IBM Storwize V7000 Operating manual

IBM Storwize V7000
Troubleshooting, Recovery, and
Maintenance Guide
GC27-2291-05


Note
Before using this information and the product it supports, read the general information in “Notices” on page 161, the
information in the “Safety and environmental notices” on page iii, as well as the information in the IBM Environmental
Notices and User Guide , which is provided on a DVD.
This edition applies to IBM Storwize V7000 and to all subsequent releases and modifications until otherwise
indicated in new editions.
This edition replaces GC27-2291-04.
© Copyright IBM Corporation 2010, 2013.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Safety and environmental notices
Review the safety notices, environmental notices, and electronic emission notices
for IBM®Storwize®V7000 before you install and use the product.
Here are examples of a caution and a danger notice:
CAUTION:
A caution notice indicates the presence of a hazard that has the potential of
causing moderate or minor personal injury. (C001)
DANGER
A danger notice indicates the presence of a hazard that has the potential of
causing death or serious personal injury. (D002)
To find the translated text for a caution or danger notice:
1. Look for the identification number at the end of each caution notice or each
danger notice. In the preceeding examples, the numbers (C001) and (D002) are
the identification numbers.
2. Locate IBM Storwize V7000 Safety Notices with the user publications that were
provided with the Storwize V7000 hardware.
3. Find the matching identification number in the IBM Storwize V7000 Safety
Notices. Then review the topics concerning the safety notices to ensure that you
are in compliance.
4. Optionally, read the multilingual safety instructions on the Storwize V7000
website. Go to www.ibm.com/storage/support/storwize/v7000 and click the
documentation link.
Safety notices and labels
Review the safety notices and safety information labels before using this product.
To view a PDF file, you need Adobe Acrobat Reader. You can download it at no
charge from the Adobe website:
www.adobe.com/support/downloads/main.html
IBM Systems Safety Notices
This publication contains the safety notices for the IBM Systems products in
English and other languages. Anyone who plans, installs, operates, or services the
system must be familiar with and understand the safety notices. Read the related
safety notices before you begin work.
Note: The IBM Systems Safety Notices document is organized into two sections.
The danger and caution notices without labels are organized alphabetically by
language in the “Danger and caution notices by language” section. The danger and
caution notices that are accompanied with a label are organized by label reference
number in the “Labels” section.
© Copyright IBM Corp. 2010, 2013 iii

The following notices and statements are used in IBM documents. They are listed
in order of decreasing severity of potential hazards.
Danger notice definition
A special note that emphasize a situation that is potentially lethal or
extremely hazardous to people.
Caution notice definition
A special note that emphasize a situation that is potentially hazardous to
people because of some existing condition, or to a potentially dangerous
situation that might develop because of some unsafe practice.
Note: In addition to these notices, labels might be attached to the product to warn
of potential hazards.
Finding translated notices
Each safety notice contains an identification number. You can use this identification
number to check the safety notice in each language.
To find the translated text for a caution or danger notice:
1. In the product documentation, look for the identification number at the end of
each caution notice or each danger notice. In the following examples, the
numbers (D002) and (C001) are the identification numbers.
DANGER
A danger notice indicates the presence of a hazard that has the potential
of causing death or serious personal injury. (D002)
CAUTION:
A caution notice indicates the presence of a hazard that has the potential of
causing moderate or minor personal injury. (C001)
2. Open the IBM Systems Safety Notices.
3. Under the language, find the matching identification number. Review the topics
about the safety notices to ensure that you are in compliance.
Note: This product was designed, tested, and manufactured to comply with IEC
60950-1, and where required, to relevant national standards that are based on IEC
60950-1.
Caution notices for the Storwize V7000
Ensure that you understand the caution notices for Storwize V7000.
Use the reference numbers in parentheses at the end of each notice, such as (C003)
for example, to find the matching translated notice in IBM Storwize V7000 Safety
Notices.
CAUTION:
The battery contains lithium. To avoid possible explosion, do not burn or charge
the battery.
Do not: Throw or immerse into water, heat to more than 100°C (212°F), repair or
disassemble. (C003)
iv Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide

CAUTION:
Electrical current from power, telephone, and communication cables can be
hazardous. To avoid personal injury or equipment damage, disconnect the
attached power cords, telecommunication systems, networks, and modems before
you open the machine covers, unless instructed otherwise in the installation and
configuration procedures. (26)
CAUTION:
Use safe practices when lifting.
svc00146
18-32 kg (39.7-70.5 lbs) 32-55 kg (70.5-121.2 lbs) 55 kg ( 121.2 lbs)
(27)
CAUTION:
vDo not install a unit in a rack where the internal rack ambient temperatures
will exceed the manufacturer's recommended ambient temperature for all your
rack-mounted devices.
vDo not install a unit in a rack where the air flow is compromised. Ensure that
air flow is not blocked or reduced on any side, front, or back of a unit used
for air flow through the unit.
vConsideration should be given to the connection of the equipment to the
supply circuit so that overloading of the circuits does not compromise the
supply wiring or overcurrent protection. To provide the correct power
connection to a rack, refer to the rating labels located on the equipment in the
rack to determine the total power requirement of the supply circuit.
v(For sliding drawers) Do not pull out or install any drawer or feature if the
rack stabilizer brackets are not attached to the rack. Do not pull out more than
one drawer at a time. The rack might become unstable if you pull out more
than one drawer at a time.
v(For fixed drawers) This drawer is a fixed drawer and must not be moved for
servicing unless specified by the manufacturer. Attempting to move the
drawer partially or completely out of the rack might cause the rack to become
unstable or cause the drawer to fall out of the rack.
(R001 part 2 of 2)
Safety and environmental notices v

CAUTION:
Removing components from the upper positions in the rack cabinet improves
rack stability during a relocation. Follow these general guidelines whenever you
relocate a populated rack cabinet within a room or building.
vReduce the weight of the rack cabinet by removing equipment starting at the
top of the rack cabinet. When possible, restore the rack cabinet to the
configuration of the rack cabinet as you received it. If this configuration is not
known, you must observe the following precautions.
– Remove all devices in the 32U position and above.
– Ensure that the heaviest devices are installed in the bottom of the rack
cabinet.
– Ensure that there are no empty U-levels between devices installed in the
rack cabinet below the 32U level.
vIf the rack cabinet you are relocating is part of a suite of rack cabinets, detach
the rack cabinet from the suite.
vIf the rack cabinet you are relocating was supplied with removable outriggers
they must be reinstalled before the cabinet is relocated.
vInspect the route that you plan to take to eliminate potential hazards.
vVerify that the route that you choose can support the weight of the loaded
rack cabinet. Refer to the documentation that comes with your rack cabinet for
the weight of a loaded rack cabinet.
vVerify that all door openings are at least 760 x 230 mm (30 x 80 in.).
vEnsure that all devices, shelves, drawers, doors, and cables are secure.
vEnsure that the four leveling pads are raised to their highest position.
vEnsure that there is no stabilizer bracket installed on the rack cabinet during
movement.
vDo not use a ramp inclined at more than 10 degrees.
vWhen the rack cabinet is in the new location, complete the following steps:
– Lower the four leveling pads.
– Install stabilizer brackets on the rack cabinet.
– If you removed any devices from the rack cabinet, repopulate the rack
cabinet from the lowest position to the highest position.
vIf a long-distance relocation is required, restore the rack cabinet to the
configuration of the rack cabinet as you received it. Pack the rack cabinet in
the original packaging material, or equivalent. Also lower the leveling pads to
raise the casters off the pallet and bolt the rack cabinet to the pallet.
(R002)
CAUTION:
vRack is not intended to serve as an enclosure and does not provide any
degrees of protection required of enclosures.
vIt is intended that equipment installed within this rack will have its own
enclosure. (R005).
CAUTION:
Tighten the stabilizer brackets until they are flush against the rack. (R006)
CAUTION:
Use safe practices when lifting. (R007)
vi Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide

CAUTION:
Do not place any object on top of a rack-mounted device unless that
rack-mounted device is intended for use as a shelf. (R008)
CAUTION:
If the rack is designed to be coupled to another rack only the same model rack
should be coupled together with another same model rack. (R009)
Danger notices for Storwize V7000
Ensure that you are familiar with the danger notices for Storwize V7000.
Use the reference numbers in parentheses at the end of each notice, such as (C003)
for example, to find the matching translated notice in IBM Storwize V7000 Safety
Notices.
Safety and environmental notices vii

