HP 20 MODULAR SMART ARRAY User manual

HP StorageWorks
Modular Smart Array 20
User Guide
March 2004 (First Edition)
Part Number 347918-001

© Copyright 2004 Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice. The only warranties for
HP products and services are set forth in the express warranty statements accompanying such
products and services. Nothing herein should be construed as constituting an additional
warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
HP StorageWorks Modular Smart Array 20 User Guide
March 2004 (First Edition)
Part Number 347918-001

HP StorageWorks Modular Smart Array 20 User Guide iii
Removing the Enclosure Components ............................................................................ 3-1
Mounting the Enclosure in the Rack ............................................................................... 3-2
Contents
About This Guide
Audience Assumptions..................................................................................................... vii
Important Safety Information........................................................................................... vii
Symbols on Equipment .................................................................................................... vii
Symbols in Text.................................................................................................................ix
Getting Help ...................................................................................................................... ix
Technical Support....................................................................................................... ix
HP Website ...................................................................................................................x
Authorized Reseller ......................................................................................................x
Reader’s Comments ............................................................................................................x
Chapter 1
Enclosure Features
Chapter 2
Identifying the Enclosure Components
Enclosure......................................................................................................................... 2-1
Power Supply Unit .......................................................................................................... 2-3
Controller Module ........................................................................................................... 2-4
Drive and Drive Blank .................................................................................................... 2-5
Fan Assembly.................................................................................................................. 2-7
Chapter 3
Installing the Enclosure in a Rack
Preparing the Rack .......................................................................................................... 3-1

Contents
Completing the Installation..............................................................................................3-7
Chapter 4
Configuring the Enclosure Drives
Chapter 5
Replacing Enclosure Components
Replacement Procedures..................................................................................................5-1
Disk Drive or Drive Blank ........................................................................................5-2
Fan Assembly............................................................................................................5-3
Power Supply Unit ....................................................................................................5-3
Controller Module.....................................................................................................5-3
Battery Packs (in the Controller Module) .................................................................5-4
Appendix A
Regulatory Compliance Notices
Federal Communications Commission Notice ...............................................................A-1
Class A Equipment...................................................................................................A-2
Class B Equipment...................................................................................................A-2
Declaration of Conformity for Products Marked with the FCC Logo, United States
Only..........................................................................................................................A-3
Modifications ...........................................................................................................A-3
Cables.......................................................................................................................A-3
Canadian Notice (Avis Canadien) ..................................................................................A-4
Class A Equipment...................................................................................................A-4
Class B Equipment...................................................................................................A-4
European Union Notice ..................................................................................................A-4
Japanese Notice...............................................................................................................A-5
Korean Notices ...............................................................................................................A-5
BSMI Notice...................................................................................................................A-6
Battery Replacement Notice ...........................................................................................A-6
Appendix B
Electrostatic Discharge
Preventing Electrostatic Damage.................................................................................... B-1
Grounding Methods to Prevent Electrostatic Damage.................................................... B-2
iv HP StorageWorks Modular Smart Array 20 User Guide

Contents
Appendix C
Specifications
Physical Specifications....................................................................................................C-1
Power Specifications .......................................................................................................C-2
Environmental Specifications..........................................................................................C-2
Index
HP StorageWorks Modular Smart Array 20 User Guide v

About This Guide
This guide provides step-by-step instructions for installation and reference
information for operation of the HP StorageWorks Modular Smart Array 20
disk drive enclosure.
Audience Assumptions
This guide is for the person who installs, administers, and troubleshoots servers. HP
assumes you are qualified in the servicing of computer equipment and trained in
recognizing hazards in products with hazardous energy levels.
Important Safety Information
Before installing this product, read the Important Safety Information document
included with the server.
Symbols on Equipment
The following symbols may be placed on equipment to indicate the presence of
potentially hazardous conditions:
WARNING: This symbol, in conjunction with any of the following symbols,
indicates the presence of a potential hazard. The potential for injury exists if
warnings are not observed. Consult your documentation for specific details.
HP StorageWorks Modular Smart Array 20 User Guide vii

