

Template 04 - Mu lt ip l e -Bus Failove r Eve n t Se n se Da ta Respon se Format . . . . .D–5

xiii

Template 05 - Failover Event Sense Data Response Format . . . . . . . . . . . . . . . . D–7

Template 11 - Nonvolatile Parameter Memory Component Event Sense Data

Response Form at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–8

Template 12 - Backup Battery Failure Event Sense Data Response Format. . . . D–9

Template 13 - Subsystem Built-In Self Test Failure Event Sense Data

Response Form at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–11

Template 14 - Memory System Failure Event Sense Data Response Format . . D–12
Temp l at e 41 - Devi ce Servic es N o n- Tra ns f er Er ro r Event Sense Da ta

Response Form at . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–13

Template 51 - Disk Transfer Error Event Sense Data Response Format. . . . . . D–15

Structure of an Instance Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–16

Instance Code Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–16

Structure of a Last Failure Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–36

Last Failure Code Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–36

Tables

xv

Key to Figure 1–1 The HSG80 Subsystem . . . . . . . . . . . . . . . . . . .1–3

Controller Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–4

Key to Figure 1–3 HSG80 Array Controller–Fibre Channel

Copper Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–9

Key to Figure 1–4: Opti onal Maintenance Port Cable for a

T erminal Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–10

Key to Figure 1–4 HSG80 Array Controller–Fibre Channel

Optical cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1–11

Cache Module Memory Con f igurations. . . . . . . . . . . . . . . . . . . . . .1–18

Cache Policies and Cache Module Status . . . . . . . . . . . . . . . . . . . .1–22

Cache Policies Resulting and ECB Status . . . . . . . . . . . . . . . . . . . .1–24

ECB Capacity Based on Memory Size. . . . . . . . . . . . . . . . . . . . . . .1–29

Key to Figure 2–4 Cabling for S ingle Configur ation (copper). . . . .2–14

Key to Figure 2–5 Cabling for S ingle Configuration (optical). . . . .2–15

Key to Figure 2–6 Cabling for Dual-Redundant Conf iguration

with Two Hubs (copper) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–17

Key to Figure 2–7 Cabling for Dual-Redundant Conf iguration

with Two Hubs (optical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–18

Key to Figure 2–8 Cabling for Dual-Redundant Conf iguration

with One Hub (copper) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–20

Key to Figure 2–9 Cabling for Dual-Redundant Conf iguration

with One Hub (optical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2–21

Controller Limitations for RAIDsets . . . . . . . . . . . . . . . . . . . . . . . . .3–3

A Comparison of Different Kinds of Storagesets. . . . . . . . . . . . . . . .3–8

Maximum Chunk Sizes for a RAIDs et . . . . . . . . . . . . . . . . . . . . . .3–50

Unit Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–54

Troubleshooting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–4

Event-Code Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–19

FMU SET Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–20

xvi

VTDPY Key Sequences and Commands. . . . . . . . . . . . . . . . . . . . . 4–23

Device Map Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–25

Device Status Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–26

Device-Port Status Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–28

Unit Status Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–29

Fibre Channel Hos t Status Display- Known Hosts (Connections) . 4–32

Fibre Channel Host Status Display- Port Status . . . . . . . . . . . . . . . 4–33

Fibre Channel Hos t St atus Display- Link Error Counte r s . . . . . . . 4–33

Tachyon First Digit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–35

Tachyon Second Digi t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–35

DILX Control Sequences. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–37

Data Patterns for Phase 1: Write Test . . . . . . . . . . . . . . . . . . . . . . . 4–38

DILX Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–40

Cache Module Memory Con f igurations. . . . . . . . . . . . . . . . . . . . . . 5–42

HSUTIL Messages and Inquiries . . . . . . . . . . . . . . . . . . . . . . . . . . 6–14

Cache Module Memory Con f igurations. . . . . . . . . . . . . . . . . . . . . . 6–20

Recall and Edit Command Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–4

ADD UNIT Switches for Storagesets . . . . . . . . . . . . . . . . . . . . . . .B–28

POWEROFF Switch Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–84

SET controller Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–104

EMU Set Point Temperatures. . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–114

SET unit-number Switc hes for Exi sting Containers . . . . . . . . . . .B–138

Solid OCP Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C–3

Flashing OCP Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C–8

Instance Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–18

Controller Restart Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–37

Last Failure Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–38

Recommended Repair Action Codes . . . . . . . . . . . . . . . . . . . . . . .D–77

Component Identifier Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–82

Event Notification/Recovery Threshold Classifications . . . . . . . . .D–84

ASC and ASCQ Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D–85

Controller Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E–2

StorageWorks Environmental Specifications . . . . . . . . . . . . . . . . . . E–3

Preface

xvii

This book describes the features of the HSG80 array controller and configuration
procedures for the controller and storagesets running Array Controller Softw are
(ACS) Version 8.2G.

This book does not con tain information about the operating envi ronments to which
the controller may be connected, nor does it co ntain detailed informa tion about
subsystem enclosures or their components. See the documentation that
accompanied these peripherals for information about them.

xviii

Precautions

Follow these precau tions when ca rr y i ng o ut th e pro cedures in th i s
book.

