Hitachi Compute Rack 210H User Manual

Hitachi Compute Rack 210H

User’s Guide

F

ASTFIND

Document Organization

Getting Help

Contents

L

INK S

MK-90CRH002-01

© 2014 Hitachi, Ltd. All rights reserved.

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Hitachi, Ltd. (hereinafter referred to as
“Hitachi”).

Hitachi reserves the right to make changes to
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assumes no responsibility for its use. This
document contains the most current information
available at the time of publication. When new
and/or revised information becomes available,
this entire document will be updated and
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may not be currently available. For information
about features and product availability, refer to
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Hitachi products is governed by the terms of
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ii

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in Japan and other countries.

Hitachi Compute Rack (hereinafter referred to as
“Compute Rack”.) is a trademark of Hitachi.

All other trademarks, service marks, and
company names are properties of their
respective owners.

Microsoft product screen shots are reprinted
with permission from Microsoft Corporation.

Hitachi Compute Rack 210H User’s Guide

Contents

Preface................................................................................................... v

Intended audience ..............................................................................................vi

Document revision level.......................................................................................vi

Document organization........................................................................................ vi

Document conventions ....................................................................................... vii

Getting help...................................................................................................... viii

Comments ........................................................................................................ viii

Before operation................................................................................... 1-1

Avoiding trouble................................................................................................1-2

Bundled Software..............................................................................................1-5

Monitoring operating status................................................................... 2-1

Fault detection ..................................................................................................2-2

Operation monitoring.........................................................................................2-8

System Unit Functions .......................................................................... 3-1

Disk arrays .......................................................................................................3-2

Redundancy....................................................................................................3-17

Wake On LAN..................................................................................................3-18

Memory RAS...................................................................................................3-20

LAN extended functions ...................................................................................3-28

Operational precautions ........................................................................ 4-1

Precautions on LAN controller.............................................................................4-2

Maintenance and service parts............................................................... 5-1

Daily maintenance items....................................................................................5-2

Cleaning ...........................................................................................................5-2

Service parts.....................................................................................................5-4

Consumables ....................................................................................................5-4

Contents iii

Hitachi Compute Rack 210H User’s Guide

Troubleshooting ....................................................................................6-1

Solving problems.............................................................................................. 6-2

Corrective actions for error................................................................................ 6-3

Acronyms and Abbreviations
Index

iv Contents

Hitachi Compute Rack 210H User’s Guide

Preface

This document describes monitoring, functions, precautions, maintenance and
troubleshooting for the Compute Rack 210H (CR 210H).
Please read this document carefully, and maintain a copy for reference.

This preface includes the following information:

 Intended audience

 Document revision level

 Document organization

 Document conventions

 Getting help

 Comments

Notice: The use of the Compute Rack is governed by the terms of your
agreements with Hitachi.

Preface v

Hitachi Compute Rack 210H User’s Guide

Intended audience

This document is intended for personnel involved in planning, managing, and
performing the tasks to prepare your site and to perform installation for the Compute
Rack.

This document assumes the following:

 The reader has a background in hardware installation of computer systems.

 The reader is familiar with the location where the Compute Rack will be installed,

including knowledge of physical characteristics, power systems and specifications,
and environmental specifications.

Document revision level

Revision Date Description

MK-90CRH002-00 June 2012 Initial release

Document organization

The table below provides an overview of the contents and organization of this
document. Click the chapter title in the left column to go to that chapter. The first
page of each chapter provides links to the sections in that chapter.

Chapter Description

Chapter 1,Before operation Describes what you should understand before operation.

Chapter 2, Monitoring

operating status

Chapter 3, System Unit

Functions

Chapter 4, Operational

precautions

Chapter 5, Maintenance and

service parts

Chapter 6, Troubleshooting Describes troubleshooting of the system unit.

Describes means for fault detection of the system unit and an operation
monitoring method.

Describes the functions of the system unit that are useful in operation.

Describes operational precautions.

Describes daily maintenance procedures, service parts and
consumables.

vi Preface

Hitachi Compute Rack 210H User’s Guide

Document conventions

The term “Compute Rack” refers to all Compute Rack models, unless otherwise
noted.

This document uses the following typographic conventions:

Convention Description

Bold

Italic

screen/code

< > angled brackets

[ ] square brackets

{ } braces

| vertical bar

underline Indicates the default value. Example: [ a | b ]

Indicates text on a window, other than the window title, including menus, menu
options, buttons, fields, and labels. Example: Click OK.

Indicates a variable, which is a placeholder for actual text provided by the user or
system. Example:

Note: Angled brackets (< >) are also used to indicate variables.

Indicates text that is displayed on screen or entered by the user.
Example:

Indicates a variable, which is a placeholder for actual text provided by the user or
system. Example:

Note: Italic font is also used to indicate variables.

Indicates optional values. Example: [ a | b ] indicates that you can choose a, b, or
nothing.

Indicates required or expected values. Example: { a | b } indicates that you must
choose either a or b.

Indicates that you have a choice between two or more options or arguments.
Examples:

[ a | b ] indicates that you can choose a, b, or nothing.

{ a | b } indicates that you must choose either a or b.

# pairdisplay -g oradb

copy source-file target-file

# pairdisplay -g <group>

This document uses the following symbols to emphasize certain information.

Symbol Label Description

WARNING

CAUTION

NOTICE

NOTICE

Note

Tip This indicates advice on how to make the best use of the equipment.

Preface vii

This indicates the presence of a potential risk that might cause death or
severe injury.

This indicates the presence of a potential risk that might cause relatively
mild or moderate injury.

This indicates the presence of a potential risk that might cause severe
damage to the equipment and/or damage to surrounding properties.

This indicates notes not directly related to injury or severe damage to
equipment.

Hitachi Compute Rack 210H User’s Guide

Getting help

When you contact customer support, provide as much information about the
problem as possible, including:

 The circumstances surrounding the error or the failure

 The exact content of any error message displayed on the host system

Compute Rack

 The service information messages, including reference codes and severity

levels, displayed and/or logged at the Compute Rack

The supply info support staff are available 24 hours a day, seven days a week.
For technical support, visit the portal site at supply URL. For contact information,
visit supply URL.

Comments

Please send us your comments on this document, if any, by e-mail to: supply
e-mail. Make sure that the e-mail includes the document title and number,
revision, and section(s) and paragraph(s) whenever possible.

Thank you! (All comments become the property of Hitachi.)

viii Preface

Hitachi Compute Rack 210H User’s Guide

1

Before operation

This chapter describes what you should understand before operation.

 Avoiding trouble

 Bundled Software

Before operation 1-1

Hitachi Compute Rack 210H User’s Guide

Avoiding trouble

This section describes the requirements for daily maintenance in order to avoid
trouble that might occur during system unit operation.

System error check

If some error occurs with the system unit, an error message might be displayed.
To resolve trouble early, verify such alerts immediately.

 Hardware errors

Perform error monitoring based on the ERROR LED of the system unit.

See Fault detection

 Software errors

Periodically monitor a software error event log. A software error, if one occurs,
is recorded on the event log. For verification of the event log of software
attached to the system unit, see the individual software manuals.

See Bandled software

Consistency check

In a disk array, a re-assign (data migration to a reserved area) is performed if a
bad block (inaccessible area) is detected on the HDD during the read/write
process. However, if a bad block exists in the mirror data part as well as in the
area not accessed for daily operations, no alternation process is performed. If
the HDD fails in such a state, data in the bad block cannot be rebuilt normally and
thus might be lost because mirror data cannot be read.

The disk array of the system unit is equipped with a patrol read function that has
been set to the factory default so it can verify or fix the HDDs periodically.
Therefore, there is no need to conduct a consistency check periodically.

on page 2-2 and Operation monitoring on page 2-8

on page 1-5

1-2 Before operation

Hitachi Compute Rack 210H User’s Guide

Network Security

Recent years have seen an increase in attacks on systems by computer viruses
and in data falsification or leaks by hacking, resulting in more serious damage.
Infection by computer viruses not only affects your own system unit (victim) but
also might inflict damage on the unspecified number of targets through networks
(victimizer). In most cases, it is often said that inflection is caused by careless
downloading of data or use of data media of unknown origin. Effective means to
prevent infection include installation of anti-virus software or firewall for blocking
illegal access.

We recommend introducing preventive means simultaneously whenever a
network connection is established. Also, security can be maintained by keeping
the anti-virus software up-to-date. However, this does not mean that the
anti-virus software can always prevent infection with computer viruses. It
becomes important to establish and operate a system to prevent infection with
such viruses.

Some computer viruses send their own copies one after another to a
connected network. If your computer is infected, we recommend
disconnecting your LAN cable immediately and isolating the computer
from the network in order to prevent secondary infection.

 System scan

Periodically check if computer viruses are hidden. It is convenient to use
anti-virus software’s scheduling function that enables automatic scanning
periodically.

 Downloading the latest date

It is essential to always update anti-virus software in order to address
computer viruses that evolve on a daily basis. A virus pattern file and the
version of anti-virus software are included as the data to be updated. No
computer viruses can be found or eliminated if neither the pattern file nor the
software version responds to the virus invaded. We recommend establishing
an environment where your anti-virus software can be updated automatically
and periodically. See the manual that comes with your anti-virus software for
more details on how to use the anti-virus software.

Windows update check

If Microsoft Windows operating system (OS) is in use, Microsoft Corporation has
released an additional program to fix errors or vulnerability of its Windows OS.
Please visit the Windows Update website to confirm and install update programs
periodically.

 Windows Update Website： http://windowsupdate.microsoft.com

Windows Update is also accessible from your Windows start menu.

Before operation 1-3

Hitachi Compute Rack 210H User’s Guide

Storing backup data

For storage devices such as HDD, or data media such as USB and memory, an
incorrect operation such as a failure or wrong formatting might lose important
data unexpectedly. If system data (data contained in Windows folders) are
destroyed, it becomes necessary to reinstall or set up the OS or applications and
thus it will take a long time to recover the system. To take proper measures,
backup data can be stored on tape or similar media to restore the system to its
most previous working state if data loss occurs. It is also possible to restore the
system to normal by creating system information backup data if system data
become lost or corrupted. We recommend backing up the system data
periodically.

