Hitachi Hyper Scale-Out Montageanleitung

MK-94HSP006-03

Hyper Scale-Out Platform

Maintaining and Troubleshooting

1.2

Hyper Scale-Out Platform Maintaining and Troubleshooting

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Contents iii

Hyper Scale-Out Platform Maintaining and Troubleshooting

Contents

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

Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Product version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Release notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Conventions for storage capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vii

Accessing product documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vii

Getting help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vii

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

1 Accessing the health of an HSP cluster . . . . . . . . . . . . . . . . . . . . . . 1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Visually monitoring cluster node health. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Monitoring system drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Monitoring data drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Monitoring alert conditions using the management interfaces . . . . . . . . . . . . . . . 4

Using the Management Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Using the Command Line Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Using the Management API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

HTTP request syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

iv Contents

Hyper Scale-Out Platform Maintaining and Troubleshooting

Monitoring the run state of HSP resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Adding and replacing hardware components . . . . . . . . . . . . . . . . . 9

Increasing storage capacity by adding nodes . . . . . . . . . . . . . . . . . . . . . . . . . 11

Step 1: Installing the outer rails on the rack . . . . . . . . . . . . . . . . . . . . . . . 11

Step 2: Installing the node on the rack . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Step 3: Cabling the nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Step 4: Connecting the power cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Step 5: Power on the nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Replacing a failed node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Step 1: Removing the failed node from the rack . . . . . . . . . . . . . . . . . . . . 18

Step 2: Installing the replacement node . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Replacing a failed power supply on a node . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Step 1: Put the node maintenance mode, then shut down the node . . . . . . 19

Step 2: Remove and replace the power supply . . . . . . . . . . . . . . . . . . . . . 20

Step 3: Take the node out of maintenance mode. . . . . . . . . . . . . . . . . . . . 21

Replacing one or more failed disks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Hardware troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Alert troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Network troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Virtual machine troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

A Port usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Preface v

Hyper Scale-Out Platform Maintaining and Troubleshooting

Preface

This document provides detailed information for maintaining and

troubleshooting Hyper Scale-Out Platform (HSP).

This Preface includes the following information:

•Intended audience

•Product version

•Release notes

•Document conventions

•Conventions for storage capacity

•Accessing product documentation

•Getting help

•Comments

Intended audience

This document is intended for customers, Hitachi Data Systems

representatives, and authorized service providers who are responsible for

maintaining and troubleshooting Hyper Scale-Out Platform.

To maintain and troubleshoot the Hyper Scale-Out Platform, you should

have:

• Basic knowledge and understanding of the Hyper Scale-Out Platform

solution, including how to use one or more of the management

interfaces

• Basic understanding of networking, as well as site-specific network

knowledge

If you need a high level overview of the Hyper Scale-Out Platform, we

recommend reading the following documents:

•Introducing Hitachi Hyper Scale-Out Platform provides an overview of

the HSP components, architecture, and product features.

•Setting Up and Configuring provides the instructions for unpacking,

physically setting up, and performing the configuration steps required

to begin using HSP.

vi Preface

Hyper Scale-Out Platform Maintaining and Troubleshooting

Product version

This document revision applies to Hyper Scale-Out Platform 1.2 or later.

Release notes

Read the release notes before installing and using this product. The release

notes may contain requirements or restrictions that are not fully described

in this document or updates or corrections to this document.

Document conventions

This document uses the following typographic conventions:

This document uses the following icons to draw attention to information:

Convention Description

Bold Indicates:

• Text in a window or dialog box, such as menus, menu options,

buttons, and labels. For example:

On the Add Pair dialog box, click OK.

• Text appearing on screen or entered by the user. For example:

The -split option…

Italic Indicates important new terms.

<Italic> in angle

brackets

Indicates a variable, which is a placeholder for site- or installation-

specific details that you need to provide. For example:

copy <source-file> <target-file>

monospace Indicates text that is displayed on the screen or text that you need

to enter. For example:

# pairdisplay -g oradb

Also, the name of a directory, folder, or file. For example:

The horcm.conf file…

[ ] square

brackets

Indicates optional values.

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

{ } braces Indicates required or expected values. Example: { a | b } indicates

that you must choose either a or b.

| vertical bar 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.

Icon Meaning Description

Tip Provides helpful information, guidelines, or suggestions for

performing tasks more effectively.

Important Calls attention to information that is essential to the

completion of a task.

Preface vii

Hyper Scale-Out Platform Maintaining and Troubleshooting

Conventions for storage capacity

Hyper Scale-Out Platform uses the International Electrotechnical

Commission (IEC) binary definition for storage capacity units:

Accessing product documentation

Product documentation is available on Hitachi Data Systems Support

Connect: https://knowledge.hds.com/Documents. Check this site for the

most current documentation, including important updates that may have

been made after the release of the product.

Getting help

Hitachi Data Systems Support Portal is the destination for technical support

of products and solutions sold by Hitachi Data Systems. To contact technical

support, log on to Hitachi Data Systems Support Connect for contact

information: https://support.hds.com/en_us/contact-us.html.

Hitachi Data Systems Community is a global online community for HDS

customers, partners, independent software vendors, employees, and

prospects. It is the destination to get answers, discover insights, and make

connections. Join the conversation today! Go to community.hds.com,

Caution Warns that failure to take or avoid a specified action could

result in adverse conditions or consequences (for example,

loss of access to data).

cv Electric

shock

hazard

Warns of electric shock hazard. Failure to take appropriate

precautions such as not opening or touching hazardous areas

of the equipment could result in injury or death.

ESD

sensitive

Warns that the equipment is sensitive to electrostatic

discharge (ESD) and could be damaged if you do not take

appropriate precautions such as using a grounded wrist strap

when touching or handling the equipment.

Sharp edges

or corners

Warns that the surface has sharp edges or corners. Avoid

touching or wear gloves.

Icon Meaning Description

Capacity unit Value

1 kibibyte (KiB) 1,024 (210) bytes

1 mebibyte (MiB) 1,0242(220) bytes

1 gibibyte (GiB) 1,0243(230) bytes

1 tebibyte (TiB) 1,0244(240) bytes

1 pebibyte (PiB) 1,0245(250) bytes

1 exbibyte (EiB) 1,0246(260) bytes

viii Preface

Hyper Scale-Out Platform Maintaining and Troubleshooting

Comments

Please send your comments on this document to:

[email protected]

Include the document title, number, and revision, and refer to specific

sections and paragraphs whenever possible. All comments become the

property of Hitachi Data Systems.

Thank you!

•

Accessing the health of an HSP cluster 1

Hyper Scale-Out Platform Supporting and Troubleshooting

Accessing the health of an HSP

cluster

This chapter covers how to monitor and access the health of your cluster

and covers:

•Overview

•Visually monitoring cluster node health

•Monitoring alert conditions using the management interfaces

•Monitoring the run state of HSP resources

Overview

The storage management aspects of the Hyper Scale-Out Platform are

designed for:

• Self-healing—failed internal services are restarted automatically. If

these services fail to restart after a period of time, the node is

automatically rebooted, and if the reboot fails to bring services back

online, the node is marked DOWN and a system alert condition is

reported. The HSP software will automatically attempt the reboot a few

more times, before marking the node as in ERROR and another system

alert condition is reported. All services will be stopped on the node in

ERROR, but the node will remain powered on for debugging purposes.

• Self-provisioning—new and/or replaced nodes and disks are

automatically discovered and provisioned for compute and storage.

• Self-rebalancing—data distribution is continually balanced and

optimized across the cluster.

• Automated data protection—3 copies of each file are maintained in the

cluster on different nodes and racks (when possible) to maximize data

availability and redundancy.

2 Accessing the health of an HSP cluster

Hyper Scale-Out Platform Supporting and Troubleshooting

Visually monitoring cluster node health

Monitoring system drives

Regularly inspect the LEDs on the system drives at the back of each node.

The LEDs should be green. If the LEDs are red, this indicates drive failure.

Monitoring data drives

The control panel located on the front of each node has five LEDs that

provide critical information. This section explains what each LED means

when illuminated and any corrective action you need to take.

Reference # Meaning

Power button with LED

Blue on: System power on

Off: System power off

Amber blinking: DC off and fault

Amber and blue blinking: DC on and fault

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