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NEC Storage ST1220 User Manual

Disk expansion unit
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SA2500/WA2500
NEC Storage ST1220
User Guide
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Summary of Contents for NEC Storage ST1220

  • Page 1 SA2500/WA2500 NEC Storage ST1220 User Guide...
  • Page 2 This page is deliberately left empty.
  • Page 3 Proprietary Notice and Liability Disclaimer The information disclosed in this document, including all designs and related materials, is the valuable property of NEC Computers and/or its licensors. NEC Computers and/ or its licensors, as appropriate, reserve all patent, copyright and other proprietary rights to this document, including all design, manufacturing, reproduction, use, and sales rights thereto, except to the extent said rights are expressly granted to others.

  • Page 4: Table Of Contents

    User Guide TABLE OF CONTENTS Table of Contents......................4 Regulatories........................6 Momentary Voltage Drop Prevention ................... 6 CE Statement ........................6 FCC Statement ........................6 BSMI Statement........................6 Packing list ........................7 Notes on Use - Always read the notes.- ................8 Safety Indications ......................8 Symbols Used in This User's Guide and Warning Labels ...........9...
  • Page 5 Installing to / Removing from Rack .................31 Checking the Installation Components ................31 Required Tools ........................32 Installing the Disk Expansion Unit in an NEC or Third Vendor Rack........ 32 Removing the Disk Expansion Unit from the Rack............38 Connecting ........................39 SAS Interface Cable......................

  • Page 6: Regulatories

    User Guide Regulatories Momentary Voltage Drop Prevention This product may be affected by a momentary voltage drop caused by lightning. To prevent a momentary voltage drop, an AC uninterruptible power supply (UPS) unit should be used. NOTE: 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.

  • Page 7: Packing List

    User Guide Packing list Check the contents in the package. The package contains various accessories, as well as the Disk Expansion Unit itself. Check with the packing list and make sure you have everything and that individual components are not damaged.

  • Page 8: Notes On Use - Always Read The Notes

    User Guide NOTES ON USE - ALWAYS READ THE NOTES.- The following includes information necessary for proper and safe operation of the Disk Expansion Unit. Safety Indications Handle the Disk Expansion Unit as instructed in this User's Guide to ensure proper and safe operation.

  • Page 9: Symbols Used In This User's Guide And Warning Labels

    User Guide SYMBOLS USED IN THIS USER'S GUIDE AND WARNING LABELS Cautions Indicates that improper use may cause an electric shock. Indicates that improper use may cause fumes or fire. Indicates that improper use may cause fingers to be caught.

  • Page 10: Safety Notes

    If smoke, odour, or noise is present, immediately switch off the unit and disconnect the power plug from the outlet (switching off the power of the NEC Express server can cut off power to the Disk Expansion Unit). Contact your sales agent.

  • Page 11: Power Supply And Power Cord Use

    User Guide CAUTION Keep water or foreign matter away from the Disk Expansion Unit. Do not let any form of liquid (water etc.) or foreign matter (e.g., pins or paper clips) enter the Disk Expansion Unit. Failure to follow this warning may cause an electric shock, a fire, or a failure of the chassis.
  • Page 12 User Guide CAUTION Plug in to a proper power source. Use a proper wall outlet. Using an improper power source may cause a fire or a power leak. Do not install the Disk Expansion Unit in a place where you will require an extension cord.

  • Page 13: Rack

    User Guide Rack CAUTION Never carry or install the rack by yourself. More than one person is required to carry or install the rack. Failure to follow this instruction may cause the rack to fall, resulting in personal injuries and/or the break of surrounding devices.

  • Page 14: Installation, Relocation, Storage, And Connection

    Do not use any unauthorized interface cable. Use only interface cables provided by NEC and locate a proper device and connector before connecting a cable. Using an authorized cable or connecting a cable to an improper destination may cause a short circuit, resulting in a fire.

  • Page 15: Cleaning, And Working With, Internal Devices

    User Guide CAUTION Do not use the equipment in the place where corrosive gases exist. Make sure not to locate or use the server in the place where corrosive gases (sulphur dioxide, hydrogen sulphide, nitrogen dioxide, chlorine, ammonia, ozone, etc) exist.

  • Page 16: During Operation

    The Disk Expansion Unit contains some components that are only good for a limited period of time and require replacement, such as the internal fan module and power unit. For stable operation of the Disk Expansion Unit, NEC recommends you replace these components on a regular basis. Contact your sales agent for more information.

