IBM DCS3860 Installation, User's, And Maintenance Manual
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IBM DCS3860 Installation, User's, And Maintenance Manual

IBM DCS3860 Installation, User's, And Maintenance Manual

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IBM System Storage DCS3860 Storage System
Installation, User's, and Maintenance
Guide
SC27-5942-00

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  • Page 1 IBM System Storage DCS3860 Storage System Installation, User's, and Maintenance Guide SC27-5942-00...
  • Page 2 Before using this information and the product it supports, be sure to read the general information in the “Safety” on page ix and “Notices” on page 161 sections. This edition applies to the IBM System Storage DCS3860 Storage System with controller firmware version 7.86, and to all subsequent releases and modifications until otherwise indicated in new editions.

  • Page 3: Table Of Contents

    Removing the handles . . 35 Safety ....ix Installing the DCS3860 into the rack cabinet using a lift tool . . 35 About this document ..xv Installing the DCS3860 into the rack cabinet without Who should read this document .
  • Page 4 Index ....181 Sample information record . . 142 Installed device records . . 143 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 5: Figures

    Removing the HIC connector . 87 DCS3860 drive drawer . Aligning the HIC connector . . 88 Location of the DCS3860 controllers . Opening the drive drawer . 90 Cache battery and memory cache DIMM Inserting a hard disk drive into the connector locations .
  • Page 6 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 7: Tables

    . 89 DCS3860 weights . 18 Troubleshooting. . 124 DCS3860 component weights . 18 Parts listing (DCS3860 storage system and DCS3860 shipping carton dimensions when EXP3800 expansion enclosure) . . 133 shipped with drives. . 18 Seven-segment display sequence code...
  • Page 8 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 9: Safety

    Safety Information document that is provided with your ® IBM System Storage DCS3860 storage expansion enclosure. Each caution and danger statement is numbered for easy reference to the corresponding statements in the translated document. v Danger: These statements indicate situations that can be potentially lethal or extremely hazardous to you.
  • Page 10 Throw or immerse into water v Heat to more than 100° C (212° F) v Repair or disassemble Dispose of the battery as required by local ordinances or regulations. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 11 Statement 3 CAUTION: When laser products (such as CD-ROMs, DVD drives, fibre optic devices, or transmitters) are installed, do not: v Remove the covers of the laser product as it might expose the product to hazardous laser radiation. There are no serviceable parts inside the device. v Perform procedures, or use controls or adjustments, other than those specified in this guide, as it might cause radiation exposure.
  • Page 12 There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician. Statement 29 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 13 CAUTION: This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conductor at the equipment. This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conductor at the equipment. If this connection is made, all of the following conditions must be met: v This equipment shall be connected directly to the dc supply system earthing electrode conductor or to a bonding jumper from an earthing terminal bar or...
  • Page 14 State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 15: About This Document

    Chapter 7, “Records,” on page 141 provides a table that you can use to record and update important information about your DCS3860, including serial number and device records. Whenever you add options to your DCS3860, be sure to update the information in this table.

  • Page 16: Getting Information, Help, And Service

    If you need help, service, or technical assistance or just want more information about IBM products, you will find a wide variety of sources available from IBM to assist you. This section contains information about where to go for additional information about IBM and IBM products, what to do if you experience a problem with your system, and whom to call for service, if it is necessary.

  • Page 17: Ibm System Storage Productivity Center

    System Storage Productivity Center to manage multiple IBM System Storage product configurations from a single management interface. To learn how to incorporate the DS Storage Manager with the IBM System Storage Productivity Center, see the IBM System Storage Productivity Center Information Center at the following website: publib.boulder.ibm.com/infocenter/tivihelp/v4r1/index.jsp...

  • Page 18: Hardware Service And Support

    Hardware service and support You can receive hardware service through IBM Integrated Technology Services or through your IBM reseller, if your reseller is authorized by IBM to provide warranty service. Go to the following Web site for support telephone numbers: www.ibm.com/planetwide...

  • Page 19: Chapter 1. Introduction

    DCS3860. Overview The DCS3860 storage system is designed to meet the storage needs of highly scalable, data streaming applications in high-performance computing environments. The DCS3860 is a high-performance system that is designed to meet midrange storage requirements.

  • Page 20: Operating System Support

    SATA, and the ability to support the SCSI command set. Operating system support For host operating system support, refer to the IBM DCS3860 product at the IBM System Storage Interoperation Center (SSIC): www.ibm.com/systems/support/storage/config/ssic/index.jsp DCS3860 Features For a list of the operating specifications, such as weight, height, and heat output, see “Specifications”...

  • Page 21: Inventory Checklist

    Table 1. DCS3860 features (continued) v Technology – Support for RAID 0, 1, 3, 5, 6, and 10 disk arrays – Support for up to 360 SAS or NL-SAS disk drives when using five additional expansion enclosures – Controller cache size of 12 GB per...

  • Page 22: Enclosure

    PDU jumper cord Drive drawer assembly (5) After you unpack the DCS3860, ensure that you have the following items: v 4U-high storage enclosure (1) – A box containing Disk Drive Modules (if you have ordered: the box may be shipped in this carton or separately) –...

  • Page 23: Receiving Product Updates And Support Notifications

    – Washers (8) – Clip nuts (4) Important: The DCS3860 does not ship with region-specific ac power cords. You must obtain the IBM-approved power cords for your region. For more information, see Chapter 10, “Power cords,” on page 157.

  • Page 24: Dcs3860 Components

    – The storage system logical drives and systems are degraded. DCS3860 components The DCS3860 storage system directs and manages the I/O activity between a host and the drives in a RAID array. The EXP3800 expansion unit provides additional storage capacity to the storage system.

  • Page 25: Drive Drawers

    Two power supplies v Two fan assemblies You can use the hot-swap features of the DCS3860 to remove and replace DDMs, power supplies, fan assemblies, ESMs, and RAID controllers without turning off the enclosure. You can maintain the availability of your system while a hot-swap device is removed, installed, or replaced.

  • Page 26: Disk Drive Modules (Ddms)

    Disk Drive Modules (DDMs) The DCS3860 supports up to 60 DDMs in five drive drawers that are accessible from the front of the storage expansion enclosure. The disk drawer system board supports 6 Gbps SAS (Serial Attached SCSI) and Near-Line SAS interface.