About This Guide
This symbol indicates the presence of hazardous energy circuits or electric
shock hazards. Refer all servicing to qualified personnel.
WARNING: To reduce the risk of injury from electric shock hazards, do not
open this enclosure. Refer all maintenance, upgrades, and servicing to
qualified personnel.
This symbol indicates the presence of electric shock hazards. The area
contains no user or field serviceable parts. Do not open for any reason.
WARNING: To reduce the risk of injury from electric shock hazards, do not
open this enclosure.
This symbol on an RJ-45 receptacle indicates a network interface connection.
WARNING: To reduce the risk of electric shock, fire, or damage to the
equipment, do not plug telephone or telecommunications connectors into this
receptacle.
This symbol indicates the presence of a hot surface or hot component. If this
surface is contacted, the potential for injury exists.
WARNING: To reduce the risk of injury from a hot component, allow the
surface to cool before touching.
These symbols, on power supplies or systems, indicate that the
equipment is supplied by multiple sources of power.
WARNING: To reduce the risk of injury from electric shock,
remove all power cords to completely disconnect power from the
system.
Weight in kg
Weight in lb
This symbol indicates that the component exceeds the recommended
weight for one individual to handle safely.
WARNING: To reduce the risk of personal injury or damage to the
equipment, observe local occupational health and safety requirements
and guidelines for manual material handling.
viii HP StorageWorks Modular Smart Array 20 User Guide

About This Guide
Symbols in Text
These symbols may be found in the text of this guide. They have the following
meanings.
WARNING: Text set off in this manner indicates that failure to follow directions
in the warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could
result in damage to equipment or loss of information.
IMPORTANT: Text set off in this manner presents essential information to explain a concept
or complete a task.
NOTE: Text set off in this manner presents additional information to emphasize or supplement
important points of the main text.
Getting Help
If you have a problem and have exhausted the information in this guide, you can get
further information and other help in the following locations.
Technical Support
In North America, call the HP Technical Support Phone Center at 1-800-652-6672.
This service is available 24 hours a day, 7 days a week. For continuous quality
improvement, calls may be recorded or monitored. Outside North America, call the
nearest HP Technical Support Phone Center. Telephone numbers for worldwide
Technical Support Centers are listed on the HP website, http://www.hp.com.
Be sure to have the following information available before you call HP:
• Technical support registration number (if applicable)
• Product serial number
HP StorageWorks Modular Smart Array 20 User Guide ix

About This Guide
• Product model name and number
• Applicable error messages
• Add-on boards or hardware
• Third-party hardware or software
• Operating system type and revision level
HP Website
The HP website has information on this product as well as the latest drivers and flash
ROM images. You can access the HP website at http://www.hp.com.
Authorized Reseller
For the name of your nearest authorized reseller:
• In the United States, call 1-800-345-1518.
• In Canada, call 1-800-263-5868.
• Elsewhere, see the HP website for locations and telephone numbers.
Reader’s Comments
HP welcomes your comments on this guide. Send your comments and suggestions to
[email protected].
x HP StorageWorks Modular Smart Array 20 User Guide

1
Enclosure Features
The HP StorageWorks Modular Smart Array 20 (MSA20) is an Ultra320 host
connect disk drive enclosure that uses Serial ATA (SATA) drives. The MSA20
delivers a low-cost, high-capacity solution that is suitable for minimum I/O workload
situations such as storing reference data, archiving files, and performing disk-to-disk
backups.
You can connect the MSA20 to the external port of any sixth-generation Smart Array
controller or to an MSA1500 controller shelf (MSA1500 cs). These external
controllers enable you to configure the SATA drives in the MSA20 with RAID levels
of 0, 1+0, 5, or ADG.
The MSA20 also has an internal controller module with a battery-backed write cache.
The cache allows data to be transferred rapidly to the SATA drives, and the battery-
backed feature protects data held in the cache for up to four days if power to the
enclosure is interrupted.
The enclosure components incorporate some important safety and redundancy
features. For example, if one power supply unit fails, the remaining functional unit
can temporarily provide enough power for a fully equipped enclosure. Similarly, if
one fan fails, the remaining fan runs at a faster speed, and can temporarily provide
enough cooling for a fully equipped enclosure. In either case, replace the failed
component as soon as possible to maximize the life expectancy of the remaining
power supply or fan.
For more information about features of the MSA20 enclosure, refer to the HP
website, http://www.hp.com.
HP StorageWorks Modular Smart Array 20 User Guide 1-1

