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Nexsan Unity 2200 Reference Manual

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HYPER-UNIFIED STORAGE
Nexsan Unity
Storage Expansion Reference Guide
Firmware Version: Unity 2.0
Nexsan
900 E. Campbell, CA 95008 | p. 866.263.9726 | www.nexsan.com

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  • Page 1 HYPER-UNIFIED STORAGE Nexsan Unity Storage Expansion Reference Guide Firmware Version: Unity 2.0 Nexsan 900 E. Campbell, CA 95008 | p. 866.263.9726 | www.nexsan.com...
  • Page 2 Nexsan, 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.

  • Page 3: Table Of Contents

    Contents Contents Contents Chapter 1: Overview Storage capacities by Unity Storage System Connection and configuration options Components and features Front and top views Rear views Unity Storage Systems 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 Unity 2200 and Unity 2200 Expansion...

  • Page 4: Contents

    Removing a storage enclosure Appendix A: Technical specifications Unity 2200 Expansion general specifications US 224 Expansion general specifications US 316 Expansion general specifications US 424 Expansion and US 460 Expansion general specifications Nexsan Unity Storage Expansion Reference Guide Unity iv...
  • Page 5 Contents Appendix B: Regulatory compliance Regulatory compliance statements Regulatory agency compliance Nexsan www.nexsan.com...

  • Page 7: About This Manual

    Because this Reference Guide provides information that can be used to manage one or more Nexsan Unity Storage Expansions, the generic term “storage space” is used to refer to the controller, disk drives and expansions being used together for data storage.
  • Page 8 E-mail: support@nexsan.com Nexsan Shipping Nexsan UK 302 Enterprise Street , Suite A Units 33–35, Parker Centre, Mansfield Road Escondido, CA 92029 USA Derby, DE21 4SZ United Kingdom Support (Europe): +44 (0)1332 291600 Nexsan Unity Storage Expansion Reference Guide Unity viii...

  • Page 9: Related Documentation

    When installing the system as a rack-mounted component, ensure that all Nexsan-supplied mounting fixtures are secure. All bolts and screws should be fully tightened. Failure to comply with this may result in the unit not being fully supported in the rack and could lead to the product falling from the rack causing personal injury or falling onto other rack components.
  • Page 10 CAUTION: All Nexsan Unity Storage Systems and Nexsan Unity Storage Expansions are hot- pluggable. However, the system that you are adding must be powered on AFTER you connect it to the existing system. Nexsan Unity Storage Expansion Reference Guide Unity x...

  • Page 11: Chapter 1: Overview

    Chapter 1 Chapter 1: Overview This document describes and explains how to install and monitor the Nexsan Unity Storage Systems: Nexsan Unity 2200 Storage System™ Nexsan Unity 2200 Expansion™ Nexsan Unity 4400 Storage System™ Nexsan Unity 6900 Storage System™ Nexsan Unity Storage 224 Expansion™...

  • Page 12: Storage Capacities By Unity Storage System

    Daisy chain support: One storage system with up to three storage expansions. Unity 6900 1.6 PB 4.6 PB High-end system Cascade and daisy chain support: One storage system with up to eight storage expansions. Nexsan Unity Storage Expansion Reference Guide Unity 12...

  • Page 13: Connection And Configuration Options

    Chapter 1: Overview Connection and configuration options This table lists the Unity Storage Systems and their supported Unity Storage Expansions. Nexsan Unity Storage US 224 US 316 US 424 US 460 Unity 2200 Systems Expansion Expansion Expansion Expansion Expansion Unity 2200...

  • Page 14: Components And Features

    Components and features Components and features This section shows the main components and capacities available in version 2.0 Unity Storage Systems. This section includes these topics: Nexsan Unity Storage Expansion Reference Guide Unity 14...

  • Page 15: Front And Top Views

    This section shows the Unity Storage Expansion front and top views ( US 460 Expansion), with front bezels removed. Figure 1-1: Unity 2200 and Unity 2200 Expansion Figure 1-2: Unity 4400, Unity 6900, and US 224 Expansion Figure 1-3: US 316 Expansion Nexsan www.nexsan.com...
  • Page 16 Components and features Figure 1-4: US 424 Expansion Figure 1-5: US 460 Expansion top view Nexsan Unity Storage Expansion Reference Guide Unity 16...