For details on how to create and restore backup data, see the Windows Help or
visit the Microsoft website and search the page of backup technical information.
If backup software is used, see the manual that comes with the software.

 Microsoft Website: http://www.microsoft.com/

Operational trouble

In case of trouble or unfamiliar matters of operation, see Solving problems on
page 6-2.

1-4 Before operation

Hitachi Compute Rack 210H User’s Guide

Bundled Software

Install and use the following software program bundled with the system unit.

MegaRAID Storage Manager

This utility is necessary to manage disk array devices.
If this utility is not installed, no HDD failure can be detected, which will cause a
double failure and loss of data.
For details about using this utility, see MegaRAID Storage Manage Instruction
Manual.

Hardware Maintenance Agent

The Hardware Maintenance Agent is a utility necessary for maintenance of the
system unit. If a failure occurs on the system unit, this utility analyzes such a
failure automatically, thus facilitating identification of this failure and shortening
system recovery time.
For details about using this utility, see Hardware Maintenance Agent Windows
Edition User’s Guide.

Before operation 1-5

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(This page is intentionally left blank.)

1-6 Before operation

Hitachi Compute Rack 210H User’s Guide

2

Monitoring operating status

This chapter describes system unit fault detection and methods monitoring
operation.

 Fault detection

 Operation monitoring

Monitoring operating status 2-1

Hitachi Compute Rack 210H User’s Guide

Fault detection

This section describes how to detect a fault on the system unit. The system unit
notifies fault occurrence by the following:

Table 2-1: Fault detection method

No Method Description Remarks

1 ERROR LED

MAINTENANCE

2

LED

3 OS event log

4 STOP message

Error notification

5

by utility

Turns on in case of a system unit
hardware error.

Indicates a POST code, an event code,
and a power consumption value
alternately.

● Records an event as a system log, a
security log or an application log.

● Stores an event log generated at a
system level or an application
leveling the following directory, as
well as an error message:

● %SystemRoot%\SYSTEM32\config

Indicates if an error occurs in the kernel
due to a configuration definition
mismatch between hardware and
software, a hardware failure, or a
software glitch (OS and drivers).

Gives a message notification on an error
detected by utility software or drivers.

The LED turns off after error
recovery.

● Each code can be retained and
displayed even in the standby
state (with AC cord connected
and POWER switch OFF).

● The previous code is cleared
when the power is turned on
(POWER switch is turned on).

The logs can be referenced by
using an event viewer.

-

RAID management utility
(MegaRAID Storage Manager)
and so on

MAINTENANCE LED

Figure 2-1: ERROR LED and MAINTENANCE LED

2-2 Monitoring operating status

ERROR LED

Hitachi Compute Rack 210H User’s Guide

ERROR LED

The Baseboard Management Controller (BMC), an onboard management
controller of the system unit, turns on the ERROR LED on the front of the system
unit if a hardware error occurs, such as a HDD error, a fan error, a power supply
error, and others.

The sensors having a threshold are lit up in the Critical State (a critical state of
the system unit). But do not turn on in the Uncritical State (a state in which a
component has a failure under redundancy).

MAINTENANCE LEDs

You can choose what is displayed as the operation status from the event code,
the POST code and the power consumption using a SERVICE switch.
A combination of ON/OFF selections of MODE0 LED, MODE1 LED, and SERVICE
LED determines what is currently displayed.
A combination of ON/OFF selections of MODE0 LED, MODE1 LED, and the
SERVICE LED determines what the MAINTENANCE LEDs indicate as follows:

Table 2-2: What the MAINTENANCE LEDs indicate

SERVICE LED MODE0 LED MODE1 LED What the MAINTENANCE

LEDs indicate

Off Off Off Event code

On Off On POST code

Off On On Power consumption

When you press a SERVICE switch, the MAINTENANCE LEDs change as follows.

Pressing of SERVICE
switch (number: press
count)

Figure 2-2: MAINTENANCE LEDs indicate pressing of SERVICE switch

Monitoring operating status 2-3

Hitachi Compute Rack 210H User’s Guide

 Event code

The operation status of the system unit is displayed. Under normal operation,
all LEDs are OFF. If an error occurs, the LED corresponding to the component
where the error occurred is turned on.

Table 2-3: Event code indicate

MAINTENANCE LED Where the error occurred

1 CPUs

2 Memory

3 Motherboard

4 PCI

5 Power / Voltage

6 Fans

7 Temperature

8 Other hardware

All off Normal operation

 Post code

The POST code of the system BIOS is displayed as two-digits where one-digit
consists of four bits. The LEDs 1 through 4 indicate the upper digit.
The LEDs 5 through 8 indicate the lower digit. The smaller the LED number is
the higher bit the LED represents.
If Power On Self Test (POST) is successful, only LEDs 1, 3, 5, 6, and 7 are
turned on. (That means "AE" is displayed.)

Figure 2-3: Post code indicate

The MAINTENANCE LEDs keep the display of the POST code unless
the AC power source is turned off. In addition to that, when an error
occurred, the MAINTENANCE LEDs keep the display of the event
code. When the power is turned on, the display gets cleared.

2-4 Monitoring operating status

Hitachi Compute Rack 210H User’s Guide

 Power consumption

The rough estimate of the current power consumption of the system unit (W)
is displayed.
The numbers of turned-on MAINTENANCE LEDs indicate the power
consumption, as follows:

Table 2-4: Power consumption indicate

MAINTENANCE LED Power consumption

All Off Less than 200 W

Only 1 is On 200 W or more and less than 250 W

1 and 2 are On 250 W or more and less than 300 W

1 through 3 are On 300 W or more and less than 350 W

1 through 4 are On 350 W or more and less than 400 W

1 through 5 are On 400 W or more and less than 450 W

1 through 6 are On 450 W or more and less than 500 W

1 through 7 are On 500 W or more and less than 550 W

1 through 8 are On 550 W or more

The indicated power consumption value is not accurate. Use this
value as a just reference.

Monitoring operating status 2-5

Hitachi Compute Rack 210H User’s Guide

OS event log

An event log is the data required for investigation in Windows OS. Events that
have occurred inside the OS are recorded in the event log in chronological order.
The "Event Viewer" is provided as a management tool for referencing the event
log. In the Windows Start menu, click Start > Administrative Tools > Event
Viewer.

Event types include information, warnings and errors. It has been confirmed that
events are temporary or known instances even if they are errors or warnings. In
case of an error or a warning, see Hitachi Compute Rack 210H/220H Windows
Installation Guide or the manual that comes with the software being used.

For general Windows instances, verify the support technical information
(Knowledge Base) of Microsoft Corporation.

For details, see the Event Viewer's help.

 Microsoft Support Online:

http://support.microsoft.com/

STOP message and memory dump

If the Windows OS has been trapped in a critical state for some reason, a blue
screen appears and a STOP message is displayed. At this time, Windows can
save the STOP message information in a dump file. This is referred to as a
memory dump.
If Windows is hung up, the cause of a failure can be narrowed down by analyzing
the memory dump.

The following three types of memory dumps are available:

 Minimum memory dump (64 KB)

 Kernel memory dump

 Full memory dump

The full memory dump is effective in fault investigation. The other dumps are
extremely difficult to analyze because of less information contained therein.

The following conditions are required for full memory dump. When you configure
partitions, be aware of acquisition of a full memory dump during system
construction.

 A page file is in the Windows-installed drive (C drive).

 A page file is larger than physical memory installed + 400 MB.

 Free space for a dump file should exist in the C drive.

For details on the setting of a page file (virtual memory), see Windows help.

2-6 Monitoring operating status

Hitachi Compute Rack 210H User’s Guide

Error notification by utilities

Utility programs, such as MegaRAID Storage Manager, use a popup message or
an internal event log to be displayed for error notification.

For more details on error notification of those utilities, see the individual
manuals.

Monitoring operating status 2-7

Hitachi Compute Rack 210H User’s Guide

Operation monitoring

This section describes the items to be monitored on a daily basis on the system
unit.

As mentioned in Fault detection

on page 2-2, the system unit has a variety of
functions for giving hardware or software error notifications. Using these
functions, monitor the operation so as not to overlook a fault or its symptom.

Major monitoring items are as follows:

Table 2-5: Major monitoring items

No Item Checking cycle

Check the operating status of the system unit or
internal options for errors, such as turned on

1

ERROR LED and fans abnormal noise.

2 Check an OS event log for errors. Every day

3 Check for error notifications by utilities. Every day

Every six months

To monitor the operation of the system unit, see the following manuals:

 Operating status of system unit and internal options

– See Maintenance and service parts

– See Optional PCI card instruction manual

 Monitoring of OS event logs

– Manuals that come with the OS

– Help of OS monitoring tools

 Monitoring by RAID management utility "MegaRAID Storage Manager"

– See MegaRAID Storage Manager Instruction Manual

 Monitoring by other utilities

– Manual that comes with each utility

2-8 Monitoring operating status

Hitachi Compute Rack 210H User’s Guide

3

System Unit Functions

This chapter describes the functions of the system unit that are useful in
operation.

 Disk arrays

 Redundancy

 Wake On LAN

 Memory RAS

 LAN extended functions

System Unit Functions 3-1

Hitachi Compute Rack 210H User’s Guide

Disk arrays

This section describes the disk array functions.

About disk arrays

The disk array is a technique used as one or more logical units (LU) by connecting
two or more HDDs to each other, which is also referred to as a Redundant Arrays
of Inexpensive Disks (RAID).

The disk array has two main advantages: one is to segment data into some
component and decentralize onto the HDDs in the disk array (data striping) in
order to improve I/O performance higher than a single disk in terms of a disk
array, and the other is to create an array parity for data recovery in order to
prevent data loss in case one of the HDDs in the disk array should fail.

NOTICE

Even the disk array cannot prevent data loss that is caused by a
non-HDD failure, software overrun or operation errors. Just in case,
back up your system data.

 Disk array:

A virtual drive consisting of multiple physical drives, which cannot
be recognized by the OS as it is.

 Logical drive:

A logical drive configured in the disk array, which is recognized by
the OS in the same manner as a physical drive.