  • Page 17: Warning Labels

    User Guide Warning Labels Warning labels are attached to components posing possible danger or in their vicinity in the Disk Expansion Unit to inform the user that a hazardous situation may arise when operating the chassis (do not take off any label or soil it). If you find any label unattached, almost peeled off, or soiled, making the warning illegible, contact your sales agent.

  • Page 18: Notes On Handling ~ For Proper Operation

    NEC recommends you use NEC genuine products. Some third-party products claim they support the Disk Expansion Unit. However, repair of the chassis due to a failure or damage...

  • Page 19: Accessories Check

    The Disk Expansion Unit contains some components that are only good for a limited period of time and require replacement, such as fans. For stable operation of the Disk Expansion Unit, NEC recommends you replace these components on a regular basis. Contact your sales agent for more information.

  • Page 20: Overview Of The Disk Expansion Unit

    User Guide 1. Overview of the Disk Expansion Unit This section describes the overview of the Disk Expansion Unit. DISK EXPANSION UNIT SPECIFICATIONS Item Specifications Remarks ANSI T10 SAS 1.0/1.1 External Interface Serial Attached SCSI Compliant. HDD Capacity 12 (max)

  • Page 21: Names And Functions Of Components

    User Guide 2. Names and Functions of Components Names of the Disk Expansion Unit components are described below. Hard disk drives can be installed in the bays located at the front of the Disk Expansion Unit. These bays are numbered as described in the Figure 2-1.
  • Page 22 User Guide (1) Handle Use this handle to pull out the Disk Expansion Unit from the rack. (2) 3.5-inch hard disk drive bay The 3.5-inch hard disk drive bay can be equipped with optional hard disk drives. The slot numbers are defined as 1 to 12.

  • Page 23: Rear View

    User Guide REAR VIEW [Standard ] (11) (12) (10) [Equipped with an optional power unit] (12) (11) (10) Figure 2-2...
  • Page 24 User Guide Power Unit The Power Unit supplies DC power to the Disk Expansion Unit. AC inlet The power cord connects to the AC inlet. Power Unit LED (green/amber/red) The Power Unit LED lights green if the power unit are operating normally.

  • Page 25: Front Bezel

    User Guide FRONT BEZEL Figure 2-3 Front Bezel Knob Slide the Front Bezel Knob in order to remove the front bezel from the chassis. Key Slot Use the security key to unlock and lock the front bezel. LED Window...

  • Page 26: Led Indications

    User Guide LED INDICATIONS The LED indications and their meanings are described below. If the Disk Expansion Unit does not operate as usual or at all, first check the LED indications. Power LED The Power LED lights green when the Disk Expansion Unit is powered on.

  • Page 27: Power Unit Led

    User Guide Power Unit LED The Power Unit LED lights green when the power unit operates normally. NOTES: When an optional power unit is installed, the Disk Expansion Unit can operate normally if another power unit is defective (redundant function). The defective power unit can be hot-swapped with a functional one, without powering off the system.

  • Page 28: Disk Drive Leds

    When replacing a defective hard disk drive in a disk array configuration, the data is automatically rebuilt (auto rebuild function). Refer to the User’s Manual that comes with the NEC Express server or the User’s Guide that comes with the disk array controller for the disk data recovery procedure.

  • Page 29: Installing And Connecting The Disk Expansion Unit

    User Guide 3. Installing and Connecting the Disk Expansion Unit INSTALLING Install the Disk Expansion Unit in a standard EIA 19-inch rack assembly. For more information on the rack installation, refer to the manual that comes with the rack, or consult your sales agent.
  • Page 30 User Guide Do not install the Disk Expansion Unit in an area fitting any of the conditions listed below. Installing the rack in such an area, and further installing the Disk Expansion Unit into such a rack may cause some malfunctions to occur.

  • Page 31: Installing To / Removing From Rack

    Disk Expansion Unit. CAUTION Observe the following instructions to use the NEC Express server safely. Failure to follow these instructions may cause a fire, personal injury, or property damage. Refer to the Safety Notes section for more information.

