Dell PS-M4110 User manual

Dell EqualLogic PS-M4110 Blade Storage Arrays

Hardware Owner's Manual

Version 1.0

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 in any manner whatsoever without the written permission of Dell is strictly forbidden.

Published: July 2012

Part Number: 110-6106-EN-R1

Table of Contents
Preface vi
1  Getting Started 1
About the PS-M4110 Array 1
Front Panel Features and Indicators 2
Shutting Down and Restarting the Array 4
Protecting Hardware 6
Array Networking Considerations 6
Networking Information Resources 6
Network Requirements 7
Network Recommendations 9
Optional Considerations 10
2  Handling the Array 11
About Handling the Array 11
Opening the Array Drawer 12
Closing the Array Drawer 14
Removing the Array from the M1000e Chassis 15
Removing the Blade Drawer From the Upper Chassis 16
Removing the Array Drawer from a Lower Slot 18
Inserting the Array into the M1000e Chassis 19
Install the Array in the M1000e 20
If installing the array into a top slot in the M1000e chassis 21
If installing the array into a bottom slot in the M1000e chassis 21
Verify Proper Installation 24
Releasing the Array Inner Drawer Safety Latch 25
3  Maintaining Drives 27
About Drives 27
About Mixed-Drive Arrays (Rotational and Solid State) 27
Identifying Failed Drives 27
Interpreting Drive LEDs 28
Array Behavior When a Drive Fails 28
Drive Handling Requirements 29
Replacing Drives 29
Drive Installation Guidelines and Restrictions 29
Removing a Drive 30
Installing a Drive 32
4  Maintaining Control Modules 35
Control Module Description 36
About Control Module Configurations 36
Interpreting Control Module LEDs 37
Identifying Control Module Failures 37
Understanding Failover Behavior 38
Maintaining Control Module Firmware 38
Control Module Handling Requirements 39
Replacing a Control Module 39
Control Module Replacement Procedures 40
Removing a Control Module 41
Installing a Control Module 44
Replacing the microSD Card 46
microSD Card Replacement Procedure 46
Removing the microSD Card 47
iv

Inserting the microSD Card 48
5  Troubleshooting Your Array 49
Obtaining Technical Support and Customer Service 49
Express Service Tag Information 49
Obtaining Component Diagnostics 49
Troubleshooting Array Startup Failure 50
Troubleshooting Loss of Communication 50
Troubleshooting Array Connections 50
Troubleshooting External Connections 50
Troubleshooting Control Modules 51
Troubleshooting Array Drives 51
Index 53
v
PS-M4110 Hardware Owner's Manual Table of Contents 

Preface

Dell EqualLogic PS Series arrays optimize resources by automating capacity, performance, and network load

balancing. Additionally, PS Series arrays offer all-inclusive array management software and firmware updates.

Dell EqualLogic FS Series appliances, combined with PS Series arrays, offer a high performance, high

availability, scalable NAS solution.

Audience

The information in this guide is intended for hardware administrators. Administrators are not required to have

extensive network or storage system experience, however, it may be helpful to understand:

• Basic networking concepts

• Current network environment

• User disk storage requirements

• RAID configurations

• Disk storage management

Note: This manual provides examples of using PS Series arrays in some common network configurations.

However, detailed information about setting up a network is beyond the scope of this manual. For related

networking information, visit support.dell.com. You can also contact your support provider as described in this

section in Preface on page vi.

Related Documentation

For detailed information about FS Series appliances, PS Series arrays, groups, volumes, array software, and host

software, log in to the Documentation page at the customer support site.

Dell Online Services

You can learn about Dell products and services with this procedure:

1. Visit http://www.dell.com or the URL specified in any Dell product information.

2. Use the locale menu or click on the link that specifies your country or region.

Dell EqualLogic Storage Solutions

To learn more about Dell EqualLogic products and new releases, visit the Dell EqualLogic Tech Center site:

http://delltechcenter.com/page/EqualLogic. Here you can also see articles, demos, online discussions, and more

details about the benefits of our product family.

Technical Support and Customer Service

Dell support service is available to answer your questions about PS Series SAN arrays and FS Series appliances.

Contacting Dell

If you are a customer in the United States or Canada in need of technical support,

call 1-800-945-3355. If you are outside of the United States or Canada, visit Dell EqualLogic Product Support.

If you have an Express Service Code, have it ready. The code helps the Dell automated support telephone

system direct your call more efficiently.

Warranty Information

The MODEL array warranty is included in the shipping box. For information about registering a warranty, visit

http://support.dell.com/support/topics/global.aspx/support/warranty.

Notes, Cautions, and Warnings Symbols

A NOTE symbol indicates important information that helps you make better use of your hardware or

software.