DANGER
When working on or around the system, observe the following precautions:
Electrical voltage and current from power, telephone, and communication
cables are hazardous. To avoid a shock hazard:
vIf IBM supplied a power cord(s), connect power to this unit only with the
IBM provided power cord. Do not use the IBM provided power cord for
any other product.
vDo not open or service any power supply assembly.
vDo not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical storm.
vThe product might be equipped with multiple power cords. To remove all
hazardous voltages, disconnect all power cords.
vConnect all power cords to a properly wired and grounded electrical outlet.
Ensure that the outlet supplies proper voltage and phase rotation according
to the system rating plate.
vConnect any equipment that will be attached to this product to properly
wired outlets.
vWhen possible, use one hand only to connect or disconnect signal cables.
vNever turn on any equipment when there is evidence of fire, water, or
structural damage.
vDisconnect the attached power cords, telecommunications systems,
networks, and modems before you open the device covers, unless
instructed otherwise in the installation and configuration procedures.
vConnect and disconnect cables as described in the following procedures
when installing, moving, or opening covers on this product or attached
devices.
To disconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove the power cords from the outlets.
3. Remove the signal cables from the connectors.
4. Remove all cables from the devices.
To connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. Attach the power cords to the outlets.
5. Turn on the devices.
vSharp edges, corners and joints may be present in and around the system.
Use care when handling equipment to avoid cuts, scrapes and pinching.
(D005)
DANGER
Heavy equipment–personal injury or equipment damage might result if
mishandled. (D006)
DANGER
viii Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide

Observe the following precautions when working on or around your IT rack
system:
vHeavy equipment–personal injury or equipment damage might result if
mishandled.
vAlways lower the leveling pads on the rack cabinet.
vAlways install stabilizer brackets on the rack cabinet.
vTo avoid hazardous conditions due to uneven mechanical loading, always
install the heaviest devices in the bottom of the rack cabinet. Always install
servers and optional devices starting from the bottom of the rack cabinet.
vRack-mounted devices are not to be used as shelves or work spaces. Do not
place objects on top of rack-mounted devices.
vEach rack cabinet might have more than one power cord. Be sure to
disconnect all power cords in the rack cabinet when directed to disconnect
power during servicing.
vConnect all devices installed in a rack cabinet to power devices installed in
the same rack cabinet. Do not plug a power cord from a device installed in
one rack cabinet into a power device installed in a different rack cabinet.
vAn electrical outlet that is not correctly wired could place hazardous
voltage on the metal parts of the system or the devices that attach to the
system. It is the responsibility of the customer to ensure that the outlet is
correctly wired and grounded to prevent an electrical shock.
(R001 part 1 of 2)
DANGER
Racks with a total weight of > 227 kg (500 lb.), Use Only Professional Movers!
(R003)
DANGER
Do not transport the rack via fork truck unless it is properly packaged,
secured on top of the supplied pallet. (R004)
Safety and environmental notices ix

DANGER
Main Protective Earth (Ground):
This symbol is marked on the frame of the rack.
The PROTECTIVE EARTHING CONDUCTORS should be terminated at that
point. A recognized or certified closed loop connector (ring terminal) should
be used and secured to the frame with a lock washer using a bolt or stud.
The connector should be properly sized to be suitable for the bold or stud,
the locking washer, the rating for the conducting wire used, and the
considered rating of the breaker. The intent is to ensure the frame is
electrically bonded to the PROTECTIVE EARTHING CONDUCTORS. The
hole that the bolt or stud goes into where the terminal conductor and the lock
washer contact should be free of any non-conductive material to allow for
metal to metal contact. All PROTECTIVE EARTHING CONDUCTORS
should terminate at this main protective earthing terminal or at points
marked with . (R010)
Special caution and safety notices
This information describes special safety notices that apply to the Storwize V7000.
These notices are in addition to the standard safety notices supplied and address
specific issues relevant to the equipment provided.
General safety
When you service the Storwize V7000, follow general safety guidelines.
Use the following general rules to ensure safety to yourself and others:
vObserve good housekeeping in the area where the devices are kept during and
after maintenance.
vFollow the guidelines when lifting any heavy object:
1. Ensure that you can stand safely without slipping.
2. Distribute the weight of the object equally between your feet.
3. Use a slow lifting force. Never move suddenly or twist when you attempt to
lift.
4. Lift by standing or by pushing up with your leg muscles; this action removes
the strain from the muscles in your back. Do not attempt to lift any objects that
weigh more than 18 kg (40 lb) or objects that you think are too heavy for you.
vDo not perform any action that causes a hazard or that makes the equipment
unsafe.
vBefore you start the device, ensure that other personnel are not in a hazardous
position.
vPlace removed covers and other parts in a safe place, away from all personnel,
while you are servicing the unit.
vKeep your tool case away from walk areas so that other people will not trip over
it.
xStorwize V7000: Troubleshooting, Recovery, and Maintenance Guide