  • Page 27: Controllers

    LEDs found on the RAID controller. Controller cable connections The SAS ports, Ethernet ports, and the optional HIC on a DCS3860 system are depicted with a diagram. Each controller contains the following connections: v Two 6 Gbps x4 SAS expansion ports to connect EXP3800 expansion enclosures...
  • Page 28 1. Connect the management station to the management port of the system. 2. Start IBM DS Storage Manager from your management station. The Enterprise Management and Confirm Initial Automatic Discovery window opens. 3. Complete one of the following tasks: v If the DHCP server is set up, select Automatic Discovery from the Enterprise Management Window to discover the storage system.

  • Page 29: Cache Battery And Memory Cache Dimm

    The Cache Active LED is off when there is no data stored in cache. The DCS3860 storage system is available with 24 GB (12 GB per controller) of cache memory.

  • Page 30: Environmental Service Modules (Esms)

    ESM fails. Note: To preserve the optimal airflow, do not remove a failed ESM FRU from the DCS3860 chassis until you are ready to replace it with a new FRU. The ESMs contain the storage expansion enclosure control logic, interface ports, and LEDs.

  • Page 31: Power Supplies

    Note: To preserve the optimal airflow, do not remove a failed power supply FRU from the DCS3860 chassis until you are ready to replace it with a new FRU. Figure 8 on page 14 shows the power supply controls, LEDs, and connectors.

  • Page 32: Fan Assemblies

    The fan operates at maximum speed under the following conditions: v During the first few minutes after power is applied to the DCS3860 enclosure v When one of the disk drawers is pulled out or not in the closed/latched position...

  • Page 33: Software And Hardware Compatibility And Upgrades

    Software and firmware support code upgrades Table 2 on page 16 shows the minimum supported software and firmware versions. To enable support for the DCS3860, ensure that the software and firmware of the system are of the latest versions. Chapter 1. Introduction...

  • Page 34: Determining Firmware Versions

    To find the latest Storage Manager software, controller firmware, NVSRAM, ESM firmware, and drive firmware, check IBM System Storage Support website: www.ibm.com/support/entry/portal.. For instructions to install the IBM DS Storage Manager V10.83 or later, see the IBM ® System Storage DS Storage Manager Version 10.8 Installation and Host Support Guide.

  • Page 35: Specifications

    Dimensions The DCS3860 conforms to the 19-inch rack standard. Table 3 lists the dimensions of the DCS3860 with all its components. Table 3. DCS3860 storage expansion enclosure dimensions (with disk drives).

  • Page 36: Environmental Requirements And Specifications

    Controller with cache battery backup and 3.06 kg (6.75 lb) SAS HIC Shipping dimensions The DCS3860 is shipped on a pallet. Table 6 and Table 7 list shipping carton dimensions. Table 6. DCS3860 shipping carton dimensions when shipped with drives. Width...

  • Page 37: Temperature And Humidity Requirements For Storage Expansion Enclosure When In Storage Or In Transit

    (40,000 ft.) above sea level Airflow and heat dissipation Figure 11 on page 20 shows the intended airflow for the DCS3860. Allow at least 30 inches in front of the storage system and at least 24 inches behind the storage system for service clearance, ventilation, and heat dissipation.

  • Page 38: Dcs3860 Airflow

    Wave form = 1/2 Sine, 10 g @5ms Operational Vibration (Random): While in its normal operating position, the DCS3860 continues operating when subjected to a random vibration test using the criteria shown in Table 11. This test uses the indicated spectral power density for 30 minutes in each of the three axes.

  • Page 39: Electrical Requirements

    Power failures – If power fails, the unit automatically performs a power on recovery sequence without operator intervention after power is restored. Attention: The DCS3860 does not support 90-136V AC sources. It supports 200-240 V AC sources only. Ensure that the AC input is appropriate for the DCS3860 before turning on the power switches.

  • Page 40: Heat Output, Airflow, And Cooling

    IEC C19 to C20 jumper cords. The C19 plug connects to the DCS3860 power supply and the other end is used to connect to the rack PDU outlets. It is not shipped with the power cords that can be used to connect it directly to an electrical outlet in the destination country.

  • Page 41: Example Of Cold Aisle/Hot Aisle Rack

    back T42 racks front Perforated tiles or gratings 1220 mm cold Cold aisle aisle width front 2440 mm between T42 racks center lines of hot and cold aisle back Hot aisle back T42 racks front Airflow Figure 12. Example of cold aisle/hot aisle rack configuration Chapter 1.
  • Page 42 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 43: Chapter 2. Installing The Dcs3860

    5. Install disk drives in the DCS3860 storage enclosure. See “Installing the DDMs” on page 39. 6. If there are other DCS3860 storage enclosures to be installed in the same rack, repeat step 3 to step 5 for the other DCS3860 units.

  • Page 44: Handling Static-Sensitive Devices

    Manager software, see the IBM System Storage DS Storage Manager Version 10.8 Installation and Host Support Guide for the applicable operating system. 10. Turn on the DCS3860 (if you have not done so already). See “Powering on the DCS3860” on page 56.

  • Page 45: Unpacking The Shipping Box

    (see “Unpacking the shipping box”). If any items are missing, contact your IBM reseller before you proceed with installation. 4. Verify that you have the correct version of the IBM DS Storage Manager software. 5. Continue with “Preparing the site” on page 29.

  • Page 46: Handles (4), Packaged In A Smaller Box Inside The Shipping Box

    Handles (4), packaged in a smaller box inside the shipping box v DDMs (20 or more, depending on your DCS3860 order), packaged in a smaller box inside the shipping box, if you have ordered the DDMs to be shipped with the storage system.

  • Page 47: Tools And Hardware Required

    – Washers (8) – Clip nuts (4) Important: The DCS3860 does not ship with region-specific ac power cords. You must obtain the IBM-approved power cords for your region. For more information, see Chapter 10, “Power cords,” on page 157.

  • Page 48: Preparing The Rack

    IBM does not support the ruggedized rack feature for the 2101-200 rack when it is used with the DCS3860. The DCS3860 does not fit in the 2101-200 rack if the ruggedized rack feature is installed. v Do not install the DCS3860 above EIA Unit position 32 in any rack. Installing the DCS3860 above U position 32 requires a ladder and is not supported.