  • Page 17: Rear Views

    NICs: 10GbE dual-port HBA with RJ-45 interfaces 10GbE dual-port HBA with SFP+ optical interfaces 8Gb FC dual-port HBA 16Gb FC dual-port HBA 1GbE quad-port HBA with RJ-45 interfaces 1GbE dual-port HBA with RJ-45 interfaces Nexsan www.nexsan.com...
  • Page 18 10GbE dual-port HBA with RJ-45 interfaces 10GbE dual-port HBA with SFP+ optical interfaces 8Gb FC dual-port HBA 16Gb FC dual-port HBA 1GbE quad-port HBA with RJ-45 interfaces 1GbE dual-port HBA with RJ-45 interfaces Nexsan Unity Storage Expansion Reference Guide Unity 18...
  • Page 19 NICs: 10GbE dual-port HBA with RJ-45 interfaces 10GbE dual-port HBA with SFP+ optical interfaces 8GbE FC dual-port HBA 16GbE FC dual-port HBA 1GbE quad-port HBA with RJ-45 interfaces 1GbE dual-port HBA with RJ-45 interfaces Nexsan www.nexsan.com...

  • Page 20: Unity Storage Expansions

    SAS link status LEDs (2 Green: All four physical layers (PHY) of each port connected with IN, 2 OUT) consistent link speed (12 G or 6G) Red: Single PHY degraded link speed or disconnected Nexsan Unity Storage Expansion Reference Guide Unity 20...
  • Page 21 SAS OUT ports to another storage unit SAS link status LEDs (2 Green: All four physical layers (PHY) of each port connected with IN, 2 OUT) consistent link speed (12 G or 6G) Red: Single PHY degraded link speed or disconnected Nexsan www.nexsan.com...
  • Page 22 SAS link status LEDs (2 Green: All four physical layers (PHY) of each port connected with IN, 2 OUT) consistent link speed (12 G or 6G) Red: Single PHY degraded link speed or disconnected Nexsan Unity Storage Expansion Reference Guide Unity 22...
  • Page 23 SAS OUT ports to another storage unit SAS link status LEDs (2 Green: All four physical layers (PHY) of each port connected with IN, 2 OUT) consistent link speed (12 G or 6G) Red: Single PHY degraded link speed or disconnected Nexsan www.nexsan.com...
  • Page 24 About the power supply units (PSUs) on the facing page About the disk drives and drive carriers on page 26 Disk drive specifications on page 29 Cable specifications on page 30 Nexsan Unity Storage Expansion Reference Guide Unity 24...

  • Page 25: About The Sas I/O Controllers

    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. Nexsan www.nexsan.com...

  • Page 26: About The Disk Drives And Drive Carriers

    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: Unity 2200 Expansion drive slot numbers Nexsan Unity Storage Expansion Reference Guide Unity 26...
  • Page 27 Chapter 1: Overview Figure 1-17: US 224 Expansion drive slot numbers Figure 1-18: US 316 drive slot numbers Figure 1-19: US 424 Expansion drive slot numbers Nexsan www.nexsan.com...
  • Page 28 Components and features Figure 1-20: US 460 Expansion drive slot numbers Nexsan Unity Storage Expansion Reference Guide Unity 28...

  • Page 29: Disk Drive Specifications

    Chapter 1: Overview Disk drive specifications Unity Storage System disk drives must be qualified by Nexsan and meet these specifications: Unity 2200 and Unity 2200 Expansion 3U 3.5” front-loading form factor Supports up to 15 HDDs and one FASTier read drive HDD drives 7.2K: 600 GB | 900 GB | 1.2 TB | 1.8 TB...

  • Page 30: Us 424 Expansion

    To connect a Nexsan Unity Storage Expansion, use high-quality SAS cables that meet these length requirements: Minimum length: 0.5 meters Maximum length: 3 meters For updated disk drive information or to purchase approved SAS cables, please contact your Nexsan sales representative or reseller. Nexsan Unity Storage Expansion Reference Guide Unity 30...