 You can assign capacity larger than 2 TB (2199 GB) for the logical

drive set as disk array but do not assign capacity larger than 2 TB
for the logical drive the OS is installed to. Otherwise the OS cannot
create a partition anymore. Use the RAID management utility or the
RAID BIOS to reconstruct the disk arrays and the logical drives.

3-2 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

RAID level feature

Depending on a RAID level, disk arrays are typically classified into six types:
RAID0 to RAID5. The system unit supports RAID0, RAID1, and RAID5 as well as
RAID6, RAID10, JBOD which are specific to the array controller. The method and
features of each RAID level are described below.

RAID0

Host

Data

Array Controller

Block 1

Block 6

Disk 1

Block 2

Block 7

Disk 2

Block 3

Block 8

Disk 3

Block 4

Block 9

Disk 4

Block 5

Block 10

Disk 5

Figure 3-1: RAID0 method

Data is striped on multiple HDDs.

 Advantage:

Particularly, the throughput is improved for a large number of files.

 Disadvantage:

All data is lost if one of the hard disks in the disk array fails because of no
redundancy.

 Number of HDDs required: 2 (min.) to 6 (max.)

System Unit Functions 3-3

Hitachi Compute Rack 210H User’s Guide

RAID1

Host

Data

Array Controller

Block 1

Block 2

Disk 1

(Data Disk)

Block 1

Block 2

Disk 2

(Mirrored Disk)

Figure 3-2: RAID1 method

Data is stored on one HDD (data disk) and the other one (mirrored disk).

 Advantage:

Provides 100% data redundancy, thus enabling easy switching between two
disks to continue read or write processing if a disk failure occurs. HDD
interchange also allows data reconstruction without shutdown operations.

 Disadvantage:

– A double HDD capacity is required because a mirrored disk of the same

capacity should be installed.

– An attempt to read or write data during data rebuild causes a decrease in

processing performance.

 Number of HDDs required: 2

3-4 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

RAID5

Host

Data

Array Controller

Parity

Block 5

Disk 1

Block 1

Parity

Disk 2

Block 2

Block 6

Disk 3

Block 3

Block 7

Disk 4

Block 4

Block 8

Disk 5

Figure 3-3: RAID5 method

Data is striped block by block on all the HDDs together with array parity.

 Advantage:

– As compared to RAID1, the capacity cost effectiveness is improved.

– Data distribution onto HDDs provides data redundancy. Therefore, a read

or write can be performed on each HDD independently. Data striping on a
block basis is suitable for transaction processing.

– Even if one of the HDDs in the disk array fails, read or write processing can

be continued while array parity is computing the lost data. HDD
interchange enables data reconstruction without shutting down
operations.

– The array parity distributed on each HDD has the advantage that parallel

processing by independent access to HDDs is implemented during data
write operation.

 Disadvantage:

– RAID5 is inferior to RAID0 in write performance because of an array parity

generated during write processing.

– An attempt to read or write data during data rebuild causes a decrease in

processing performance.

 Number of HDDs required: 3 (min.) to 6 (max.)

System Unit Functions 3-5

Hitachi Compute Rack 210H User’s Guide

RAID6

Host

Data

Array Controller

Parity 1

Block 4

Disk 1

Parity 2

Parity 1

Disk 2

Block 1

Parity 2

Disk 3

Block 2

Block 5

Disk 4

Block 3

Block 6

Disk 5

Figure 3-4: RAID6 method

Data is striped block by block on all the HDDs together with array parity.

 Advantage:

– As compared to RAID5, two types of parities generated improve

redundancy.

– Data distribution onto HDDs provides data redundancy. Therefore, a read

or write can be performed on each HDD independently. Data striping on a
block basis is suitable for transaction processing.

– Even if up to two of the HDDs in the disk array fail, read or write

processing can be continued while array parity is computing the lost data.
HDD interchange enables data reconstruction without shutting down
operations.

– The array parity distributed on each HDD has the advantage that parallel

processing by independent access to HDDs is implemented during data
write operation.

 Disadvantage:

– RAID6 is inferior to RAID5 in write performance because of two types of

parities generated during write processing.

– An attempt to read or write data during data rebuild causes a decrease

in processing performance.

 Number of HDDs required: 4 (min.) to 6 (max.)

3-6 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

RAID10

Host

Data

Array Controller

Block 1

Block 3

Disk 1

RAID 1 RAID 1

Block 1

Block 3

Disk 2

RAID 0

Block 2

Block 4

Disk 3

Block 2

Block 4

Disk 4

Figure 3-5: RAID10 method

Data is striped on multiple HDDs and is duplicated. The features of both RAID0
and RAID1 are provided.

 Advantage:

– Provides 100% data redundancy, thus enabling easy switching between

two disks to continue read or write processing if a disk failure occurs. HDD
interchange also allows data reconstruction without shutdown operations.

– Particularly, the throughput is improved for a large number of files.

– Typically, RAID10 is superior to RAID5 in write performance because no

array parity is generated.

 Disadvantage:

– A double hard disk capacity is required because a mirrored disk of the

same capacity should be installed.

– An attempt to read or write data during data rebuilding causes a decrease

in processing performance.

 Number of HDDs required: 4 (min.) to 6 (max.)

System Unit Functions 3-7

Hitachi Compute Rack 210H User’s Guide

JBOD

Host

Data

Array Controller

Block 1

Block 2

Disk 1

Figure 3-6: JBOD method

Data is stored only on one HDD.
JBOD performs no data redundancy and works like a HDD connected to a typical
SAS/SATA controller.

 Number of HDDs required: 1

JBOD is RAID0 configured with one HDD.

3-8 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

Functions of Disk Array

Degraded mode

NOTICE

Even if one of the HDDs in RAID1, RAID5, RAID6, or RAID10 disk array fails*,
you can continue to use the disk array as usual. It is said that the disk array with
one HDD failing* is operating in degraded mode. In response to a read/write
request, the array controller uses the data and array parity (for RAID5 and
RAID6) of the active disks to compute the data of the failed disk and continue
operation as it is. However, the data computation required causes a decrease in
processing performance as compared to the normal status.

*: RAID6 can operate even if two HDDs fail.

Rebuilding data

In the disk array of RAID1, 5, 6, or 10, after the failed disk is replaced, the array
controller restores and stores data on the replaced disk. This is referred to as
rebuilding data. Although the disk array can continue operating while rebuilding
data, its processing performance lowers kind of degraded mode as compared to
normal status.

If another HDD failure occurs while the disk array is operating in
degraded mode, the disk array cannot rebuild data, thus losing all
data. Replace the failed disk as soon as possible and rebuild data.

If a HDD fails in the drive group having multiple logical drives, all the
disks under the drive group will operate in degraded mode.

If another HDD failure occurs while the disk array is operating in degraded mode,
the disk array cannot rebuild data, thus losing all data. In such a case, replace
the failed disk as soon as possible and rebuild data.

RAID0 and JBOD cannot rebuild data because neither data duplication
nor parity generation is conducted on their drives.

System Unit Functions 3-9

Hitachi Compute Rack 210H User’s Guide

Hot plug

Hot spare

If a logical drive is operating in degraded mode, the failed disk must be replaced
as soon as possible. If the system unit is shut down once at this time, it takes
more time to replace the disk. Above all, the system operation must be shut
down. It will take longer time to replace the degraded disk after turning off power
to the system unit.

A hot plug or hot swap is referred to as a function for resolving this problem,
enabling the user to replace a HDD without shutting down the system unit.

If a failure occurs on the logical drive of RAID1, 5, 6, or 10, the failed disk must
be replaced to return the system normal status. If a spare disk (reserve disk) is
premounted on the array controller, data can be automatically restored on the
reserve disk in case of a failure. Preparing this reserve disk so that it can be
exchanged at any time is referred to as a hot spare. A function for the array
controller to restore data automatically to the hot spare is referred to as standby
replacement.

 Depending on a logical drive configuration, a hot spare might be

unavailable.

 Hot spares include a "global hot spare" that becomes effective to all

the configured logical drives (RAID1, 5, 6, and 10), and a
"dedicated hot spare" that becomes effective only to one of the
configured logical drives (RAID1, 5, 6, or 10).

3-10 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

SMART copyback function

SMART copyback is a function to replace an HDD safely. If a SMART failure occurs
on an HDD in the logical drive of RAID1, 5, 6, or 10, a data of the failed HDD is
copied to a reserve disk with keeping redundancy of a logical disk.

This function decreases the outbreak probability of the failure of a logical drive
according to the failure of a further HDD under rebuilding.
However, the process performance decreases in comparison with normal state
under copying to perform data copying by SMART copyback.

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5 DISK 6

Disk array

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5 DISK 6

Disk array

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5 DISK 6

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5 DISK 6

A SMART error occurred in
DISK1. Copy DISK1 data to
reserve disk (DISK6)

DISK1 will be registared as failed
disk after finish a copy.
Re-run with DISK2 to DISK6

Disk array

Replace DISK1
(failed disk) (operator)

Disk array

Figure 3-7: SMART copyback function

Active disk

Reserved disk

Failed disk

System Unit Functions 3-11

Hitachi Compute Rack 210H User’s Guide

Failure recovery flow

The failure recovery flow for RAID5 with five logical drives working is illustrated
below. In this illustration, two cases are explained: one with a reserve disk and
the other without a reserve disk.

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5 DISK 6

Disk array

An error occurred in
DISK1. Transition to
degraded mode

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5 DISK 6

Disk array

Rebuild DISK1 data to
reserved disk (DISK6)

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5 DISK 6

Disk array

Re-run with DISK2 to DISK6

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5 DISK 6

Disk array

Replace DISK1
(failed disk) (operator)

Active disk

Reserved disk

Failed disk

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5 DISK 6

Disk array

Figure 3-8: A case with a reserve disk

3-12 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5

Disk array

An error occurred in
DISK1. Transition to
degraded mode

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5

Disk array

Replace DISK1
(failed disk) (operator)

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5

Disk array

Rebuild DISK1 data

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5

Disk array

Re-run with DISK1
to DISK5

Active disk

Failed disk

DISK 1 DISK 2 DISK 3 DISK 4 DISK 5

Disk array

Figure 3-9: A case without a reserve disk

System Unit Functions 3-13

Hitachi Compute Rack 210H User’s Guide

Precautions on building a disk array

HDDs

The HDD used with one disk array must have the same capacity and rotating
speed.

