Dell PowerVault MD3000i Hardware Owner's Manual

Dell PowerVault MD3000i Manual

Dell PowerVault MD3000i manual content summary:

  • Dell PowerVault MD3000i | Hardware Owner's Manual - Page 1
    Dell™ PowerVault™ MD3000i RAID Enclosure Hardware Owner's Manual
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    A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, PowerEdge, and PowerVault are trademarks of Dell Inc.;
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    12 About the Enclosure Connections 12 Hardware Features 13 Indicators on the Enclosure Bezel 13 Front-Panel Indicators and Features 14 Back-Panel Indicators and Features 18 RAID Controller Modules 18 Cache Functions and Features 24 Power Supply and Cooling Fan Features . . . . . 24 2 Using
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    . . . 40 Advanced Features 42 Storage Partitions 42 Host Types 44 Snapshot Virtual Disks 44 Snapshot Repository Virtual Disk 45 Virtual Disk Service 46 Volume Shadow-Copy Service 46 Virtual Disk Copy 47 Using Snapshot and Disk Copy Together 48 Hardware Redundancy and Failover 48 Redundancy
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    60 Removing a RAID Controller Module 60 Installing a RAID Controller Module 61 Removing and Installing a RAID Controller Module Backup Battery Unit 62 Removing and Installing the Power Supply/Cooling Fan Module 64 Removing a Power Supply/Cooling Fan Module 64 Installing a Power Supply/Cooling
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    a Wet Enclosure 72 Troubleshooting a Damaged Enclosure 73 Troubleshooting Power Supplies 73 Troubleshooting Enclosure Cooling Problems . . . . . 75 Troubleshooting a Fan 75 Troubleshooting SAS Physical Disks 76 Troubleshooting Enclosure Connections 77 Hard Controller Failures and Lockdown
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    5 Getting Help 81 Obtaining Assistance 81 Technical Support and Customer Service . . . . . 82 Online Services 82 Automated Order-Status Service 83 Dell Enterprise Training 83 Problems With Your Order 83 Product Information 83 Returning Items for Warranty Repair or Credit . . . . . 83 Before
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    8 Contents
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    (NICs). The MD3000i storage array provides dual active/active RAID controller modules, redundant power supplies, and redundant fans. The RAID enclosure is designed for high-performance environments: eight-node clusters or multi-host storage access for up to 16 host servers. Storage management can be
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    following components: - RAID controller modules - NVSRAM - Physical disk NOTE: Dell recommends stopping all I/O to the array when downloading physical disk firmware. - Expansion enclosure management modules (EMMs) • Task-based configuration software (MD Storage Manager) • Optional snapshot virtual
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    storage array. • The PowerVault MD3000i Installation Guide provides installation and configuration instructions for both software and hardware. • The PowerVault MD Storage Manager CLI Guide provides information about using the command line interface (CLI). • The Dell PowerVault MD3000i Resource CD
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    with your RAID enclosure, including: - Power cords (2) - MD3000i Resource CD - Setting Up Your PowerVault MD3000i - Rail kit • Any relevant documentation, including: - Getting Started With Your System - Rack Installation Guide or Rack Installation Instructions - Product Information Guide (for
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    MD3000i RAID controller module also contains a SAS Out port connector. This port allows you the option to connect the RAID enclosure to an expansion enclosure. Refer to the PowerVault MD3000i Installation Guide for details and illustrated examples of how to configure your storage array. Hardware
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    lit, at least one power supply is supplying power to the enclosure. 3 Enclosure status (blue/amber) Steady amber: Power is on and enclosure is in reset state. Steady blue: Power is on and enclosure status is OK. Flashing blue: Enclosure LED is being blinked by MD Storage Manager. Flashing amber
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    Component Icon Enclosure status LED (blue/amber) Condition Steady amber: Power is on and enclosure is in reset state. Steady blue: Power is on and enclosure status is OK. Flashing blue: Enclosure LED is being blinked by MD Storage Manager. Flashing amber: Enclosure is in fault state. About Your
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    Condition Power LED (green) When lit, at least one power supply is supplying power to the enclosure. Split mode LED (green) Enclosure mode switch the switch setting after the system is turned on will have no effect on enclosure configuration until the system goes through a complete power cycle
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    Figure 1-3. Physical Disk Carrier LED Indicators 1 2 1 activity LED 2 status LED Table 1-3. Physical Disk Carrier Status LEDs Status LED Description Off Physical disk not yet discovered by host server or an unsupported disk is present Steady green Physical disk is online Green flashing
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    2 3 1 RAID controller module 0 2 RAID controller module 1 3 power supply/cooling fan modules (2) RAID Controller Modules The RAID controller modules provide high-performance, advanced virtual disk configuration, and fault-tolerant disk subsystem management. Each RAID controller module contains