  • Page 49: Front Rack Mounting Template

    Install first Install first Install after you mount enclosure Install after you mount enclosure FRONT Rack Mounting Template Rail assembly Rail assembly (front left) (front right) Install first Install first Figure 13. Front rack mounting template Chapter 2. Installing the DCS3860...

  • Page 50: Rear Rack Mounting Template

    Printed in the U.S.A Figure 14. Rear rack mounting template Before installing the DCS3860 in a rack, you must install the rails and rack-mounting hardware that is shipped with your storage enclosure. The DCS3860 requires an Electronic Industries Association (EIA) 310-D Type A 19-inch rack cabinet.
  • Page 51 Note: For proper weight distribution, install the support rails as low in the rack cabinet as possible. The rack cabinet must have a minimum depth of 100 cm (40 in.). If you are using a non-IBM rack or cabinet, review the information in Chapter 9, “Specifications for non-IBM rack installation,” on page 149.
  • Page 52 M5 screws, washers, and clip nuts to secure the brackets to the rack mounting holes. Ensure that you clip the nuts on the rack. Do not tighten the screws until the DCS3860 is installed in the rack (see 8 on page 37).

  • Page 53: Installing And Removing The Handles

    Thumb latch 3. Store the handles for future use. Installing the DCS3860 into the rack cabinet using a lift tool Complete the following steps to install the storage enclosure if you have acquired a lift tool: 1. Prepare the storage enclosure for installation: a.
  • Page 54 For more information about the lift tool, see “Installation overview” on page 25. b. Before you move or relocate a rack that contains DCS3860 storage enclosures, see “Relocating the DCS3860” on page 52 for additional information.
  • Page 55 8. Tighten all of the M5 screws to secure the rear bracket to the rack cabinet. 9. Continue with “Installing the DDMs” on page 39. Chapter 2. Installing the DCS3860...

  • Page 56: Installing The Dcs3860 Into The Rack Cabinet Without Using A Lift Tool

    Installing the DCS3860 into the rack cabinet without using a lift tool Complete the following steps to install the storage enclosure if you do not have a lift tool: ≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb) 1.

  • Page 57: Installing The Ddms

    To maintain a uniform airflow across all drive drawers, the storage enclosure must be configured with a minimum of 20 drives, with four drives in the front row of each of the five drive drawers. Chapter 2. Installing the DCS3860...

  • Page 58: Dcs3860 Drive Drawer With Labeled Disk

    Drives Figure 15. DCS3860 drive drawer with labeled disk drives The drive drawers are preinstalled in the DCS3860, but the DDMs are shipped separately from the drive drawers. Ensure that you install the storage enclosure in the rack cabinet before you install DDMs in the storage enclosure.
  • Page 59 Push the bezel into the front of the unit until the latches on both sides of the bezel lock it in place. Chapter 2. Installing the DCS3860...
  • Page 60 10. Continue with Chapter 3, “Cabling the DCS3860 storage system,” on page 43. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 61: Chapter 3. Cabling The Dcs3860 Storage System

    SAS Host port 1, 2, 3, and 4 on Host Interface Card Each of the DCS3860 host ports is a x4 multilane, 6 Gbps universal mini-SAS port. Connect a SAS cable from your host system SAS host bus adapter to a host port on each controller.

  • Page 62: Enclosure Id Settings

    The enclosure ID is a unique two-digit identifier for each enclosure in the storage system configuration. In a dual controller or ESM configuration, both enclosure IDs are identical under normal operating conditions. Each DCS3860 storage system and EXP3800 expansion enclosure in the storage system configuration must have a unique storage enclosure ID.

  • Page 63: Connecting A Mini-Sas Cable

    Blue plastic tab Figure 19. Removing a mini-SAS cable 2. As you pull the tab, pull out the connector to remove it from the port. Chapter 3. Cabling the DCS3860 storage system...

  • Page 64: Cabling The Exp3800 Expansion Enclosure

    Figure 20. ESM connectors SAS In connector 1 Connect a SAS cable to this connector and to either the drive expansion port on the DCS3860 controller or the SAS Out (↓) connector of another EXP3800 expansion enclosure. SAS In connector 2 Connect a SAS cable to this connector and to either the drive expansion port on the DCS3860 controller or the SAS Out (↓) connector of another...

  • Page 65: Adding A Storage Enclosure To A Running Dual-Controller Configuration

    ESM, see the Installation Guide that is shipped with the storage enclosure. 1. Ensure that the status of the DCS3860 storage system is Optimal. 2. Use the expansion enclosure Rack Installation Instructions document to install the new expansion enclosure in the rack.

  • Page 66: Redundant Drive Channel Pair

    The maximum number of drives that can be installed is 360. In DCS3860, one drive channel from each controller combines to form a redundant drive-channel pair. If any component of the drive channel fails, the controllers can still access the storage enclosures in the redundant drive-channel pair.

  • Page 67: Connecting Secondary Management Interface Cables

    (see Figure 24 on page 51). Important: 1. To minimize security risks, do not connect the DCS3860 to a public LAN or public subnet. Use a local private network for the DCS3860 and the storage management station Ethernet connectors.

  • Page 68: Host-Agent (In-Band) Management

    Figure 24 on page 51 shows the direct (out-of-band) management method. Note: Do not connect the DCS3860 storage system Ethernet ports to a public network or public subnet. To minimize security risks, create a private network between the DCS3860 storage system and the management station.

  • Page 69: Direct (Out-Of-Band) Management Method

    HBAs and device drivers, consult the readme file that comes with the DCS3860 controller firmware. For a SAS attached host, attach a SAS cable to each HBA. Continue with “Connecting SAS hosts to the DCS3860” to connect the other end of each cable to a controller. Connecting SAS hosts to the DCS3860 The DCS3860 can support up to 1024 hosts when attached to the SAS Connectivity ®...

  • Page 70: Cabling The Power Supply

    2. Connect the power cable to the power supply. 3. Continue with “Powering on the DCS3860” on page 56 for the initial startup of the storage expansion enclosure. Relocating the DCS3860 Before you move a DCS3860 with populated hard drive drawers, you must obtain a rack relocation kit.
  • Page 71 You must remove the drives from the DCS3860 and place them in the boxes that come with the relocating kit. v You must label the drives using the labels that are shipped with the relocating kit. Chapter 3. Cabling the DCS3860 storage system...
  • Page 72 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 73: Chapter 4. Operating The Dcs3860 Storage System And Exp3800 Expansion Enclosure

    4. Use the Storage system Profile or DCS3860 Profile to ensure that the following functions are enabled: v For the DCS3860, enable Media Scan both at the controller level and at the LUN level. © Copyright IBM Corp. 2013...