  • Page 32: Required Tools

    Installing the Disk Expansion Unit in an NEC or Third Vendor Rack The Disk Expansion Unit can be installed to a proper NEC or third vendor rack. The installation procedure is described below. 1. Define where you wish to install the Disk Expansion Unit.
  • Page 33 User Guide 3. Install the inner rail of the guide rail assembly on the Disk Expansion Unit. The guide rail assembly consists of the following two components: Inner rail: Component fixed to the Disk Expansion Unit Outer rail: Component fixed to the rack...
  • Page 34 ST1220 is installed. 6. Attaching in an NEC rack → Rear Side In NEC racks, attach 4 screws in positions B and C, and tighten them. In racks of lesser depth, tighten the screws in position B and B'.
  • Page 35 User Guide → Front Side Ａ Ｄ Attach a screw in position A and A', adjust the rail length and secure the screws. Use position D if necessary. IMPORTANT: Make sure to securely tighten all the screws adjusting the rail length.
  • Page 36 User Guide CAUTION Do not lift the Disk Expansion Unit by yourself. Do not pinch your fingers with mechanical components. 10. Fix the unit to the rack with four M5 screws on both sides at the front of the unit.
  • Page 37 User Guide www.nec-computers.com Screw Front of the Unit Inner rail Outer rail Rack-mounting tips When the inner rail attached to the equipment does not slide easily into the outer rail slot, loosen an outer rail attachment screw, try again and secure the screw only once the inner and outer rails positions are finely tuned (see the above figure).

  • Page 38: Removing The Disk Expansion Unit From The Rack

    Do not use the handle or the front bezel to lift the unit. 1. After confirming that the power of the NEC Express server and the Disk Expansion Unit are set to OFF, disconnect the power cable and all the interface cables connected to the Disk Expansion Unit.

  • Page 39: Connecting

    CONNECTING Connect the Disk Expansion Unit to the NEC Express server through the SAS interface cable, connect the power cord(s) to the AC inlet(s) of the Disk Expansion Unit and insert the power plug(s) into the AC outlet(s).

  • Page 40: Sas Interface Cable

    User Guide SAS Interface Cable To connect the Disk Expansion Unit to the disk array controller in the NEC Express server, connect the specified SAS interface cable to the first SAS connector starting from the left of the server.

  • Page 41: Cable Connections (Example)

    2. Fasten the knob screws using your fingers to secure the connector. 3. Fix the SAS interface cables by using cable ties as appropriate. Cable Connections (Example) I/O module SAS cable Disk array controller Disk expansion unit NEC Express server...

  • Page 42: Power Cord

    User Guide Power Cord Connect the power cord to the AC inlet of the Disk Expansion Unit and insert the power plug into AC outlets. 1. Connect the power cord to the AC inlet of the Disk Expansion Unit.

  • Page 43: Basic Operations

    User Guide 4. Basic Operations This section describes the basic operations of the Disk Expansion Unit. INSTALLING OR REMOVING THE FRONT BEZEL Remove the front bezel in order to install or remove hard disk drives. Removing IMPORTANT: The front bezel cannot be opened if it is...
  • Page 44 User Guide 4. Insert the security key into the key slot, and rotate the key (pushing it slightly towards the front bezel) to release the lock. Lock Unlock 5. Slightly slide the front bezel knob and remove the front bezel from the Disk Expansion Unit.

  • Page 45: Installing

    User Guide Installing 1. Insert the right side edge of the front bezel in the dent of the right side handle. 2. Attach the front bezel to the Disk Expansion unit by using the right side of the front bezel as a supporting point.

  • Page 46: Powering On/Off

    User Guide POWERING ON/OFF Power off the Disk Expansion Unit. When two power units are installed, press both power switches. To power on the Disk Expansion Unit, check that a power cord is connected to the AC inlet and outlet, and press the power switch.

  • Page 47: Installing Built-In Optional Devices

    The user can install or remove any of the options documented as described in this manual. However, NEC assumes no liability for any potential resulting damage. We recommend you ask a maintenance engineer having the expert and detailed knowledge on the system to install or remove any options.

  • Page 48: Anti-Static Measures

    User Guide Anti-static Measures Most electric components in the Disk Expansion Unit are composed of electric parts easily affected by static electricity. When installing or removing options, follow the precautions below to avoid any damages resulting from static electricity.

  • Page 49: Preparing For Installation And Removal

    2. Turn off the power of the NEC Express server. Refer to the User’s Guide of the NEC Express server for more information. 3. Turn off the power of the Disk Expansion Unit. This is not required for the installation or removal of a hard disk, which can be hot-swapped.

  • Page 50: Installing And Removing Procedures

    The hard disk bay in the Disk Expansion Unit contains 12 slots. IMPORTANT: Do not use any hard disks that are not authorized by NEC. Installing a third-party hard disk drive may cause a failure of the disk expansion chassis as well as of the hard disk drive.