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    . In addition, this configuration provides full redundancy through the use of either redundant disk array controller (RDAC) drivers or multipathing I/O (MPIO) drivers. For detailed information on cabling, see the PowerVault MD3000i Installation Guide. RAID Controller Module Connectors and Features
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    controller power) • One SAS Out port connector • Debug port For a description of each component on the front panel of the RAID controller module, see Table 1-4. For an explanation of how to connect the enclosure using the RAID controller module ports, see the PowerVault MD3000i Installation Guide
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    Table 1-4. RAID Controller Module Component Functions (continued) Item Component Icon 4 iSCSI In Port 1 Link Speed/Activity Status LED 5 Battery Fault LED (amber) 6 Cache Active LED (green) 7 iSCSI In Port 1 In-1 8 iSCSI In Port 1 Link Duplex Mode 9 Controller Fault LED (amber) Function
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    or is not active. Dell support only. 15 SAS Link Fault LED 16 SAS Out Port Out Amber: Between 1-3 links are connected. Green: All four links are connected. Off: All links are down. Provides SAS connection for cabling to a downchain expansion enclosure. The RAID controller module connects to the
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    the battery is replaced, Write Back is reenabled. The RAID controller module logs the age of the battery and issues a replacement reminder message approximately six weeks before expiration. After replacing the battery, you must use MD Storage Manager to reset the battery age. RAID Enclosure Thermal
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    loss of data. The RAID controller automatically switches to write-through if cache mirroring is disabled or if the battery is missing or has a fault condition. NOTE: Write cache settings are not user-configurable. Power Supply and Cooling Fan Features Your RAID enclosure supports two integrated, hot
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    to prevent damage to the enclosure and/or enclosure components. A power supply/cooling fan module can be replaced without powering down the enclosure. For information on removing and replacing the modules, see "Removing and Installing the Power Supply/Cooling Fan Module" on page 64. Figure 1-7 shows
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    /Cooling Fan Module LED Indicators Type DC power Color Icon Green Power Amber supply/cooling fan fault Function On: DC output voltages are within specifications. Off: No power or voltages not within specifications. On: DC output voltages are not within specifications or one (or both) fans are
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    disks, and disk groups • RAID levels supported by MD Storage Manager • Hot spare operations and rebuilds • Media errors and unreadable sectors • RAID operations and features • Advanced RAID features • Hardware redundancy and failover including cabling • Updating enclosure firmware • Best practice
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    Physical Disks Only Dell-supported 3.0-Gbps SAS physical disks are supported in the storage array. If the RAID controller module detects unsupported physical disks, it marks the disk as unsupported and the physical disk becomes unavailable for all operations. NOTE: The MD3000i enclosure must contain
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    for physical disk failure. SMART uses this information to report whether failure is imminent so that a physical disk can be replaced before failure occurs. The RAID controller monitors all attached drives and notifies users when a predicted failure is reported by a physical disk. Using Your
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    comprised of the available physical disk space that is not already assigned in the storage array. Free capacity is the space in a disk group that has not been Disk States The RAID controller module recognizes the following virtual disk states. Table 2-2. RAID Controller Virtual Disk States State
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    , fault tolerance, and data you are storing. The storage array supports RAID levels 0, 1, 5, and 10. RAID 0 RAID 0 uses disk striping to provide high data throughput, especially for large files in an environment that requires no data redundancy. RAID 0 breaks the data down into segments and writes
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    for actual storage. RAID 10 is automatically used when a RAID level of 1 is chosen with four or more physical disks. RAID Level Usage To ensure best performance, you should select an optimal RAID level when you create a system physical disk. The optimal RAID level for your disk array depends on
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    hot spares are defined, the rebuild process will be initiated by the RAID controller modules when a replacement physical disk is inserted into the storage array. Global Hot Spares The MD3000i supports global hot spares. A global hot spare can replace a failed physical disk in any virtual disk with
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    , the RAID software automatically attempts to rebuild the data to restore redundancy. If no hot spares are available, an automatic rebuild occurs when a new physical disk is installed. You can use MD Storage Manager to specify a physical disk to rebuild. The requirements for a replacement physical
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    while allowing full host server access to the virtual disks. Background initialization does not run on RAID 0 virtual disks. The background initialization rate is controlled by MD Storage Manager. You must stop an ongoing background initialization before you change the rate, or the rate change will