  • Page 74: Hardware Inspection

    Maintain an up-to-date storage system profile for the storage configuration. Save the profile to a server disk that will remain accessible in case of a DCS3860 storage configuration failure. Do not save the profile only to a LUN in the storage system.

  • Page 75: Power-Supply Switches And Connectors For Dcs3860 Dc Models

    Power supply B Figure 25. Power-supply switches and connectors for DCS3860 dc models 5. Determine the status of all the components in the storage system configuration by completing the following steps: Chapter 4. Operating the DCS3860 storage system and EXP3800 expansion enclosure...

  • Page 76: Installing The Ibm Ds Storage Manager

    Ensure that all the LEDs show normal status. For more information about LED status for expansion enclosures, see “Checking the LEDs” on page 61. b. Check all LEDs on each component in the DCS3860 storage system. Ensure that all the LEDs show normal status. For information about LED status, see “Checking the LEDs”...

  • Page 77: Monitoring Status Through Software

    Ensure that you read the readme file that is included with the DCS3860 storage system firmware package (whether the firmware is accessed by the Web or a DVD) for any special requirements or restrictions that apply to that firmware version.

  • Page 78: Firmware Updates

    Run the IBM DS Storage Manager continuously, and frequently check the configuration status. IBM DS Storage Manager is the best way to monitor the storage system, diagnose a problem, and recover from a hardware failure. Complete the following steps to check the status of and identify a problem with the storage system.

  • Page 79: Checking The Leds

    LEDs indicate a possible failure; a blue LED on a component indicates that it is safe to remove the component. The DCS3860 also has a blue system locator LED that is lit when the menu function is selected in the Subsystem Management window, causing the Locate command to be sent to the DCS3860.

  • Page 80: Controller Leds

    When this LED is lit, it indicates that the link is established between the controller and a host. When this LED is flashing, it indicates activity on the link. When this LED is off, no link is established. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 81: Esm Leds

    Service Action Allowed LED (blue) When this LED is lit, it indicates that it is safe to remove the controller from the DCS3860; no activity is taking place, and no data remains in the memory cache. The normal condition of this LED is off.

  • Page 82: Fan Assembly Leds

    When this green LED is lit, it indicates that the link through the SAS cable is successful. Service Action Allowed (blue) This LED is supported only when the EXP3800 is attached to a DCS3860 controller. Do not remove the ESM unless this blue LED is lit. Fault LED (amber) When this amber LED is lit, it indicates that the ESM has failed.

  • Page 83: Ac Power-Supply Leds

    1 Standby power LED (green) Future use only. 2 DC power LED (green) When this green LED is lit, it indicates that the DCS3860 is turned on and is supplying 5-volt, 12-volt, and 48-volt dc power. 3 Service Action Allowed LED (blue) When this blue LED is lit, it indicates that it is safe to remove the power supply.

  • Page 84: Disk Drive Leds

    This section describes the service LEDs on the disk drives. The drive power/drive activity LEDs are located on the front of the drive drawer. See “Drive drawer LEDs” on page 65 for more information. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 85: Disk Drive Leds

    Power is applied but drives are spun-down because they are offline, are part of an "Exported - Ready to import" array, or are incompatible or not certified. Chapter 4. Operating the DCS3860 storage system and EXP3800 expansion enclosure...

  • Page 86: Seven-Segment Numeric Display Leds

    "Seven-segment display sequence codes and their causes" section of this document. Cache memory and cache battery Cache memory size stores read and write operations in the DCS3860 system. Each storage controller in the DCS3860 storage system contains 12 GB of cache memory to store read and write operations.

  • Page 87: Cache Memory

    For information, call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C007) Replace the battery units in the DCS3860 storage system if they are identified as failing by the Subsystem Management window, or when the battery fault LEDs are lit.

  • Page 88: Turning Off The Storage System

    Storage Manager software and the amber LEDs to check the overall status of the DCS3860 . All LEDs should be green on the front of the storage system. If they are not, use the Storage Manager software to diagnose the problem so that the DCS3860 will power-on correctly later.
  • Page 89 Before you proceed, use the Storage Manager software to determine the status of the storage system components and special instructions. You might have to complete other procedures before you turn off the power. Chapter 4. Operating the DCS3860 storage system and EXP3800 expansion enclosure...

  • Page 90: Performing An Emergency Shutdown

    If one or more LEDs are flashing, it indicates that data is being written to or from the drives. Wait for all activity LEDs to stop flashing. 6. Turn off the ac power switch on the rear of the DCS3860 storage system in the storage system.

  • Page 91: Restoring Power After An Unexpected Shutdown

    – The storage system logical drives and arrays do not come online. – The storage system logical drives and arrays seem to be degraded. 6. Turn on both of the power-supply switches on the DCS3860 storage system. See “Solving problems” on page 123.

  • Page 92: Recovering From An Overheated Power Supply

    LEDs” on page 61 shows the location of the LEDs on the DCS3860. If the storage system temperature exceeds 45°C (113°F), the IBM DS Storage Manager displays a Needs Attention icon in the Subsystem Management window. If the air temperature inside the rack reaches 65°C (149°F), the power supplies automatically shut down.
  • Page 93 5. If the power supplies restarted automatically, go to step 8. 6. If the power supplies did not restart automatically, turn off both power switches on the DCS3860 storage system (see Figure 8 on page 14 and then power-off all connected EXP3800 expansion enclosures. Wait for a minute and then turn on power to all connected EXP3800 expansion enclosures.
  • Page 94 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 95: Chapter 5. Replacing Components

    Replacing components This section contains information about replacing components or installing optional devices in the DCS3860 storage system and EXP3800 expansion unit. Before you replace any component, ensure that you wear an anti-static wrist strap. Attention: To avoid overheating the storage enclosure and causing damage to its components, replace failed parts within 10 minutes, unless otherwise indicated.

  • Page 96: Removing A Controller

    “Replacing a controller” on page 80. Attention: Handle and install cables correctly to avoid degraded performance or loss of communication with devices. See Chapter 3 "Cabling the DCS3860" in this document for more information. 2. Disconnect all interface cables from the controller. Ensure that you label each cable so that you can reconnect it correctly.

