Dell EqualLogic PS4210 Hardware Owner's Manual
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Dell EqualLogic PS4210 Hardware Owner's Manual

Storage arrays
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Dell EqualLogic PS4210 Storage Arrays
Hardware Owner's Manual
Version 1.0
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Summary of Contents for Dell EqualLogic PS4210

  • Page 1 Dell EqualLogic PS4210 Storage Arrays Hardware Owner's Manual Version 1.0...
  • Page 2 Dell™ and EqualLogic® are trademarks of Dell Inc. All trademarks and registered trademarks mentioned herein are the property of their respective owners. Information in this document is subject to change without notice. Reproduction of this material in any manner whatsoever without the written permission of Dell is strictly forbidden. Published: November 2014...

  • Page 3: Table Of Contents

    Table of Contents Preface 1 Basic Storage Array Information About the PS4210 Array Recommended Tools Protecting Hardware Back-Panel Features and Indicators Shutting Down and Restarting an Array 2 Maintaining Drives About Drive Types Identifying Failed Drives Interpreting Drive LEDs Array Behavior When a Drive Fails Drive Handling Requirements Drive Installation Guidelines and Restrictions 3 Maintaining Control Modules...
  • Page 4 Table of Contents...

  • Page 5: Preface

    To contact Dell EqualLogic Technical Support by phone, if you are located in the United States, call 800-945- 3355. For a listing of International Dell EqualLogic support numbers, visit dell.com/support/home. From this website, select your country from the drop-down list in the upper-left corner of the screen.
  • Page 6 Preface Online Services You can learn about Dell products and services by visiting dell.com (or the URL specified in any Dell product information). Warranty Information The PS4210 array warranty is included in the shipping box. For information about registering a warranty, visit onlineregister.com/dell.

  • Page 7: Basic Storage Array Information

    About the PS4210 Array The PS4210 is a PS4x10 10GbE class EqualLogic® PS Series array that continues the focus by Dell™ on industry-standard features and capabilities for the midrange iSCSI SAN market. PS4210 Features The PS4210 array is available in a 2U chassis with up to 24 2.5-inch drives, or 12 3.5-inch drives.
  • Page 8 PS4210 Hardware Owner's Manual 1 Basic Storage Array Information 2. Fit the band tightly around your wrist. 3. Connect the band to ground. You can either plug the banana connector into a matching grounded receptacle, or attach it to the matching alligator clip and connect the clip to a grounded device. Examples of an appropriate ground would be an ESD mat or the metal frame of a grounded piece of equipment.
  • Page 9 PS4210 Hardware Owner's Manual 1 Basic Storage Array Information Front-Panel Features and Indicators The front of a PS4210, without the bezel, is shown in Figure Table 1 describes the front-panel features. Figure 3: Front-Panel Features and Indicators (3.5-inch Drives) Figure 4: Front Panel Features and Indicators (2.5-inch Drives) Table 1: Front-Panel Feature Descriptions Item Indicator Icon...

  • Page 10: Back-Panel Features And Indicators

    A PS Series array includes redundant, hot-swappable drives, power supplies, and control modules (in a dual control module array). You can remove a redundant component without affecting operation if a functioning component is available. Otherwise, Dell recommends that you cleanly shut down the array and turn off power before removing a component.
  • Page 11 Password: Welcome to Group Manager Copyright 2001-2014 Dell Inc. group1> shutdown If you are using a serial connection to shut down an array, it is safe to turn off power when the “press any key” message appears. (Pressing any key will restart both control modules.) If you are using a network connection, the session will be disconnected before the array is fully shut down.
  • Page 12 PS4210 Hardware Owner's Manual 1 Basic Storage Array Information...

  • Page 13: Maintaining Drives

    Dell uses specially qualified and tested hard drives for its EqualLogic storage systems, and manages hard drive quality and firmware only for those drives. As a result, only Dell-provided hard drives are supported by PS Series arrays. Attempts to use other, unapproved hard drives in the PS4210 array will not be successful.

  • Page 14: Array Behavior When A Drive Fails

    Off: No power to drive Array Behavior When a Drive Fails In firmware version 5.2.5 and later, Dell implemented a copy-to-spare operation to replace failing drives. This operation can, in many cases, improve the performance of the drive replacement process by avoiding a full RAID rebuild and as a result can provide better reliability.