A CAUTION symbol indicates potential damage to hardware or loss of data if instructions are not

followed.

A WARNING symbol indicates a potential for property damage, personal injury, or death.

vii

Dell EqualLogic PS-M4110 Hardware Owner's Manual Preface

1 Getting Started

This chapter includes information about the location and basic operation of the replaceable components in a

storage array, the tools and equipment you will need, protecting hardware from electrostatic discharge, and

power on/off operations.

About the PS-M4110 Array

The PS-M4110 is a double-wide, half-height blade storage array with one or two hot-swappable Type13

control modules and up to 14 drives.

The PS-M4110 blade storage array fits inside and operates only when installed in a Dell EqualLogic Pow-

erEdge M1000e Blade Enclosure. It receives power from, and makes all its network connections through

the PowerEdge M1000e Blade Enclosure.

A fully-populated Dell PowerEdge M1000e Blade Enclosure is shown in Figure 1.

Figure 1: M1000e Enclosure with PS-M4110 Blade Storage and Servers

Dell EqualLogic PS-M4110 Hardware Owner's Manual Chapter 1 Getting Started

This PowerEdge M1000e Blade Enclosure contains four PS-M4110 blade storage arrays, two single-wide

full-height blade servers, and four single-wide half-height blade servers.

Front Panel Features and Indicators

The front of a PS-M4110 blade storage array is shown in Figure 2.

• Table 1 describes the features of the front panel.

• Table 2 describes the drive LED indicators.

• Table 3 describes the warnings and critical conditions that are indicated by the Array Status LED.

Figure 2: Front Panel Features and Indicators

Table 1: Front Panel Feature Descriptions

Item Indicator Description

1 Drive Status LEDs Each drive slot is represented by a green element and an amber element on

the front panel. See Table 2 for details.

2 Array Status LED The array status LED has these states:

Item Indicator Description

• OFF—Array is in the OFF or Standby state.

• Flashing amber — Array warning condition. See Table 3.

• Steady amber — Array critical condition. See Table 3.

• Steady blue — Normal operating state.

• Flashing blue —System ID engaged.

3 Serial ports Enable you to connect a computer directly to the array.

• The serial port for control module 0 (CM0) is on the left.

• The serial port for control module 1 (CM1) is on the right.

The serial ports are set to 9600 baud, 8 data bits, 1 stop bit, no parity, and no

flow control.

4 Array handle release but-

tons (top and bottom)

Unlocks the array enclosure's handle and use the handle to remove the array

enclosure from the chassis.

5 Express Service Tag Pull this tag to see the unit's Dell Express Service Tag number. This number

is usually required if you need technical support.

Table 2: Drive LED Descriptions1

Green Element Amber Element Description

OFF OFF Drive slot is empty

ON OFF One of these statuses:

• drive is online

• drive is ready

• drive is a spare

• foreign drive

• drive is spun down for removal

• new drive is present but not yet configured

into the RAID set

Flashing OFF Drive slot identification at user's request.

OFF ON One of these statuses:

• drive has failed

• drive is unsupported

Table 3: Warning and Critical Conditions

Condition Level Possible Reasons

Warning • Non-critical hardware component failure

• Control module removed

• Cache syncing

• High or low temperature

1All timing values are +/- 25 msec.

Dell EqualLogic PS-M4110 Hardware Owner's Manual Front Panel Features and Indicators

Dell EqualLogic PS-M4110 Hardware Owner's Manual Chapter 1 Getting Started

Condition Level Possible Reasons

• RAID set fault

• RAID set lost blocks

• Internal communication failure

• No progress with replication

• Spare drive too small

• Time of day clock battery low

• Incorrect physical RAM size

• More spare drives than expected

• Spare drive is of wrong type

• Solid-state drive added to RAID set

Critical • Critical hardware component failure

• High or low ambient temperature

• RAID set double fault

• RAID lost cache

• RAID set lost-block table full

• RAID orphan cache

• Multiple RAID sets present

• Incompatible control module

• Enclosure management link failure

• Enclosure open too long

• Degraded parity

• C2F power module failure

• RAID set unresolved

• Fabric mismatch

• No communications with CMC

Shutting Down and Restarting the Array

You can shut down a PS Series array using the Group Manager GUI or the CLI over a telnet or serial

connection, but this does not turn off power to the array or the enclosure.

A PS Series array includes hot-swappable drives and control modules (in a dual redundant module array). You

can remove a faulty component without affecting operation if a functioning component is available. Otherwise, it

is recommended that you cleanly shut down the array and turn power OFF by partially or fully removing the

array before removing a component.

Note: Be aware that the power is still ON while the array is in the chassis.

Note: When an array is shut down, any volumes with data on the array are set offline until the array is restarted.

This may affect initiators that are connected to the volumes.

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