  • Page 97: Removing And Installing A Cover

    Release levers Figure 36. Removing a controller a. Hold the release lever with orange attachment and open it. Both the release levers open. The controller moves out of the bay approximately 1 cm (0.4 inch). b. Hold both the release levers and pull the controller out of the enclosure. c.

  • Page 98: Replacing A Controller

    Optimal, replace that power supply before you proceed with the controller replacement procedure. v If you are replacing a failed controller with a replacement controller from IBM Service, ensure that you have ordered the replacement controller that contains the same amount of cache memory that is installed in the failed controller.
  • Page 99 Attention: Handle and install cables correctly to avoid degraded performance or loss of communication with devices. See Chapter 3 "Cabling the DCS3860" for more information. 7. Disconnect all attached interface cables from the failed controller. Be sure to label each cable so that you can reconnect it correctly to the new controller.

  • Page 100: Removing And Replacing A Controller

    10. Remove the host interface card and set it aside (see “Replacing a host interface adapter” on page 85). 11. Remove the battery from the failed controller (see “Replacing a memory cache battery” on page 103). IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 101: Removing The Battery Unit From The Controller

    Memory cache battery Figure 39. Removing the battery unit from the controller 12. Install the battery from step 11 on page 82 into the new controller (see “Replacing a memory cache battery” on page 103). 13. Install the host interface card you removed in step 10 on page 82 (see “Replacing a host interface adapter”...

  • Page 102: Removing And Disposing Of The System-Board Lithium Battery

    Dispose off the battery as required by local ordinances or regulations. Complete the following steps to remove the batteries for disposal: 1. Locate the battery compartment on the system board in the controller. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 103: Replacing A Host Interface Adapter

    United States, see http://www.ibm.com/ibm/environment/products/ batteryrecycle.shtml or contact your local waste disposal facility. In the United States, IBM has established a return process for reuse, recycling, or proper disposal of used batteries. For information on proper disposal of these batteries, contact IBM at 1-800-426-4333.

  • Page 104: Four Screws On The Cover Plate

    (on the side) Figure 41. Four screws on the cover plate 6. Loosen the three captive fasteners on the host interface card and gently pull the card up, off the controller. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 105: Removing The Hic Connector

    Cache backup flash memory device Figure 42. Removing the HIC connector 7. Align the new host interface card. Chapter 5. Replacing components...

  • Page 106: Working With Hot-Swap Ddms

    11. Reconnect the cables that you disconnected. 12. If necessary, turn on the storage system (see “Powering on the DCS3860” on page 56). 13. Check the WWIDs or the MAC addresses of the host ports after replacing the controller or the host port interface adapter, or both.
  • Page 107 – When adding DDM FRUs, if you are not installing all 60 DDM FRUs into the DCS3860, install the DDM FRUs in each drive drawer in the front row (slots 1, 4, 7, and 10). To maintain uniform airflow across all drive drawers, the...

  • Page 108: Opening The Drive Drawer

    The disk drive can be safely removed. Allowed LED v Hot-swap hardware: You can use certain hardware in DCS3860 to replace a failed DDM without turning off the storage expansion enclosure. You can continue to operate your system while aDDM is being removed or installed.

  • Page 109: Inserting A Hard Disk Drive Into The Connector

    Slightly press here while pushing the lever down to lock the drive Raised buttons Latch drive bay slots Figure 45. Inserting a hard disk drive into the connector 6. Install the DDM by completing the following steps: Note: The DDM comes installed in a drive enclosure. Do not attempt to detach the DDM from the enclosure.

  • Page 110: Installing Hot-Swap Hard Disk Drives

    Note: If you want to remove a DDM that is not in a failed or bypass state, use the IBM DS Storage Manager client program either to place the DDM in a failed state or to place the array that is associated with the DDM (or DDMs) in an offline state before you remove it from the enclosure.
  • Page 111 If the Service Action Allowed LED is lit and the Service Action Required LED is not lit, use the IBM DS Storage Manager to check the drive state. The drive might be part of an exported array - ready for import, and also might be incompatible or uncertified.

  • Page 112: Replacing Multiple Ddms

    Complete one of the following methods to upgrade DDMs: v Replacing all the DDMs at the same time You must back up the data on the affected DDMs and then turn off the DCS3860 storage system. Attention: Turn off the DCS3860 storage system before you turn off the EXP3800 expansion enclosure.
  • Page 113 Use this method if you are upgrading DDMs containing RAID 0 logical drives. All data currently on the DDMs is lost when you replace them. Therefore, you must back up all data that is currently on the DDMs. Turn off the DCS3860 storage system, so that it is inaccessible to other users.
  • Page 114 Turn off power to the DCS3860 storage system before you power off the EXP3800 expansion enclosure. Turn off both power supply switches on the back of the storage system.
  • Page 115 Complete the following steps to replace the DDMs one at a time: 1. Use the IBM DS Storage Manager software to check the status of the unit. Correct any problems that are reported. 2. Back up the data in the arrays and logical drives that are configured using the DDMs that you are replacing.

  • Page 116: Replacing An Ac Power Supply

    DDM might be faulty. See the IBM DS Storage Manager software for problem determination. 7. Use the IBM DS Storage Manager software to monitor the status of the new DDM and the progress of the data reconstruction. Wait for data reconstruction to finish.
  • Page 117 The power supplies are customer replaceable units (CRUs) and do not require preventive maintenance. Use only the supported power supplies for the storage system. Each power supply has a built-in sensor that detects the following conditions: v Over-voltage v Over-current v Overheated power supply If any of these conditions occurs, one or both power supplies will shut down.
  • Page 118 3. Attach the signal cables to the connectors. 4. Attach the power cords to the outlets. 5. Turn on the devices. (D005a) Complete the following steps to replace a power supply: IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 119 CAUTION: To prevent damage to the storage system components from overheating, replace a failed power supply within 5 minutes of removal. If replacing it will take longer than 5 minutes, stop all I/O activity to the storage system and turn off the power until you complete the replacement.

  • Page 120: Replacing A Power Supply

    Go to step 15. v The fault and ac power LEDs are lit but the dc power LED is off: The power supply is faulty. Turn off the power switch and contact your IBM technical-support representative for a replacement power supply.