  • Page 15: Drive Handling Requirements

    PS4210 Hardware Owner's Manual 2 Maintaining Drives If a Spare Drive Is Not Available If a spare drive is not available, the RAID set will become degraded and performance might be impaired. However, a RAID 6 set can survive two simultaneous drive failures. If a spare drive is not available and the failed drive is in a RAID set that is already degraded, data might be lost and must be recovered from a backup.
  • Page 16 PS4210 Hardware Owner's Manual 2 Maintaining Drives For example, when you install a drive, the timer starts. If you install another drive before 2 minutes have elapsed, the timer is restarted. If no other drives are installed, the drive is configured after a delay of 2 min- utes.
  • Page 17 PS4210 Hardware Owner's Manual 2 Maintaining Drives Installing a 2.5-inch Drive The 2.5-inch drives are installed vertically, with the drive release latch on the top and the drive label on the bottom. 1. Wear electrostatic protection when handling a drive. See Protecting Hardware on page 2.
  • Page 18 PS4210 Hardware Owner's Manual 2 Maintaining Drives Verify that the new drive is operational by examining the LEDs on the front panel, as described in Interpreting Drive LEDs on page 7. In addition, examine the GUI Member Disks window and the CLI member select show command output.
  • Page 19 PS4210 Hardware Owner's Manual 2 Maintaining Drives Installing a 3.5-inch Drive The 3.5-inch drives are installed horizontally, with the drive release latch to the left and the drive label to the right. 1. Wear electrostatic protection when handling a drive. See Protecting Hardware on page 2.
  • Page 20 PS4210 Hardware Owner's Manual 2 Maintaining Drives Verify that the new drive is operational by examining the LEDs on the front panel, as described in Interpreting Drive LEDs on page 7. In addition, examine the GUI Member Disks window and the CLI member select show command output.

  • Page 21: Maintaining Control Modules

    3 Maintaining Control Modules Different PS Series array models contain different control module types. The combination of chassis type, control module pair, and drives determines the PS Series array model number. The control modules in a PS Series array contain the PS Series firmware, which provides the Group Manager GUI, the command line interface, and all the array and storage management functions and features.
  • Page 22 PS4210 Hardware Owner's Manual 3 Maintaining Control Modules Only one control module is active (providing disk access and serving network traffic) at one time. The secondary (redundant) control module mirrors cache data from the active control module. If the active control module fails, all functions of the primary controller transfer to the secondary.
  • Page 23 PS4210 Hardware Owner's Manual 3 Maintaining Control Modules • The Ethernet ports and the Management port each have LEDs that indicate the port's status and activity. See Table • Below the release latch is a column of three LEDs that indicate the status of the entire control module. See Table Figure 15: Control Module LEDs Table 6: Ethernet and Management Port LED Descriptions...
  • Page 24 PS4210 Hardware Owner's Manual 3 Maintaining Control Modules Table 7: Control Module Status LED Descriptions LED Name State Description No power. On (steady Power/OK. green) Normal operation or no power. Array is starting up, in error condition, in Standby mode, or returning from Standby Steady red mode.
  • Page 25 PS4210 Hardware Owner's Manual 3 Maintaining Control Modules If a cable is connected to a network port on the newly active control module, network I/O can switch to its network interface. Depending on circumstances, network I/O might instead continue through the previously active control module.

  • Page 26: Replacing A Control Module

    PS4210 Hardware Owner's Manual 3 Maintaining Control Modules Figure 16: Standby Button Location Enabling the Standby Feature To use the standby button, a group administrator must enable the feature in the Group Manager GUI or CLI. Enabling the use of the button applies groupwide; that is, it allows you to press the button to shut down any member (array) that has the standby button (PS4100, PS4110, PS4210, PS6100, PS6110, and PS6210 array models).
  • Page 27 PS4210 Hardware Owner's Manual 3 Maintaining Control Modules You will also need to temporarily remove a control module when you want to replace its microSD card. Refer to Replacing the MicroSD Card on page 24 for information about replacing the microSD card. You can partially or completely remove a control module without shutting down the array if the remaining control module has at least one connected and functioning network interface.
  • Page 28 PS4210 Hardware Owner's Manual 3 Maintaining Control Modules 2. Remove and swap the battery from the existing control module to the replacement control module, as described in Battery Replacement on page 3. Use the command to make the active control module secondary. restart 4.
  • Page 29 PS4210 Hardware Owner's Manual 3 Maintaining Control Modules Do not operate an array for an extended period with an empty control module slot. Return the failed control module in the packaging in which the replacement module was shipped. Contact your PS Series support provider for information about returning hardware.