vDo not wear loose clothing that can be trapped in the moving parts of a device.
Ensure that your sleeves are fastened or rolled up above your elbows. If your
hair is long, fasten it.
vInsert the ends of your necktie or scarf inside clothing or fasten it with a
nonconducting clip, approximately 8 cm (3 in.) from the end.
vDo not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your
clothing.
Remember: Metal objects are good electrical conductors.
vWear safety glasses when you are: hammering, drilling, soldering, cutting wire,
attaching springs, using solvents, or working in any other conditions that might
be hazardous to your eyes.
vAfter service, reinstall all safety shields, guards, labels, and ground wires.
Replace any safety device that is worn or defective.
vReinstall all covers correctly after you have finished servicing the unit.
Handling static-sensitive devices
Ensure that you understand how to handle devices that are sensitive to static
electricity.
Attention: Static electricity can damage electronic devices and your system. To
avoid damage, keep static-sensitive devices in their static-protective bags until you
are ready to install them.
To reduce the possibility of electrostatic discharge, observe the following
precautions:
vLimit your movement. Movement can cause static electricity to build up around
you.
vHandle the device carefully, holding it by its edges or frame.
vDo not touch solder joints, pins, or exposed printed circuitry.
vDo not leave the device where others can handle and possibly damage the
device.
vWhile the device is still in its antistatic bag, touch it to an unpainted metal part
of the system unit for at least two seconds. (This action removes static electricity
from the package and from your body.)
vRemove the device from its package and install it directly into your Storwize
V7000, without putting it down. If it is necessary to put the device down, place
it onto its static-protective bag. (If your device is an adapter, place it
component-side up.) Do not place the device onto the cover of the Storwize
V7000 or onto a metal table.
vTake additional care when you handle devices during cold weather because
heating reduces indoor humidity and increases static electricity.
Sound pressure
Attention: Depending on local conditions, the sound pressure can exceed 85
dB(A) during service operations. In such cases, wear appropriate hearing
protection.
Environmental notices
This publication contains all the required environmental notices for IBM Systems
products in English and other languages.
Safety and environmental notices xi

The IBM Systems Environmental Notices and User Guide (ftp://
public.dhe.ibm.com/systems/support/warranty/envnotices/
environmental_notices_and_user_guide.pdf), Z125-5823 document includes
statements on limitations, product information, product recycling and disposal,
battery information, flat panel display, refrigeration, and water-cooling systems,
external power supplies, and safety data sheets.
To view a PDF file, you need Adobe Reader. You can download it at no charge
from the Adobe web site (get.adobe.com/reader/).
xii Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide

About this guide
This guide describes how to service, maintain, and troubleshoot the IBM Storwize
V7000.
The chapters that follow introduce you to the hardware components and to the
tools that assist you in troubleshooting and servicing the Storwize V7000, such as
the management GUI and the service assistant.
The troubleshooting procedures can help you analyze failures that occur in a
Storwize V7000 system. With these procedures, you can isolate the components
that fail.
You are also provided with step-by-step procedures to remove and replace parts.
Who should use this guide
This guide is intended for system administrators who use and diagnose problems
with the Storwize V7000.
Storwize V7000 library and related publications
Product manuals, other publications, and websites contain information that relates
to Storwize V7000.
Storwize V7000 Information Center
The IBM Storwize V7000 Information Center contains all of the information that is
required to install, configure, and manage the Storwize V7000. The information
center is updated between Storwize V7000 product releases to provide the most
current documentation. The information center is available at the following
website:
publib.boulder.ibm.com/infocenter/storwize/ic/index.jsp
Storwize V7000 library
Unless otherwise noted, the publications in the Storwize V7000 library are
available in Adobe portable document format (PDF) from the following website:
www.ibm.com/e-business/linkweb/publications/servlet/pbi.wss
The following table lists websites where you can find help, services, and more
information:
Table 1. IBM websites for help, services, and information
Website Address
Directory of worldwide contacts http://www.ibm.com/planetwide
Support for Storwize V7000 (2076) www.ibm.com/storage/support/storwize/v7000
Support for IBM System Storage®
and IBM TotalStorage products
www.ibm.com/storage/support/
© Copyright IBM Corp. 2010, 2013 xiii