  • Page 121: Replacing A Memory Cache Battery

    Receive the replacement part and are ready to install it in the enclosure. Before you begin: v Use the IBM DS Storage Manager to print a storage system profile. v Read the "Safety" section of this document. v Ensure that you wear an anti-static wrist strap.

  • Page 122: Removing A Controller

    3. Remove the cover (see “Removing and installing a cover” on page 79). 4. Place the controller on a flat surface. 5. Remove the failed battery unit from the controller. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 123: Removing A Battery Unit From The Controller

    Dispose off the battery as required by local ordinances or regulations. For more information, see the IBM Systems Environmental Notices and User's Guide on the support DVD that shipped with your unit. 6. Unpack the new battery unit. Set the new battery unit on a dry, level surface.

  • Page 124: Replacing The Memory Cache Dimm

    1. At the front of the storage expansion enclosure, remove the bezel by pressing inward on the latches (see Figure 53 on page 107). IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 125: Working With Environmental Service Modules

    Latch Latch Figure 53. Removing the bezel 2. Pull the bezel toward you to remove it from the enclosure. 3. Place the bezel to the front of the storage expansion enclosure (see Figure 53). 4. Press the bezel inward until both latches lock the bezel in place. Working with environmental service modules You must be ready with these things before you work with environmental service modules (ESM).

  • Page 126: Replacing A Fan Assembly

    5 minutes of removal. If replacing it will take longer than 5 minutes, stop all I/O activity to the storage expansion enclosure and turn off the power until you complete the replacement. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 127: Replacing A Drive Drawer

    Note: Although both fan assemblies (left and right) are identical, they are seated in the DCS3860 enclosure in opposite orientations. If the fan assembly cannot be fully inserted in the fan assembly bay, rotate it 180 degrees and reinsert it.
  • Page 128 At the rear of the drive enclosure, remove the right fan assembly. See “Replacing a fan assembly” on page 108 for the steps to remove a fan assembly. Figure 56 on page 111 indicates the area with the fan assembly removed. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 129: Rear View Of The Storage Expansion Enclosure

    Attention: If you are performing this procedure with the power turned on, you must reinstall the fan assembly within 5 minutes. Otherwise, the equipment could overheat. Cable Midplane chain mounting bracket Drive drawer mounting bracket Service action allowed LEDs Figure 56. Rear view of the storage expansion enclosure with the right fan assembly removed Note: 1) Each cable chain has a vertical mounting bracket that connects to the...

  • Page 130: Vertical Mounting Bracket That Connects To The

    Disconnect the left cable chain mounting bracket from the midplane. Hold the orange handle and pull the mounting bracket completely out of the storage expansion enclosure. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 131: Drive Drawer Release Lever On The Side Of The Drive Drawer

    h. Disconnect the left cable chain mounting bracket from the drive drawer. Hold the orange handle and pull the mounting bracket completely out of the storage expansion enclosure. Remove the left cable chain. i. Reinstall the left fan assembly. See “Replacing a fan assembly” on page 108 for the steps to install a fan assembly.

  • Page 132: Lock-Out Tumbler Located Above The Drawer

    7. Install the disk drives in the new drive drawer FRU by completing the following steps: a. Open the drive drawer by pulling the handles on the drive drawer towards you until the drive drawer stops. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 133: Replacing An Enclosure Chassis

    Wait at least 90 seconds or until each drive is recognized in the IBM DS Storage Manager Physical View before inserting the next drive. If you do not wait until the drive is recognized by the IBM DS Storage Manager, one or more drives will be marked as failed/bypassed or incompatible.

  • Page 134: Removing A Fan Assembly

    Power off the DCS3860 enclosure with the controllers CRUs/FRU first. Then, power off the drive expansion enclosures. 2. Remove the bezel of the DCS3860 enclosure with the enclosure chassis you want to replace. 3. Label the drive drawers of the enclosure.

  • Page 135: Rear View Of The Storage Expansion Enclosure With The Right Fan Assembly Removed

    Cable Midplane chain mounting bracket Drive drawer mounting bracket Service action ID/Diag allowed LEDs ID/Diag Figure 62. Rear view of the storage expansion enclosure with the right fan assembly removed Note: Each cable chain has a vertical mounting bracket that connects to the midplane and a horizontal mounting bracket that connects to the drive drawer.

  • Page 136: Vertical Mounting Bracket That Connects To The

    Do not use excessive force while removing the boards. You might damage the disk drawer or the disk drawer guides. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 137: Drive Drawer Release Lever On The Side Of The Drive Drawer

    a. Release the levers on each side of the drawer by pulling both levers towards the center. At the front of the storage expansion enclosure, pull the handles on the drive drawer to be removed until the drive drawer stops. The drive drawer should not come completely out of the enclosure at this time.
  • Page 138 18. Install the power supply modules and connect the power cords to the power supply modules. 19. Install the bezel. 20. Power on the drive expansion enclosures. Wait for five minutes and then turn on the controller enclosure. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 139 Use the Recovery Guru for guidance to fix any problems. Contact IBM Support if the problem persists. 22. Fill-out the RID tag and attach it to the new enclosure. 23. Pack the old chassis and the power supply module for shipping back to IBM. Chapter 5. Replacing components...
  • Page 140 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 141: Chapter 6. Hardware Maintenance

    The following table contains the problem, symptoms and error messages, along with suggested actions to take to resolve problems. Always use the IBM DS Storage Manager to diagnose storage system problems and component failures and find solutions to problems that have definite symptoms.

  • Page 142: Troubleshooting Problems In The Dcs3860 Storage System

    LED to be lit but not cause any individual component fault LEDs to be lit. (Drive PFA exceeded or nominal temperature exceeded errors are examples.) Follow the corrective actions in the Recovery Guru window. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 143 Table 20. Troubleshooting (continued) Problem indicator Component Possible cause Possible solutions Amber LED is lit storage Unsupported Controller configurations do not (continued) controller fault controller match. Check that host daughter LED (service card and cache memory are the action LED same in both controllers.
  • Page 144 LEDs are DCS3860. (activity and slowly flashing v DCS3860 does not have the correct firmware version. fault LEDs are not lit) IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 145 (dc models). Power-supply failure Replace the power supply. Operating Cool down the environment. environment is too Midplane failure Contact your IBM technical support representative. Amber LED is Drives (fault Drive identification No corrective action is needed. flashing...
  • Page 146 DCS3860 storage system are made. v Ensure that all the storage enclosures in the same channel pair have the same enclosure speed setting. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 147 If the LED is lit, replace the failed component. Faulty disconnect Check and install a new 30A device rated disconnect device. Midplane failure Replace the DCS3860. Contact your IBM technical-support representative. Unable to access Drives Incorrect storage Ensure that the SAS cables are...
  • Page 148 Storage system Storage enclosure is Verify that the storage enclosure enclosure is not not supported is supported by the DCS3860 detected storage system. SAS cable failed Replace the SAS cable. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 149 The script command to turn off "Prepare for a drive drawer SAA LED is: Removal" menu set enclosure [enclosureID] function in the IBM drawer [drawerID] DS Subsystem serviceAllowedIndicator=off; Management v The script command to turn off window.