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    Foreground Initialization The RAID controller module firmware supports full foreground initialization for virtual disks. All access to the virtual disk is blocked during the initialization process. During initialization, zeros (0x00) are written to every sector of the virtual disk. The virtual disk
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    a RAID controller module restart, the firmware resumes the process from the last checkpoint. Virtual Disk Operations Limit The maximum number of active, concurrent virtual disk processes per controller is four. This limit is applied to the following virtual disk processes: background initialization
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    as the RAID level and expected usage. You can change the default value if user, large I/O environment (such as for multimedia application storage), performance can be optimized when a single I/O request is serviced Expansion Because the storage array supports hot pluggable physical disks, you can add
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    an active process on the other controller. RAID Background Operations Priority The controller supports a common configurable priority for the following RAID operations: background initialization, rebuild, copy back, virtual disk capacity expansion, RAID level migration, segment size migration, disk
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    present can be migrated from one storage array to another. Dell recommends that you only migrate disk groups that have all their associated member virtual disks in an optimal state. NOTE: Migrating disk groups from an MD3000i array to an MD3000 array is not supported. NOTE: The number of physical
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    between drive insertions, the storage array can become unstable and manageability is temporarily lost. • Migrating virtual disks from multiple storage arrays into a single storage array - When migrating virtual disks from multiple, different storage arrays into a single destination storage array
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    . Disk roaming is permitted whether the RAID controller module is either online or powered off. NOTE: The disk group must be offline before moving the physical disks. Advanced Features The RAID enclosure supports several advanced features: • Storage Partitioning, including host server-to-virtual
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    and must have special software (such as clustering software) to manage virtual disk sharing and accessibility. If either of the following is true, you must use more than one storage partition: • You want specific host servers to access specific virtual disks in the storage array. • You have host
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    : • You can define one host server-to-virtual disk mapping for each virtual disk in the storage array. • Host server-to-virtual disk mappings are shared between RAID controller modules in the storage array. • A unique LUN must be used by a host group or host server to access a virtual disk. • Not
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    turn, can result in data loss or an inaccessible snapshot. For details on mapping the snapshot virtual disk to the secondary node, refer to the Dell PowerEdge Cluster SE600W Systems Installation and Troubleshooting Guide on support.dell.com. Using Your RAID Enclosure 45
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    array. Microsoft VDS is a set of application programming interfaces (APIs) that provides a single interface for managing disks and other storage hardware, including creating volumes on those disks. The Microsoft VDS installer service for storage provisioning is available on the MD3000i Resource CD
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    Storage Management VSS Hardware Provider Tips: • The number of snapshot virtual disks that can be created using a single snapshot set varies with the I/O load on the RAID controller source virtual disk to the target virtual disk in a storage array. Source Virtual Disk - When you create a virtual disk
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    in the MD Storage Manager User's Guide. Virtual Disk Recovery together to back up data on the same storage array, or to restore the data on the snapshot Hardware Redundancy and Failover This section provides basic information on how to connect a host server to the RAID controller modules in a RAID
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    configured redundant storage array. Refer to the PowerVault MD3000i Installation Guide for examples of how to cable your host servers for redundancy. After you have made a physical connection between your MD3000i and host server, establish communication by using the iSCSI software initiator
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    to their original RAID controller module after the RAID controller module is replaced. Automatic failback occurs under the following conditions: • Data is protected by dual redundant paths to the host server. • The host server has multi-path failover software installed, and it is configured for auto
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    more information on clustering, a link to clustering documentation is included on the MD3000i Resource CD under Product Documentation. RAID Controller Failover Modes Failover provides redundant access to the virtual disks owned by either RAID controller module on the storage array. Failover happens
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    MD Storage Manager to upgrade the firmware for the RAID controller module, the controller NVSRAM, and the physical disks. In a redundant configuration, the RAID controller module firmware can be upgraded with no interruption to data access. RAID Controller Module Firmware The RAID controller module