  • Page 30: Replacing The Microsd Card

    PS4210 Hardware Owner's Manual 3 Maintaining Control Modules 6. If the array was shut down, turn on power to the array. 7. Make sure the control module is operational. See Interpreting Control Module LEDs on page The Type 19 control module contains an integral battery assembly used in the cache-to-flash feature of the control module.
  • Page 31 PS4210 Hardware Owner's Manual 3 Maintaining Control Modules 1. Firmly push the card into its housing to release the spring mechanism (callout 2 in Figure 20). The microSD card is partially ejected from the housing. 2. Gently pull the card straight out of the housing (callout 3 in Figure 20).

  • Page 32: Battery Replacement

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with your system.

  • Page 33: Shipping Requirements

    PS4210 Hardware Owner's Manual 3 Maintaining Control Modules Shipping Requirements If you plan to move a previously installed array geographically, for safety reasons, discharge the battery to a lower charge level. To discharge the battery, shut down the array using the command.
  • Page 34 Set the screw aside before you remove the cover; otherwise, the screw might fall inside the control module. If this occurs, you might have to return the control module to Dell for servicing. 4. Using the screw tab as a handle, swing the battery cover up and to the left and lay it upside down on the...

  • Page 35: Advanced Networking Options

    The manner in which to dispose of rechargeable batteries varies by country. Make sure that you dispose of your old battery in a way that conforms to your country's regulations. Alternately, you can return the old battery back to Dell for proper disposal. See Shipping Requirements on page...
  • Page 36 PS4210 Hardware Owner's Manual 3 Maintaining Control Modules Software Steps See the Dell EqualLogic Group Manager Administrator's Manual for the procedure to configure the management network in the Group Manager GUI.

  • Page 37: Maintaining Power Supply And Cooling Modules

    4 Maintaining Power Supply and Cooling Modules The array can support two hot-swappable power supply and cooling modules. The array is capable of operating with one power supply cooling module temporarily, but both power supply cooling modules are required to maintain long-term cooling and reliability of the array. About Power Supplies The PS Series array receives power from two power supplies (PSUs).
  • Page 38 • The power supply is not connected to AC power. • A fault condition is occurring (item 2). For a list of warning or critical level faults, see the Dell EqualLogic Group Manager Administrator's Manual. ON—Fault detected. Fault Amber OFF—OK.
  • Page 39 PS4210 Hardware Owner's Manual 4 Maintaining Power Supply and Cooling Modules The module is heavy. Support it with two hands. Figure 27: Removing a Power Supply and Cooling Module Installing a Power Supply and Cooling Module To install a power supply and cooling module: 1.
  • Page 40 PS4210 Hardware Owner's Manual 4 Maintaining Power Supply and Cooling Modules Figure 28: Inserting a Power Supply and Cooling Module 3. Ensure the power switch is in the OFF position. 4. Connect the power cable to the power supply and cooling module and plug the cable into a power outlet. The AC LED lights up when the power cable is connected, even if the switches on the power supply are off.

  • Page 41: Troubleshooting Your Array

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
  • Page 42 • Empty drive bays (no drive or drive blank) or empty controller slot. • Ambient temperature is too high. See the Technical Specifications for the array in the Dell EqualLogic PS4210 Series Array Installation and Setup Guide. • External airflow is obstructed by cables or other items in the rack.

  • Page 43: Index

    Index electrostatic discharge electrostatic wrist strap array cooling fans firmware failover LEDs 7, control module power supplies failure indications shutdown procedure control modules disks fans removing PSU battery firmware bezel identifying version installing requirements removing front panel features control modules batteries identifying the firmware version checking proper installation...
  • Page 44 Index: power indicators – vertical failover power indicators power supplies removing PS Series array protecting from discharge recommended tools removing 3.5-inch drive 10, requirements control modules cooling disks firmware power safety shutting down an array standby button status control modules troubleshooting connections cooling problems...

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