Electrostatic Discharge Precautions

Static electricity collects on all nonconducting material, such as paper,
cloth, an d plastic. An ele ctrostatic dis charge (ESD) can easily damage a
controller or other subsystem component even though you may not see
or feel the discharge. Follow these precautions whenever you’re
servicing a subsystem or one of its components:

n

Always use an ESD wrist stra p when s ervicing the controlle r or
other components in the subsystem. Make sure that the strap
contacts bare skin, fits snugly, and that its grounding lead is
attached to a bus that is a verified earth ground.

n

Before touching any circuit board or component, always touch a
verif iable earth ground to disc harge any static electricity that may
be present in you r clothing.

n

Alwa y s keep circuit boards an d component s away from
nonconducting material.

n

Always keep cl othing away from circuit boards and components.

n

Always use antis tatic bags and grounding mats for storing circuit
boards or component s duri ng replacement procedures.

n

Always keep the ESD cover over the program card when the card is
in the controller. If you remove the card, put it in its ori ginal
carrying case. Never touch the conta cts or twist or bend the card
while you’re handling it.

n

Never touch the connector pins of a cable when it is attached to a
component or host.

Component Precaution

System components referenced in this manual comply to regulatory
standards docu mented herein. Use of other components in their place
may violate country standards, negate regulatory compliance, or
invalidate the warra nty on your product.

Maintenance Port Precautions

The maintenance port gen era tes, uses, and radiates radio-frequency
energy through cables that are connected to it. This energy may
interfere wit h radio and television reception. Do not leave a cable
connected to this port when you’re not communicating with the
controller.

xix

xx

Conventions

This book uses th e following typogr aphical conventio ns and special
notices to help you find what you’re looking for.

Typographical Conventions

Convention Meaning

ALLCAPS BOLD

ALLCAPS Command discussed within text, for exam ple:

Monospaced Screen display.

Sans seri f it a lic Command variable or numeric value that you

italic Reference to other books or publications, for

.

.

.

“this controller” The controller serving your current CLI session

“other controller” The controller in a dual-redundant pair that’s

Command syntax that mu st be ent ered exactly as
shown, for example:

SET FAILOVER COPY=OTHER_CONTROLLER

“Use the SHOW SPARESET command t o show
the contents of the spareset.”

supply, for example: SHO W RAIDset-name or

SET THIS_CONTROLLER ID=(n,n,n,n,)

example: “See the HSG80 Array Controller ACS
V8.2 Release Notes for details.”

Indicates that a portion of an example or figure
has been omitted.

through a local or remote terminal.

connected to the cont roller serving your current
CLI session.

Special Notices

xxi

This book doesn’t contain detailed desc riptions of standard safety
procedures. However, it does contain warni ngs for procedures that
could cause personal injury and cautions for procedures that could
damage the controller or its related components . L ook for these
symbols when you’re carrying out the procedures in this book:

Warning A warning indicates th e presence of a hazard that can cause
personal injury if you do not observe the precautions in the text.

Caution A caution indicates the presence of a hazard that might
damage hardware, corrupt software, or cause a loss of data.

Tip A tip provides alternative methods or procedures that may not be
immediately obvious. A tip may also aler t cus tomers that the
controller’s behavior being discussed is different from prior software or
hardware versions.

Note A note provides additional information that’s related to the
completio n of an instruction or procedure.

xxii

Required Tools

You wil l ne ed th e f ollowing tools to se r v ic e th e contr ol l er, cache
module, external cache battery (ECB), the Power Verification and
Addressing (PVA) module, the Gigabit Link Module (GLM), and the
I/O module:

n

A flathead screwdri v er for looseni ng and tighte ning the I/O module
retaining s crews.

n

A small phillips screwdriver for loosening and tigh tening the GLM
access do o r s cr ews .

n

An anti s tatic wrist strap .

n

An antistatic mat on which to place modules during servicing.

n

A Storage Building Block (SBB) Extractor for remo ving
StorageWorks building blocks. This tool is not required, but it will
enable you to perform more efficiently.

Related Publications

The fo ll ow in g table list s some of the do cuments th a t ar e related to th e
use of the controller, cache module, and external cache battery.

xxiii

Document Title Part Number

Fibre Ch annel Ar b it r at ed Lo op H u b
(DS-DHGGA-CA) User’s Guide

KGPSA PCI-to-Fibre Channel Host Adapter EK–KGPSA–UG
DIGITAL StorageW orks Ultra SCSI RAID

Enclosure (BA370-S eries) User’s Guide
The RAIDBOOK—A Source for RAID

Technology
DIGITAL StorageWorks HSG80 Array

Controller ACS V8.2 Release Notes

EK–DHGGA–UG

EK–BA370–UG

RAID Advisory
Board

AA–RDY8A–TE

xxiv

Revision History

This is a rev ised document. Prev ious documents include:

EK-HSG80-UG .A01 ACS Version 8.0 January 1998

CHAPTER 1

General Description

This chapter i llustrates and describes in general terms your subsystem and its major
components: the HSG80 array controller, its cache module, and its external cache
battery. See the Fibre Channel Arbitrated Loop Hub User’s Guide and the KGPSA
PCI-to-Fibre Channel Hos t Adapter User Guide for information about the fibre
channel arbitrated loop hub and adapter that connect the subsystem to your host.