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    by an NVSRAM update. You can download RAID controller module firmware and NVSRAM packages separately or together using MD Storage Manager. Physical Disk Firmware NOTE: Dell recommends stopping all I/O to the array when downloading physical disk firmware. You can also download physical disk packages
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    the storage array. Refer to the PowerVault MD3000i Installation Guide for information on configuring CHAP. • Refer to the User's Guide for information on configuring your iSCSI host servers to use with storage arrays in a storage area network (SAN). Advanced setting considerations for iSCSI target
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    install the following components: • Front bezel (optional) • Physical disks and disk carriers • RAID controller modules • Battery backup unit • Power supplies • Control as explained in the safety instructions found in your Product Information Guide Removing and Replacing the Front Bezel To access
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    Installing and Removing the Front Bezel 1 1 bezel lock 2 3 2 release tab/interlocking notch 3 U-shaped handle 4 To replace to the right. Removing and Installing Physical Disks Your enclosure supports up to 15 SAS 3.0-Gbps to remove and install physical disks in your storage array. NOTICE: Extra
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    To avoid data loss when removing a physical disk, Dell recommends that you verify with MD Storage Manager that the appropriate disk is being removed. Removing an disk carrier (see Figure 3-2). Figure 3-2. Installing and Removing Physical Disks 1 1 carrier release mechanism 2 2 disk carrier
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    while supporting the weight of the disk from the bottom. Installing SAS install the new physical disk into the carrier: NOTE: Data from virtual disks created on a PERC RAID controller cannot be migrated to an MD3000i or to an MD1000 expansion enclosure connected to an MD3000i. a If you are replacing
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    Figure 3-3. Installing a SAS Physical Disk in the Carrier 2 1 3 1 screws (4) 2 physical disk carrier 3 physical disk 2 With the physical disk carrier handle open, carefully align the channel on the disk carrier guide rail with the appropriate disk slot keying feature on the chassis face plate,
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    Troubleshooting SAS Physical Disks" on page 76. NOTE: At least two physical disks must be installed in the enclosure. Removing and Installing a RAID Controller Module The enclosure contains two RAID controller your Product Information Guide for safety information. Removing a RAID Controller Module 1
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    and Installing a RAID Controller Module 2 1 1 release tab 2 release lever Installing a RAID Controller Module 1 Carefully insert the RAID controller module For information on controller connections and cabling, see the PowerVault MD3000i Installation Guide. Installing Enclosure Components 61
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    . 1 Use MD Storage Manager to place the RAID controller module offline. See the MD Storage Manager documentation for more information. 2 Remove the RAID controller module (see "Removing and Installing a RAID Controller Module" on page 60). 3 Remove the screws holding the battery cover and remove the
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    . 7 Tighten the thumbscrew to secure the battery unit to the controller. 8 Reinstall the battery cover. 9 Reinstall the RAID controller module (see "Installing a RAID Controller Module" on page 61). 10 Reset the battery installation date using MD Storage Manager. Installing Enclosure Components 63
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    fan speed will decrease gradually when a new power supply/cooling fan module is installed. 1 Turn off the power supply you intend to remove using the on/off switch. 2 Using a Phillips-head screwdriver, loosen the two captive screws securing the power supply/cooling fan module in the bay (see Figure
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    Figure 3-6. Replacing the Power Supply 4 3 1 2 1 power supply 4 on/off switch 2 captive screws (2) 3 handle CAUTION: The power supply/cooling fan modules are heavy. Use both hands when removing. 3 Grasp the handle on the power supply and carefully pull the module out of the bay (see Figure
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    on/off switch on the new power supply. Removing and Installing the Control Panel The control panel powers the LED indicators on the front panel of the system enclosure. It is connected to the backplane and cannot be removed or replaced unless the system is powered down. CAUTION: Only trained service
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    Figure 3-7. Removing and Replacing the Control Panel 2 1 1 faceplate screws (16) 2 control panel 3 3 thumbscrews 6 Using the control panel assembly straight out from its connector on the backplane (see Figure 3-7). Installing the Control Panel 1 Align the top and bottom tabs on the control panel
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    connectors for the physical disks, RAID controller module, control panel, and power supply/cooling fan modules. 1 Complete the steps in "Removing the Control Panel" on page 66. 2 Remove the RAID controller modules from the enclosure. (See "Removing and Installing a RAID Controller Module" on page 60
