Violin Memory 7300 User manual
Violin
MEMORY
Document Number: 535-0158-00 Rev 03
August 2015
7300 Flash Storage Platform
Service Guide
ii 7300 Flash Storage Platform Service Guide 535-0158-00 Rev 03
LEGAL NOTICE
Copyright © 2010-2015 Violin Memory, Inc. All rights reserved.
Violin, Violin Memory and the Violin logo are registered trademarks of Violin. A complete list of Violin’s
trademarks and registered trademarks is available at www.violin-memory.com/company/trademarks/
All other brands, product names, company names, trademarks, and service marks are the properties of their
respective owners.
Violin Memory, Inc.
4555 Great America Parkway
Santa Clara, CA 95054
USA
535-0158-00 Rev 03 7300 Flash Storage Platform Service Guide iii
Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Replacing Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Guidelines for Servicing the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Handling of Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Electrostatic Discharge Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Verification of Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Monitoring System Status and Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Viewing System LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Using Violin Symphony . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Using the Command Line Interface (CLI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Preparing the System for a Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Removing and Replacing the Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Replacing a Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Determining if a Fan Requires Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Replacing a Memory Gateway (MG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Automatic and Manual Backups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Determining if a Memory Gateway Requires Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Replacing the Memory Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Storing the Replacement Memory Gateway Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Recovering the Replacement Memory Gateway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Replacing a Host Bus Adapter (HBA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Determining if a HBA Requires Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Before Removing the HBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Removing the HBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Replacing the HBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Adding the Replacement HBA Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Replacing a SD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Replacing an Array Controller Module (ACM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Determining if a ACM Requires Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Troubleshooting a ACM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Replacing a ACM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
ACM Post-replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Synchronizing ACM Software Versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Power on the Memory Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Replacing a VIMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Determining if a VIMM Requires Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Removing VIMM Holddowns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Replacing a vRAID Controller Module (VCM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Determining if a VCM Requires Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Replacing a Power Controller Module (PCM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Determining if a PCM Requires Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Replacing a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Determining if a Power Supply Requires Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
535-0158-00 Rev 03 7300 Flash Storage Platform Service Guide 1
Preface
This guide describes how to safely replace the system modules in the 7300 Flash
Storage Platform.
This preface outlines the organization of this book, describes document
conventions, and provides information about additional resources.
•Intended Audience on page 1
•Security on page 2
•Document Conventions on page 2
•Reference Documents on page 3
•Contacting Violin Memory on page 4
Intended Audience
This guide is intended for Violin Memory qualified service technicians and systems
administrators. Violin Memory assumes that you are experienced in installing and
servicing high-performance storage systems. Contact Violin Memory for training
and certification.
Contact Violin Memory Customer Support for any assistance with servicing this
system. See Contacting Violin Memory on page 4 for contact information.
27300 Flash Storage Platform Service Guide 535-0158-00 Rev 03
What’s New in This Version
You can now upgrade a replacement Memory Gateway (MG) with the same Concerto software
version as the healthy MG by downloading the software from the Violin Customer Support portal
and then running an upgrade script. See Replacing a Memory Gateway (MG) on page 17 for more
information.
Security
Violin Memory, Inc. cannot be responsible for unauthorized use of equipment and will not make
allowance or credit for unauthorized use or access.
Document Conventions
Safety Icons
The table below summarizes warning, caution, and note icons used in this document and includes
sample text.
Safety Icons
Icon Sample Text
WARNING! WARNING! Only authorized, qualified, and trained
personnel should attempt to work on this equipment.
Caution: Caution: Follow the listed safety precautions when
working on the 7300 Flash Storage Platform.
Note: Note: Read through this entire chapter and plan your
installation according to your location before installing
the equipment. The following procedures and the order
in which they appear are general installation guidelines
only.
535-0158-00 Rev 03 7300 Flash Storage Platform Service Guide 3
Typographical Conventions
The following typographic conventions are used in this guide:
Reference Documents
In addition to this guide, the following Violin Memory documents comprise the documentation suite
that will assist you with setting up, using and servicing the 7300 Flash Storage Platform. These
guides are available for download from the Violin Memory Support site at http://www.violin-
memory.com/support/
Format Meaning
Bold User Interface text.
Italic Provides emphasis and identifies variables and
document titles.
Courier Command names, examples, and output.
Courier bold Input you must type exactly as shown.
<Courier italic> Information for which you must supply a value.
[] Optional command parameters are enclosed within
square brackets.
|Separates a set of command choices from which only
one may be chosen.
{} Required command parameters that must be specified
are enclosed within curly brackets.
Typographical Conventions
This document... Provides this information...
Release Notes This document describes the new features, resolved
issues, known limitations and software upgrade
instructions for the current release.
7300 Flash Storage Platform Installation Guide This guide provides instructions for installing the
7300 Flash Storage Platform in an equipment rack
and completing the system setup and configuration.
7300 Flash Storage Platform User’s Guide This guide provides instructions for managing,
monitoring, and maintaining a 7300 Flash Storage
Platform.
Violin Symphony (online help) If the Violin Symphony management tool is installed
on your system, you can also use Violin Symphony
to monitor Violin arrays from a Web browser. See
http://www.violin-memory.com/ for more information.
Reference Documents
47300 Flash Storage Platform Service Guide 535-0158-00 Rev 03
Contacting Violin Memory
To obtain additional information or technical support for Violin Memory products, or to obtain an
RMA number and replacement product, contact us at:
•Phone: 1-855-VIOLIN-5 (1-855-846-5465)
•International: +1 650-396-1500 Extension 3
•Web site: http://www.violin-memory.com/support
•E-mail: [email protected]
When contacting Violin Memory Customer Support, please have the following information available:
•Model and serial number of the system for which you are requesting support
•Software version
•A brief description of the problem
•Output of “show alarms” and “vdiag” commands
Slide Rail Installation Guide This guide provides instructions for installing the
7300 Flash Storage Platform slide rails in an
equipment rack.
Cable Management Installation Guide This guide provides instructions for installing the
cable management arm on a array.
This document... Provides this information...
Reference Documents
535-0158-00 Rev 03 7300 Flash Storage Platform Service Guide 5
Replacing Modules
This section describes how to safely service all system modules in the 7300 Flash
Storage Platform in the following sections:
•Guidelines for Servicing the System on page 6
•Monitoring System Status and Modules on page 9
•Removing and Replacing the Cover on page 12
•Replacing a Fan on page 14
•Replacing a Memory Gateway (MG) on page 17
•Replacing a Host Bus Adapter (HBA) on page 33
•Replacing an Array Controller Module (ACM) on page 44
•Replacing a VIMM on page 55
•Replacing a VIMM on page 55
•Removing VIMM Holddowns on page 60
•Replacing a vRAID Controller Module (VCM) on page 62
•Replacing a Power Controller Module (PCM) on page 69
•Replacing a Power Supply on page 73
67300 Flash Storage Platform Service Guide 535-0158-00 Rev 03
Guidelines for Servicing the System
Follow these guidelines when replacing the modules in a 7300 Flash Storage Platform. All system
modules can be replaced while the system is running.
WARNING! Only authorized, qualified, and trained personnel should attempt to service or
maintain this equipment.
Caution: Read this guideline section before proceeding with any of the service procedures.
Safety Precautions
The following servicing guidelines must be followed when performing maintenance on the 7300
Flash Storage Platform.
•Use caution when replacing the fans. When the system is powered on, the fans are moving
and may cause damage to items that come in contact with the moving parts.
•Use caution when removing and replacing a system module. Contact MUST BE AVOIDED
with other modules and system components within the chassis. To avoid damage to other
modules or components, modules must remain vertical throughout the removal and
replacement process. Failure to observe these precautions creates the potential risk of
damaging the system.
•When using metal tools such as screwdrivers, exercise caution to ensure that they do not
come in contact with any part of the system other than to remove the necessary screws.
Failure to observe these precautions creates the potential risk of creating a short circuit within
the system.
•To avoid any potential damage to the internal modules, only remove the cover to replace a
failed module. Loose metal objects from other sources may fall into the system causing
damage.
•The system is designed to remain at an operational temperature with the top cover removed
while modules are replaced. To keep the system at the appropriate temperature, the fan speed
will increase to high within 30 seconds of removing the cover.
•Remove metal objects, including rings, watches and necklaces before servicing the system.
•Remove loose clothing.
•Hearing and eye protection is advised.
Handling of Replacement Parts
•Keep replacement parts in their ESD bags until ready for installation.
•Move packaging away from the system to avoid contamination.
•Do not touch the gold “fingers” on replacement modules. They can be easily smudged or
damaged if handled.
535-0158-00 Rev 03 7300 Flash Storage Platform Service Guide 7
Electrostatic Discharge Precautions
Follow these precautions to prevent ESD damage to the 7300 Flash Storage Platform:
•Wear ESD protection, such as a wrist or ankle strap that is properly grounded to avoid
damage from static electricity.
•Ensure the system is properly grounded, as described in “Grounding the Memory Array” in the
Violin 7300 Flash Storage Platform Installation Guide.
•Ensure that you are properly discharged before servicing the system.
Verification of Replacement Parts
The outside packaging of each replacement module is affixed with a label identifying the type of
replacement part, its part number, software version and serial number. Below is an example of the
label for a replacement VIMM.
Follow these inspection guidelines when replacing a module:
•Make sure that the replacement part received is the same model number and part number as
the one that you are replacing. Part numbers are also located on each module. The type of
part is included in the MODEL NUMBER at the top of the label. The following table lists
modules that are replaceable:
MODEL NUMBER and PART NUMBER
must match part being replaced.
87300 Flash Storage Platform Service Guide 535-0158-00 Rev 03
•The part number on the replacement module must match the part number on the failed
module. If the part numbers do not match, return the failed module to its location in the 7300
Flash Storage Platform. Replace the top cover. Contact Violin Memory Customer Support if
you received the wrong part. See Contacting Violin Memory on page 4.
•Note the software version (S/W VERSION) that is printed on the replacement module’s label.
The replacement module may be loaded with a previous version of software. Array Controller
Modules (ACMs) and Memory Gateways can be upgraded to newer versions of software when
it becomes available. All modules of the same type (both ACMs, both PCMs, both MGs, all
VCMs, etc.) must be running the same version of software. Replacement ACMs and VIMMs
are automatically upgraded to the same software version as the other module(s) of that type
during the boot up phase. Some modules require a manual software update. See the section
in this guide for the module that you are replacing for specific software upgrade procedures.
Replacement Module Model Number Part Number
VIMM VIMM-7300-1024 410-0210-00
Fan V-6000-FAN 410-0119-00
Memory Gateway (MG) V-7300-MG3 420-0100-00
Array Controller Module (ACM) V-7300-AC 410-0279-00
Power Controller Module (PCM) V-7300-PC 410-0270-00
vRAID Controller Module (VCM) V-7300-VC 620-0181-00
Power Supply V-6000-PWR 200-0026-00
Fibre Channel Card V-7300-NI-16FC 410-0308-00
iSCSI Adapter Card V-6000-NI-10GEx2 410-0158-00
SD Card N/A S-240-0061-00
535-0158-00 Rev 03 7300 Flash Storage Platform Service Guide 9
Monitoring System Status and Modules
There are several ways to discover system modules that require attention or replacement and to
verify that a module is functioning properly once it has been replaced. All are briefly described
below.
•Viewing System LEDs on page 9
•Using Violin Symphony on page 10
•Using the Command Line Interface (CLI) on page 11
Viewing System LEDs
The System Status and VIMM Status LEDs alert you of system and VIMM-specific alarms
respectively. Service LEDs indicate which modules are faulty and enable you to replace the
modules with no downtime.
Front LEDs
Six LEDs (AC-A, AC-B, System Status, VIMM Status, and Interface Status) are displayed on the
front of the chassis.
Figure 2.1 Front Status LEDs
LED LED State Meaning
AC-A Green (solid) Array Controller A is the master controller.
AC-B Green (solid) Array Controller B is the master controller.
System Status Green (solid) The following system components are operating normally:
VIMM, internal Memory Gateway, HBA, vRAID Controller
Module, Array Controller Module, Fan, Front Panel Module,
Power Controller Module.
Amber (solid) An alarm has been raised on at least one of the following
system components: VIMM, internal Memory Gateway, HBA,
vRAID Controller Module, Array Controller Module, Fan,
Front Panel Module, Power Controller Module.
A system component is not powered or not present.
Grey (solid) The system is off or starting up.
Table 1 Front LED Descriptions
AC-A AC-B Interface Status
ID LED
Button
System Status VIMM Status
10 7300 Flash Storage Platform Service Guide 535-0158-00 Rev 03
Active system alarms may be viewed by running the show alarms command. See the 7300 Flash
Storage Platform User’s Guide for more information on alarms.
Using Violin Symphony
Violin Symphony provides enterprise-scale management and monitoring for multiple Violin arrays
using a Web browser. The customizable Symphony dashboard displays at-a-glance metrics that
allow you to quickly spot problems and devise effective solutions.