Each of the PDF publications in the Table 2 is also available in the information
center by clicking the number in the “Order number” column:
Table 2. Storwize V7000 library
Title Description Order number
IBM Storwize V7000 Quick
Installation Guide
This guide provides
instructions for unpacking
your shipping order and
installing your system. The
first of three chapters
describes verifying your
order, becoming familiar
with the hardware
components, and meeting
environmental requirements.
The second chapter describes
installing the hardware and
attaching data cables and
power cords. The last
chapter describes accessing
the management GUI to
initially configure your
system.
GC27-2290
IBM Storwize V7000
Expansion Enclosure
Installation Guide, Machine
type 2076
This guide provides
instructions for unpacking
your shipping order and
installing the 2076 expansion
enclosure for the Storwize
V7000 system.
GC27-4234
IBM Storwize V7000
Troubleshooting, Recovery, and
Maintenance Guide
This guide describes how to
service, maintain, and
troubleshoot the Storwize
V7000 system.
GC27-2291
IBM Systems Safety Notices This guide contains
translated caution and
danger statements. Each
caution and danger
statement in the Storwize
V7000 documentation has a
number that you can use to
locate the corresponding
statement in your language
in the IBM Systems Safety
Notices document.
G229-9054
IBM Storwize V7000 Read
First Flyer
This document introduces
the major components of the
Storwize V7000 system and
describes how to get started
with the IBM Storwize V7000
Quick Installation Guide.
GC27-2293
IBM Statement of Limited
Warranty (2145 and 2076)
This multilingual document
provides information about
the IBM warranty for
machine types 2145 and
2076.
Part number: 4377322
xiv Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide

Table 2. Storwize V7000 library (continued)
Title Description Order number
IBM License Agreement for
Machine Code
This multilingual guide
contains the License
Agreement for Machine
Code for the Storwize V7000
product.
SC28-6872 (contains
Z125-5468)
IBM documentation and related websites
Table 3 lists websites that provide publications and other information about the
Storwize V7000 or related products or technologies.
Table 3. IBM documentation and related websites
Website Address
IBM Storage Management Pack for
Microsoft System Center Operations
Manager (SCOM)
The IBM Storage Host Software Solutions
Information Center describes how to install,
configure, and use the IBM Storage Management
Pack for Microsoft System Center Operations
Manager.
IBM Storage Management Console for
VMware vCenter
The IBM Storage Host Software Solutions
Information Center describes how to install,
configure, and use the IBM Storage Management
Console for VMware vCenter, which enables Storwize
V7000 and other IBM storage systems to be
integrated in VMware vCenter environments.
IBM Storage Device Driver for
VMware VAAI
IBM Storage Host Software Solutions Information
Center describes how to install, configure, and use
the IBM Storage Device Driver for VMware VAAI.
IBM Storwize V7000 Adapter for
VMware vCenter Site Recovery
Manager
The VMware website describes how to install,
configure, and use the IBM Storwize V7000 Adapter
for VMware vCenter Site Recovery Manager.
IBM Publications Center www.ibm.com/e-business/linkweb/publications/
servlet/pbi.wss
IBM Redbooks®publications www.redbooks.ibm.com/
Related accessibility information
To view a PDF file, you need Adobe Acrobat Reader, which can be downloaded
from the Adobe website:
www.adobe.com/support/downloads/main.html
How to order IBM publications
The IBM Publications Center is a worldwide central repository for IBM product
publications and marketing material.
The IBM Publications Center offers customized search functions to help you find
the publications that you need. Some publications are available for you to view or
download at no charge. You can also order publications. The publications center
displays prices in your local currency. You can access the IBM Publications Center
through the following website:
About this guide xv