2
Identifying the Enclosure Components
Enclosure
Figure 2-1: Enclosure, front view
Item Description
1 Mounting bracket covers (bezel ears)
2 Drive blank in bay 3
3 Drive blank in bay 4
Note: The enclosure is shipped with 10 drive blanks. Insert
blanks into unused drive bays in a working enclosure so that the
correct enclosure airflow is maintained.
HP StorageWorks Modular Smart Array 20 User Guide 2-1

Identifying the Enclosure Components
Figure 2-2: Enclosure, rear view
Item Description
1 Arrow buttons (for future use)
2 Enclosure ID display—In dicates the box ID number
assigned to the enclosure during drive configuration
3 Unit identification button— Causes the blue LED on all
drives in the enclosure to be illuminated
4 Enclosure Monitor status LED— Glows green to
indicate that the enclosure monitor (Global Service
Indicator, or GSI) is functional
5 Enclosure fault LED—Glows amber when any other
LED in the enclosure is amber, if the GSI is functional
6 Enclosure power button
7 Power supply units
8 Fan assemblies
9 Controller module
WARNING: Do not use the handles on the power supply units to lift or hold the
enclosure. These handles are designed only for holding the power supply
units or removing them from the enclosure, not for supporting the weight of
the enclosure.
2-2 HP StorageWorks Modular Smart Array 20 User Guide

Identifying the Enclosure Components
Power Supply Unit
Figure 2-3: Power supply unit
Item Description
1 Handle
2 AC power inlet
3 Release lever
4 Bicolor status LED (green or amber)
WARNING: Do not use the handles on the power supply units to lift or hold the
enclosure. These handles are designed only for holding the power supply
units or removing them from the enclosure, not for supporting the weight of
the enclosure.
HP StorageWorks Modular Smart Array 20 User Guide 2-3

Identifying the Enclosure Components
Controller Module
Figure 2-4: Controller module
Item Description
1 Upper cache battery
2 Finger hook
3 Bicolor status LED (green or amber)
4 VHDCI connector (for connecting to a sixth-generation
Smart Array controller or an MSA1500 cs enclosure)
5 Service port (for HP service technicians only)
6 Release lever
7 Controller cache (lower cache battery just visible)
2-4 HP StorageWorks Modular Smart Array 20 User Guide

Identifying the Enclosure Components
Drive and Drive Blank
Figure 2-5: Drive (in carrier) and drive blank
Item Description
1 Drive carrier
2 Release lever
3 Release button
4 Fault/ID bicolor LED (amber or blue)
5 Online LED (green)
6 Drive blank
7 Release latch
The blue ID LED illuminates when you press the unit identification button on the
rear of the enclosure. This LED also illuminates when the drive or an array
containing the drive is selected in a management application such as the HP Array
Configuration Utility (ACU).
The amber LED on a drive illuminates when the drive has failed or is predicted to fail
in the near future.
HP StorageWorks Modular Smart Array 20 User Guide 2-5