If Violin Symphony is installed on an accompanying server, it can be used to monitor 7300 Flash
Storage Platforms from a Web browser. See the online help within the Symphony application for
instructions on using Violin Symphony.
Contact your sales representative or see http://www.violin-memory.com/ for more information.
VIMM Status Green (solid) All VIMMs are functioning correctly.
Amber (solid) An alarm has been raised for at least one VIMM.
A VIMM is not powered or not present.
Interface Status Green (solid) This LED is not currently functional.
ID Blue (solid) Identifies the 7300 Flash Storage Platform in a rack when the
ID button is pressed or when enabled from the Web
interface, or from the CLI using the locate command.
LED LED State Meaning
Table 1 Front LED Descriptions (Continued)
535-0158-00 Rev 03 7300 Flash Storage Platform Service Guide 11
Using the Command Line Interface (CLI)
You can use the Aria (ACM) CLI on the 7300 Flash Storage Platform to check the status of system
modules, as well as other functions. Depending on the user’s current access mode, a subset of
commands are available for configuring, managing and viewing information about the 7300 Flash
Storage Platform.
Establishing a Connection to the Array
All of the replacement procedures in this guide require CLI access. Use the serial console cable to
connect a computer to the 7300 Flash Storage Platform for retrieval of system status and to perform
configuration operations using the CLI.
To connect the console cable to the 7300 Flash Storage Platform and to a computer:
1. Connect one end of the console cable to serial console port A on the rear of the 7300 Flash
Storage Platform.
2. Connect the other end of the cable to a computer.
3. When you are ready to connect to the CLI, start a SSH application, and then use the following
serial console settings:
— Speed (baud): 115200
— Data bits: 8
— Stop bits: 1
— Parity: None
4. Log in to the Master ACM as “admin”. The Master ACM is set up during initial configuration of
the 7300 Flash Storage Platform. Enter the system host name or the ACM management IP
address to ensure a direct connection.
Figure 3 Console Ports
Console Port A
Console Port B
12 7300 Flash Storage Platform Service Guide 535-0158-00 Rev 03
Alarms and Diagnostic Commands
7300 Flash Storage Platform tools are available to diagnose system and module-specific alarms,
including those requiring service. It may also be that an alarm can be resolved without having to
replace a module.
From the CLI’s “enable” mode:
•Use the “show alarms” command to view active system alarms on the 7300 Flash Storage
Platform.
•Use the “vdiag” command to display array diagnostic information. This command must be
run from the Master ACM.
See the 7300 Flash Storage Platform User’s Guide for more information about alarms and
diagnostic commands.
Preparing the System for a Replacement Procedure
Follow these important steps before beginning a replacement procedure:
1. Find and schedule a suitable time for the replacement procedure. Ensure that the interruption
will not impact the use of or access to data stored on the 7300 Flash Storage Platform.
2. Using the CLI, ensure that there are no temperature alarms by typing the “show alarms”
command. Clear any temperature alarms before proceeding. See the 7300 Flash Storage
Platform User’s Guide for more information about alarms.
Removing and Replacing the Cover
The top cover must be removed to replace all of the internal system modules. Removing the top
cover is not required to replace a power supply.
Remove the cover only to replace a failed module and then replace the cover as soon as you have
finished replacing the module.
Before You Begin
Once you have determined that a module has failed and requires replacement, prepare the 7300
Flash Storage Platform in the equipment rack that contains the failed module by completing the
following steps.
1. Log in to the 7300 Flash Storage Platform.
2. Use the CLI to discover the host name or ACM Management IP address of the system.
3. Activate the blue ID LED button on the front and back of the 7300 Flash Storage Platform
chassis.
a. Type enable at the command prompt.
b. Type locate at the command prompt.
535-0158-00 Rev 03 7300 Flash Storage Platform Service Guide 13
This turns on the blue ID on the array for easy location in the equipment rack. Press the ID LED
button on the front of the array when you want to turn it off.
Note: The system is designed to remain at an operational temperature with the top cover
removed while modules are replaced. To keep the system at the appropriate temperature, the fan
speed will increase to high within 30 seconds of removing the cover.
1. If the 7300 Flash Storage Platform is secured to the equipment rack, remove the screws that
attach the front bezel to the equipment rack. Set the screws aside for when the replacement is
completed.