1–1

1–2 HSG80 User’s Gui de

The HSG80 Array Controller Subsystem

Take a few moments to familiarize yourself with the major components
of the HSG80 Array Controlle r subsys tem. Figure 1–1 shows the
components of a typical installation which includes:

n

One BA370 rack-mountable pedestal enclosure.

n

Two controllers, each supported by their own cache module.

n

T wo ex ternal cache bat ter ies (ECBs ) in one Stora ge Build ing Bl ock
(SBB), which provide backup power to the cache modules during a
primary powe r failure.

n

One environmental monitoring unit (EMU) that monitors the
subsystem’s environment, and alerts the controller of equipment
failures that could cause an abnormal environment.

n

One power verification and addressing (PVA) module that provides
a unique address to each enclosure in an ex tended subsystem.

n

Six I/O modules that in tegrate the SSB shelf with either an 8-bit
single-ended, 16-bit single-ende d, or 16-bit differ ential SCSI bus.

n

Two cache modules, which support non volatile memory and
dynamic cache policies to protect the availability of its unwritten
(write-back) data.

Figure 1–1 The HSG80 Subsystem

12

11

4x

10

9

8

7

General Descrip ti on 1–3

1

2

3

6x

6

5

4

CXO6453A

Table 1–1 Key to Figure 1–1 The HSG80 Subsystem

Item Description Part No.

1 BA370 rack-mountable enclosure DS–BA370–AA
2 Cooling fan DS–BA35X–MK
3 I/O module 70–32876–01
4 AC input module DS–BA35X–HE
5 PVA module DS–BA35X–EC
6 Cache module B 70–33256–01
7 Cache module A 70–33256–01
8 HSG80 controller B 70–33259–01
9 HSG80 controller A 70–33259–01

10 EMU 70–32866–01

1–4 HSG80 User’s Gui de

Table 1–1 Key t o Fig u re 1–1 The HSG80 Subsystem (Continued)

Item Descripti on Part No.

11 180-watt power supply DS–BA35X–HH
12 ECB, single

Summary of HSG80 Features

Ta ble 1–2 summarize s the featu r es of the controller.

Table 1–2 Controller Features

Controller Failover

Topology

Supported Operating Systems

Host protocol
Host bus interconnect

ECB, dual

Feature Supported

n

Transparen t Failov er

n

Multiple Bus Failover

n

FC–AL

n

8 nodes per loop; maxi mum
4 initiators per loop

n

single and dual host
adapter(s)

n

2 controller subsystems;
maximum 4 controllers (2
dual-redundant
configurations)

n

128 LUNs in Transparent
and Multiple Bus F ailover
Mode

n

WINNT/Intel

n

WINNT/Alpha

n

FC–AL

n

Copper
Optical : MultiMode 50
Micron
(Do not mix media types)

DS–HS35X–BC
DS–HS35X–BD

n

Gigabit link module (GLM)

General Descrip ti on 1–5

Table 1–2 Controller Features (Continued)

Feature Supported

n

Device protocol

Device bus interconnect

SCSI–2

n

Limited SCSI–3

n

Ultra/Fast Wide Sin g le­ended

n

Number of SCSI device ports
Number of SCSI device tar gets per

6

n

12

port

n

Maximum number of SCSI

72

devices

n

Disk Drives

4 and 9 GB Ultra &
Fast Wide

n

18 GB Ultra

n

4 GB 10K Ultra

n

RAID levels supported

0

n

1

Cache C ap acity

Caching Feature s

Maximum number of RAID-5 and
RAID-1 storagesets

Maximum number of RAID-5
storagesets

n

0+1

n

3/5

n

64 MB and 128 MB
(32 MB DIMMs only)

n

256 MB and 512 MB
(128 MB DIMMs only)

n

Mirrored Cache

n

Sequential Read Ahead

n

Graceful Power Down Policy

n

UPS support with “auto
cache flus h ”

n

30

n

20

1–6 HSG80 User’s Gui de

Table 1–2 Controller Features (Continued)

Feature Supported

n

Maximum number of RAID-5,

45

RAID-1, and RAID-0 storagesets

n

Maximum number of partiti ons

8

per storageset or individual disk

n

Maximum number of units
presented to each host

Maximum number of devices per

16 (8 on each of 2 ports) This
is a driver li m i t ation.

n

48

unit

n

Serial interconnect speed
Maximum device, storageset, or

1 GB/second

n

512 GB LUN capacity

unit size

n

Configuration Save

Transfer configuration from
HSZ70 subsyste m to HSG80
controller

n

Transfer configuration from
ACS V 8.0 to ACS V 8.2

n

General Features

Host Modes/Access
Privileges

n

Persistent Reserve s

n

Program card updates

n

Device warm swap

n

Utiliti es to test disks