  • Page 31: Chapter 2: Installing Unity Storage Systems

    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 Package contents Installing a Unity 2200, US 2200X, or US 316 in a rack Installing a Unity 4400, Unity 6900, or US 224 in a rack Installing a US 424 in a rack Installing a US 460 in a rack Installing the disk drives in the Unity 2200, US 2200X, and US 316...

  • Page 32: Preparing For The Installation

    FASTier, SSD, and HDD drives. Check that the components included in your shipment correspond to your packing slip. Two SAS cables (Mini SAS HD to Mini SAS HD) Two power cords Two KVM cables One electrostatic discharge (ESD) wrist strap DVD containing the Discovery Wizard and documentation Nexsan Unity Storage Expansion Reference Guide Unity 32...

  • Page 33: Unity 4400 Storage System

    Two outer-rack rail assemblies (inner-chassis rails are already installed) Four mounting screws with 4 washers to attach outer-rack rails to the rack (one on the front and one on the back for both the left and right rail assemblies) Nexsan www.nexsan.com...

  • Page 34: Us 224 Expansion Storage Expansion

    SAS cables (Mini SAS HD to Mini SAS HD) Two power cords One electrostatic discharge (ESD) wrist strap See also Components not included in your package US 424 Expansion Storage Expansion Your shipment includes these components: Nexsan Unity Storage Expansion Reference Guide Unity 34...

  • Page 35: Us 460 Expansion Storage Expansion

    Components not included in your package Client computer Network switches Network cables Recommended Acceptable 10GbE Ethernet: 10GbE Ethernet: CAT6a cable CAT6 or higher cable 1GbE Ethernet: 1GbE Ethernet: CAT6 cable CAT5E or higher cable 10GbE Fiber Multimode duplex LC/LC 50µ OM3 fiber cable Nexsan www.nexsan.com...

  • Page 36: Installing A Unity 2200, Us 2200X, Or Us 316 In A 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. Nexsan Unity Storage Expansion Reference Guide Unity 36...
  • Page 37 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. Nexsan www.nexsan.com...
  • Page 38 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. Nexsan Unity Storage Expansion Reference Guide Unity 38...
  • Page 39 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 Unity 2200, US 2200X, and US 316 on page 54. Nexsan www.nexsan.com...

  • Page 40: Installing A Unity 4400, Unity 6900, Or Us 224 In A 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. Nexsan Unity Storage Expansion Reference Guide Unity 40...
  • Page 41 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. Nexsan www.nexsan.com...
  • Page 42 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. Nexsan Unity Storage Expansion Reference Guide Unity 42...
  • Page 43 5. Tighten the thumbscrews that hold the front of the unit to the rack. Install the US 460 in a rack ► What's Next: Continue with Installing the disk drives in the Unity 2200, US 2200X, and US 316 on page 54. Nexsan www.nexsan.com...

  • Page 44: Installing A Us 424 In A 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. Nexsan Unity Storage Expansion Reference Guide Unity 44...
  • Page 45 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. Nexsan www.nexsan.com...
  • Page 46 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. Nexsan Unity Storage Expansion Reference Guide Unity 46...
  • Page 47 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 Unity 2200, US 2200X, and US 316 on page 54. Nexsan www.nexsan.com...

  • Page 48: Installing A Us 460 In A Rack

    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. Nexsan Unity Storage Expansion Reference Guide Unity 48...
  • Page 49 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. Nexsan www.nexsan.com...
  • Page 50 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. Nexsan Unity Storage Expansion Reference Guide Unity 50...

  • Page 51: Install Cma Arms Onto The Rack

    Improper installations could result in damage to cabling and components. Install CMA arms onto the rack 1. From the inside of the rack, slide the bracket over the 1U location below the rail kit. Nexsan www.nexsan.com...
  • Page 52 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. Nexsan Unity Storage Expansion Reference Guide Unity 52...
  • Page 53 4. Push the US 460 completely into the rack; you should hear the locking tabs click into position. 5. Tighten the thumbscrews that hold the front of the US 460 to the rack. ► What's Next: Continue with Installing the disk drives in the Unity 2200, US 2200X, and US 316 on the next page. Nexsan www.nexsan.com...