  • Page 150: Parts Listing

    Replaceable components are of three types: v Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your responsibility. If IBM installs a Tier 1 CRU at your request, you will be charged for the installation. v Tier 2 customer replaceable unit: You may install a Tier 2 CRU yourself or request IBM to install it, at no additional charge, under the type of warranty service that is designated for your server.

  • Page 151: Dcs3860 Storage System Enclosure Parts List

    Figure 67. DCS3860 storage system enclosure parts list Table 21. Parts listing (DCS3860 storage system and EXP3800 expansion enclosure). CRU part CRU part number number FRU part Index Description (Tier 1) (Tier 2) number Rail kit 59Y5414 Fan assembly 90Y8598...

  • Page 152: Seven-Segment Display Sequence Codes And Their Causes

    2-digit diagnostic code. The following figure shows the seven-segment alphanumeric characters. Figure 68. Seven-segment alphanumeric characters The following table lists the sequence category codes and their associated detail codes. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 153 Startup errors and operational states are displayed in sequences. The numeric display not only helps to identify a component failure, but also provides information about the controller state in which the error occurred. The following table lists the different sequences and the corresponding errors. Table 22.

  • Page 154: Seven-Segment Display Sequence Code

    OS+ CF+ HX+ blank- The flash drive failed OS+ CF+ Fx+ blank- Power-on diagnostic failure: Failure of a component that is not a field SE+ dF+ blank- replaceable unit is detected IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 155: Repeating Sequences On The Seven-Segment Display And Corresponding Errors

    Table 23. Repeating sequences on the seven-segment display and corresponding errors (continued) Repeating Sequence Startup and Operational Error Failure of a processor DIMM or a cache SE+ dF+ dash+ CF+ dx+ blank- memory DIMM is detected Failure of a host interface card is detected SE+ dF+ dash+ CF+ Hx+ blank An incorrect number of cache backup SE+ LC+ dash+ CF+ Fx+ blank-...

  • Page 156: Determining Basic Information Of Drive Frus

    Incompatible module Determining basic information of drive FRUs IBM might ship drive FRUs of higher capacity than that of the drive FRUs they replace. These new drives are programmed in manufacturing to give the same capacity as the drive FRUs being replaced.

  • Page 157: An Ibm Hologram Label Example

    Refer to the drive properties given here. Do not refer to the drive properties given here. Figure 69. An IBM hologram label example Chapter 6. Hardware maintenance...
  • Page 158 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 159: Chapter 7. Records

    Whenever you add options to your storage expansion enclosure, be sure to update the information in this appendix. Accurate, up-to-date records make it easier to add other options and provide needed data whenever you contact your IBM technical support representative.

  • Page 160: Storage System And Controller Information Record

    Sample information record Table 28 on page 143 shows a sample information record. This network contains storage systems that are managed by using both the direct-management and host-agent-management method. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 161: Installed Device Records

    Table 28. Sample information record Storage system Management Controllers-Ethernet and IP Host-IP address name method addresses, and host name and host name Controller A Controller B Finance Direct Hardware Hardware Ethernet address Ethernet address = 00a0b8020420 = 00a0b80000d8 IP address = IP address = 192.168.128.101 192.168.128.102...
  • Page 162 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 163: Chapter 8. Rack Mounting Template

    DCS3860 to a rack. The locations for the M5 screws are highlighted in the templates. The DCS3860 is 4 U high. Align the template with the rack at a U boundary. U boundaries are shown as horizontal dashed lines in the rack mounting templates.

  • Page 164: Front Rack Mounting Template

    Install first Install first Install second Install second FRONT Rack Mounting Template Rail assembly Rail assembly (front left) (front right) Install first Install first Figure 70. Front rack mounting template IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 165: Rear Rack Mounting Template

    Rear bracket Rear bracket REAR Rack Mounting Template Rail assembly Rail assembly (rear left) (rear right) Rail mounting guide ® Printed in the U.S.A Figure 71. Rear rack mounting template Chapter 8. Rack mounting template...
  • Page 166 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 167: Chapter 9. Specifications For Non-Ibm Rack Installation

    Certified products should have the NRTL logos or marks somewhere on the product or product label. However, proof of certification must be made available to IBM upon request. Proof consists of such items as copies of the NRTL license or certificate, a CB Certificate, a Letter of Authorization to apply the NRTL mark, the first few pages of the NRTL certification report, Listing in an NRTL publication, or a copy of the UL Yellow Card.
  • Page 168 10. The rack or cabinet configuration must comply with all IBM requirements for "safe to service" (contact your IBM Installation Planning Representative for assistance in determining if the environment is safe).

  • Page 169: Rack Specifications

    OSHA- and CSA- approved nonconductive step ladder (unless other arrangements have been made with the local IBM Service Branch Office). Products installed over 2.9 m (9 ft.) above the floor requires a Special Bid to be completed before they can be serviced by IBM service personnel.

  • Page 170: Top View Of Non-Ibm Rack Specifications

    44.45 mm (1.75 in.) apart on center). The front and rear mounting flanges in the rack or cabinet must be 719 mm (28.3 in.) apart and the internal width bounded by the mounting flanges at least 494 mm (19.45 in.), for the IBM ™...