www.ibm.com/e-business/linkweb/publications/servlet/pbi.wss
Related websites
The following websites provide information about Storwize V7000 or related
products or technologies:
Type of information Website
Storwize V7000 support www.ibm.com/storage/support/storwize/v7000
Technical support for IBM
storage products
www.ibm.com/storage/support/
IBM Electronic Support
registration
www.ibm.com/support/electronicsupport
Sending your comments
Your feedback is important in helping to provide the most accurate and highest
quality information.
To submit any comments about this book or any other Storwize V7000
documentation:
vGo to the feedback form on the website for the Storwize V7000 Information
Center at publib.boulder.ibm.com/infocenter/storwize/ic/index.jsp?topic=/
com.ibm.storwize v7000.doc/feedback.htm. You can use the form to enter and
submit comments. You can browse to the topic in question and use the feedback
link at the very bottom of the page to automatically identify the topic for which
you have a comment.
vSend your comments by email to [email protected]. Include the following
information in your email:
– Publication title
– Publication form number
– Page, table, or illustration numbers that you are commenting on
– A detailed description of any information that should be changed
How to get information, help, and technical assistance
If you need help, service, technical assistance, or just want more information about
IBM products, you will find a wide variety of sources available from IBM to assist
you.
Information
IBM maintains pages on the web where you can get information about IBM
products and fee services, product implementation and usage assistance, break and
fix service support, and the latest technical information. For more information,
refer to Table 4.
Table 4. IBM websites for help, services, and information
Website Address
Directory of worldwide contacts http://www.ibm.com/planetwide
Support for Storwize V7000 (2076) www.ibm.com/storage/support/storwize/v7000
xvi Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide

Table 4. IBM websites for help, services, and information (continued)
Website Address
Support for IBM System Storage
and IBM TotalStorage products
www.ibm.com/storage/support/
Note: Available services, telephone numbers, and web links are subject to change
without notice.
Help and service
Before calling for support, be sure to have your IBM Customer Number available.
If you are in the US or Canada, you can call 1 (800) IBM SERV for help and
service. From other parts of the world, see http://www.ibm.com/planetwide for
the number that you can call.
When calling from the US or Canada, choose the storage option. The agent decides
where to route your call, to either storage software or storage hardware, depending
on the nature of your problem.
If you call from somewhere other than the US or Canada, you must choose the
software or hardware option when calling for assistance. Choose the software
option if you are uncertain if the problem involves the Storwize V7000 software or
hardware. Choose the hardware option only if you are certain the problem solely
involves the Storwize V7000 hardware. When calling IBM for service regarding the
product, follow these guidelines for the software and hardware options:
Software option
Identify the Storwize V7000 product as your product and supply your
customer number as proof of purchase. The customer number is a 7-digit
number (0000000 to 9999999) assigned by IBM when the product is
purchased. Your customer number should be located on the customer
information worksheet or on the invoice from your storage purchase. If
asked for an operating system, use Storage.
Hardware option
Provide the serial number and appropriate 4-digit machine type. For the
Storwize V7000, the machine type is 2076.
In the US and Canada, hardware service and support can be extended to 24x7 on
the same day. The base warranty is 9x5 on the next business day.
Getting help online
You can find information about products, solutions, partners, and support on the
IBM website.
To find up-to-date information about products, services, and partners, visit the IBM
website at www.ibm.com/storage/support/storwize/v7000.
Before you call
Make sure that you have taken steps to try to solve the problem yourself before
you call.
Some suggestions for resolving the problem before calling IBM Support include:
About this guide xvii