  • Page 54: Installing The Disk Drives In The Unity 2200, Us 2200X, And Us 316

    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. Nexsan Unity Storage Expansion Reference Guide Unity 54...
  • Page 55 3. Slide the disk drive into the drive slot until the lever starts to close. 4. Close the hard-drive carrier handle to lock the drive in place. 5. Repeat these steps for all remaining disk drives. ► What's Next: "Connecting and powering on" (page Nexsan www.nexsan.com...

  • Page 56: Installing The Disk Drives In The Us 224, Unity 4400, And Unity 6900

    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 Nexsan Unity Storage Expansion Reference Guide Unity 56...

  • Page 57: Installing The Disk Drives In The Us 424

    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 Nexsan www.nexsan.com...

  • Page 58: Installing The Disk Drives In The Us 460

    5. Repeat these steps for each drive. 2. Close the hard-drive carrier handle to lock the drive in place. 3. Repeat these steps for all remaining disk drives. ► What's Next: "Connecting and powering on" (page Nexsan Unity Storage Expansion Reference Guide Unity 58...

  • Page 59: Chapter 3: Connecting And Powering On

    Chapter 3 Chapter 3: Connecting and powering on This chapter explains how to connect and power on Unity Storage Systems. The chapter includes these topics: Connecting a Unity 2200 Expansion to a Unity 2200 Connecting a US 224 to a Unity 4400 or Unity 6900 Connecting a US 316 to a Unity 4400 or Unity 6900 Connecting a US 424 to a Unity 4400 or Unity 6900 Connecting a US 460 to a Unity 4400 or Unity 6900...

  • Page 60: Connecting A Unity 2200 Expansion To A Unity 2200

    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. ► What's Next: Proceed to Connecting the power cords on page 72. Nexsan Unity Storage Expansion Reference Guide Unity 60...

  • Page 61: Connecting A Us 224 To A Unity 4400 Or Unity 6900

    8. Cross-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" (page Note Be sure to snap all cables securely into place. ► What's Next: "Cascade configurations" (page Connecting the power cords on page 72. Nexsan www.nexsan.com...

  • Page 62: Connecting A Us 316 To A Unity 4400 Or Unity 6900

    Additional storage connections should be parallel connected. See "Cascade configurations" (page Note Be sure to snap all cables securely into place. ► What's Next: "Cascade configurations" (page Connecting the power cords on page 72. Nexsan Unity Storage Expansion Reference Guide Unity 62...

  • Page 63: Connecting A Us 424 To A Unity 4400 Or Unity 6900

    8. Cross-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" (page Note Be sure to snap all cables securely into place. ► What's Next: "Cascade configurations" (page Connecting the power cords on page 72. Nexsan www.nexsan.com...

  • Page 64: Connecting A Us 460 To A Unity 4400 Or Unity 6900

    8. Cross-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" (page Note Be sure to snap all cables securely into place. Nexsan Unity Storage Expansion Reference Guide Unity 64...
  • Page 65 Chapter 3: Connecting and powering on ► What's Next: "Cascade configurations" (page Connecting the power cords on page 72. Nexsan www.nexsan.com...

  • Page 66: Cascade Configurations

    With the Unity 6900, you can connect up to eight storage expansions. See "Cascading the Unity 6900 Storage System" (page Note For more details about connecting Nexsan Unity Storage Expansions, please consult your Quick Start Guide. Nexsan Unity Storage Expansion Reference Guide Unity 66...

  • Page 67: Cascading The Unity 4400 Storage System

    SAS ports on the first Unity Storage Expansion. See "Connecting a US 224 to a Unity 4400 or Unity 6900" (page 2. Parallel-connect the rest of the Unity Storage Expansions using the on-board SAS ports. Figure 3-1: Unity 4400 cascade example with the US 224 Nexsan www.nexsan.com...
  • Page 68 Cascade configurations Figure 3-2: Unity 4400 cascade example with the US 316 ► What's Next: "Connecting the power cords" (page Nexsan Unity Storage Expansion Reference Guide Unity 68...