  • Page 171: Rack Specifications Dimensions, Top Front

    Rack Figure 74. Rack specifications dimensions, bottom front view 2. When installing the EXP3800 storage expansion enclosure into a non-IBM rack, contact your Installation Planning Representative to ensure a safe installation into your environment for rack mounting loads and floor loading. Weight for...
  • Page 172 DCS3860 fully loaded is 102.27 kg (255 lbs). The load per EIA unit that a standard EIA rack enclosure must be able to support is 25.49 kg (56.2 lbs) per unit. 3. AC or dc power drawers need to be support based on equipment purchased for the rack or cabinet.
  • Page 173 The perforations should yield at least 34 percent minimum open area per square inch. Chapter 9. Specifications for non-IBM rack installation...
  • Page 174 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 175: Chapter 10. Power Cords

    The cord set should have the appropriate safety approvals for the country in which the equipment will be installed. IBM power cords for a specific country or region are usually available only in that country or region.
  • Page 176 Australia, Fiji, Kiribati, Nauru, New Zealand, Papua New Guinea to AS/NZS 3112 39M5334 2.5m, 15A/250V, C19 Japan to JIS C8303, C8306 39M5342 2.5m, 20A/250V, C19 Argentina, Paraguay, Uruguay to IRAM 2073 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 177 Table 29. IBM power cords (continued) IBM power cord part number Description Used in these countries or regions 39M5346 2.5m, 15A/250V, C19 Korea (Democratic People’s Republic of), Korea (Republic of) to KSC 8305 39M5535 2.5m, 16A/250V, C19 Brazil to IEC 60083/75 39M5366 2.5m, 20A/250V, C19...
  • Page 178 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 179: Notices

    Web sites. The materials at those Web sites are not part of the materials for this IBM product and use of those Web sites is at your own risk.

  • Page 180: Trademarks

    All statements regarding IBM's future direction or intent are subject to change or withdrawal without notice, and represent goals and objectives only. All IBM prices shown are IBM's suggested retail prices, are current and are subject to change without notice. Dealer prices may vary.

  • Page 181: Important Notes

    IBM makes no representations or warranties with respect to non-IBM products. Support (if any) for the non-IBM products is provided by the third party, not IBM. Some software might differ from its retail version (if available) and might not include user manuals or all program functionality.

  • Page 182: Documentation Format

    In the request, be sure to include the publication part number and title. When you send information to IBM, you grant IBM a nonexclusive right to use or distribute the information in any way it believes appropriate without incurring any obligation to you.

  • Page 183: Electronic Emission Notices

    IBM recommends that you consult with qualified experts in this field to determine whether you are in compliance with the applicable regulations. Electronic emission notices The following statements apply to this product. The statements for other products intended for use with this product will appear in their accompanying manuals.

  • Page 184: Germany Electromagnetic Compatibility Directive

    Klasse A ein. Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu betreiben. Des Weiteren dürfen auch nur von der IBM empfohlene Kabel angeschlossen werden. IBM übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne Zustimmung der IBM verändert bzw.

  • Page 185: People's Republic Of China Class A Statement

    People's Republic of China Class A Statement Taiwan Class A Statement Taiwan Contact Information This topic contains the product service contact information for Taiwan. IBM Taiwan Product Service Contact Information: IBM Taiwan Corporation 3F, No 7, Song Ren Rd., Taipei Taiwan Tel: 0800-016-888...

  • Page 186: Japan Voluntary Control Council For Interference Class A Statement

    Association (JEITA) statement for less than or equal to 20 A per phase. This explains the JEITA statement for greater than 20 A per phase. Russia Electromagnetic Interference Class A Statement This statement explains the Russia Electromagnetic Interference (EMI) statement. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 187: Glossary

    Control Protocol/Internet Protocol publication and other related publications. If you (SNMP-TCP/IP) network-managing do not find the term you are looking for, see the environment. IBM Glossary of Computing Terms located at the See accelerated graphics port. following Web site: AL_PA www.ibm.com/ibm/terminology See arbitrated loop physical address.
  • Page 188 A command consists of the storage. command name abbreviation, and its DHCP See Dynamic Host Configuration Protocol. parameters and flags if applicable. A IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 189 direct access storage device (DASD) redundant drive loop. Each drive loop is A device in which access time is associated with two ports. Drive loops are effectively independent of the location of more commonly referred to as drive the data. Information is entered and channels.
  • Page 190 (I/O) bus capable of secondary logical drives, Global Mirroring transferring data between two ports at up to 100 Mbps, with standards proposals to IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 191 Early same DCS3860 storage system at the same versions had an 8-bit data path, later time. See also host. expanded to 16 bits. The "Extended Industry Standard Architecture"...
  • Page 192 A discovered or user entered property loop topology. value that is displayed underneath each device in the Physical and Data Path LPAR See logical partition. maps. See logical unit number. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 193 See medium access control. application failures. It can also be used to balance server workload and provide for management information base (MIB) planned maintenance. The information that is on an agent. It is an abstraction of configuration and status mini hub information.
  • Page 194 CPU and up to 10 peripherals (video, redundancy and fault tolerance in the disk, network, and so on). The PCI bus coexists in the PC with the Industry IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 195 RPM SCSI drive. set if a controller or I/O path fails. serial storage architecture (SSA) remote mirroring An interface specification from IBM in Online, real-time replication of data which devices are arranged in a ring between storage systems that are topology.
  • Page 196 A feature that can be connected to a small form-factor pluggable (SFP) system unit to provide additional storage An optical transceiver that is used to and processing capacity. convert signals between optical fiber IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 197 A program that installs part of itself as an extension of DOS when it is executed. storage partition topology In the DCS3860 Storage Manager client, topology the Topology view of the Mappings The physical or logical arrangement of window displays the default host group, devices on a network.
  • Page 198 A function that allows segmentation of nodes by address, name, or physical port and is provided by fabric switches or hubs. IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...

  • Page 199: Index

    107 DDM, replacing 92 data sheet 142 DDMs 88 DCS3860 firmware updates 60 disk drives 8 components 6 LEDs 63 drive LED activity described 89 dimensions 17 replacing 107 hard disk drive, replacing 92 © Copyright IBM Corp. 2013...
  • Page 200 141 Direct (out-of-band) 50 compatibility 15 installed device 143 Host-agent (in-band) 49 storage system Redundant drive channel pair 48 cabling 46 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 201 storage system (continued) configuring 49 information record 142 monitoring status 59 troubleshooting 60 turning off 70 storage system management methods 49 support code upgrades software and firmware 15 support notifications 5 support rails install 30 switches 29 system relocating 52 system configuration installing 51 System Storage Productivity Center xvii...
  • Page 202 IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide...
  • Page 204 Part Number: 46W6954 Printed in USA SC27-5942-00...

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