Identifying the Enclosure Components
For more information about the meaning of the various hard drive LED illumination
patterns, refer to Table 2-1.
Table 2-1: Interpreting the Drive Status LEDs
Online LED
(green)
Fault/ID LED
(amber/blue)
Meaning
On, off, or
flashing Alternating between amber
and blue
The drive has failed, or a predictive failure alert* has been
received for this drive. It has also been selected by a
management application.
On, off, or
flashing Steadily blue The drive is operating normally, and it has been selected by a management application.
On Amber, flashing
regularly (1 Hz) A predictive failure alert* has been received for this drive. Replace the drive as soon as possible.
On Off The drive is online, but it is not currently active.
Flashing
regularly (1 Hz) Amber, flashing regularly (1 Hz) The drive is part of an array that is undergoing capacity expansion or stripe migration, but a predictive failure alert*
has been received for this drive. To minimize the risk of
data loss, do not replace the drive until the expansion or
migration is complete.
Flashing
regularly (1 Hz) Off The drive is rebuilding, or it is part of an array that is undergoing capacity expansion or stripe migration.
Flashing
irregularly Amber, flashing regularly (1 Hz) The drive is active, but a predictive failure alert* has been received for this drive. Replace the drive as soon as
possible.
Flashing
irregularly
Off The drive is active, and it is operating normally.
Off Steadily amber A critical fault condition has been identified for this drive,
and the controller has placed it offline. Replace the drive
as soon as possible.
Off Amber, flashing
regularly (1 Hz)
A predictive failure alert* has been received for this drive.
Replace the drive as soon as possible.
Off Off The drive is either offline, a spare, or not configured as
part of an array.
*Predictive failure alerts can occur only when the MSA20 is connected to a Smart Array controller.
2-6 HP StorageWorks Modular Smart Array 20 User Guide
For information about interpreting the drive fault LED when the MSA20 is connected to an
MSA1500 cs, refer to the release notes at http://www.hp.com/go/msa1500cs.

Identifying the Enclosure Components
HP StorageWorks Modular Smart Array 20 User Guide 2-7
Fan Assembly
Figure 2-6: Fan assembly
Item Description
1 Bicolor status LED (green or amber)
2 Release lever

HP StorageWorks Modular Smart Array 20 User Guide 3-1
components from an enclosure that is not being used. To remove individual components from
a working enclosure, refer to the complete instructions in Chapter 5.
3
Installing the Enclosure in a Rack
Installing the enclosure in a rack involves four steps:
• Preparing the rack
• Removing the enclosure components to make the enclosure more manageable
• Mounting the enclosure in the rack
• Completing the installation process (reinstalling the components and connecting
the power)
Preparing the Rack
The racks that HP supports for use with the MSA20 enclosure are the HP System E
racks and the HP 10000 Series racks. Other racks might also be suitable, but have not
been tested with the MSA20.
For information about setting up a rack, including appropriate warnings and cautions,
refer to the relevant rack user guide.
Before mounting the enclosure in a rack, confirm that the rack location meets the
environmental requirements for the enclosure as described in Appendix C.
Removing the Enclosure Components
IMPORTANT: The following abbreviated instructions are appropriate for removing the

Installing the Enclosure in a Rack
• Controller module—Squeeze the finger hook and the release lever together
while pulling the module out of the enclosure.
• Disk drive—Press the release button, and then pull the release lever to remove
the drive from the enclosure.
• Drive blank—Squeeze the release latch while pulling the drive blank out of the
enclosure.
• Fan assembly—Lift the release lever upward while pulling it to remove the fan
assembly from the enclosure.
• Power supply unit—Squeeze the handle and the release lever together while
pulling the unit out of the enclosure.
Mounting the Enclosure in the Rack
9 kg (20 lb) empty
24 kg (53 lb) full
WARNING: Use at least two people to move or install the enclosure.
For greater safety and easier installation, reduce the enclosure
weight by removing the disk drives, power supply units, controller
module, and fan assemblies.
Each enclosure requires a vertical rack space of 2U (equivalent to 89 mm, or
3.5 inches).
1. Use the rack mounting template as a guide to indicate where on the rack the rails
for the enclosure are to be mounted.
a. At the front of the rack, with the front of the template facing you, align the
lower edge of the template with the bottom of the rack (or the top of the
previous rack component). Be sure that the lower edge of the template is
level.
3-2 HP StorageWorks Modular Smart Array 20 User Guide