  • Page 51: Installing A Hard Disk

    User Guide Installing a Hard Disk Install a hard disk drive in the Disk Expansion Unit as described in the following procedure. The procedure is identical for all slots. NOTES: It is mandatory to remove the front bezel before installing or removing a hard disk drive.
  • Page 52 User Guide 3. Remove the empty tray from the slot in which you wish to install a hard disk. To do so, pull the knob towards you (1) to disengage the handle (2). IMPORTANT: Do not remove the empty trays inserted in the hard disk drive slots.
  • Page 53 User Guide 5. Depending on the Hard Disk Drive interface: SAS Hard Disks (a) Insert the hard disk drive at the back of the tray. (b) Secure the hard disk drive using 4 screws in position C. SATA hard Disks (a) Plug the SATA to SAS adapter to the back of your hard disk drive.

  • Page 54: Removing A Hard Disk

    User Guide (c) Secure the adapter to the back of the tray using 4 screws in position A. (d) Secure the hard disk drive to the front of the tray using 4 screws in position B. 6. Hold the hard disk with tray by its handle and insert the hard disk into the slot.
  • Page 55 User Guide 2. See the section "Installing or Removing the Front Bezel". Unlock the front bezel by using the security key and remove the front bezel. 3. Pull the knob towards you (1) to disengage the handle (2).

  • Page 56: Rebuilding Disks

    User Guide 4. Hold the handle and pull out the hard disk. 5. To use the Disk Expansion Unit without a hard disk in the slot, remove the hard disk drive (and adapter, if applicable) from the tray, and install the empty tray into the slot.

  • Page 57: Power Unit

    User Guide Power Unit When two power units are installed, the system can operate without any interruption if a failure occurs in one of the power units (redundant feature). Installing a Power Unit Add a power unit as described in the following procedure.

  • Page 58: Replacing A Defective Power Unit

    1. Confirm which of the units is defective by checking the power units LEDs on the rear of the Disk Expansion Unit. 2. Power off the NEC Express server and then power off the Disk Expansion Unit. 3. Remove the power cord connected to the defective power unit.
  • Page 59 User Guide 5. If you cannot replace the defective power unit with a functional one, install the dummy power unit removed in step 2 of the installation procedure (in this case skip 6, 8,9,10 and 11 in the procedure below).

  • Page 60: Configuration

    User Guide 6. Configuration Once the disk array controller has been added to the server and the Disk Expansion Unit is connected with the server, configure the disk array using the “CONFIGURATION UTILITY”. IMPORTANT: Incorrect use of "CONFIGURATION UTILITY" may cause damage on the disk array configuration, and your valuable data may be lost.

  • Page 61: Management

    Backup NEC recommends you make backup copies on a regular basis of your valuable data stored in hard disks of the Disk Expansion Unit. For more information on the backup storage devices suitable for the Disk Expansion Unit and the backup tools, contact your sales representative.

  • Page 62: Cleaning The Disk Expansion Unit

    User Guide Cleaning the Disk Expansion Unit Clean the Disk Expansion Unit on a regular basis to keep the chassis in a good shape. WARNING Observe the following instructions to use the Disk Expansion Unit safely. Failure to follow these instructions may result in death or serious personal injury.

  • Page 63: Troubleshooting

    If your problem is documented in the list below, take the corresponding appropriate action and refer, if necessary, to the User's Manual that comes with the NEC Express server or the User's Guide that comes with the disk array controller.
  • Page 64 → Confirm that the interface cable and the power cord are connected securely. θ Are the hard disks NEC-recommended for the Disk Expansion Unit? → The use of devices not recommended by NEC is not supported. θ Are the hard disks installed correctly? →...
  • Page 65 User Guide The auto rebuild function cannot be performed (the rebuild by hot swap is disabled) in the RAID configuration (except RAID0) θ How long did you wait between the removal of the defective hard disk and the installation of the new disk? →...

  • Page 66: Relocation And Storage Of Disk Expansion Unit

    User Guide RELOCATION AND STORAGE OF DISK EXPANSION UNIT WARNING Observe the following instructions to use the Disk Expansion Unit safely. Failure to follow these instructions may result in death or serious personal injury. Refer to the Safety Notes section for more information.

  • Page 67: User Support

    2. See to the "Troubleshooting" section. If your problem is documented, try to take the relevant corrective actions. 3. Confirm that the software products required to operate the NEC Express server are installed correctly. 4. Check the server with a virus detection program. Make a backup copy of the important data saved on the hard disks.
  • Page 68 This page is deliberately left empty.

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