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    and Replacing the Controller/Power Supply Cage 1 2 1 Phillips screws (4) 2 controller/power supply cage 5 Slide the controller/power supply cage out of the enclosure and place it aside. 6 Reaching into the enclosure chassis from the back, carefully disconnect the midplane from the control panel
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    Figure 3-9. Removing and Installing the Midplane 1 1 midplane 70 Installing Enclosure Components
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    for: Action Alert messages. See your storage management documentation. An unfamiliar constant scraping or See "Getting Help" on page 81. grinding sound when you access a physical disk. NOTE: At least two physical disks must be installed in the enclosure. Troubleshooting Your Enclosure 71
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    Disks" on page 56. 3 Remove the RAID controller modules from the enclosure. See "Removing and Installing a RAID Controller Module" on page 60. 4 Remove the power supply/cooling fan modules from the enclosure. See "Removing and Installing the Power Supply/Cooling Fan Module" on page 64. 5 Remove
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    properly installed: • All physical disks (both in their carriers and connected to the enclosure midplane) • Power supply/cooling fan modules • RAID controller modules • Enclosure midplane 2 Ensure that all cables are properly connected and that there are no bent pins in the connector. If problems
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    enclosure. A minimum of two physical disks must be installed. If they are not, install the minimum number of physical disks. If the problem persists, go to step 3. 2 Referring to the Recovery Guru procedure of the MD Storage Manager, locate the faulty power supply and note the status of the LEDs. If
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    5 Install a new power supply. See "Removing and Installing the Power Supply/Cooling Fan Module" on page 64. If the problem persists, see "Getting Help" on page 81. Troubleshooting Enclosure Cooling Problems Problem • MD Storage Manager issues a fan-related error message. • MD Storage Manager issues
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    problem is not resolved, install a new power supply/cooling fan module. See "Removing and Installing the Power Supply/Cooling Fan Module" on page 64. If the replacement fan does not operate, see "Getting Help" on page 81. Troubleshooting SAS Physical Disks CAUTION: Only trained service technicians
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    Enclosure is not seen by attached host server. Action • Inspect RAID controller module cables for connectivity problems, such as damaged or disconnected cables and poor connections. For detailed cabling instructions, see the PowerVault MD3000i Installation Guide. Troubleshooting Your Enclosure 77
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    Enclosure The RAID controller module is supported only in a Dell-supported enclosure. Upon installation in the enclosure, the controller performs a set of validation checks. The enclosure status LED is lit with a steady amber color while the RAID controller module completes these initial tests and
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    to ensure continued reliability of the storage array. Examples of noncritical events include the following: • One power supply has failed • One cooling fan has failed • One RAID controller module in a redundant configuration has failed • A battery has failed or has been removed • A physical
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    80 Troubleshooting Your Enclosure
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    Your Enclosure" on page 71. 2 Review the storage array status in MD Storage Manager and record any information provided. 3 Use Dell's extensive suite of online services available at Dell Support (support.dell.com) for help with installation and troubleshooting procedures. For more information, see
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    Technical Support and Customer Service Dell's support service is available to answer your questions about Dell™ hardware. Our support staff use computer-based diagnostics to provide fast, accurate answers. To contact Dell's support service, see "Before You Call" on page 84, and then see the contact
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    • Anonymous file transfer protocol (FTP) ftp.dell.com/ Log in as user: anonymous, and use your e-mail address as your password. Automated Order-Status Service To check on the status of any Dell™ products that you have ordered, you can go to support.dell.com, or you can call the automated order-
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    returned (such as power cables, media such as CDs and diskettes, and guides) if the return Express Service Code ready when you call. The code helps Dell's automated-support telephone instructions in your Product Information Guide. Contacting Dell For customers in the United States, call 800-WWW.DELL
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    several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1 Visit support.dell.com. 2 Verify your country or region
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    86 Getting Help
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    system to direct configuration and power management. ambient temperature - The temperature of the area or room where the system is located. ANSI - American National Standards Institute. The primary organization for developing technology standards in the U.S. application - Software designed to help
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    a processor, memory, and a physical disk. The modules are mounted into a chassis that includes power supplies and fans. BMC - Baseboard management controller. boot routine - A program that clears all memory, initializes devices, and loads the operating system when you start your system. Unless the