  • Page 69: Cascading The Unity 6900 Storage System

    1. Cross-connect the first Unity Storage Expansion from the add-on HBA SAS ports on the Unity 6900 to the on-board SAS ports on the first Unity Storage Expansion. See "Connecting a US 460 to a Unity 4400 or Unity 6900" (page 2. Parallel-connect the rest of the Unity Storage Expansions using the on-board SAS ports. Nexsan www.nexsan.com...
  • Page 70 Cascade configurations Figure 3-3: Unity 6900 cascade example with US 424 Nexsan Unity Storage Expansion Reference Guide Unity 70...
  • Page 71 Chapter 3: Connecting and powering on Figure 3-4: Unity 6900 cascade example with four US 460s (maximum 7) ► What's Next: "Connecting the power cords" (page Nexsan www.nexsan.com...

  • Page 72: Connecting The Power Cords

    2. Using the included power cords, connect each power supply unit to an AC power source. Figure 3-5: Example showing a US 424 Expansion Note We strongly recommend that you use an uninterruptible power supply (UPS) to protect your enclosure. Nexsan Unity Storage Expansion Reference Guide Unity 72...

  • Page 73: Powering On

    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. Nexsan www.nexsan.com...

  • Page 75: Chapter 4: Monitoring

    Chapter 4 Chapter 4: Monitoring This chapter describes the status and activity LEDs that help you monitor the Nexsan Unity 2.0 Storate Systems and Unity Storage Expansions. The Chapter includes these topics: Monitoring the power supply units Checking enclosure LEDs...

  • Page 76: Monitoring The Power Supply Units

    A green flashing LED indicates an ACPI S1 state (Advanced Configuration and Power Interface); for information, see http://www.acpi.info/. Figure 4-1: Unity 2200 Expansion and US 316 Expansion Figure 4-2: US 224 Expansion Nexsan Unity Storage Expansion Reference Guide Unity 76...
  • Page 77 LED status Alarm LED: Indicates if there are faults on the PSU (power Red: PSU contains one or more supply unit) for each controller. faults Red (flashing): PSU alarm status is being identified. Off: PSU is functioning normally. Nexsan www.nexsan.com...

  • Page 78: Checking Enclosure Leds

    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. Nexsan Unity Storage Expansion Reference Guide Unity 78...

  • Page 79: Drive Carrier Leds

    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. A steady red LED indicates a drive failure. A blinking red LED indicates that a RAID rebuild is in progress. Nexsan www.nexsan.com...

  • Page 80: Us 460 Rear Enclosure Leds

    LED from the Unity firmware 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 Nexsan Unity Storage Expansion Reference Guide Unity 80...

  • Page 81: Control Panel Leds

    This table describes what each LED indicates when illuminated and any corrective action you may need to take. Table 4-5: Control panel LEDs Description Power Indicates power is being supplied to the system's power supply units. This LED is illuminated when the system is operating. Nexsan www.nexsan.com...

  • Page 82: Drive Carrier Leds

    If this LED is not lit, it means no power is being provided for the drive. A steady red LED indicates a drive failure. A blinking red LED indicates that a RAID rebuild is in progress. Nexsan Unity Storage Expansion Reference Guide Unity 82...

  • Page 83: Us 460 Rear Enclosure Leds

    Identifies the location of the enclosure, and enables users to turn on Amber (flashing): the LED from the Unity firmware 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 Nexsan www.nexsan.com...

  • Page 84: Monitoring The Controllers

    Unity 2200 Expansion US 224 Expansion US 316 Expansion US 424 Expansion Figure 4-5: I/O controller LEDs The controller IO ports, reset button and IO status LEDs are described in this table. Nexsan Unity Storage Expansion Reference Guide Unity 84...

  • Page 85: Monitoring The Disk Drives

    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. Nexsan www.nexsan.com...
  • Page 86 Monitoring the disk drives Figure 4-6: US 224 Figure 4-7: US 316 Expansion and Unity 2200 Expansion Figure 4-8: US 424 Expansion Nexsan Unity Storage Expansion Reference Guide Unity 86...
  • Page 87 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). Status (Red) A steady red LED indicates a drive failure. If this LED is not lit, the drive has no faults. Nexsan www.nexsan.com...

  • Page 89: Chapter 5: Solving Problems

    Chapter 5 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 Powering down Replacing a controller Removing a disk drive Replacing a PSU Removing a Unity Storage Expansion...

  • Page 90: General Troubleshooting Tips

    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 73. Nexsan Unity Storage Expansion Reference Guide Unity 90...

  • Page 91: Powering Down

    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.

  • Page 92: Removing A Disk Drive

    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. Nexsan Unity Storage Expansion Reference Guide Unity 92...

  • Page 93: Replacing A Psu

    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. Nexsan www.nexsan.com...

  • Page 94: 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.
  • Page 95 Select the node representing the storage pool that you want to delete. Properties panel b. Expand the storage pool’s Properties panel. c. Click the Delete Pool button. 4. Unity prompts you to confirm the action. Type Yes in the text box. 5. Click Yes to delete the storage pool. Nexsan www.nexsan.com...

  • Page 96: Removing A Storage Enclosure

    Before you can physically remove a storage enclosure, you must: 1. Remove all volumes on the storage enclosure that are allocated to storage pools. For Nexsan Unity Storage System, you must remove the storage pools hosted on the unit, as described in Deleting a storage pool on page 94.

  • Page 97: Appendix A: Technical Specifications

    Appendix A Appendix A: Technical specifications This chapter lists the technical specifications of the Nexsan Unity Storage Expansions. It includes these topics: Unity 2200 Expansion general specifications US 224 Expansion general specifications US 316 Expansion general specifications US 424 Expansion and US 460 Expansion general specifications...

  • Page 98: Unity 2200 Expansion General Specifications

    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) Nexsan, Inc. Nexsan www.nexsan.com...

  • Page 99: Us 224 Expansion General Specifications

    Power consumption: varies depending on the number and size of drives, running fans, and room temperature. Cooling system: 2 hot-swappable APC units 8x 40mm cooling fans Variable speed blowers, two per APC. Total of four blowers per enclosure. Nexsan, Inc. Nexsan Unity Storage Expansion Reference Guide www.nexsan.com...

  • Page 100: Us 316 Expansion General Specifications

    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) Nexsan, Inc. Nexsan www.nexsan.com...

  • Page 101: Us 424 Expansion And Us 460 Expansion General Specifications

    174 mm dimensions Width 16.69'' 424 mm Depth 40.30'' 1033.78 mm Weight 99.6 lbs. 45 kg (no drives installed) 207.6 lbs. 93.7 kg (all drives installed) Power US 424 Expansion supply units Nexsan, Inc. Nexsan Unity Storage Expansion Reference Guide www.nexsan.com...
  • Page 102 Cooling system: 4 x 80mm and 4 x 40mm PWM cooling fans Redundant cooling Power US 460 Expansion supply units Two 1,650W PSUs, hot swappable and redundant AC Input voltage: 200-240VAC auto-ranging, 47Hz-63Hz input (high line power only) Nexsan, Inc. Nexsan www.nexsan.com...

  • Page 103: Appendix B: Regulatory Compliance

    Appendix B Appendix B: Regulatory compliance This chapter includes these topics: Regulatory compliance statements Regulatory agency compliance...

  • Page 104: Regulatory Compliance Statements

    Acoustic level shall not exceed a weighted sound power of 6.9 Bels at normal operation tested to ISO7779. Regulatory agency compliance The Nexsan Unity Storage Expansions comply with the following Regulatory Agency requirements. Product safety standards UL60950 Information Technology Equipment (US) CSA C22.2 No 60950 Information Technology Equipment (Canadian Law)
  • Page 105 Canadian standard, Industry Canada ICES-003 CE Mark GS Mark TUV Safety Mark Product safety certifications on power supplies as a component UL Recognized Component (QQGQ2) TUV BG Certification CB Certificate and Report CE Mark BSMI Nexsan, Inc. Nexsan Unity Storage Expansion Reference Guide www.nexsan.com...
  • Page 106 This product is protected by one or more of the following patents, and other pending patent applications worldwide: Nexsan® is a trademark or registered trademark of Nexsan, Inc.. The Nexsan logo is a registered trademark of Nexsan, Inc.. United States patents US8,191,841, US8,120,922;...

This manual is also suitable for:

Nexsan unity 6900Nexsan unity 4400Nexsan unity storage 224Nexsan unity storage 316Nexsan unity storage 424Nexsan unity storage 460

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