If two or mo re disk arrays ar e built on the sys t em uni t , HDDs u s ed with e ach di s k
array might be different. If a reserve disk is used, however, care must be taken
for operation. For details, see Reserve disk on page 3-14.

1

Extension
storage bay

A-0

2

A-1

3

A-2

4

B-0

5

B-1

6

B-2

Figure 3-10: Capacity of the HDD to use for disk array

HDD installation location

In consideration of system management, install in a successive extension
storage bay the HDDs to be used with a single disk array. We also recommend to
record disk array and logical drive configurations.

If a failure occurs, however, the installation location depends on whether a
reserve disk is provided. For this reason, make a record each time.

Extension
storage bay

1

2

3

4

5

6

A-0

A-1

B-0

B-1

B-2

B-3

Disk array A

Disk array B

Disk array A

Disk array B

Disk array A:

HDD A-0 = A-1 = A-2

Disk array B:

HDD B-0 = B-1 = B-2

However, there is no problem
if A-x ≠ B-x

Disk array A:

Extension storage bays 1 and 2

Disk array B :

Extension storage bays 3 to 6

Extension
storage bay

Disk array A

1

2

3

4

5

6

Figure 3-11: HDD installation location

3-14 System Unit Functions

B-0

A-0

B-1

B-2

A-1

B-3

Disk array B

Disk array A:

Extension storage bays 2 and 5

Disk array B:

Extension storage bays 1, 3, 4, and 6

Hitachi Compute Rack 210H User’s Guide

Reserve disk

A

Install a reserve disk same as disk type, capacity and rotation speed. If set for
"global hot spare", install largest-capacity HDD.

Note that if there are two or more disk arrays, an attempt to set a reserve disk as
a "global hot spare" will cause the following event. Be extremely careful with the
operation.

A reserve disk example is described below by using the following disk array.

Extension
storage bay

1

2

3

4

5

6

A-0

A-1

B-0

B-1

B-2

Reserve

Disk array

Disk array B

Disk array A: RAID1
Disk array B: RAID5
Reserve disk: Provided

Figure 3-12: Example for install reserve disk

Two or more disk arrays with a RAID level of 1, 5, 6, or 10

The reserve disk functions as a hot spare on either disk array. Depending on a
HDD hot spare, the following configuration is applied.

1

A
A failure occurs
on HDD A-1 of
disk array A.

B
A failure occurs
on HDD B-1 of
disk array B.

Extension
storage bay

Extension
storage bay

2

3

4

5

6

1

2

3

4

5

6

A-0

A-1

B-0

B-1

B-2

Reserve

A-0

Reserve

B-0

B-1

B-2

A-1

Rebuild

Rebuild

A-0

Reserve

B-0

B-1

B-2

A-1

A-0

B-1

B-0

Reserve

B-2

A-1

Replace disk
(Becomes reserved disk)

Replace disk
(Becomes reserved disk)

C
A failure occurs
on HDD A-1 of
disk array A.

Figure 3-13: Transition of reserve disk

System Unit Functions 3-15

1

2

3

4

5

6

A-0

B-1

B-0

Reserve

B-2

A-1

Rebuild

Extension
storage bay

Hitachi Compute Rack 210H User’s Guide

A-0

B-1

B-0

A-1

B-2

Reserve

Replace disk
(Becomes reserved disk)

As the result of standby replacement, the disk A1 and B1 location move to
another disk. In other words, the HDDs constituting a disk array might be
positionally interchanged.

Therefore, in consideration of system management, record the locations of HDDs
each time in case of a failure.

A difference in capacity between the hard disks used in disk arrays A
and B

Depending on the capacity of a reserve disk, a hot spare might not work. The
following hot spare will be applied depending on the capacity of a reserve disk.

This description assumes disk array A < disk array B (A - x < B - x).

 If the reserve disk has the same capacity as B-x:

The reserve disk works as a hot spare either in disk array A or B. If the hot
spare is used in disk array A (A and C are applied to the case where If there

are two or more disk arrays with a RAID level of 1, 5, 6, or 10), an unused

area will exist on the rebuilt HDD because the reserve disk is greater in
capacity than hard disk A-x used in disk array A.

 If the reserve disk has the same capacity as A-x:

The re se rve dis k works a s a hot s p are on l y in dis k a rray A, not in d i sk arr a y B.

No data can be restored on the disk because the reserve disk is smaller in
capacity than the HDD B-x used in disk array B. Therefore, disk array B
remains in degraded mode.

To prevent the above, fit the capacity of a reserve disk to the disk array or
prepare a reserve disk for each disk array. The priority of a reserve disk used in
case of a failure is as follows:

1 A reserve disk having the same capacity as a failed disk

2 A reserve disk with a small device ID, in order of a storage bay number.

3-16 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

Redundancy

This section describes the redundant components of the system unit.

Power supply

Installation of two power supplies on the system unit enables power supply
duplication.

This allows continuous operation without shutting down the system unit if either
of the power supplies fails. Each power supply supports a hot plug. Therefore, a
failed power supply can be replaced without shutting down the system unit.

We recommend connecting two power supplies to different power sources,
respectively, if installed. In case of a failure on one power source, the system
unit can operate without a shutdown, as long as power is still supplied from the
other source.

System fans

The system unit has system fans for internal cooling. Some of these fans are
designed to be redundant.

The system unit can operate without a shutdown even if one of the system fans
fails.

If a failure occurs in one power supply, contact the sales representative
or maintenance personnel.

Replace the failed power supply as soon as possible.

If a system fan failure occurs, contact the sales representative or
maintenance personnel.

Replace the failed system fan as soon as possible.

System Unit Functions 3-17

Hitachi Compute Rack 210H User’s Guide

Wake On LAN

This section describes the Wake On LAN feature.

Overview of the remote power-on

The Wake On LAN function is a function to turn on the power to system unit
through a network. The system unit, if turned off, can be turned through a
remote operation by transmitting special packets from the system unit for the
administrator or from a client.

You can use a remote power-on operation by using the onboard remote
management function only on the Web console.

Support conditions for the Wake On LAN

The Wake On LAN function is supported under the following conditions.

 Supported OS: Windows Server 2008 R2

 Supported LAN devices: Onboard LAN controller 1

Only network interface connector 1 on the rear of the system unit is available.

Network interface connector 1

Figure 3-14: Network interface connector 1

Network interface connector 2, management interface connector, optional
LAN mezzanine and LAN card are not supported.

Onboard LAN controllers (network interfaces) are displayed on the
device manager, as follows:

 Onboard LAN1: PCI bus 6, device 0, function 0
 Onboard LAN2: PCI bus 6, device 0, function 1

3-18 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

Precautions on use of the Wake On LAN

 In the following cases, the Wake On LAN function does not work. Press the

POWER switch of the system unit once to activate the OS. Then, turn off the
power in a normal procedure:

– When you start the system first after connecting the power cable.

– When the previous system end procedure was not normal

– If the POWER switch is pressed to turn off the power before the OS is

activated (during BIOS POST)

– If the power is turned off using the UPS management software,

– If the power is not supplied to the system unit, such as the AC cable is

disconnected or the circuit breaker is tripped, or in case of a power failure.

 If the system is shut down when connected to link partner, the Wake On

LAN-enabled onboard LAN controller 1 is automatically set to 10 Mbps of link
rate. After the OS is activated, the link rate returns normally.

 The system unit does not support Wake On LAN, from the sleep state, hybrid

sleep state, and hibernation state.

System Unit Functions 3-19

Hitachi Compute Rack 210H User’s Guide

Memory RAS

This section describes the memory RAS feature supported by the system unit.

Online spare memory

Online spare memory is a function that can be switched online to spare memory
if a correctable memory error (Correctable Error: 1-bit error) occurs frequently.
This provides preventive maintenance of memory switching before an
uncorrectable memory error (Uncorrectable Error: 2-bit error) occurs.

These are the following conditions for using the online spare memory function:

 Two or more memory boards should be installed per channel.

8 or 12 memory boards (for 4 channels) per processor.

 All memory boards should have the same capacity and same model.

 When two processors are installed, the same memory configuration should be

applied to processor 1 and processor 2.

Figure 3-15: The number of the ranks of the memory board

3-20 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

Online spare memory is set for each channel. One rank of the memory board
installed on each channel becomes spare memory, and the other memory board
rank becomes system memory. A "rank" represents a memory board
configuration. Memory boards include a "single rank" and a "dual rank". Each
memory board operates on a "rank" basis. Therefore, the "dual rank" is
physically a single board but logically operates as two memory boards.

The number of the ranks of the memory board which a system unit supports is as
follows.

Table 3-1: The number of the ranks of the memory board

Product code Memory capacity Number of rank

MJ702GL3-Y /
MJ702GL3-R

MJ704GL3-Y /
MJ704GL3-R

MJ708GL3-Y /
MJ708GL3-R

MJ716GL3-Y /
MJ716GL3-R

2048 MB 1

4096 MB 1

8192 MB 2

16384 MB 2

In case the of a memory error, memory switching is performed on a rank basis.

For instance, on the assumption that a memory board having two rank is
installed on memory slots 1 and 5 (channel 1) of processor 1, and a memory
board of rank 0 in memory slot 1 is set as a spare memory.
If a correctable error occurs frequently on memory board of rank 0 in memory
slot 5, all data in the memory is copied online to memory board of rank 0 in
memory slot 1 which is spare memory. After the completion of copying, the
system unit starts operating by using the memory boards not including the
memory board of rank 0 in memory slot 5.

Figure 3-16: Operation of the online spare memory function

System Unit Functions 3-21

Hitachi Compute Rack 210H User’s Guide

In the case of a memory board having one rank, one memory board becomes
spare memory.

The online spare memory function becomes valid again when you restart the
system unit. At this time, the spare memory is set again. Therefore, replace the
failed memory board before restarting the system unit.

The precautions on the use of online spare memory are as follows:

 The spare memory is set to every channel of each processor.

 To validate the online spare memory function, set Chipset > North Bridge

> Memory Mode to Sparing on the system BIOS setup menu.

 The online spare memory functions in the channel of each processor once.

The online spare memory function does not work then to become invalid even
if a memory fault occurs with other channels of the processor.

 When the online spare memory function is set valid, one rank of a memory

board to be installed on each channel is used as a spare memory. Therefore,
the memory capacity is displayed smaller than the actual one.
On the system BIOS setup menu, confirm Chipset > North Bridge > Total
Memory.
Depending on a memory board installed, the spare memory capacity per
channel is as follows:

Table 3-2: Spare memory capacity

Installed memory boards Spare memory capacity per channel

MJ702GL3-Y /
MJ702GL3-R

MJ704GL3-Y /
MJ704GL3-R

MJ708GL3-Y /
MJ708GL3-R

MJ716GL3-Y /
MJ716GL3-R

2048 MB

4096 MB

4096 MB

8192 MB

 If memory degradation occurs, the online spare memory function becomes

invalid.

 The OS might operate slowly within a range of a few seconds to ten minutes while

the online spare memory function is working to change over to spare memory.

 In case of an uncorrectable memory error (Memory Uncorrectable Error: 2-bit

error and so on), the online spare memory function does not work.

 When the online spare memory function works to change over to spare

memory, the MAINTENANCE LED 2 in front of the system unit is turned on.
See MAINTENANCE LEDs

on page 2-3

 You cannot use the online spare memory function simultaneously with

memory mirroring, lock step, and device tagging.

3-22 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

Memory mirroring

Memory mirroring is memory duplication to continue to operate the system unit
without a shutdown in case of an uncorrectable memory error (Uncorrectable
Error: 2-bit error and so on).

These are the following conditions for using the memory mirroring function:

 Memory boards should be of the same configuration for channels 0 and 1 as

well as channels 2 and 3 of each processor.

 All memory boards should have the same capacity and same model.

 When two processors are installed, the same memory configuration should be

applied to processor 1 and processor 2.

Memory mirroring divides memory boards into a primary mirror depending on
channels installed, and configures two channels in pairs. The relationship among
memory slots, channels, and channel pairs is as follows.

Figure 3-17: The memory pair of memory mirroring

System Unit Functions 3-23

Hitachi Compute Rack 210H User’s Guide

In memory mirroring, a memory read and write are performed as follows:

 A read is performed from either the primary slot or mirror slot.

 A write is performed to both primary and mirror slots in appearance order.

If an uncorrectable memory error occurs on one of the memory boards in the
primary slot, all read and write operations are performed only on the memory
boards in the mirror slot. If an error occurs on one of the memory boards in the
mirror slot, contrarily, all read and write operations are performed only on the
memory boards in the primary slot.

The precautions on use of memory mirroring are as follows:

 To validate the memory mirroring function, set Chipset > North Bridge >

Memory Mode to Mirroring on the system BIOS setup menu.

 When the memory mirroring function is set valid, the half of the memory

boards installed are used as a mirror and thus the actual memory capacity
used becomes half. On the system BIOS setup menu, confirm Chipset >
North Bridge > Total Memory.
The mirror memory slot is displayed as "0 MB" even if memory boards are
installed.

 If memory degradation occurs, the memory mirroring function becomes

invalid.
In this case, the MAINTENANCE LED 2 in front of the system unit is turned on.
See MAINTENANCE LEDs

on page 2-3

 You cannot use the memory mirroring function simultaneously with online

spare memory, lock step, and device tagging.

3-24 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

Lock step

A memory lock step is a function for synchronizing two channels with each other
and handling two memory boards as a single memory board logically. Normal
access of 64-bit data/8-bit ECC is expanded to 128-bit data/16-bit ECC for
operation. This allows enhancement of multi-bit error detection and correcting
functions by Single Device Data Correction (SDDC).

Typically, the memory controller supports x4 SDDC (able to correct a 4-bit DRAM
device failure) and also using the lock step function allows support of x8 SDDC
(able to correct an 8-bit DRAM device failure) as well as detection of two 4-bit
DRAM device failures.

These are the following conditions for using the lock step function:

 Memory boards should be of the same configuration for channels 0 and 1 as

 All memory boards should have the same capacity and same model.

 When two processors are installed, the same memory configuration should be

well as channels 2 and 3 of each processor.

applied to processor 1 and processor 2.

SDDC is also referred to as advanced ECC, which assigns the data of each DRAM
chip to individual ECC controllers so that a single DRAM chip does not affect one
or more bits of data to be processed on an ECC basis.

If the entire one DRAM chip fails, an error occurs on multiple bits. Each ECC
controller can handle such an error as a 1-bit error for error correction.

The x4 SDDC functions image is as follows.

Figure 3-18: The function of x4 SDDC

System Unit Functions 3-25

Hitachi Compute Rack 210H User’s Guide

The precautions on use of lock step are as follows:

 To validate the lock step function, set Chipset > North Bridge > Memory

Mode to Lock Step on the system BIOS setup menu.

 Interleave between channels is not performed, so the memory access

performance becomes lower than independent mode.

 In case of a correctable memory error, such as a 1-bit error or single DRAM

chip error, automatic correction is continued. At this time, the ERROR LED
does not turned on.

 If an uncorrectable memory error occurs, ECC-based error correction

becomes unavailable and thus the system is shut down.

 You cannot use the lock step function simultaneously with online spare

memory, memory mirroring, and device tagging.

Device tagging

Memory device tagging is a function for providing redundancy on a DRAM chip
basis so that the system can operate without a shutdown even if one DRAM chip
on a memory board breaks down.

Normally, memory generates an ECC from data and stores on each DRAM chip
separately from data.

If the entire single DRAM chip fails, the data stored on the failed DRAM chip is
calculated according to the data and ECC stored on other DRAM chips in order to
rewrite the data on the DRAM chip storing ECC. This can avoid an uncorrectable
memory error caused by a multi-bit error.

Data Data Data Data Data Data Data Data ECC

Isolate

Data Data Data Data Data Data Data Data

Figure 3-19: The function of device tagging

3-26 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

The precautions on use of device tagging are as follows:

 To validate the device tagging function, set Chipset > North Bridge >

Device Tagging to Enabled on the system BIOS setup menu.

 The device tagging operates in independent mode to interleave between

channels.

 In case of a correctable memory error, such as a 1-bit error or single DRAM

chip error, automatic correction is continued. At this time, the ERROR LED
does not turned on.

 For the device tagging function, only one memory board is used for operation

per channel. If DRAM chips on multiple memory boards in one channel fail,
the device tagging function does not work and the system is shut down.

 If an uncorrectable memory error occurs, ECC-based error correction

becomes unavailable and thus the system is shut down.

 You cannot use the device tagging function simultaneously with online spare

memory, memory mirroring, and lock step.

System Unit Functions 3-27

Hitachi Compute Rack 210H User’s Guide

LAN extended functions

This section describes the extended functions available with the standard
onboard LAN of the system unit, an optional LAN mezzanine and a LAN card.

The network adapter, such as an onboard LAN or optional LAN of the system unit,
can use the LAN extended functions such as network redundancy, load
distribution, and confidential security.

The following types of LAN extended functions are available:

 LAN device redundancy function

Provides network redundancy and fault tolerance by combining two network
adapters. In case of network connection failure, the failed network adapter is
changed over to the backup adapter automatically to shift processing.

 LAN device load distribution function

Provides expanded band width of a network by combining two network
adapters. This function distributes the traffic load of transmit data to each
adapter.

 Switch redundancy function

Provides high reliability of a network by combining two network adapter with
two switching hubs (current one and standby) supporting STP (IEEE802.1d)
for the purpose of redundancy.

 Tag VLAN (IEEE802.1q VLAN)

Provides logical segmentation by identify a VLAN group. VLAN group is
identified according to an ID specified on a tag in a packet.

These expansion functions are set from the LAN utility "Brodcom Advanced
Control Suite 4" (BACS4).

For details on how to use the LAN utility, see Windows Server 2008 R2 LAN
Extended Functions User's Guide.

3-28 System Unit Functions

Hitachi Compute Rack 210H User’s Guide

4

Operational precautions

This chapter describes operational precautions.



Precautions on LAN controller

Operational precautions 4-1

Hitachi Compute Rack 210H User’s Guide

Precautions on LAN controller

This section describes precautions when using the standard onboard LAN of the
system unit, and an optional LAN mezzanine and LAN card.

TCP Checksum Offload function

The standard onboard LAN of the system unit, and LAN mezzanine
(CN7M0T-Y/CN7M0T-R) and LAN card are equipped with a function for their LAN
controller to perform TCP/IP protocol checksum calculations. However, we
recommend not to use this function but to use the standard TCP/IP checksum
calculation function of the OS.

If the calculation by the OS is set up, the integrity of packet data received from
a network will be checked in the final stage of protocol processing of the OS, thus
enabling construction of a more reliable system.

If you use the LAN mezzanine (CN7M1S-Y/CN7M1S-R), do not change
the setting of the LAN mezzanine (CN7M1S-Y/CN7M1S-R).
The network performance will be degraded.

4-2 Operational precautions

Hitachi Compute Rack 210H User’s Guide

Setup method in Windows Server 2008 R2

1. Double-click Control Panel > Device Manager.

2. Open the Details tab page of the properties windows of each network
adapter in Network adapters.

3. Change the settings according to the following table if the setup items are
displayed:

Table 4-1: Settings of network adapter properties

settings Item

IPv4 Checksum Offload

TCP/UDP Checksum Offload

(lpv4)

TCP/UDP Checksum Offload

(lpv6)

Large Send Offload (IPv4)

Large Send Offload v2(IPv4)

Large Send Offload v2(IPv6)

Receive Side Scaling

Broadcom Advanced

Control Suite 4

not installed

Rx & Tx Enabled → None Rx & Tx Enabled → None

Rx & Tx Enabled → None Rx & Tx Enabled → None

Rx & Tx Enabled → None Rx & Tx Enabled → None

Enable → Disable Enable → Disable

Enable → Disable Enable → Disable

Enable → Disable Enable → Disable

Enable → Disable Enable → Disable

Broadcom Advanced

Control Suite 4

installed

4. After setting all items, click OK and restart the OS.

Operational precautions 4-3

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4-4 Operational precautions

Hitachi Compute Rack 210H User’s Guide

5

Maintenance and service parts

This chapter describes daily maintenance procedures, service parts and
consumables.



Daily maintenance items

 Cleaning

 Service parts

 Consumables

Maintenance and service parts 5-1

Hitachi Compute Rack 210H User’s Guide

Daily maintenance items

Both system unit and internal devices should be maintained periodically.
Conduct daily maintenance according to the table below. If either system unit or
internal devices are found abnormal during daily maintenance, contact the sales
representative or maintenance personnel.

For optional devices, see their individual manuals.

Table 5-1: Maintenance items

Location Cleaning or check item Cleaning or check

Clean Cleanup dust from the air vents 6 months*

cycle

System unit

Internal DVD-ROM Clean Clean pickup lens with cleaning kits.

* If the system unit is used in a dusty environment, clean the unit once every month.

Cleaning

This section describes how to clean the system unit and its standard devices. For
the cleaning of other optional devices, see their individual manuals.

System unit

For the following procedure, see Hitachi Compute Rack 210H Getting Started
Guide together.

NOTICE

Check

Check ERROR and MAINTENANCE LEDs
on the operational panel.

Check fans for abnormal noise 6 months

6 months

In case of a media read
error

 Turn off the system unit and disconnect the power cable whenever

you clean the unit. Otherwise, a component failure can occur.

 Keep the system unit free of water. Do not wipe the unit with a wet

cloth. Otherwise, a component failure can occur.

1. Power off the system unit.

2. Disconnect all the power cables from the outlet or the rear side of system
unit.

3. Disconnect the interface cable from the system unit.

5-2 Maintenance and service parts

Hitachi Compute Rack 210H User’s Guide

4. Clean dust off the following vents of the system unit with a dry cloth or
vacuum cleaner.

Front side

Front side with Front bezel

Cleaning areas

Rear side

Figure 5-1: Cleanup location of the system unit

5. Before connection, remove dust from the connectors of interface cable and
system unit using a dry cloth.

6. Wipe dust off the plug of the power cable and connect the cable to an outlet
and system unit.

Internal DVD-ROM

Clean the pickup lens in case of a media read error. For purchasing a cleaning kit,
contact the sales representative. For the cleaning method, obey the cleaning kit
usage.

Maintenance and service parts 5-3

Hitachi Compute Rack 210H User’s Guide

Service parts

The system unit is designed to have an estimated life of five years (when running
24 hours a day/30 days a month). Service parts that deteriorate and wear out
during use are contained in the parts of the system unit.

NOTICE

Some of service parts use an aluminum solid electrolytic capacitor with
a service life. An attempt to use such parts beyond their life will leak or
exhaust their electrolytic solution, thus causing smoking or bad smell.
To prevent these risks, replace service parts whenever exceeding their
design life.

Major service parts are as follows:

Table 5-2: Service parts

Part name Product code Remarks

Internal DVD-ROM (Standard of system unit) *1

Notes:

(*1) If the drive is used under the installation environment provided in Hitachi Compute Blade

2000/1000/320 and Hitachi Compute Rack 220/210 Site Planning Guide, the energization life

time is approximately 13,000 hours. If the drive is used for 24 hours a day and for 30 days a
month, its lifetime will be approximately 1.5 years. If the drive is used beyond the above
environmental conditions, a failure might be caused or its life might be shortened.

Lifetime is a rough estimate, which does not assure that those devices
will not fail within this period of time.

Consumables

For the consumables, contact the sales representative.

NOTICE

5-4 Maintenance and service parts

Use the specified consumables, such as data media and cleaning
media. Otherwise, product reliability will deteriorate and a risk of
failure increases.

Hitachi Compute Rack 210H User’s Guide

6

Troubleshooting

This chapter describes trouble shooting of the system unit.



Solving problems

 Corrective actions for error

Troubleshooting 6-1

Hitachi Compute Rack 210H User’s Guide

Solving problems

This section describes how take measures against various cases.

Table 6-1: Solving problems

No Description Point to be checked and action to be taken

1 Initial failure or missing part

Some users do not know how to
use equipment or have

2

questions about manual's
descriptions.

System unit does not work

3

normally or an error occurs.

System unit infected with a

4

computer virus.

Want to change the disk array or

5

know the operation of disk array

6 Want to extend a function.

7 Others

● Check the system unit for missing parts or damage
against the accessories checklist.

● After delivery, check the operation of system unit for
initial failures.

● If initial failures or missing parts are found, contact the
sales representative.

● See the documents of devices.

● For any questions on a manual's description, contact

the sales representative.

● See Corrective actions for error on page 6-3.

● Disconnect the network cable and follows the

instructions mentioned in the manual attached to your
anti-virus software.

● Start setup with the RAID BIOS "MegaRAID WebBIOS".

For details on the RAID BIOS, see Hitachi Compute

Rack 210H/220H BIOS Guide.

● Also, see MegaRAID Storage Manage Instruction
Manual.

● For addition of another optional device or software,
contact the sales representative.

● For any other questions, contact the sales
representative.

6-2 Troubleshooting

Hitachi Compute Rack 210H User’s Guide

Corrective actions for error

This section describes how to take action depending on the symptom of an error
or a system unit failure.

Specific problems and corrective actions

This section lists problems that cause abnormal operation of the system unit or
peripheral, and the actions to be taken.
If the system does not recover from a failure even when the following actions are
taken, contact the sales representative or maintenance personnel.

Table 6-2: Problems and actions

No Problems Point to be checked and action to be taken

The POWER LED does not light.

1

(The power is not turned on).

Abnormal heat or smoke, or a

2

short circuit occurred.

An error message appears at the

3

start time.

The ERROR LED on the system

4

unit lights.

Memory capacity is smaller than

5

the actual one.

Internal device does not work

6

(HDD, DVD-ROM).

The keyboard is out of order,
some of the keys are unusable,

7

or the mouse does not work
normally.

8 Serial port does not operate.

● Check if the AC cable is connected normally. See

Hitachi Compute Rack 210H Getting Started Guide.

● Check if the POWER switch is set to ON.

● Turn off the power immediately and disconnect all the

AC cables.
Contact the sales representative or maintenance
personnel.

● See When an error message appears

● See Errors during use

● Check if memory is installed normally. See Hitachi

Compute Rack 210H CRU Replacement Guide.

● The available memory capacity might decrease due to

the effect of a memory hole.

● Check if the online spare memory function or memory

mirroring function has been set valid. An attempt to
use this function uses part or the half of memory, thus
reducing the capacity. See Hitachi Compute Rack
210H/220H BIOS Guide.

● Check if internal devices are installed normally. See

Hitachi Compute Rack 210H CRU Replacement Guide.

● Check if the system BIOS or RAID BIOS is set up

normally. See Hitachi Compute Rack 210H/220H BIOS
Guide.

● Check if the applicable drive has been installed.

● Check if the keyboard cable is connected normally or if

the mouse cable is connected normally. See Hitachi
Compute Rack 210H Getting Started Guide.

● Check if the system BIOS is set up normally. See

Hitachi Compute Rack 210H/220H BIOS Guide.

on page 6-16.

on page 6-5.

Troubleshooting 6-3

Hitachi Compute Rack 210H User’s Guide

No Problems Point to be checked and action to be taken

● Check if the display's power switch is turned on, if the
display's contrast or brightness control volume is

Nothing appears on the display,
or garbage appears on the

9

screen.

10 Abnormal window appears.

11 Only the mouse cursor appears.

Anything appearing on the

12

display is unreadable or
distorted.

Changed setup on the system

13

BIOS cause abnormal operation.

Use of other company's product

14

causes abnormal operation.

adjusted properly, or if the power cable is normally
connected to both display and outlet.

● Check if the display cable is normally connected to both
display and system unit. See Hitachi Compute Rack
210H Getting Started Guide.

● Check if precision equipment is installed around the
system unit.

● Check if the system unit or display positions changed
during its use. Geomagnetic effects or color shading
might occur on the display. Turn off the power once
and leave at least 30 minutes before restart.

● Check if the system unit is too close to the display.
Keep the system unit properly distant from the display
or increase the refresh rate setting.

● Any cause cannot be identified.
Contact the sale representative, or maintenance
personnel.

● Check if the refresh rate is set beyond the display's
specification.

● Return the settings on the system BIOS to factory
defaults. See Hitachi Compute Rack 210H/220H BIOS
Guide.

● Abnormal operation can be attributed to the other
company's product. Ask the product manufacturer.

6-4 Troubleshooting

Hitachi Compute Rack 210H User’s Guide

When an error message appears

This section describes how to take action if an error message appears.

When a system BIOS error message appears

If an error is detected during POST, an error message appears on the display.
Take action according to the description mentioned in the "Action" of the table
below. If a message not described in the table should appear, write down the
message and contact the sales representative or maintenance personnel.

Table 6-3: System BIOS error messages during POST

Error

Error message Description Action

code

2004

2005

2008 CPU1 BIST Error is found A processor error has been detected. (*1)

2009 CPU2 BIST Error is found A processor error has been detected. (*1)

2710 FRU checksum bad A BMC error has been detected. (*1)

2714

2716 BMC is not ready A BMC error has been detected. (*1)

2717 Power supply configuration error

3B01 System battery is dead A battery error has been detected. (*1)

3B02 Check date and time settings A system clock error has been detected. (*2)

－

－

－

－

－

－

－

－

－

－

－

2630 ME Firmware has stopped A firmware error has been detected. (*1)

Last power event was caused by

CPU1 Thermal Trip

Last power event was caused by

CPU2 Thermal Trip

Cannot set BMC network
configuration

BMC hard fail A BMC error has been detected. (*1)

BMC soft fail A BMC error has been detected. (*1)

BMC communication error A BMC error has been detected. (*1)

Cannot access SDR Repository A BMC error has been detected. (*1)

Cannot access BMC FRU device A BMC error has been detected. (*1)

IPMB Signal lines do not respond A BMC error has been detected. (*1)

SDR Repository empty A BMC error has been detected. (*1)

Internal Use Area of BMC FRU

corrupted

Controller updated 'boot block'
firmware corrupted

Controller operational firmware
corrupted

BMC is in force update mode A BMC error has been detected. (*1)

A processor error has been detected. (*1)

A processor error has been detected. (*1)

A BMC error has been detected. (*1)

A power supply configuration error has
been detected.

A BMC error has been detected. (*1)

A BMC error has been detected. (*1)

A BMC error has been detected. (*1)

(*1)

Troubleshooting 6-5

Hitachi Compute Rack 210H User’s Guide

Error

Error message Description Action

code

2631 BIOS and ME are not compatible A firmware error has been detected. (*1)

2632 HECI is disabled A HECI error has been detected. (*1)

2633 ME Status is Invalid A firmware error has been detected. (*1)

2634 Cannot initialize HECI A HECI error has been detected. (*1)

2250

2251

2252

Notes:

(*1) Contact the sales representative or maintenance personnel.

(*2) Set correct information on the system BIOS setup menu.

(*3) Check if the memory boards are of correct configuration or installed normally.

Cannot enable Memory Mirroring
Mode

Cannot enable Memory Lock Step
Mode

Cannot enable Memory Sparing
Mode

If an error recurs, contact the sales representative or maintenance personnel.

If an error recurs, contact the sales representative or maintenance personnel.

When a RAID BIOS error message appears

A memory error has been detected. (*3)

A memory error has been detected. (*3)

A memory error has been detected. (*3)

A RAID BIOS "MegaRAID WebBIOS" message might appear. Take action
according to the description under "Action" in the table below.

Table 6-4: RAID BIOS error messages during POST

Error message Description Action

Cache data was lost because of an
unexpected power-off or reboot during a
write operation, but the adapter has
recovered. This could be because of memory
problems, bad battery, or you may not have a
battery installed.

Press any key to continue or press C to load
the configuration utility.

The memory/battery problems were
detected. The adapter was recovered, but
cached data was lost. Press any key to
continue or press C to load the configuration
utility.

Cache data was lost, but the controller has
recovered.

This could be due to the fact that your
controller had protected cache after an
unexpected power loss and your system was
without power longer than the battery
backup time.

Press any key to continue or press C to load
the configuration utility.

If this message appears even though an
illegal power shutdown or reboot is not
conducted during write operation,
contact the sales representative, or call
maintenance personnel.

If this message appears even though an
illegal power shutdown or reboot is not
conducted during write operation,
contact the sales representative, or call
maintenance personnel.

If this message appears even though an
illegal power shutdown or reboot is not
conducted during write operation,
contact the sales representative, or call
maintenance personnel.

(*1)

(*1)

(*1)

6-6 Troubleshooting

Hitachi Compute Rack 210H User’s Guide

Error message Description Action

The cache contains dirty data, but some VDs
are missing.

The cached data cannot be written to the
disk. If this is an unexpected error, then
power off your system and check your cables
to ensure all disks are present. If you
continue, the data in the cache will be
permanently discarded.

Press X to acknowledge and permanently
destroy the cached data.

Foreign configurations found on adapter.
Press any key to continue or press C to load

the configuration utility.

The battery hardware is missing or
malfunctioning, the battery is unplugged, or
the battery could be fully discharged.

If you continue to boot the system, the
battery-backed cache will not function.

If the battery is connected and has been
allowed to charge for 30 minutes and if this
message continues to appear, contact
technical support for assistance.

Press D to disable this warning (if your
controller does not have a battery).

The battery hardware is missing or
malfunctioning, the battery is unplugged, or
the battery could be fully discharged.

If you continue to boot the system, the
battery-backed cache will not function.

If the battery is connected and has been
allowed to charge for 30 minutes and if this
message continues to appear, contact
technical support for assistance.

Some configured disks have been removed
from your system, or are no longer
accessible. Check your Cables and also
ensure all disks are present.

Press any key to continue or press C to load
the Configuration utility.

The following VDs have missing disks:
・ If you proceed (or load the configuration

utility), these VDs will be marked
OFFLINE and will be inaccessible.

・ Check your cables and ensure all disks are

Present.

Press any key to continue or press C to load
the configuration utility.

A discovery error has occurred.
Power-cycle the system and all the

enclosures attached to this system.

If this message appears even though an
illegal power shutdown or reboot is not
conducted during write operation,
contact the sales representative, or call
maintenance personnel.

Some HDDs found in the disk array
controller do not match the disk array
configuration information.

Cache backup module information is not
set correctly. Press D while this message
is appearing.

Cache backup module information is not
set correctly. Press D while this message
is appearing.

Some HDDs with the disk array
configuration information have been
removed.

The disk array is set to OFFLINE because
some HDDs have been removed.

The disk array or HDDs were not
recognized correctly.

(*1)

(*2)

(*3)

(*3)

(*4)

(*4)

(*1)

Troubleshooting 6-7

Hitachi Compute Rack 210H User’s Guide

Error message Description Action

The following VDs are missing:
If you proceed (or load the configuration

utility), these VDs will be removed from your
configuration.

If you wish to use them at a later time, they
will have to be imported.

If you decide these VDs should be present,
power off your system and check your cables
to ensure all disks are present.

Press any key to continue or press C to load
the configuration utility.

The following VDs are missing complete
spans. If you proceed (or load the
configuration utility), these VDs will be
removed from your configuration and the
remaining drives marked as foreign.

If you wish to use them at a later time,
restore the missing spans and use foreign
import to recover the VDs.

If you believe these VDs should be present,
please power off your system and check your
cables to ensure all disks are present.

Press any key to continue, or 'C' to load the
configuration utility.

All of the disks from your previous
configuration are gone.

If this is an unexpected message, then
power off your system and check your cables
to ensure all disks are present.

Press any key to continue or press C to load
the configuration utility.

Your battery is either charging, bad, or
missing and you have VDs configured for
write-back mode. Because the battery is not
currently usable, these VDs will actually run
in the write-through mode until the battery
is fully charged or replaced if it is bad or
missing.

Press any key to continue.

Multibit ECC errors were detected on the
RAID controller.

The DIMM on the controller needs
replacement.

Contact technical support to resolve this
issue.

If you continue, data corruption can occur.
Press X to continue or else power off the

system and replace the DIMM module and
reboot.

If you have replaced the DIMM press X to
continue.

Some of the disk array configurations
have been removed.

Some of the disk array configurations
have been removed.

All the HDDs with the disk array
configuration information have been
removed.

Cache backup module information is
illegal.

A cache memory error has occurred in
the disk array controller.

(*4)

(*4)

(*4)

(*1)

(*1)

6-8 Troubleshooting

Hitachi Compute Rack 210H User’s Guide

Error message Description Action

Single-bit ECC errors were detected during
the previous boot of the RAID controller.

The DIMM on the controller needs
replacement. Contact technical support to
resolve this issue. Press X to continue or else
power off the system and replace the DIMM
module and reboot.

If you have replaced the DIMM press X to
continue.

Single-bit overflow ECC errors were detected
during the previous boot of the RAID
controller.

The DIMM on the controller needs
replacement. Contact technical support to
resolve this issue. If you continue, data
corruption can occur.

Press X to continue or else power off the
system and replace the DIMM module and
reboot.

If you have replaced the DIMM press X to
continue.

Single-bit overflow ECC errors were detected
during the previous boot of the controller.

The DIMM on the controller needs
replacement. If you continue, data
corruption can occur.

Press X to continue or else power off the
system and replace the DIMM module and
reboot.

If you have replaced the DIMM press X to
continue.

Multibit ECC errors were detected on the
RAIDcontroller.

If you continue, data corruption can occur.
Contact technical support to resolve this

issue.
Press X to continue or else power off the

system, replace the controller and reboot.

Multiple Single-bit ECC errors were detected
during the previous boot of the controller.

The DIMM on the controller needs
replacement. If you continue, data
corruption can occur.

Press X to continue or else power off the
system, replace the DIMM module, and
reboot.

If you have replaced the DIMM, press X to
continue.

Single-bit overflow ECC errors were detected
on the RAID controller.

If you continue, data corruption can occur.
Contact technical support to resolve this

issue. Press X to continue or else power off
the system, replace the controller and
reboot.

A cache memory error has occurred in
the disk array controller.

A cache memory error has occurred in
the disk array controller.

A cache memory error has occurred in
the disk array controller.

A cache memory error has occurred in
the disk array controller.

A cache memory error has occurred in
the disk array controller.

A cache memory error has occurred in
the disk array controller.

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

Troubleshooting 6-9

Hitachi Compute Rack 210H User’s Guide

Error message Description Action

Memory Error. Please check the SDRAM
connection. If problems persist contact Tech
Support.

Memory Error. Detected Unsupported RAID
Controller Memory.

Contact Tech support.

Unrecoverable Error. Please check the
SDRAMconnection.

If problems persist contact Tech Support.

This is a TEST message.
Press any key to ignore it, or wait 5 seconds.
No further action is required.
Press any key to continue, or C to load the

configuration utility.

This firmware is an ALPHA version.
It has not completed all validation.

This firmware is a BETA version.
It has not completed all validation.

This firmware is a TEST version.
It has not completed any validation.

The firmware version inconsistency was
detected. The adapter was recovered, but
cached data was lost.

Press any key to continue or press C to load
the configuration utility.

Firmware Failed Validation. Adapter needs to
be refreshed.

The most recent configuration command
could not be committed and must be retried.

Press any key to continue, or press C to load
the configuration utility.

Previous configuration cleared or missing.
Importing configuration created on X/Y
X:Y

Press any key to continue or press C to load
the configuration utility.

An enclosure was found that contains both
SAS and SATA drives, but this controller does
not allow mixed drive types in a single
enclosure.

Correct the problem and restart your system.
Press any key to continue or press C to load

the configuration utility.

SAS drives were detected, but this controller
does not support SAS drives.

Remove the SAS drives and restart your
system.

Press any key to continue or press C to load
the configuration utility.

A cache memory error has occurred in
the disk array controller.

A cache memory error has occurred in
the disk array controller.

A cache memory error has occurred in
the disk array controller.

Test message (*1)

The firmware is of alpha version. (*1)

The firmware is of beta version. (*1)

The firmware is of test version. (*1)

Firmware version inconsistency has
been detected.

Firmware version inconsistency has
been detected.

The disk array configuration information
has been cleared or missing.

The disk array configuration information
has been cleared or missing.

The disk array controller is working with
illegal parameters.

The disk array controller is working with
illegal parameters.

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

6-10 Troubleshooting

Hitachi Compute Rack 210H User’s Guide

Error message Description Action

SATA drives were detected, but this
controller does not support SATA drives.

Remove the SATA drives, and restart your
system. Press any key to continue or press C
to load the configuration utility.

Raid Key Missing.
Please check the Raid Key connection.
If problems persist contact Tech Support.

Raid Key Authentication Error.
Please check the RAID Key installed for this

solution.
If problems persist, contact Tech Support.

Raid Key OEM Authentication Error.
Install the correct RAID key for this System.
If problems persist contact Tech Support.

There are more enclosures connected to the
port than what is allowed for a single SAS
port.

Remove the extra enclosures, and then
restart your system.

Invalid SAS topology detected.
Check your cable configurations, repair the

problem, and restart your system.

Invalid AS Address present in SBR. Contact
your system support.

Press any key to continue with the default
SAS address.

Invalid SAS Address present in MFC data.
Program the valid SAS Address, and restart
your system.

Invalid memory configuration detected.
Contact your system support.

System has halted.

Entering the configuration utility in this state
will result in drive configuration changes.

Press Y to continue loading the configuration
utility or power off your system and check
your cables to ensure that all the disks are
present, and then restart.

External Enclosure does not support in
controller's Direct mapping mode.

Contact your system support.
System has halted due to unsupported

configuration.

Expander Detected in controller with Direct
mapping mode.

Reconfiguring automatically to persistent
mapping mode.

Automatic reboot would happen in 10
seconds.

The disk array controller is working with
illegal parameters.

The disk array controller is working with
illegal parameters.

The disk array controller is working with
illegal parameters.

The disk array controller is working with
illegal parameters.

An illegal enclosure has been detected. (*1)

An invalid SAS topology has been
detected.

An invalid SAS address exists. (*1)

An invalid SAS address exists. (*1)

Invalid memory configuration
information has been detected.

The HDD configuration information has
been changed.

Illegal information has been detected
from the enclosure.

An unsupported device (expander) has
been detected.

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

Troubleshooting 6-11

Hitachi Compute Rack 210H User’s Guide

Error message Description Action

The controller's I/O processor has a fault
that can potentially cause data corruption.

Your controller needs replacement. Contact
your system support. Press Y to
acknowledge.

Number of disks exceeded the maximum
supported count of X disks.

Remove the extra drives and reboot the
system to avoid losing data.

Press Y to continue with extra drives.

Number of devices exceeded the maximum
limit of devices per quad.

Remove the extra drives and reboot the
system to avoid losing data.

System has halted due to unsupported
configuration.

Drive security is enabled on this controller
and a pass phrase is required.

Please enter the pass phrase.

Invalid pass phrase.
Please enter the pass phrase.

There was a drive security key error.
All secure drives will be marked as foreign.
Press any key to continue, or C to load the

configuration utility.

Invalid pass phrase. If you continue, there
will be a drive security key error and all
secure configurations will be marked as
foreign.

Reboot the machine to retry the pass phrase
or press any key to continue.

Unable to communicate to EKMS.
If you continue, there will be a drive security

key error and all secure configurations will
be marked as foreign.

Please check connection with the EKMS,
reboot the machine to retry the EKMS or
press any key to continue.

Unable to change security to EKMS was not
able to communicate to EKMS.

If you continue, the drive security will
remain to existing security mode.

Please check connection with the EKMS,
reboot the machine to retry the EKMS or
press any key to continue.

DKM existing key request failed; existing
secure configurations will be labeled foreign
and will not be accessible.

Reboot server to retry.

DKM new key request failed; controller
security mode transition was not successful.

Reboot server to retry request, or press any
key to continue.

The disk array controller's processor is
illegal.

An illegal HDD has been detected. (*1)

An illegal HDD has been detected. (*1)

The HDD security function is not
supported.

The HDD security function is not
supported.

The HDD security function is not
supported.

The HDD security function is not
supported.

The HDD security function is not
supported.

The HDD security function is not
supported.

The HDD security function is not
supported.

The HDD security function is not
supported.

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

(*1)

6-12 Troubleshooting

Hitachi Compute Rack 210H User’s Guide

Error message Description Action

The native configuration is no longer
supported by the current controller settings.

Please ensure that correct controller,
iButton or key vault is being used.

If you continue, the configuration will be
marked foreign and part of it may be
imported if possible.

Press any key to continue.

The battery is currently discharged or
disconnected. Verify the connection and
allow 30 minutes for charging.

If the battery is properly connected and it
has not returned to operational state after
30 minutes of charging, contact technical
support for additional assistance.

Press D to disable this warning (if your
controller does not have a battery).

The battery is currently discharged or
disconnected. VDs configured in write-back
mode will run in write-through mode to
protect your data, and will return to
write-back policy when the battery is
operational.

If VDs have not returned to write-back mode
after 30 minutes of charging then contact
technical support for additional assistance.

The following VD is affected: X.

Press any key to continue.

Two BBUs are connected to the adapter.

This is not a supported configuration.
Battery and caching operations are disabled.

Remove one BBU and reboot to restore
battery and caching operations.

If dirty cache is lost in this boot, that could
have been because of dual battery presence.

Firmware did not find valid NVDATA image.
Program valid NVDATA image and restart
your system.

Press any key to continue.

IR to MR Migration failed.

Press any key to continue with MR defined
NVDATA values.

There are offline or missing virtual drives
with preserved cache.

Check the cables and ensure that all drives
are present. Press any key to enter the
configuration utility.

There are offline or missing virtual drives
with preserved cache.

Check the cables and ensure that all drives
are present.

The original configuration information is
not supported for setup of the disk array
controller.

The cache backup module information is
illegal.

The cache backup module information is
illegal.

The cache backup module information is
illegal.

Firmware did not find valid NVDATA
image. Program valid NVDATA image
and restart your system.

Press any key to continue.

Migration is not supported. (*1)

No logical drive is found. (*1)

No logical drive is found. (*1)

(*1)

(*1)

(*1)

(*1)

(*1)

Troubleshooting 6-13

Hitachi Compute Rack 210H User’s Guide

Error message Description Action

Incompatible secondary iButton present!

Please insert the correct iButton and restart
the system.

Press any key to continue but OEM-specific
features will not be upgraded.

Upgrade Key Missing!

An upgrade key was present on a previous
power cycle, but it is not connected.

This can result in inaccessible data unless it
is addressed.

Reattach the upgrade key and reboot.

Serial Boot ROM(SBR) device is corrupt or
bad. Please contact Tech Support.

Notes:

(*1) Contact the sales representative or maintenance personnel.

(*2) Set correct information on the RAID BIOS "MegaRAID WebBIOS".

(*3) If the system does not recover from the problem, contact the sales representative or maintenance

personnel.

(*4) If this message appears with the device installed normally, contact the sales representative or

maintenance personnel.

iButton is illegal. (*1)

An upgrade key is not supported. (*1)

Serial Boot ROM (SBR) device
malfunction

(*1)

6-14 Troubleshooting

Hitachi Compute Rack 210H User’s Guide

Errors at the time of boot from HDD

The following messages might appear if the OS fails to boot the system unit after
POST during system startup:

 Insert bootable media in the appropriate drive

 Missing OS

 OS not found

If the above messages appear, verify the setup of the system BIOS or RAID BIOS.
See Hitachi Compute Rack 210H/220H BIOS Guide.

If the system does not recover, the boot information storage area of the HDD
might be destroyed. Re-install the OS.

If the OS cannot be booted after re-installation, replace the HDD. In this case,
contact the sales representative or maintenance personnel.

Troubleshooting 6-15

Hitachi Compute Rack 210H User’s Guide

Errors during use

This section describes how to handle an error during system use.

Table 6-5: Errors during use

Error symptom Description Measures

ERROR LED lights*

ERROR LED lights*
+ HDD status LED

lights amber

ERROR LED lights *
+ Power supply LED

lights amber

Power supply LED
blinks amber

* When the ERROR LED lights, the MAINTENANCE LED's event code indicator denotes what hardware an

error has occurred in. See MAINTENANCE LEDs

Abnormal temperature inside the
system unit.
Alternately, a failure has occurred in
the hardware such as fans or the
mother board inside the system unit.

A failure has occurred on the internal
HDD.

A power supply failure has occurred.

A power supply is warning status.

on page 2-3.

Review the ambient temperature
range of the system unit and make
an adjustment so as to keep a
temperature within the allowable
range.

Remove dirt from the vent at the
front and rear of the system unit in
order to improve emissions.

If the ERROR LED is still lit, contact
the sales representative or
maintenance personnel.

Replace the HDD.

Contact the sales representative or
maintenance personnel.

Replace the power supply.

Contact the sales representative or
maintenance personnel.

Review the ambient temperature
range of the system unit and make
an adjustment so as to keep a
temperature within the allowable
range.

Remove dirt from the vent at the
front and rear of the system unit in
order to improve emissions.

If the power supply LED is still blinks
amber, contact the sales
representative or maintenance
personnel.

6-16 Troubleshooting

Hitachi Compute Rack 210H User’s Guide

Acronyms and Abbreviations

BMC Base Management Controller

BSMI Bureau of Standards, Metrology and Inspection

CD Compact Disc

DVD Digital Versatile/Video Disc

FCC Federal Communications Commission

HDD Hard Disk Drive

ID Identity Document

IP Internet Protocol

LAN Local Area Network

OS Operating System

PC Personal Computer

POST Power On Self Test

TPM Trusted Platform Module

URL Uniform Resource Locator

USB Universal Serial Bus

UTP Unshielded Twist Pair

WAN Wide Area Network

WEEE Waste Electrical and Electronic Equipment

Acronyms and Abbreviations 1

Hitachi Compute Rack 210H User’s Guide

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2 Acronyms and Abbreviations

Hitachi Compute Rack 210H User’s Guide

Index

Index Index-1

Hitachi Compute Rack 210H User’s Guide

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Index-2 Index

Hitachi Compute Rack 210H User’s Guide

Hitachi Compute Rack 210H User’s Guide