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    serial ports on your system. control panel - The part of the system that contains indicators and controls, such as the power button and power indicator. controller - A chip that controls processor of specific processing tasks. Configuration Protocol. A method of automatically assigning an IP address
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    of your system's software and hardware by collecting information about the system's components, such as the operating system, memory, peripherals, expansion cards, and asset tag. DNS - Domain Name System. A method of translating Internet domain names, such as www.dell.com, into IP addresses, such as
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    system structure used by MS-DOS to organize and keep track of file storage. The Microsoft® Windows® operating systems can optionally use a FAT file system chip that can be reprogrammed from a utility on diskette while still installed in a system; most EEPROM chips can only be rewritten with special
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    interface between the system board and storage devices. integrated mirroring - Provides simultaneous physical mirroring of two drives. Integrated mirroring functionality is provided by the system's hardware. See also mirroring. internal processor cache - An instruction and data cache built into the
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    iSCSI - Internet SCSI (Small Computer System Interface), a new Internet Protocol (IP)-based storage networking standard for linking data storage - Keyboard/monitor/mouse. KVM - Keyboard/video/mouse. KVM refers to a switch that allows selection of the system from which the video is displayed and for
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    specifically to the LAN. lb - Pound(s). LCD - Liquid crystal display. LED - Light-emitting diode. An electronic device that lights up when a current is passed through it. Linux - An operating system similar to UNIX® systems that runs on a variety of hardware systems. Linux is open source software
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    on a network. NAS systems have their own operating systems, integrated hardware, and software that are optimized to serve specific storage needs. NIC - Network interface controller. A device that is installed or integrated in a system to allow connection to a network. NMI - Nonmaskable interrupt
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    power to servers and storage systems in a rack. peripheral - An internal or external device, such as a diskette drive or keyboard, connected to a system. PGA - Pin grid array. A type of processor socket that allows you to remove the processor chip. physical disk - A hard drive installed in the RAID
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    . RAID array - Collection of storage disks managed under a RAID solution. The RAID array includes any disks attached to the RAID controller, including those contained in a supported expansion enclosure. RAM - Random-access memory. The system's primary temporary storage area for program instructions
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    the computer systems and storage. A SAN bypasses traditional network bottlenecks and supports direct high-speed data transfer between the servers and storage devices. SAN storage may consist of both hard-disk drive and tape storage devices that are connected through switches and bridges to multiple
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    changing settings in the configuration software for the devices. uplink port - A port on a network hub or switch used to connect to other hubs or switches without requiring a crossover cable. UPS - Uninterruptible power supply. A battery-powered unit that automatically supplies power to your system
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    to manage system resources-memory, disk drives, or printers, for example. UTP - Unshielded twisted pair. A type of wiring used to connect systems in a business or home to a telephone line. V - Volt(s). VAC - Volt(s) alternating current. VDC - Volt(s) direct current. VGA - Video graphics array. VGA
  • Dell PowerVault MD3000i | Hardware Owner's Manual - Page 101
    installed on the physical disk. Windows Powered - A Windows operating system designed for use on NAS systems. For NAS systems, the Windows Powered operating system is dedicated to file service for network clients. Windows Server 2003 - A set of Microsoft software technologies that enable software
  • Dell PowerVault MD3000i | Hardware Owner's Manual - Page 102
    102 Glossary
  • Dell PowerVault MD3000i | Hardware Owner's Manual - Page 103
    connection troubleshooting, 77 enclosure management module, 18 external connections troubleshooting, 72 F firmware, 52 front bezel indicators, 14 removing and replacing, 55 front-panel indicators LED indicators, 15 H hard controller failure, 78 L lockdown conditions, 78 M MD Storage Manager, 11
  • Dell PowerVault MD3000i | Hardware Owner's Manual - Page 104
    supply features, 24 indicators, 26 installing/removing, 64 troubleshooting, 73 R RAID controller module conditions, 79 failover modes, 51 indicators, 78 installing and removing, 60 replacing/removing, 50 redundancy consistency check, 36 S safety, 71 segment size migration, 37 storage management
  • Dell PowerVault MD3000i | Hardware Owner's Manual - Page 105
    V virtual disk about, 27 initializing, 35 migration, 40 recovery, 48 W warranty, 11 Index 105
  • Dell PowerVault MD3000i | Hardware Owner's Manual - Page 106
    106 Index
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Dell™ PowerVault™
MD3000i RAID Enclosure
Hardware Owner’s Manual