Note: It is recommended that two people participate in sliding the 7300 Flash Storage Platform
out of the equipment rack: one in front to pull the system and one in back to ensure that the rear
cables remain connected and are not tangled with other systems in the rack.
2. Slide the 7300 Flash Storage Platform fully out of the equipment rack until the rails lock into
position.
3. Press and hold the release button on the top right of the cover while sliding the cover toward
the rear of the chassis (approximately 3/4 inch).
WARNING! To avoid damaging the internal system components, be sure to lift the cover
straight up so that the cover does not touch any of the modules.
4. Lift the cover straight up and then place the cover away from the system. Do not leave the
cover resting on the chassis.
Figure 4 Removing the Cover
Release Button
14 7300 Flash Storage Platform Service Guide 535-0158-00 Rev 03
To replace the cover:
WARNING! To avoid damaging the system components, be sure to orient the front and back of
the cover correctly. The cover is positioned correctly when the release button is on the right of the
chassis and the outer edges are aligned over both sides of the chassis.
1. Rest the cover on the system so that the front of the cover is slightly back from the front of the
chassis, and the sides of the cover are placed over both sides of the chassis.
2. Place a hand over the back edge of the cover and then slide the cover toward the front of the
chassis until the cover clicks into place.
3. Depress the metal locking latches on each slide rail and then slide the FSP back into the
equipment rack.
4. Secure the system to the front of the equipment rack with front bezel screws (if used).
Replacing a Fan
The six available fans provide forced airflow through the system. The fans can be replaced while
the 7300 Flash Storage Platform is powered on.
All six fans run at full speed when the 7300 Flash Storage Platform is first powered on and run at
less than full speed when all system modules are operating normally. Built-in temperature sensors
automatically lower the fan speed if lower temperature conditions are detected.
The fans switch to full speed in the event of overheating conditions, high ambient temperature and
other fault conditions, including failure of any VIMM, vRAID Controller Module (VCM) or fan itself.
Removal of a fan appears like a fault condition and all fans switch to full speed until the removed
fan is replaced.
Determining if a Fan Requires Replacement
The System Status LED on the front of the 7300 Flash Storage Platform is amber when an alarm
has been raised on at least one of the following modules: VIMM, MG, HBA, VCM, ACM, PCM, Fan,
Power Supply.
To show more detail about alarms:
1. Log in to the CLI from the host computer and, at the system prompt, type enable and then
configure terminal.
2. Type the following at the command prompt:
A fan requiring replacement will show a “failed” status.
See Monitoring System Status and Modules on page 9 for information about using the available
tools to identify modules requiring replacement.
violin-acma [violin: master] (config) # show alarms
535-0158-00 Rev 03 7300 Flash Storage Platform Service Guide 15
Follow these steps if you have determined that a fan requires replacement.
To replace a fan:
WARNING! Before removing a module, check the status of its redundant module(s) using the
“vdiag” command. If a redundant module has also failed, removing the module intended for
replacement may bring the 7300 Flash Storage Platform completely offline.
1. Review Preparing the System for a Replacement Procedure on page 12 before continuing.
2. Remove the top cover. See Removing and Replacing the Cover on page 12.
WARNING! The blades on a fan may still be spinning even if the fan has failed. This is caused
by the air flow from an adjacent fan. Use caution when removing a failed fan and only lift the module
using the handle.
3. Pull the fan module handle back to disengage the handle from the fan module.
Figure 5 Fan Locations and Layout
Figure 6 Fan Module Handle
A0
A1
B0
B1
C0
C1
16 7300 Flash Storage Platform Service Guide 535-0158-00 Rev 03
4. Pull the handle straight up to remove the fan module from the system.
5. IMPORTANT: Compare the part number on the failed module to the part number on the
replacement module. See Verification of Replacement Parts on page 7 for more information
about part numbers. The part numbers must match.
6. Open the handle on the replacement fan module.
7. With the handle open, place the fan module in the empty fan slot and push it into the chassis
until the connector on the fan is securely seated in the chassis connector. Make sure that the
handle clicks into place. The handle has a pin that fits in the forward slot. You may need to
reposition the handle slightly so that the fan handle fits correctly.
8. Replace the cover. See Removing and Replacing the Cover on page 12.
9. Ensure that the System Status LED is no longer amber, indicating that the alarm is cleared.
10.Verify that the new module is functioning properly and that the alarm is cleared. See
Monitoring System Status and Modules on page 9.
Figure 7 Fan Module Removal
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