vCheck all cables to make sure that they are connected.
vCheck all power switches to make sure that the system and optional devices are
turned on.
vUse the troubleshooting information in your system documentation. The
troubleshooting section of the information center contains procedures to help
you diagnose problems.
vGo to the IBM Support website at www.ibm.com/storage/support/storwize/
v7000 to check for technical information, hints, tips, and new device drivers or
to submit a request for information.
Using the documentation
Information about your IBM storage system is available in the documentation that
comes with the product.
That documentation includes printed documents, online documents, readme files,
and help files in addition to the information center. See the troubleshooting
information for diagnostic instructions. The troubleshooting procedure might
require you to download updated device drivers or software. IBM maintains pages
on the web where you can get the latest technical information and download
device drivers and updates. To access these pages, go to www.ibm.com/storage/
support/storwize/v7000 and follow the instructions. Also, some documents are
available through the IBM Publications Center.
Sign up for the Support Line Offering
If you have questions about how to use the machine and how to configure the
machine, sign up for the IBM Support Line offering to get a professional answer.
The maintenance supplied with the system provides support when there is a
problem with a hardware component or a fault in the system machine code. At
times, you might need expert advice about using a function provided by the
system or about how to configure the system. Purchasing the IBM Support Line
offering gives you access to this professional advice. Taking this advice while
deploying your system can save issues further down the line.
Contact your local IBM Sales or IBM Support for this offering availability and to
purchase it, if available in your country.
What's new
New and updated information was included in this version of the book as a result
of usability testing and other feedback. Read all of the steps no matter how
familiar you are with the installation.
xviii Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide

Chapter 1. Storwize V7000 hardware components
A Storwize V7000 system consists of one or more machine type 2076 rack-mounted
enclosures.
There are several model types. The main differences among the model types are
the following items:
vThe number of drives that an enclosure can hold. Drives are located on the front
of the enclosure. An enclosure can hold up to 12 3.5-inch drives or up to 24
2.5-inch drives.
vWhether the model is a control enclosure or an expansion enclosure.
Control enclosures contain the main processing units that control the whole
system. They are where external systems, such as host application servers, other
storage systems, and management workstations are connected through the
Ethernet ports or Fibre Channel ports. Control enclosures can also be connected
to expansion enclosures through the serial-attached SCSI (SAS) ports.
Expansion enclosures contain additional storage capacity. Expansion enclosures
connect either to control enclosures or to other expansion enclosures through the
SAS ports.
vIf the control enclosure has either 1 Gbps Ethernet capability or 10 Gbps
Ethernet capability.
These are the control enclosure models:
vMachine type and model 2076-112, which can hold up to 12 3.5-inch drives
vMachine type and model 2076-124, which can hold up to 24 2.5-inch drives
vMachine type and model 2076-312, which can hold up to 12 3.5-inch drives and
includes 10 Gbps Ethernet capability
vMachine type and model 2076-324, which can hold up to 24 2.5-inch drives and
includes 10 Gbps Ethernet capability
These are the expansion enclosure models:
vMachine type and model 2076-212, which can hold up to 12 3.5-inch drives
vMachine type and model 2076-224, which can hold up to 24 2.5-inch drives
The machine type and model (MTM) are shown on these labels that are located on
the front and the rear of each enclosure:
vThe left end cap on the front of the enclosure. The label also indicates if the
enclosure is a control enclosure or an expansion enclosure.
vThe rear of the left enclosure flange.
Note: The labels also show the enclosure serial number. You must know the serial
number when you contact IBM support.
Because of the differences between the enclosures, you must be able to distinguish
between the control enclosures and the expansion enclosures when you service the
system. Be aware of the following differences:
vThe model type that is shown on the labels.
vThe model description that is shown on the left end cap.
© Copyright IBM Corp. 2010, 2013 1

vThe number of ports at the rear of the enclosure. Control enclosures have
Ethernet ports, Fibre Channel ports, and USB ports. Expansion enclosures do not
have any of these ports.
Components in the front of the enclosure
This topic describes the components in the front of the enclosure.
Drives
An enclosure can hold up to twelve 3.5 in. (8.89 cm) drives or up to twenty-four
2.5 in. (6.35 cm) drives.
The drives are located in the front of the enclosure. The 12 drives are mounted
horizontally in four columns with three rows.
The 24 drives are mounted vertically in one row.
Note: The drive slots cannot be empty. A drive assembly or blank carrier must be
in each slot.
Figure 1 shows 12 drives, and Figure 2 shows 24 drives.
Drive indicators
The drives have two LED indicators each. They have no controls or connectors.
The LED color is the same for both drives. The LEDs for the 3.5-inch drives are
placed vertically above and below each other. The LEDs for the 2.5-inch drives are
placed next to each other at the bottom.
svc00609
Figure 1. 12 drives on either 2076-112 or 2076-312
svc00608
Figure 2. 24 drives on either 2076-124 or 2076-324
2Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide