Nexsan Unity, Unity2200, Unity6900, Unity4400 Reference Manual

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HYPER-UNIFIED STORAGE

Nexsan Unity

Storage Expansion

Reference Guide

Firmware v. 6.0

NEXSAN | 325 E. Hillcrest Drive, Suite #150 | Thousand Oaks, CA 91360 USA

Printed Thursday, August 15, 2019 | www.nexsan.com

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Trademarks

Nexsan® is a trademark or registered trademark of Nexsan T echnologies, Inc. The Nexsan logo is a r egistered trademark of Nexsan Technologies, Inc.

Allother trademarks and registered trademarks are the property of their respective owners.

Patents

This pr oduct isprotected by one or more of the following patents, and other pending patent applications worldwide:

United States patents US8,191,841, US8,120,922;

United Kingdom patents GB2466535B, GB2467622B, GB2467404B, GB2296798B, GB2297636B

Regulatory Compliance

United States Statement for FCC: This equipment has been tested and found to comply 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 equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Electromagnetic Emissions: FCC Class A, EN 55022 Class A, EN 61000-3-2/-3-3, CISPR 22 Class A, ICES-003 Electromagnetic Immunity: EN 55024/CISPR 24, (EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN61000-4-8, EN61000-4-11)

Safety: CSA/EN/IEC/UL 60950-1 Compliant, UL or CSA Listed (USA and Canada), CE Marking (Europe) RoHS: RoHS2 (Global) Other international regulatory compliance: VCC(Japan) California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. Perchlorate Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate.

About this document

Unauthorized use, duplication, or modification of this document in whole or in part without the written consent of Nexsan Technologies, Inc. is strictly prohibited. Nexsan Technologies, Inc. reserves the right to make changes to this manual, as well as the equipment and software described in this manual, at any time without notice. This manual may contain links to Web sites that were current at the time of publication, but have since been moved or become inactive. It may also contain links to sites owned and operated by third parties. Nexsan is not responsible for the content of any such third-party site.

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Contents

Contents iii

Chapter 1: Unity Storage Expansion overview 11

Storage capacities by Unity Storage System 12 Connection and configuration options 13 Components and features 14

Front and top views 14 Rear views 16

Unity Storage Expansions 19

About the SAS I/O controllers 24

Making SAS connections 24 About the power supply units (PSUs) 24 About the disk drives and drive carriers 25 Disk drive specifications 28

Unity2200 and UNITY2200X 28

US316 28

UNITY4400, UNITY6900, and US224 29

US424 29

US460 30 Cable specifications 30

Chapter 2: Installing Unity Storage Systems 33

Preparing for the installation 34 Package contents 34

UNITY2200 Storage System 34 UNITY4400 Storage System 35 UNITY6900 Storage System 35 UNITY2200X Storage Expansion 36 US224 36 US316 37 US424 38 US460 38 Components not included in your package 39

Installing a Unity2200, Unity2200X, or US316 in a rack 40 Installing a Unity4400, Unity6900, or US224 in a rack 44

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Contents

Installing a US424 in a rack 48 Installing a US460 in a rack 52

Install CMA arms onto the rack 54

Installing the disk drives in the Unity2200, Unity2200X, and US316 56 Installing the disk drives in the US224, Unity4400, and Unity6900 58 Installing the disk drives in the US424 59 Installing the disk drives in the US460 60

Chapter 3: Connecting and powering on 61

Basic configurations 62 Connecting a UNITY2200X to a UNITY2200 62 Connecting a US224 to a Unity4400 or Unity6900 63 Connecting a US316 to a Unity4400 or Unity6900 64 Connecting a US424 to a Unity4400 or Unity6900 65 Connecting a US460 to a Unity4400 or Unity6900 66 Cascade configurations 68

Unity4400 68

Unity6900 68 Cascading the Unity4400 Storage System 69 Cascading the Unity6900 Storage System 71

Connecting the power cords 74 Powering on 75

Powering on all other Unity enclosures 75

Powering on the US460 75

Chapter 4: Monitoring 77

Monitoring power supply units 78 Monitoring enclosures 81

Drive carrier LEDs 82 US460 Front panel LEDs 82

Control panel LEDs 82

Rear LEDs 83

Monitoring disk drives 85

Chapter 5: Solving problems 89

General troubleshooting tips 90

If you need to power down your equipment 90

Powering down 91 Replacing a controller 91 Removing a disk drive 92 Replacing a PSU 93 Removing a Unity Storage Expansion 94

Deleting a storage pool 94 Removing a Unity Storage System 96

Prerequisites 96

Appendix A: Technical specifications 99

Unity2200 Expansion general specifications 100 US224 general specifications 101 US316 general specifications 103

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Contents

General specifications for 4U Unity Storage Expansions 104

Appendix B: Regulatory compliance 107

Regulatory compliance statements 108 Regulatory agency compliance 109

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About this document

This Unity Storage Expansion Reference Guide provides information and steps for installing and connecting the following Nexsan Unity Unity hardware Storage Systems:

Nexsan UNITY2200™ Storage System

Nexsan UNITY4400™ Storage System

Nexsan UNITY6900™ Storage System

Nexsan UNITY2200™ Storage Expansion

Nexsan US224™ Storage Expansion

Nexsan US316™ Storage Expansion

Nexsan US424™ Storage Expansion

Nexsan US460™ Storage Expansion

This Reference Guide assumes that you are familiar with Serial Attached SCSI (SAS) technology, computer hardware, data storage and network administration terminology and tasks.

Because this guide provides information that can be used to manage one or more Nexsan Unity Storage Expansions, the generic term “storage system” is used to refer to the controller, disk drives, and expansions being used together for data storage.

Many of the terms and concepts referred to in this Reference Guide are known to computer users by multiple names. This terminology is used:

I/O Controller (also known as an I/O module, controller or controller node)

Disk drive (also known as hard disk drive (HDD) or hard disk, and solid state disk drive (SSD)

HBA (also known as Host Bus Adapter or SAS Adapter)

Audience

This guide has been prepared for the following audience:

IT system administrators

Engineers

Technicians

Any qualified NST/Unityadministrator.

Nexsan Unity www.nexsan.com vii

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About this document

Conventions

Here is a list of text conventions used in this document:

Convention Description

underlined blue

boldface Text that refers to labels on the physical unit or interactive items in the graphical user

monospace

monospace bold

italics System messages and non-interactive items in the graphical user interface (GUI)

Cross-references, hyperlinks, URLs, and email addresses.

interface (GUI).

Text that is displayed in the command-line interface (CLI) or text that refers to file or directory names.

Text strings that must be entered by the user in the command-line interface or in text fields in the graphical user interface (GUI).

References to Software User Guides

Notes, Tips, Cautions, and Warnings

Note Notes contain important information, present alternative procedures, or call attention to certain items.

Tip Tips contain handy information for end-users, such as other ways to perform an action.

CAUTION: In hardware manuals, cautions alert the user to items or situations which may cause

damage to the unit or result in mild injury to the user, or both. In software manuals, cautions alert the user to situations which may cause data corruption or data loss.

WARNING: Warnings alert the user to items or situations which may result in severe injury or death to the user.

Contacting Nexsan

For questions about Nexsan products, please visit the Nexsan support Web page, and the Nexsan Unity

Documents & Online Help page. If you are unable to find the answer to your question there, please see our

contact information below.

Service and support

Nexsan's Technical Services Group provides worldwide assistance with installation, configuration, software support, warranty, and repair for all Nexsan products. A variety of service and support programs are available to provide you with the level of coverage and availability your operation requires.

Nexsan Unity Documentation & Online Help page:

https://helper.nexsansupport.com/unt_ downloads.html

Unity Online Help page:

https://helper.nexsansupport.com/unt_ onlinehelp.html

Nexsan Unity Storage Expansion Reference Guide v. 6.0 Unity viii

Contact Nexsan Unity support:

https://helper.nexsansupport.com/unt_support

Worldwide Web site:

www.nexsan.com

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Chapter 1:Unity Storage Expansion overview

This document describes and explains how to install and monitor the Nexsan Unity Storage Systems:

Nexsan UNITY2200™ Storage System

Nexsan UNITY4400™ Storage System

Nexsan UNITY6900™ Storage System

Nexsan UNITY2200X™ Storage Expansion

Nexsan US224™ Storage Expansion

Nexsan US316™ Storage Expansion

Nexsan US424™ Storage Expansion

Nexsan US460™ Storage Expansion

This section includes these topics:

Storage capacities by Unity Storage System 12

Connection and configuration options 13

Components and features 14

Nexsan Unity www.nexsan.com 11

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Storage capacities by Unity Storage System

Here is a brief listing of maximum storage capacities by Unity Storage System.

System capacity

Unity Storage System

Unity2200 243 TB 280 TB Entry-level system

Unity4400 737 TB 1.7 PB Mid-level system

Unity6900 1.6 PB 4.6 PB High-end system

Maximum storage

capacity with

SDDs

Maximum storage

capacity with

HDDs

Description

The UNITY2200 storage system can be used standalone as well.

Daisy chain support: One storage system with up to three storage expansions.

Cascade and daisy chain support: One storage system with up to eight storage expansions.

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Chapter 1: Unity Storage Expansion overview

Connection and configuration options

This table lists the Unity Storage Systems and their supported Unity Storage Expansions.

Nexsan Unity Storage Systems

UNITY2200 1, plus the

UNITY4400 Upto3 of any

UNITY6900 Upto 8 of any

UNITY2200X

front bay

US224 US316 US424 US460

combined Storage Expansions, plus the front bay

Upto3 of any combined Storage Expansions, plus the front bay

Upto 8 of any combined Storage Expansions, plus the front bay

Upto3 of any combined Storage Expansions, plus the front bay

Upto 8 of any combined Storage Expansions, plus the front bay

Upto3 of any combined Storage Expansions, plus the front bay

Upto 8 of any combined Storage Expansions, plus the front bay

► What's next

Basic configurations on page62

Cascade configurations on page68

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Components and features

This section shows the main components and capacities available in Unity Storage Systems Unity hardware.

Front and top views

This section shows the Unity Storage Expansion front and top views (US460), with front bezels removed.

Figure 1-1: UNITY2200 and UNITY2200X

Figure 1-2: UNITY4400, UNITY6900, and US224

Figure 1-3: US316

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Chapter 1: Unity Storage Expansion overview

Figure 1-4: US424

Figure 1-5: US460 top view

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Components and features

Rear views

This section shows the Unity rear views.

Figure 1-6: UNITY2200

Item Name Description

1 Power supply unit 1200W redundant power supplies with PMBus

2 Fan assembly 4x 80mm and 4x 40mm PWM cooling fans

Redundant cooling

3 On-board 10GigE LAN ports (2 per

controller)

4 KVM connections USB, VGA and Serial connections for remote

5 Storage connectivity Dual-port SAS PCIe to HD Mini-SAS HBA

6 Optional connectivity (up to two): Dual-port

8Gb Fibre Channel to Express HBA

Right port: Primary data network interface (nx0 optional)

Left port: Management Interface (nx99) and IPMI interface

console access to the Unity2200

You can use these slots for additional network cards, which can be any of these supported NICs:

10 GbE dual-port HBA with RJ-45 interfaces

10 GbE dual-port HBA with SFP+ optical interfaces

8 Gb FC dual-port HBA

16 Gb FC dual-port HBA

1 GbE quad-port HBA with RJ-45 interfaces

1 GbE dual-port HBA with RJ-45 interfaces

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Chapter 1: Unity Storage Expansion overview

Figure 1-7: UNITY4400

Item Name Description

1 Power supply unit 1200W redundant power supplies with PMBus

2 Fan assembly 4x 80mm and 4x 40mm PWM cooling fans

Redundant cooling

3 On-board 10GigE LAN ports (2 per

controller)

4 KVM connections USB, VGA and Serial connections for remote

5 Storage connectivity Dual-port SAS PCIe to HD Mini-SAS HBA

6 Optional connectivity (up to two): Dual-port

8Gb Fibre Channel to Express HBA

Right port: Primary data network interface (nx0 optional)

Left port: Management Interface (nx99) and IPMI interface

console access to the Unity2200

You can use these slots for additional network cards, which can be any of these supported NICs:

10 GbE dual-port HBA with RJ-45 interfaces

10 GbE dual-port HBA with SFP+ optical interfaces

8 Gb FC dual-port HBA

16 Gb FC dual-port HBA

1 GbE quad-port HBA with RJ-45 interfaces

1 GbE dual-port HBA with RJ-45 interfaces

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Components and features

Figure 1-8: UNITY6900

Item Name Description

1 Power supply unit 1200W redundant power supplies with PMBus

2 Fan assembly 4x 80mm and 4x 40mm PWM cooling fans

Redundant cooling

3 On-board 10GigE LAN ports (2 per

controller)

4 KVM connections USB, VGA and Serial connections for remote

5 Storage connectivity Quad-port SAS PCIe to HD Mini-SAS HBA

6 Optional connectivity (up to two): Dual-port

8Gb Fibre Channel to Express HBA

Right port: Primary data network interface (nx0 optional)

Left port: Management Interface (nx99) and IPMI interface

console access to the Unity2200

You can use these slots for additional network cards, which can be any of these supported NICs:

10 GbE dual-port HBA with RJ-45 interfaces

10 GbE dual-port HBA with SFP+ optical interfaces

8 GbE FC dual-port HBA

16 GbE FC dual-port HBA

1 GbE quad-port HBA with RJ-45 interfaces

1 GbE dual-port HBA with RJ-45 interfaces

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Unity Storage Expansions

This section illustrates Unity Storage Expansion rear views.

Figure 1-9: UNITY2200X

Chapter 1: Unity Storage Expansion overview

Item Name Description

1 LAN Port Not used

2 Storage unit status LED Green: Initialization successful

Red: Initialization failure

3 Unit ID status LED On/Off

4 BMC Reset button Resets the base management controller

5 SAS IN ports Serial Attached SCSI IN ports from the Storage System

6 SAS OUT ports SAS OUT ports to another storage unit

7 SAS link status LEDs

(2IN, 2 OUT)

Green: All four physical layers (PHY) of each port connected with consistent link speed (12 G or 6G)

Red: Single PHY degraded link speed or disconnected

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Components and features

Figure 1-10: US224

Item Name Description

1 LAN Port Not used

2 Storage unit status LED Green: Initialization successful

Red: Initialization failure

3 Unit ID status LED On/Off

4 BMC Reset button Resets the base management controller

5 SAS IN ports Serial Attached SCSI IN ports from the Storage System

6 SAS OUT ports SAS OUT ports to another storage unit

7 SAS link status LEDs

(2IN, 2 OUT)

Green: All four physical layers (PHY) of each port connected with consistent link speed (12 G or 6G)

Red: Single PHY degraded link speed or disconnected

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Figure 1-11: US316

Chapter 1: Unity Storage Expansion overview

Item Name Description

1 LAN Port Not used

2 Storage unit status LED Green: Initialization successful

Red: Initialization failure

3 Unit ID status LED On/Off

4 BMC Reset button Resets the base management controller

5 SAS IN ports Serial Attached SCSI IN ports from the Storage System

6 SAS OUT ports SAS OUT ports to another storage unit

7 SAS link status LEDs

(2IN, 2 OUT)

Green: All four physical layers (PHY) of each port connected with consistent link speed (12 G or 6G)

Red: Single PHY degraded link speed or disconnected

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Components and features

Figure 1-12: US424

Item Name Description

1 LAN Port Not used

2 Storage unit status LED Green: Initialization successful

Red: Initialization failure

3 Unit ID status LED On/Off

4 BMC Reset button Resets the base management controller

5 SAS IN ports Serial Attached SCSI IN ports from the Storage System

6 SAS OUT ports SAS OUT ports to another storage unit

7 SAS link status LEDs

(2IN, 2 OUT)

Green: All four physical layers (PHY) of each port connected with consistent link speed (12 G or 6G)

Red: Single PHY degraded link speed or disconnected

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Item Name Description

Chapter 1: Unity Storage Expansion overview

Figure 1-13: US460

1 Power supply

units

2 Fan

assemblies

3 SAS Ports Storage connectivity: SAS Quad port PCIe to Serial Attached SCSI (HD Mini-

For more information, see:

About the SAS I/O controllers on the next page

About the power supply units (PSUs) on the next page

About the disk drives and drive carriers on page25

Disk drive specifications on page28

Cable specifications on page30

Two 1650W PSUs, hot swappable and redundant

AC Input voltage:200-240VAC auto-ranging, 47Hz-63Hz input (high line power only)

Cooling system:

4 x 80mm and 4 x 40mm PWM cooling fans

Redundant cooling

SAS) host bus adapter

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Components and features

About the SAS I/O controllers

Unity Storage Systems and Unity Storage Expansions connect using HBA SAS I/O controllers on the back of the enclosures.

Making SAS connections

The Unity2200 connects to the UNITY2200X from the lower, on-board HBA SAS ports, while the UNITY4400 and UNITY6900 connect from the upper, add-on SAS ports to the lower on-board HBA SAS ports on the US224, US316, US424, or US460.See Connection and configuration options on page13.

► SAS I/O controller LEDs and ports

Each controller also has status LEDs on the front, as described in Monitoring enclosures on page81. The diagram below identifies the rear I/O controller ports and LEDs.

► Controller slot numbers

This diagram identifies controller slot order for a typical Unity Storage Expansion—slot A is on the left and slot B is on the right.

Figure 1-14: US424 SAS I/O controller slots

About the power supply units (PSUs)

The cooling fans in each PSU run on separate circuits from the power supply. Therefore, if one PSU fails, its fans continue to run on power supplied by the other PSU.

Note PSUs are hot-swappable; see Replacing a PSU on page93 for more information.

► Maintaining correct airflow and cooling:

In addition to supplying power, the PSUs maintain proper airflow and cooling within the enclosure.

Because there are two PSUs, Unity Storage Systems can continue to operate even if one PSU fails. However, for proper operation and cooling, two PSUs with fully-functional fans must be installed at all times. A unit can run temporarily (for no more than five minutes) with a single PSU while you install a new one—you must install a second PSU as quickly as possible to maintain correct airflow and cooling.

CAUTION: Once you remove a failed PSU, you must replace it within five minutes or the remaining unit may overheat and shut down to prevent hardware damage. This type of shutdown is immediate—unexpected loss of data access and permanent data loss may occur.

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Chapter 1: Unity Storage Expansion overview

About the disk drives and drive carriers

Each disk drive is mounted in a drive carrier with a push-button lever for quick installation and removal. Each drive carrier has two LEDs, which indicate status as described in Monitoring disk drives on page85.

To maintain proper airflow and cooling inside the enclosure, drive slots cannot be left empty. Blank drive carriers are available to fill empty drive slots.

Disk drives are hot-swappable.

Figure 1-15: Example of US424 drive carrier front view

Note A disk drive must not be removed from its drive carrier. A disk drive removed from its carrier is not

covered by the hardware warranty.

► Drive slot numbers:

Figure 1-16: UNITY2200X drive slot numbers

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Components and features

Figure 1-17: US224 drive slot numbers

Figure 1-18: US316 drive slot numbers

Figure 1-19: US424 drive slot numbers

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Chapter 1: Unity Storage Expansion overview

Figure 1-20: US460 drive slot numbers

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Components and features

Disk drive specifications

Unity Storage System disk drives must be qualified by Nexsan and meet the specifications listed in this section. See also Technical specifications on page99 and the product data sheets, available at Nexsan.com.

Unity2200 and UNITY2200X

Disk drive specifications for these Unity storage expansions:

Feature Description

Form factor 3U 3.5” front-loading

Disk drives Up to 15 HDDsand one FASTier read drive

HDD drives:

7.2K 600 GB |900 GB | 1.2 TB |1.8 TB

10K: 2TB | 4TB | 6TB | 8TB | 10TB | 12TB

FASTier SSD drivesOne 800 GB drive per drive pack, option to upgrade to

1.92TB FASTier or 3.84TB drives

Cascadable? No

Hot-swap/hot-plug support

Interface SAS 3

Transfer rate 12.0 Gb/sec

Upgradable disk drive firmware?

Yes

US316

Disk drive specifications for these Unity storage expansions:

Feature Description

Form factor 3U 3.5” front-loading

Disk drives Up to 15 HDDsand one FASTier read drive

HDD drives:

7.2K 600 GB |900 GB | 1.2 TB |1.8 TB

10K: 2TB | 4TB | 6TB | 8TB | 10TB | 12TB

FASTier SSD drivesOne 800 GB drive per drive pack, option to upgrade to

1.92TB FASTier or 3.84TB drives

Cascadable? Yes

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Feature Description

Chapter 1: Unity Storage Expansion overview

Hot-swap/hot-plug support

Interface SAS 3

Transfer rate 12.0 Gb/sec

Upgradable disk drive firmware?

Yes

UNITY4400, UNITY6900, and US224

Disk drive specifications for these Unity storage expansions:

Feature Description

Form factor 2U 2.5” front-loading

Disk drives Supports up to 24 drives (SSD option)

SSD drives: 800 GB | 1.9TB | 3.8 TB | 7.6 TB

HDD drives

7.2K: 600 GB |900 GB | 1.2 TB |1.8 TB 10K: 2TB | 4TB | 6TB | 8TB | 10TB | 12TB

FASTier SSDdrives:800 GB per drive pack, option to upgrade to 1.92 TB FASTier or

3.84 TB drives. Not used when all data drives are SSDs.

Cascadable? Yes. See Connection and configuration options on page13

Hot-swap/hot-plug support

Interface SAS 3

Transfer rate 12.0 Gb/sec

Upgradable disk drive firmware?

Yes

US424

Disk drive specifications for these Unity storage expansions:

Feature Description

Form factor 4U 3.5” front-loading

Disk drives Supports up to 24 drives

HDD drives

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Components and features

Feature Description

.2K: 2TB | 4TB | 6TB | 8TB | 10TB | 12TB 10K: 2TB | 4TB | 6TB | 8TB | 10TB | 12TB

FASTier SSDdrives:800 GB per drive pack, option to upgrade to 1.92TB FASTier or 3.84TB drives

Cascadable? Yes

Hot-swap/hot-plug support

Interface SAS 3

Transfer rate 12.0 Gb/sec

Upgradable disk drive firmware?

Yes

US460

Disk drive specifications for these Unity storage expansions:

Feature Description

Form factor 4U 3.5” top loading

Disk drives

Supported drives: HGSTor Sandisk 2TB | 4TB | 6TB | 8TB | 10TB | 12TB

FASTier SSDdrives: 800GB FASTier per drive pack. Option to upgrade to

1.92TB FASTier or 3.84TB drives

Cascadable? Yes

Hot-swap/hot-plug support

Interface SAS 3

Transfer rate 12.0 Gb/sec

Upgradable disk drive firmware?

Yes

Cable specifications

To connect a Nexsan Unity Storage Expansion, use high-quality SAS cables that meet these length requirements:

Passive SAS

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Chapter 1: Unity Storage Expansion overview

Minimum length: 0.5 meters

Maximum length: 3 meters

Active cables

Any length

For updated disk drive information or to purchase approved SAS cables, please contact your Nexsan sales representative or reseller.

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Components and features

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Chapter 2

Chapter 2:Installing Unity Storage Systems

This chapter explains how to install Unity Storage Systems.

The chapter includes these topics:

Preparing for the installation 34

Package contents 34

Installing a Unity2200, Unity2200X, or US316 in a rack 40

Installing a Unity4400, Unity6900, or US224 in a rack 44

Installing a US424 in a rack 48

Installing a US460 in a rack 52

Installing the disk drives in the Unity2200, Unity2200X, and US316 56

Installing the disk drives in the US224, Unity4400, and Unity6900 58

Installing the disk drives in the US424 59

Installing the disk drives in the US460 60

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Preparing for the installation

► Before you begin:

1. Carefully read Safety notices on pageix.

2. Ensure ahead of time that you have chosen a suitable location for the enclosure and the rack; see

Technical specifications on page99.

3. Ensure that you have a Phillips screwdriver.

4. Have someone assist you during installation.

CAUTION: Acclimate new disk drives to room temperature for 2 hours before installation.

► To unpack the Unity Storage Expansions:

1. Remove all the components from packaging. Position hands under the chassis to pull it free from the foam insert.

Do NOT lift out the chassis from its packaging using the controller handles or attached rails.

2. Place the components on an anti-static surface until you are ready to use them.

Package contents

When you receive your Unity hardware shipment, check to ensure that no damage has been sustained to the packaging in transit. If any enclosure shows damage, you should file a damage claim with the carrier who delivered it. See also Components not included in your package

UNITY2200 Storage System

Your shipment includes these components:

Quantity Item description

1 Unity 2200 3U dual-controller chassis with 16-drive (3.5”) front bay enclosure (with front bezel)

Rack mounting hardware

2 Outer-rack rail assemblies (inner-chassis rails are already installed)

4 Mounting screws with 4 washers to attach outer-rack rails to the rack (1 on the front and 1 on

the back for both the left and right rail assemblies)

Disk drives

FASTier, SSD, and HDD drives. Check that the components included in your shipment correspond to your packing slip.

Cables and miscellaneous items

2 SAS cables (Mini SAS HD to Mini SAS HD)

2 Power cords

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Chapter 2: Installing Unity Storage Systems

Quantity Item description

2 KVM cables

1 Electrostatic discharge (ESD) wrist strap

1 DVD containing the Discovery wizard and documentation

UNITY4400 Storage System

Your shipment includes these components:

Quantity Item description

1 Unity4400 2U dual-controller chassis with 24-drive (2.5”) front bay enclosure (with front bezel)

Rack mounting hardware

2 Outer-rack rail assemblies (inner-chassis rails are already installed)

4 Mounting screws with 4 washers to attach outer-rack rails to the rack (1 on the front and 1 on

the back for both the left and right rail assemblies)

2 Long screws to secure the chassis to the rack from the front (attached to the chassis)

Disk drives

FASTier, SSD, and HDD drives. Check that the components included in your shipment correspond to your packing slip.

Cables and miscellaneous items

4 SAS cables (Mini SAS HD to Mini SAS HD)

2 Power cords

2 KVM cables

1 Electrostatic discharge (ESD) wrist strap

1 DVD containing the Discovery wizard and documentation

UNITY6900 Storage System

Your shipment includes these components:

Quantity Item description

1 Unity6900 2U dual-controller chassis with 24-drive (2.5”) front bay enclosure (with front bezel)

Rack mounting hardware

2 Outer-rack rail assemblies (inner-chassis rails are already installed)

4 Mounting screws with 4 washers to attach outer-rack rails to the rack (1 on the front and 1 on

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Package contents

Quantity Item description

the back for both the left and right rail assemblies)

2 Long screws to secure the chassis to the rack from the front (attached to the chassis)

Disk drives

FASTier, SSD, and HDD drives. Check that the components included in your shipment correspond to your packing slip.

Cables and miscellaneous items

4 SAS cables (Mini SAS HD to Mini SAS HD)

2 Power cords

2 KVM cables

1 Electrostatic discharge (ESD) wrist strap

1 DVD containing the Discovery wizard and documentation

UNITY2200X Storage Expansion

Your shipment includes these components:

Quantity Item description

1 Unity 2200 3U dual-controller chassis with 16-drive (3.5”) front bay enclosure (with front bezel)

Rack mounting hardware

2 Outer-rack rail assemblies (inner-chassis rails are already installed)

4 Mounting screws with 4 washers to attach outer-rack rails to the rack (1 on the front and 1 on

the back for both the left and right rail assemblies)

Disk drives

FASTier, SSD, and HDD drives. Check that the components included in your shipment correspond to your packing slip.

Cables and miscellaneous items

2 SAS cables (Mini SAS HD to Mini SAS HD)

2 Power cords

2 KVM cables

1 Electrostatic discharge (ESD) wrist strap

US224

Your shipment includes these components:

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Chapter 2: Installing Unity Storage Systems

Quantity Item description

1 US224 2U storage expansion (with front bezel)

Rack mounting hardware

2 Outer-rack rail assemblies (inner-chassis rails are already installed)

4 Mounting screws with 4 washers to attach outer-rack rails to the rack (1 on the front and 1 on

the back for both the left and right rail assemblies)

2 Long screws to secure the chassis to the rack from the front (attached to the chassis)

Disk drives

FASTier, SSD, and HDD drives. Check that the components included in your shipment correspond to your packing slip.

Cables and miscellaneous items

SAS cables (Mini SAS HD to Mini SAS HD)

2 Power cords

2 KVM cables

1 Electrostatic discharge (ESD) wrist strap

US316

Your shipment includes these components:

Quantity Item description

1 US316 3U dual-controller storage expansion with 16-drive (3.5”) front bay enclosure (with front

bezel)

Rack mounting hardware

2 Outer-rack rail assemblies (inner-chassis rails are already installed)

4 Mounting screws with 4 washers to attach outer-rack rails to the rack (1 on the front and 1 on

the back for both the left and right rail assemblies)

Disk drives

FASTier, SSD, and HDD drives. Check that the components included in your shipment correspond to your packing slip.

Cables and miscellaneous items

SAS cables (Mini SAS HD to Mini SAS HD)

2 Power cords

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Package contents

Quantity Item description

2 KVM cables

1 Electrostatic discharge (ESD) wrist strap

US424

Your shipment includes these components:

Quantity Item description

1 US424 expansion (with front bezel)

Rack mounting hardware

2 Outer-rack rail assemblies (inner-chassis rails are already installed)

4 Mounting screws with 4 washers to attach outer-rack rails to the rack (1 on the front and 1 on

the back for both the left and right rail assemblies)

2 Long screws to secure the chassis to the rack from the front (attached to the chassis)

Disk drives

FASTier, SSD, and HDD drives. Check that the components included in your shipment correspond to your packing slip.

Cables and miscellaneous items

SAS cables (Mini SAS HD to Mini SAS HD)

2 Power cords

2 KVM cables

1 Electrostatic discharge (ESD) wrist strap

US460

Your shipment includes these components:

Quantity Item description

1 US460 expansion (with front bezel)

Rack mounting hardware

2 Outer-rack rail assemblies (inner-chassis rails are already installed)

4 Mounting screws with 4 washers to attach outer-rack rails to the rack (1 on the front and 1 on

the back for both the left and right rail assemblies)

2 Long screws to secure the chassis to the rack from the front (attached to the chassis)

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Quantity Item description

Disk drives

FASTier, SSD, and HDD drives. Check that the components included in your shipment correspond to your packing slip.

Cables and miscellaneous items

SAS cables (Mini SAS HD to Mini SAS HD)

2 Power cords

2 KVM cables

1 Electrostatic discharge (ESD) wrist strap

Components not included in your package

Client computer

Network switches

Chapter 2: Installing Unity Storage Systems

Network cables

Recommended Acceptable

10GbE Ethernet:

CAT6a cable

1GbE Ethernet:

CAT6 cable

10GbE Fibre Multimode duplex LC/LC 50µ OM3 Fibre cable

10GbE Ethernet:

CAT6 or higher cable

1GbE Ethernet:

CAT5E or higher cable

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Installing a Unity2200, Unity2200X, or US316 in a rack

CAUTION: Unity Storage Systems and Expansions are heavy. Physical installation requires two people.

► Step 1: Remove the front bezel

1. Turn the keylock at the right end of the bezel to the unlock position.

2. Unhook the left end of the bezel from the chassis.

► Step 2: Install the outer-rack rails on the rack

1. Attach the RIGHT and LEFT outer-rack rails to the rack by inserting the hooks included on the rails into the holes provided on the rack. The hooks should be located in the TOP holes of the rack units selected.

2. Extend rail assemblies to fit the depth of the rack. Pull on the rear of the assembly until the hooks reach the back of the rack.

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Chapter 2: Installing Unity Storage Systems

3. Screw the rail to the rack using the mounting screws provided. The screws should be secured in the BOTTOM hole on the front and back of each rail assembly.

► Step 3: install the inner-rack rails (if necessary):

1. Ensure the Unity chassis is upright and locate the LEFT hand rail assembly.

2. Extend the inner rail toward the front of the rail assembly as far as possible, then depress the locking tab to pull it completely out and remove it from the rest of the rail assembly.

3. Place the inner rail on the side of the chassis, and make sure that you align the hooks of the chassis with the rail extension holes.

4. Slide the extension toward the front of the chassis until it clicks and locks into place.

5. Secure the inner-rail rack to the chassis with the mounting screws provided with your hardware installation package.

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Installing a Unity2200, Unity2200X, or US316 in a rack

6. Repeat these steps for the RIGHT inner-rack rail.

► Step 3: Install the Unity Storage Expansion on the rack

1. Lift the chassis from each side—not from the front and back.

2. Line up the inner-rack (chassis) rails with the front of the outer-rack rails.

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Chapter 2: Installing Unity Storage Systems

3. Slide the inner-rack rails into the outer-rack rails, keeping the pressure even on both sides. You have to depress the locking tabs when inserting.

4. When you push the chassis completely into the rack, you should hear the locking tabs click into position.

5. Tighten the thumbscrews that hold the front of the unit to the rack.

► What's Next:

Continue with Installing the disk drives in the Unity2200, Unity2200X, and US316 on page56.

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Installing a Unity4400, Unity6900, or US224 in a rack

CAUTION: Unity Storage Systems and Expansions are heavy. Physical installation requires two people.

► Step 1: Remove the front bezel

1. Turn the keylock at the right end of the bezel to the unlock position.

2. Unhook the left end of the bezel from the chassis.

► Step 2: Install the outer-rack rails on the rack

1. Attach the RIGHT and LEFT outer-rack rails to the rack by inserting the hooks included on the rails into the holes provided on the rack.

The hooks should be located in the TOP holes of the rack units selected (see image in Step 3).

2. Extend rail assemblies to fit the depth of the rack. Pull on the rear of the assembly until the hooks reach the back of the rack.

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Chapter 2: Installing Unity Storage Systems

3. Screw the rail to the rack using the mounting screws provided with your hardware installation package.

The screws should be secured in the MIDDLE hole of each of the rails.

► Step 3: Install the inner-rack rails (if necessary):

1. Ensure the Unity chassis is upright and locate the LEFT hand rail assembly.

2. Extend the inner rail toward the front of the rail assembly as far as possible, then depress the locking tab to pull it completely out and remove it from the rest of the rail assembly.

3. Place the inner rail on the side of the chassis, and make sure that you align the hooks of the chassis with the rail extension holes.

4. Slide the extension toward the front of the chassis until it clicks and locks into place.

5. Secure the inner-rail rack to the chassis with the mounting screws provided with your hardware installation package.

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Installing a Unity4400, Unity6900, or US224 in a rack

6. Repeat these steps for the RIGHT inner-rack rail.

► Step 4: Install the Unity Storage Expansion on the rack

1. Lift the chassis from each side—not from the front and back.

2. Line up the inner-rack (chassis) rails with the front of the outer-rack rails.

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Chapter 2: Installing Unity Storage Systems

3. Slide the inner-rack rails into the outer-rack rails, keeping the pressure even on both sides. You have to depress the locking tabs when inserting.

4. When you push the chassis completely into the rack, you should hear the locking tabs click into position.

5. Tighten the thumbscrews that hold the front of the unit to the rack.

Install the US460 in a rack

► What's Next:

Continue with Installing the disk drives in the Unity2200, Unity2200X, and US316 on page56.

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Installing a US424 in a rack

CAUTION: The Unity Storage Expansion is heavy. Physical installation requires two people.

► Step 1: Remove the front bezel

1. Turn the keylock at the right end of the bezel to the unlock position.

2. Unhook the left end of the bezel from the chassis.

► Step 2: Install the outer-rack rails on the rack

1. Attach the RIGHT and LEFT outer-rack rails to the rack by inserting the hooks included on the rails into the holes provided on the rack.

The hooks should be located in the TOP holes of the rack units selected (see image in Step 3).

2. Extend rail assemblies to fit the depth of the rack. Pull on the rear of the assembly until the hooks reach the back of the rack.

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Chapter 2: Installing Unity Storage Systems

3. Screw the rail to the rack using the mounting screws provided with your hardware installation package.

The screws should be secured in the MIDDLE hole of each of the rails.

► Step 3: install the inner-rack rails (if necessary):

1. Ensure the Unity chassis is upright and locate the LEFT hand rail assembly.

2. Extend the inner rail toward the front of the rail assembly as far as possible, then depress the locking tab to pull it completely out and remove it from the rest of the rail assembly.

3. Place the inner rail on the side of the chassis, and make sure that you align the hooks of the chassis with the rail extension holes.

4. Slide the extension toward the front of the chassis until it clicks and locks into place.

5. Secure the inner-rail rack to the chassis with the mounting screws provided with your hardware installation package.

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Installing a US424 in a rack

6. Repeat these steps for the RIGHT inner-rack rail.

► Step 4: Install the Unity Storage Expansion on the rack

1. Lift the chassis from each side—not from the front and back.

2. Line up the inner-rack (chassis) rails with the front of the outer-rack rails.

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Chapter 2: Installing Unity Storage Systems

3. Slide the inner-rack rails into the outer-rack rails, keeping the pressure even on both sides. You have to depress the locking tabs when inserting.

4. When you push the chassis completely into the rack, you should hear the locking tabs click into position.

5. Tighten the thumbscrews that hold the front of the unit to the rack.

► What's Next:

Continue with Installing the disk drives in the Unity2200, Unity2200X, and US316 on page56.

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Installing a US460 in a rack

CAUTION: Physical installation requires three people--two to move the enclosure into position in the rack, and one to guide and spot the others.

► Step 1: Install the outer-rack rails on the rack

1. From the inside of the rail kit, press the release latch to unlock the inner rails from the rack mount rails. Pull the inner rail out of the rack mount rail, and repeat for the remaining rail.

2. Install the inner rails onto the enclosure (if necessary):

a. Attach the inner rail by aligning the holes in the inner rail with the pegs on the side of the chassis and

sliding them forward to lock them in place.

b. From the side of the chassis, using the #2 Phillips-head screwdriver, attach the inner rails to the

chassis using the screws provided with the rail kit.

c. Repeat the previous steps to attach the other inner rail to the chassis.

3. Install the rack mount rails:

a. On the first rack location, from the rear of the rack, latch the rear rack mount clip. Repeat to connect

the other rear mount clip.

4. From the front of the rack, latch the front rack mount clip. Repeat to connect the other front rack mount clip.

Note Ensure that the front and rear of the rails are attached to the same U location.

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Chapter 2: Installing Unity Storage Systems

5. Grasping the inside rail on the rack mount rails, slide the rails until locked in the extended position.

► Step 2: Install the inner-rack rails (if necessary):

1. Ensure the Unity chassis is upright and locate the LEFT hand rail assembly.

2. Extend the inner rail toward the front of the rail assembly as far as possible, then depress the locking tab to pull it completely out and remove it from the rest of the rail assembly.

3. Place the inner rail on the side of the chassis, and make sure that you align the hooks of the chassis with the rail extension holes.

4. Slide the extension toward the front of the chassis until it clicks and locks into place.

5. Secure the inner-rail rack to the chassis with the mounting screws provided with your hardware installation package.

6. Repeat these steps for the RIGHT inner-rack rail.

► Step 3: Install the Cable Management Arm (CMA) (Optional)

Note If using a storage enclosure with a shorter depth you may not be able to use the CMA. Ensure the CMA

does not bind or bend. Improper installations could result in damage to cabling and components.

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Installing a US460 in a rack

Install CMA arms onto the rack

1. From the inside of the rack, slide the bracket over the 1U location below the rail kit.

2. Tighten the captive screw while pressing the CMA mounting bracket to the top of the U location.

3. Install the M4 screw in the lower hole in bracket.

4. Repeat the previous steps on the other CMA arm.

► Step 4: Install the Unity Storage Expansion on the rack

1. Lift the US460 chassis from each side—not from the front and back.

2. Line up the inner-chassis rails with the extended rack rails, until the rail locks engage.

3. Locate the blue tabs located on each of the inner rails, and slide them towards the front of the chassis. Push on the chassis.

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Chapter 2: Installing Unity Storage Systems

4. Push the US460 completely into the rack; you should hear the locking tabs click into position.

5. Tighten the thumbscrews that hold the front of the US460 to the rack.

► What's Next:

Continue with Installing the disk drives in the Unity2200, Unity2200X, and US316 on the next page.

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Installing the disk drives in the Unity2200, Unity2200X, and US316

This section explains how to install the disk drives in the UNITY2200, UNITY2200X, and US316.

CAUTION: Put on the ESD wrist strap before starting:

1. Slip the wrist loop over your hand (left or right), then tighten the loop against your wrist.

2. Attach the clip end of the anti-static wrist strap to a properly grounded metal surface.

► Installation order:

1. Install the FASTier Write Cache drive in the FIRST slot on the LEFT.

2. Install the FASTier Read Cache drive in the SECOND slot on the LEFT.

3. Install the disk drives in any order in the remaining slots.

► To install the drives on the Unity Storage Expansion:

1. Hold the disk drive so that the LEDs are on the bottom and THE LEVER IS FULLY OPEN.

2. Slide the disk drive into the drive slot using the lever until the drive locks into place.

3. Gently push the lever until it mates with the latch on the bottom of the drive slot and clicks into place.

4. Repeat these steps for all remaining disk drives.

Note To maintain proper airflow and cooling, a disk drive or a blank drive carrier must be installed in every slot

of the enclosure.

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► What's Next:

"Connecting and powering on" (page 61)

Chapter 2: Installing Unity Storage Systems

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Installing the disk drives in the US224, Unity4400, and Unity6900

This section explains how to install the SAS disk drives in the US224, Unity4400, and Unity6900

CAUTION: Put on the ESD wrist strap before starting:

1. Slip the wrist loop over your hand (left or right), then tighten the loop against your wrist.

2. Attach the clip end of the anti-static wrist strap to a properly grounded metal surface.

► Installation order:

1. Install the FASTier Read Cache SSDs from the LEFT, starting with the FIRST slot.

2. Install the disk drives in any order in the remaining slots.

► To install the drives:

1. Slide the release button on the front of the drive carrier and open the handle.

2. Insert the hard-drive carrier into the drive bay until the carrier contacts the backplane.

3. Close the hard-drive carrier handle to lock the drive in place.

4. Repeat these steps for each drive.

Note To maintain proper airflow and cooling, a disk drive or a blank drive carrier must be installed in every slot

of the enclosure.

► What's Next:

"Connecting and powering on" (page 61)

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Chapter 2: Installing Unity Storage Systems

Installing the disk drives in the US424

This section explains how to install the SAS disk drives in the US424.

CAUTION: Put on the ESD wrist strap before starting:

1. Slip the wrist loop over your hand (left or right), then tighten the loop against your wrist.

2. Attach the clip end of the anti-static wrist strap to a properly grounded metal surface.

► Installation order:

1. Install the FASTier Write Cache SSD into slot 1.

2. Install the FASTier Read Cache SSD into slot 2.

3. Install the disk drives in any order in the remaining slots.

The half-populated drive configuration includes empty drive carriers for expansion.

► To install the drives on the Unity Storage Expansion:

To install the drives:

1. Slide the release button on the front of the drive carrier and open the handle.

2. Insert the hard-drive carrier into the drive bay until the carrier contacts the backplane.

3. Repeat these steps for all remaining disk drives.

Note To maintain proper airflow and cooling, a disk drive or a blank drive carrier must be installed in every slot

of the enclosure.

► What's Next:

"Connecting and powering on" (page 61)

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Installing the disk drives in the US460

This section explains how to install the SAS disk drives in the US460.

CAUTION: Put on the ESD wrist strap before starting:

1. Slip the wrist loop over your hand (left or right), then tighten the loop against your wrist.

2. Attach the clip end of the anti-static wrist strap to a properly grounded metal surface.

► Installation order:

1. If you are installing one 20-drive pack, install the SSD in slot 30.

2. If you are installing two 20-drive packs, install the SSDs in slots 29 and 30.

3. If you are installing three 20-drive packs, install the SSDs in slots 28 to 30.

4. Install the disk drives in any order in the remaining slots.

► To install the drives:

1. From the front of the expansion, turn the thumbscrews counterclockwise.

2. From the front of the expansion , turn the thumbscrews counterclockwise and slide the drive bay cover towards the front, and up.

3. Open the first drive carrier by sliding the arrow tab in the direction of the arrow.

4. Insert the hard-drive carrier into the drive bay until the drive is fully seated. There should be an audible click.

5. Repeat these steps for each drive.

6. Close the hard-drive carrier handle to lock the drive in place.

7. Repeat these steps for all remaining disk drives.

► What's Next:

"Connecting and powering on" (page 61)

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Chapter 3:Connecting and powering on

This chapter explains how to connect and power on Unity Storage Systems.

The chapter includes these topics:

Basic configurations 62

Connecting a UNITY2200X to a UNITY2200 62

Connecting a US224 to a Unity4400 or Unity6900 63

Connecting a US316 to a Unity4400 or Unity6900 64

Connecting a US424 to a Unity4400 or Unity6900 65

Connecting a US460 to a Unity4400 or Unity6900 66

Cascade configurations 68

Connecting the power cords 74

Powering on 75

Chapter 3

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Basic configurations

This section shows the basic configurations for Unity Storage Expansions.

Connecting a UNITY2200X to a UNITY2200

The UNITY2200 can be connected to one UNITY2200X Storage Expansion. This configuration does not support daisy chaining and controller redundancy.

► To connect a UNITY2200X Storage Expansion:

Slot A

1. On the Unity Storage System slot A controller, connect the first SAS cable into the on-board HBA SAS OUT port (1), as shown.

2. Connect the other end of the same SAS cable into the left SAS IN port (2) on the Unity Storage Expansion.

Slot B

3. On the Unity Storage System slot B controller, connect the second SAS cable into the right on-board SAS OUT port (3).

4. Connect the other end of the same SAS cable into the second-from-left SAS IN port (4) on the Unity Storage Expansion.

Note Be sure to snap the cables securely into place.

Figure 3-1: UNITY2200 connected to the UNITY2200X

► What's Next:

Proceed to Connecting the power cords on page74.

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Chapter 3: Connecting and powering on

Connecting a US224 to a Unity4400 or Unity6900

The UNITY4400 or UNITY6900 can be connected to US224 Storage Expansion.

► To connect a US224 Storage Expansion:

On each Unity Storage System controller, cross-connect SAS cables from the Add-on HBA SAS OUT ports to the HBASAS IN ports on the Unity Storage Expansion controllers, as shown.

Slot A

1. On the Unity Storage System, connect a SAS cable into the HBA SAS OUT port (1).

2. Connect the other end of the SAS cable into the SAS IN port (2) on the Unity Storage Expansion.

3. On the Unity Storage System, connect the second SAS cable into the SAS OUT port (3).

4. Cross-connect the other end of the SAS cable into the SAS IN port (4) on the Unity Storage Expansion.

Slot B

5. On the Unity Storage System, connect the third SAS cable into the HBA SAS OUT port (5).

6. Cross-connect the other end of the SAS cable into the SAS IN port (6) on the Unity Storage Expansion.

7. On the Unity Storage System, connect the fourth SAS cable into the SAS OUT port (7).

8. Connect the other end of the cable into the SAS IN port (8) on the Unity Storage Expansion.

Additional storage connections should be parallel connected. See Cascade configurations on page68

Note Be sure to snap all cables securely into place.

Figure 3-2: UNITY4400 connected to the US224

► What's Next:

"Cascade configurations" (page 68)

Connecting the power cords on page74.

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Connecting a US316 to a Unity4400 or Unity6900

The UNITY4400 or UNITY6900 can be connected to up to three US316.

► To connect a US316 Storage Expansion:

On each Unity Storage System controller, cross-connect SAS cables from the Add-on HBA SAS OUT ports to the HBASAS IN ports on the Unity Storage Expansion controllers, as shown.

Slot A

1. On the Unity Storage System, connect a SAS cable into the HBA SAS OUT port (1).

2. Connect the other end of the SAS cable into the SAS IN port (2) on the Unity Storage Expansion.

3. On the Unity Storage System, connect the second SAS cable into the SAS OUT port (3).

4. Cross-connect the other end of the SAS cable into the SAS IN port (4) on the Unity Storage Expansion.

Slot B

5. On the Unity Storage System, connect the third SAS cable into the HBA SAS OUT port (5).

6. Cross-connect the other end of the SAS cable into the SAS IN port (6) on the Unity Storage Expansion.

7. On the Unity Storage System, connect the fourth SAS cable into the SAS OUT port (7).

8. Connect the other end of the cable into the SAS IN port (8) on the Unity Storage Expansion.

Additional storage connections should be parallel connected. See Cascade configurations on page68

Note Be sure to snap all cables securely into place.

Figure 3-3: UNITY4400 connected to the US316

► What's Next:

"Cascade configurations" (page 68)

Connecting the power cords on page74.

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Chapter 3: Connecting and powering on

Connecting a US424 to a Unity4400 or Unity6900

The UNITY4400 or UNITY6900 can be connected to the US424 Storage Expansion.

► To connect a US424 Storage Expansion:

On each Unity Storage System controller, cross-connect SAS cables from the Add-on HBA SAS OUT ports to the HBASAS IN ports on the Unity Storage Expansion controllers, as shown.

Slot A

1. On the Unity Storage System, connect a SAS cable into the HBA SAS OUT port (1).

2. Connect the other end of the SAS cable into the SAS IN port (2) on the Unity Storage Expansion.

3. On the Unity Storage System, connect the second SAS cable into the SAS OUT port (3).

4. Cross-connect the other end of the SAS cable into the SAS IN port (4) on the Unity Storage Expansion.

Slot B

5. On the Unity Storage System, connect the third SAS cable into the HBA SAS OUT port (5).

6. Cross-connect the other end of the SAS cable into the SAS IN port (6) on the Unity Storage Expansion.

7. On the Unity Storage System, connect the fourth SAS cable into the SAS OUT port (7).

8. Connect the other end of the cable into the SAS IN port (8) on the Unity Storage Expansion.

Additional storage connections should be parallel connected. See Cascade configurations on page68

Note Be sure to snap all cables securely into place.

Figure 3-4: UNITY4400 connected to the US424

► What's Next:

Cascade configurations on page68

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Connecting a US460 to a Unity4400 or Unity6900

Connecting the power cords on page74

Connecting a US460 to a Unity4400 or Unity6900

The UNITY4400 can be connected up to four Unity Storage Expansions and the UNITY6900 can be connected to up to eight Unity Storage Expansions. See also:Cascade configurations on page68

► To connect a US460 Storage Expansion:

On each Unity Storage System controller, cross-connect SAS cables from the Add-on HBA SAS OUT ports to the HBASAS IN ports on the Unity Storage Expansion controllers, as shown.

Slot A

1. On the Unity Storage System, connect a SAS cable into the HBA SAS OUT port (1).

2. Connect the other end of the SAS cable into the SAS IN port (2) on the Unity Storage Expansion.

3. On the Unity Storage System, connect the second SAS cable into the SAS OUT port (3).

4. Cross-connect the other end of the SAS cable into the SAS IN port (4) on the Unity Storage Expansion.

Slot B

5. On the Unity Storage System, connect the third SAS cable into the HBA SAS OUT port (5).

6. Cross-connect the other end of the SAS cable into the SAS IN port (6) on the Unity Storage Expansion.

7. On the Unity Storage System, connect the fourth SAS cable into the SAS OUT port (7).

8. Connect the other end of the cable into the SAS IN port (8) on the Unity Storage Expansion.

Additional storage connections should be parallel connected. See Cascade configurations on page68

Note Be sure to snap all cables securely into place.

Figure 3-5: UNITY6900 connected to the US460

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► What's Next:

Cascade configurations on the next page

Connecting the power cords on page74

Chapter 3: Connecting and powering on

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Cascade configurations

You can connect multiple Unity Storage Expansions in almost any combination to the UNITY4400 and UNITY6900 Storage Systems.

To take advantage of redundancy, the first two Unity Storage Expansions must be cross-connected to the SAS add-on ports on the Unity Storage System, and the rest can be connected in parallel.

Unity4400

With UNITY4400 Storage Systems, you can connect up to three Unity storage expansions. See Cascading

the Unity4400 Storage System on the facing page

Unity6900

With the Unity6900, you can connect up to eight storage expansions. See Cascading the Unity6900 Storage

System on page71

Note For more details about connecting Nexsan Unity Storage Expansions, please consult your Quick Start

Guide.

Here the Unity Storage Expansions available for cascade configurations:

US224

US316

US424

US460

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Cascading the Unity4400 Storage System

You can cascade (daisy chain) up to three Unity Storage Expansions in any combination with the UNITY4400.

Important:Cross-connect from opposite controllers on the Unity Storage System, as shown in this section, so that in the event of the failure of one unit, the other nodes in the array can remain in service.

► To connect the Unity Storage Expansions:

1. Cross-connect the first Unity Storage Expansion from the add-on HBA SAS ports on the UNITY4400 to the on-board SASports on the first Unity Storage Expansion. See Connecting a US224 to a Unity4400 or

Unity6900 on page63

2. Parallel-connect the rest of the Unity Storage Expansions using the on-board SASports.

Figure 3-6: Unity4400 cascade example with the US224

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Cascade configurations

Figure 3-7: Unity4400 cascade example with the US316

► What's Next:

Connecting the power cords on page74

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Chapter 3: Connecting and powering on

Cascading the Unity6900 Storage System

You can cascade (daisy chain) up to eight Unity Storage Expansion to the UNITY6900. Connect the first two storage expansions directly to the four SAS add-on ports on the Unity6900, and then daisy-chain from those expansions, as shown in Unity6900 cascade example with four US460s (maximum 7) on page73.

Important:Cross-connect from opposite controllers on the Unity Storage System, so that in the event of the failure of one unit, the other nodes in the array can remain in service. If you are mixing different Unity Storage Expansions, and include one or more US460s, place them at the end of the series.

► To connect the Unity Storage Expansions:

1. Cross-connect the first Unity Storage Expansion from the add-on HBA SAS ports on the UNITY6900 to the on-board SASports on the first Unity Storage Expansion. See Connecting a US460 to a Unity4400 or

Unity6900 on page66

2. Parallel-connect the rest of the Unity Storage Expansions using the on-board SASports.

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Figure 3-8: Unity6900 cascade example with US424

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Figure 3-9: Unity6900 cascade example with four US460s (maximum 7)

► What's Next:

Connecting the power cords on the next page

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Connecting the power cords

This section describes typical power connections.

CAUTION: Use only the power cords supplied with the Unity Storage Expansion. Do not use another type of cord or extension cords. If you require additional power cords, please contact your Nexsan sales representative or reseller.

► To connect the power cords:

1. Plug the power cords into their respective power supplies on the rear of the storage expansions.

2. Using the included power cords, connect each power supply unit to an AC power source.

Figure 3-10: Example showing a US424

Note We strongly recommend that you use an uninterruptible power supply (UPS) to protect your

enclosure.

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Powering on

Unity Storage Expansions must be powered on first and allowed to complete drive spin-up and discovery prior to powering on the Unity Storage System for the first time. Discovery is complete once the drive LEDs stop flashing.

The Unity Storage System is hot pluggable: Once in service, powering down is not normally required to add a Unity Storage Expansion.

Powering on all other Unity enclosures

► To power on Unity Storage Systems (US460):

1. Connect to AC power. See Connecting the power cords on the previous page

Press and hold the power button located on the right front panel of the chassis until the power LED

lights up.

► Attach the front bezel to the storage expansion:

1. Hook the left end of the bezel onto the chassis.

2. Fit the right side of the bezel onto the chassis.

3. Turn the key lock at the right end of the bezel to the lock position to secure the bezel to the chassis.

► Check Storage Expansion and drive status:

1. Check the status LEDs on the front of the unit:

For the UNITY2200X, US224, US316, or US424:

Check the power LEDs on the LEFT and RIGHT front control panels to ensure that both controllers are receiving power and that the power modules are functioning properly.

Verify that the heartbeat is blinking yellow in 2-3 second intervals.

2. Verify that the drive carrier LEDs are illuminated in green.

3. Wait approximately one minute for all drives to become ready. All drive carrier activity LEDs should be illuminated in green.

If a drive carrier activity LED does not light up, check to make sure the corresponding drive is properly seated in the chassis.

Powering on the US460

► To power on the US460:

1. Connect the US460 to a UNITY4400 or UNITY6900 storage system.

2. Connect the power cord to each AC Input on the back of the expansion enclosure.

3. Plug the power cord into ACpower.

4. Check that the Power (left) and Ready (middle) LEDs are illuminated and solid GREEN.

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Powering on

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Chapter 4:Monitoring

This chapter describes the status and activity LEDs that help you monitor the Nexsan Unity 2.0 Storage Systems and Unity Storage Expansions.

The chapter includes these topics:

Monitoring power supply units 78

Monitoring enclosures 81

Monitoring disk drives 85

Chapter 4

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Monitoring power supply units

This section documents PSUstatus LEDs for the following Unity Storage Expansions:

UNITY2200X

US224

US316

US424

When a failure occurs on a power supply unit, the enclosure LEDs indicate an enclosure fault. Always check the PSU status whenever the enclosure LEDs indicate a fault.

Both controllers for the units in this section have a PSULED.

For information about the US460 power status LEDs, please see "Monitoring power supply units" (page 78)

For additional information about enclosure LEDs, see Monitoring enclosures on page81.

Note With the exception of the US460, the power button is located on the front right side of the enclosure.

The US460 have no power buttons; they power up when they connect to power.

Figure 4-1: UNITY2200X and US316

Figure 4-2: US224

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Table 4-1: Power supply LEDs

Name Description LED status

Chapter 4: Monitoring

Figure 4-3: US424

Power IndicatesPSUstatus Green: The unit is powered on and working normally

Green (flashing): Indicates a fault status

Off: The unit is powered off.

Color LED name Description

Green Power

This section documents US460 power supply LEDs.

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Table 4-2: US460 rear panel power supply LEDs

Name Description LED status

ALM Alarm LED: Indicates if there are faults on the PSU (power

supply unit) for each controller.

ACIN AC Input LED: Indicates whether the controller has AC input

power.

RDY Ready LED: Indicates whether the PSU is providing power

to the enclosure.

Red: PSU contains one or more faults

Red (flashing): PSU alarm status is being identified.

Off: PSU is functioning normally.

Green: AC input is functioning

normally.

Off: No AC input

Green: DC input is functioning

normally.

Off: No DC output

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Monitoring enclosures

CAUTION: If the power fail LEDcomes on, or if the fan fail LED starts flashing on either controller, replace the component as described in Replacing a controller on page91.

All Unity Storage Systems feature redundant PSUs, accessed from the rear of the unit. Each PSU has one or more status LEDs.

Note With the exception of the US460, the power button is located on the front right side of the enclosure.

The US460 has no power button. The unit powers up when it is plugged in.

For information about the US460 enclosure LEDs, please see "Monitoring enclosures" (page 81).

The control panel located on the right side of Unity chassis has several LEDs. These LEDs provide you with critical information related to the node on the same side of the chassis.

This table describes what each LED indicates when illuminated and any corrective action you may need to take.

Table 4-3: Control panel LEDs

LED Description

Power

Indicates power is being supplied to the system's power supply units. This LED is illuminated when the system is operating.

Heartbeat

Indicates that power is being supplied to the server board. This LEDflashes amber to indicate normal activity.

NIC1

Indicates network activity on the LAN1 port when ﬂashing.

NIC2

Indicates network activity on the LAN2 port when ﬂashing.

Power failure

Indicates a power supply module as failed. The second power supply module will take the load and keep the system running but the failed module will need to be replaced. This LED is OFF when the system is operating normally.

Overheat/fan failure

When this LED ﬂashes, it indicates a fan failure.

When it is ON continuously, it indicates an overheat condition, which may be caused by cables obstructing the airﬂow in the system or the ambient room temperature being too warm.

This LED will remain flashing or on as long as the indicated condition exists.

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Monitoring enclosures

LED Description

► Perform these steps:

1. Check the routing of the cables and make sure all fans are present and operating normally.

2. Check to make sure that the chassis covers are installed.

3. Verify that the heat sinks are installed properly.

Drive carrier LEDs

Each drive carrier on Unity's chassis has two LEDs, a green LED on the left to indicate activity, and a red LED on the right to indicate status.

Table 4-4: Drive carrier LEDs

LED Description

Green When illuminated, the green LED on the drive carrier indicates the drive is powered on.

If this LED is not lit, it means no power is being provided for the drive.

Red A steady red LED indicates a drive failure.

A blinking red LED indicates that a RAID rebuild is in progress.

US460 Front panel LEDs

There are several LEDs on the control panel of the US460, and on the drive carriers, to keep you constantly informed of the overall status of the system and the activity and health of specific components.

Control panel LEDs

The control panel provide critical information related to the corresponding node.

This table describes what each LED indicates when illuminated and any corrective action you may need to take.

Name Description LED status

ALM Alarm LED: Indicates if there are faults on the PSU for

each controller.

Red: PSU contains one or more faults

Red (flashing): PSU alarm status is being identified.

Off: PSU is functioning normally.

ACIN AC Input LED: Indicates whether the controller has input

power.

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Green: AC input is functioning normally.

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Name Description LED status

Off: No AC input

Chapter 4: Monitoring

RDY Ready LED: Indicates whether the PSU is providing

power to the enclosure.

Green: DC input is functioning normally.

Off: No DC output

Rear LEDs

This table describes the US460 enclosure status backplane LEDs.

Name Description LED status

Status LEDs

Power Indicates whether the enclosure has power Green: Powered on

Off: Powered off

Identify Identifies the location of the enclosure, and enables users to turn on

the LED from the Unity firmware

Amber (flashing):

Enclosure is being identified

Off: Enclosure is not being identified

Fault Indicates whether the enclosure has faults Red: Enclosure has

fault conditions

Off: No fault conditions

Host Storage System LEDs (Link/Fault)

Host 1

Host 2

Host 3

Host 4

The Host Storage System LEDs, positioned to the right of the host ports, indicate links and faults on the host Unity Storage System. In the image above, only one storage system is connected.

Link: (Green)

On: SAS cable

connected

Off: SAS cable not connected

Fault: (Red)

Flashing: One or

more of the SAS connections is not connected

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Monitoring enclosures

Name Description LED status

Off: SAS connection

contains no faults

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Chapter 4: Monitoring

Monitoring disk drives

Each Unity Storage Expansion disk drive carrier has LEDs that indicate the status of the disk drive. If a drive fails, replace the drive as described in Removing a disk drive on page92.

Note If replacing a disk drive does not resolve a fault or failure indicated by LED 2, replace the I/O controller;

for more information, see Replacing a controller on page91

All Unity Storage Expansion drive carriers have two status LEDs, as shown in these images.

Figure 4-4: US224

Figure 4-5: US316 and UNITY2200X

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Monitoring disk drives

LED Indication

Figure 4-6: US424

Table 4-5: Drive carrier LEDs

Green A steady green LED indicates the drive is powered on.

If this LED is not lit, the drive is not getting power.

If this LED is flashing, the drive is being accessed (read or write).

Red A steady red LED indicates a drive failure.

Figure 4-7: US460

Table 4-6: US460 drive carrier LEDs

LED Indication

Ready (Green) A steady green LED indicates the drive is ready.

If this LED is not lit, the drive is not getting power.

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LED Indication

If this LED is flashing, the drive is being accessed (read or write).

Status (Red) A steady red LED indicates a drive failure.

If this LED is not lit, the drive has no faults.

Chapter 4: Monitoring

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Monitoring disk drives

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Chapter 5:Solving problems

This chapter describes how to remove and replace failed or failing components of the Unity Storage Expansions. It includes these topics:

General troubleshooting tips 90

Powering down 91

Replacing a controller 91

Removing a disk drive 92

Replacing a PSU 93

Removing a Unity Storage Expansion 94

Chapter 5

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General troubleshooting tips

Use these tips if you encounter difficulties installing or using your Unity Storage System or Unity Storage Expansion,

Check all components on the enclosure—disk drives, power supply units, I/O controllers—for illuminated Fault LEDs. See Monitoring enclosures on page81 for more information.

Ensure that all components are fully and properly seated in their slots.

Ensure that all cables are properly connected. If necessary, try using different SAS cables.

Ensure that both APC units are powered on.

If you need to power down your equipment

The Unity Storage System is hot pluggable and powering down is not required to add a Unity Storage Expansion. If however, you determine that powering down is necessary, perform the shutdown in this order:

1. Power down the Unity Storage Expansion.

2. Power on the Unity Storage Expansion.

3. Power on Unity.

For procedural steps, see Powering down on the facing page and Powering on on page75.

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Chapter 5: Solving problems

Powering down

This section describes the power down sequence for Unity Storage Expansions and Unity Storage Systems.

Note The Unity Storage System should be shut down before the Unity Storage Expansions during a power

down sequence. You can do this from Nexsan Unity or from the nxadmin Command-line Interface (CLI) on Unity; for more information, see the Nexsan Unity Software User Guide.

► To power down the Unity Storage Expansions and Unity Storage System:

1. Power down the Unity Storage System from Nexsan Unity or from the nxadmin Command-line Interface (CLI).

Note Both Unity controllers must be powered off simultaneously.

2. Power down the Unity Storage Expansion by pressing and holding the power button on the power supply units or by unplugging the unit (US460).

Replacing a controller

CAUTION: Although the controllers are hot-swappable, the safest way to replace a controller without any risk of damage or data loss is with the Unity Storage Expansion powered off.

Note I/O traffic to an I/O controller should be stopped before hot swapping a controller.

► To remove the controller:

1. If you are not doing a hot-swap, power off your equipment in this order:

a. Power off Unity.

b. Power off the Unity Storage Expansion.

c. For more information about the power off sequence, see "Powering down," above.

2. Before you disconnect the cables, label each cable with the name of the port it connects to. You will need this information when installing a new controller.

3. Disconnect all the cables connected to the controller.

4. Pull the two black release handles and carefully slide the controller out of the enclosure.

5. Gently slide a new controller into the empty controller bay until the black handles engage, then press the handles until the I/O canister latches into place.

6. Connect the cables according to the notes you made when you removed the old controller.

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Removing a disk drive

7. If necessary, power on your equipment in this order:

a. Power on the Unity Storage Expansion.

b. Power on Unity.

Removing a disk drive

If you will be installing a replacement disk drive, allow it to acclimate to room temperature before continuing.

Note For disk drive installation instructions, see Installing Unity Storage Systems on page33.

Important safety precautions

To avoid data loss, stop all I/O activity on the disk drive before removing it. Removing a disk drive during I/O activity could also hang the host system.

Do not attempt to remove more than one disk drive or blank drive carrier at a time. Damage to the drive carrier can occur if adjacent disk drives are removed at the same time.

To maintain proper airflow and cooling inside the enclosure, install either a disk drive or a blank drive carrier into the empty drive bay as quickly as possible.

► To remove a disk drive (or blank drive carrier):

1. Press the button on the disk drive carrier to release the lever (drive may not be exactly as shown).

2. Gently pull open the lever.

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3. If the enclosure is powered on, in the case of HDDs, allow the disk drive to fully spin down (wait approximately 30 seconds).

CAUTION: Removing a disk drive before it has fully spun down may result in disk drive damage and possible personal injury.

4. Gently pull the disk drive out of the enclosure.

Note Do not remove the disk drive from its drive carrier. A disk drive removed from its carrier is not

covered by the hardware warranty.

5. Immediately replace the disk drive or install a blank drive carrier to maintain correct airflow and cooling; for more information, see Installing Unity Storage Systems on page33.

Replacing a PSU

You must replace a failed PSU as quickly as possible (within five minutes) to maintain correct airflow and cooling. failed PSUs can be hot-swapped.

If you don’t have a replacement unit available for immediate installation, you must power off the enclosure.

Note If the enclosure is still operational, the failed PSU can be left installed to maintain proper cooling until a

replacement unit is available. The fans in both PSUs will continue to run at high speed until the PSU is replaced.

For more information about PSUs, see Components and features on page14.

► To replace a PSU:

1. Power off the failed PSU and remove the power cable. If the enclosure is powered on, the fans in the other PSU switch to high speed to compensate for the reduced airflow.

2. Push the release tab to the right and rotate the handle down.

3. Slide the PSU out of the enclosure. Do not use the thumb-presses as handles to lift or carry the PSU (example picture shown).

CAUTION: To avoid electrical shock, do not insert any instruments or tools into the open PSU slot.

4. Gently slide a new PSU into the empty slot until the handle rotates up and the release tab clicks into place.

5. Reconnect the power cable.

6. Power on the PSU.

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Removing a Unity Storage Expansion

When proper airflow returns, the cooling fans in the other PSU return to their normal speed.

Removing a Unity Storage Expansion

This section describes how to disconnect a Unity Storage Expansion from an Unity or another Nexsan Unity Storage Expansion. Nexsan Unity Storage Expansions are hot-pluggable. They can be added or removed from an Unity or another Nexsan expansion unit that is currently running.

► Before you begin:

Before you can physically remove a Unity Storage Expansion, you must:

1. Remove all storage pools on the Unity Storage Expansion, as described in Deleting a storage pool below.

2. Remove the Unity Storage Expansion from Unity, as described in Removing a Unity Storage System on page96.

► To remove a Unity Storage Expansion:

1. Put on the disposable ESD strap:

a. Slip the wrist loop over your hand (left or right), then tighten the loop against your wrist.

b. Attach the clip end of the anti-static wrist strap to a properly grounded metal surface, such as a

server rack’s grounding pin.

2. Power OFF the expansion unit.

3. Unplug the power cords from their respective power supplies on the rear of the expansion unit, then unplug them from the power source.

4. Unplug the SAS cables connected to the expansion unit from the main unit.

5. (Optionally) Replace the expansion unit with another one by connecting the SAS cable from the SAS onboard port to the appropriate SAS port on the new expansion unit.

Deleting a storage pool

This section explains how to delete a storage pool on Unity.

CAUTION: Deleting a storage pool also deletes all shares and their underlying data in the storage pool, including snapshots of the data. If the storage pool is replicated, Unity will ask you if you want to also delete the storage pool’s replica on the remote site, or if you want to promote the storage pool’s replica to primary pool.

► To delete a storage pool:

1. On the Unity navigation bar, select Storage >Storage Pools.

2. In the Storage Pool panel, click the link to the pool you want to delete.

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Chapter 5: Solving problems

3. Click the Delete Pool button. The Delete Storage Pool confirmation popup opens.

Figure 5-1: Delete Pool popup

4. Type Delete in the text box.

5. Click Delete to delete the storage pool.

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Removing a Unity Storage Expansion

Removing a Unity Storage System

Use this procedure to remove a Unity Storage System.

CAUTION: This action will permanently remove the storage system from the Unity System; if you proceed, the storage system will no longer be allocated to the Unity System.

As part of the removal process, you can specify whether or not you want Unity to delete all existing volumes (RAID sets) on the storage system, or leave them intact.

Note that Unity supports two options for the RAIDsets on the system being removed:

Delete volumes:With this option, you remove existing RAIDconfigurations.

Leave volumes intact. With this option, you keep the RAIDconfigurations on the removed

system.

Prerequisites

Remove storage pools allocated to the system, as described in Deleting a storage pool on page94.

► To remove a Unity Storage System:

1. From the Unity navigation bar, select Storage > Storage Systems. The Storage Systems panel opens.

Figure 5-2: Storage Systems panel

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In the row containing the system you that want to remove, click the Remove System icon . The Remove Storage System window opens.

Figure 5-3: Remove Storage System window

3. Choose one of the following:

Delete volumes:With this option, you remove existing RAIDconfigurations.

Leave volumes intact. With this option, you keep the RAIDconfigurations on the removed system.

4. Type Remove in the text box.

5. Click the Remove button to complete the operation.

► What's Next:

You can now remove the storage enclosure physically.

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Removing a Unity Storage Expansion

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Appendix A:Technical specifications

This chapter lists the technical specifications of the Nexsan Unity Storage Expansions. It includes these topics:

Unity2200 Expansion general specifications 100

US224 general specifications 101

US316 general specifications 103

General specifications for 4U Unity Storage Expansions 104

Appendix A

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Unity2200 Expansion general specifications

This section describes the UNITY2200X hardware specifications.

Hardware component Specifications

System Up to 16 drives with 3.5'' SAS disk drives

Rail kit mounting 3U enclosure height

The rack must have square holes

Maximum distances: 30" (800 mm)

Cable specifications:

Passive SAS cables

19.6'' (500 mm) minimum

36" (914 mm) maximum

Active cables

Any length

Redundant components 2 power supply units

Cooling fans

Host connectivity ports

Controllers

Enclosure physical dimensions

Weight Chassis:56 lbs (25.5 kg)

Advanced power and cooling units

Height 5.2'' 132 mm

Width 17.2'' 437 mm

Length 25.5'' 648 mm

With drives installed: 75 lbs (34 kg)

Rated output power : 1,200W redundant

Rated output voltages:+12V (83Amax.) +5Vsb (4A max.)

Input voltage: 100-240VAC

AC input frequency: 50/60 Hz

Power consumption: varies depending on the number and size of drives, running fans, and room temperature

Cooling system: 12 fans (4 cm)

6 counter-rotating fans behind the HDDbackplane

6 counter-rotating fans at the rear of each node

Power supply: 2 fans (one per power supply)

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Nexsan Unity, Unity2200, Unity6900, Unity4400 Reference Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Chapter 1:Unity Storage Expansion overview

Storage capacities by Unity Storage System

Connection and configuration options

Components and features

Front and top views

Rear views

Unity Storage Expansions

About the SAS I/O controllers

Making SAS connections

About the power supply units (PSUs)

About the disk drives and drive carriers

Disk drive specifications

Unity2200 and UNITY2200X

US316

UNITY4400, UNITY6900, and US224

US424

US460

Cable specifications

Chapter 2:Installing Unity Storage Systems

Preparing for the installation

Package contents

UNITY2200 Storage System

UNITY4400 Storage System

UNITY6900 Storage System

UNITY2200X Storage Expansion

US224

US316

US424

US460

Components not included in your package

Installing a Unity2200, Unity2200X, or US316 in a rack

Installing a Unity4400, Unity6900, or US224 in a rack

Installing a US424 in a rack

Installing a US460 in a rack

Install CMA arms onto the rack

Installing the disk drives in the Unity2200, Unity2200X, and US316

Installing the disk drives in the US224, Unity4400, and Unity6900

Installing the disk drives in the US424

Installing the disk drives in the US460

Chapter 3:Connecting and powering on

Basic configurations

Connecting a UNITY2200X to a UNITY2200

Connecting a US224 to a Unity4400 or Unity6900

Connecting a US316 to a Unity4400 or Unity6900

Connecting a US424 to a Unity4400 or Unity6900

Connecting a US460 to a Unity4400 or Unity6900

Cascade configurations

Unity4400

Unity6900

Cascading the Unity4400 Storage System

Cascading the Unity6900 Storage System

Connecting the power cords

Powering on

Powering on all other Unity enclosures

Powering on the US460

Chapter 4:Monitoring

Monitoring power supply units

Monitoring enclosures

Drive carrier LEDs

US460 Front panel LEDs

Control panel LEDs

Rear LEDs

Monitoring disk drives

Chapter 5:Solving problems

General troubleshooting tips

If you need to power down your equipment

Powering down

Replacing a controller

Removing a disk drive

Replacing a PSU

Removing a Unity Storage Expansion

Deleting a storage pool

Removing a Unity Storage System

Prerequisites

Appendix A:Technical specifications