IBM Elastic Storage System 3000 User Manual

Figure 11. Inserting the new power interposer
7. Replace the PSU that was removed in step “1” on page 27. Follow the procedure that is described in
“Removing and replacing a power supply unit” on page 23.
8. Reconnect all cables.
Miscellaneous equipment specication (MES) instructions
Any ESS 3000 hardware change, which can be an addition, improvement, removal, or any combination of
three can be done by using the MES instructions.
ESS 3000 storage drives MES upgrade
An offline IBM Elastic Storage System 3000 (ESS 3000) MES upgrade is supported for customers who
want to upgrade a 12-drive ESS 3000 to a 24-drive ESS 3000.
To upgrade the system, the NVMe drives with the same size as the existing 12 drives must be used. This
MES upgrade makes the available storage double in the existing ESS 3000. For this offline procedure, a
planned downtime is required. Existing customer recovery group and le system data are preserved
before the MES upgrade.
Supported path: 12 NVMe ESS 3000 -> 24 NVMe ESS 3000
Prerequisites
• All new or existing building blocks must be at the ESS 5.3.5.1 or ESS 3000 6.0.0.1 level. If the setup has
any protocol nodes, these nodes must also be upgraded to ESS 5.3.5.1 levels (underlying code + IBM
Spectrum Scale 5.0.4.2 veried by using the gssinstallcheck command).
• The system must be healthy before the ESS 3000 storage MES upgrade.
• The existing ESS 3000 must be a properly installed 12 NVMe system with 12 NVMe drives correctly
located in slots 1-6 and 13-18.
• All le systems that use the ESS 3000 that is being upgraded must be unmounted.
• All cluster functions, for example, quorum or manager, stop on the two canister servers. If the canister
servers need to be up to maintain cluster quorum, then either other quorum nodes must be dened and
made available or GPFS on the whole cluster must be shut down.
• Unlike a regular ESS MES upgrade, you need not to ensure that all recovery groups in the cluster are
converted to the mmvdisk management because the mmvdisk management is already required for ESS
3000.
• LBS must wear an ESD wrist band when they work on the hardware, for example, inserting NVMe drives.
MES upgrade considerations
• Do not try to congure call home before MES is complete, that is, until the resizing is done.
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IBM Elastic Storage System 3000: Service Guide

IBM Elastic Storage System 3000 Specifications

General

Brand	IBM
Model	Elastic Storage System 3000
Category	Storage
Language	English

Summary

About this information

Who should read this information

Identifies the intended audience for the documentation and the system.

IBM Elastic Storage System information units

Details the different documentation components for the ESS 3000 system.

Related information

Provides references to other relevant IBM documentation and resources.

Conventions used in this information

Explains typographic and command-line conventions used throughout the document.

How to submit your comments

Provides contact information for submitting feedback on the documentation.

Chapter 1. Events

Array events

Lists and describes events related to the Array component of the system.

Canister events

Lists and describes events related to the Canister component of the system.

Enclosure events

Lists and describes events related to the Enclosure component of the system.

Physical disk events

Details events associated with physical disk failures and status.

Recovery group events

Lists and describes events related to the Recovery Group component.

Server events

Details events related to server hardware components and their status.

Virtual disk events

Lists and describes events related to the Virtual disk component.

Chapter 2. Servicing

Removing and replacing a drive

Procedure for removing and replacing a faulty drive in a node canister.

Removing and replacing a drive blank

Instructions for replacing drive slot fillers to maintain airflow.

Removing and replacing a power supply unit

Guide for replacing hot-swap redundant power supply units (PSUs).

Removing and replacing a power interposer

Procedure for removing and replacing the power interposer.

Miscellaneous equipment specification (MES) instructions

Instructions for hardware changes, additions, or improvements using MES.

Chapter 3. Part Listings

CRU part number list

Lists Customer Replaceable Unit (CRU) part numbers and descriptions.

FRU part number list

Lists Field Replaceable Unit (FRU) part numbers and descriptions.

Cable part number list

Provides a list of part numbers for various system cables.

Accessibility features for the system

Accessibility features

Highlights major accessibility features available in IBM Spectrum Scale RAID.

Keyboard navigation

Describes the use of standard Microsoft Windows navigation keys for interaction.

IBM and accessibility

Provides information on IBM's commitment to accessibility and related resources.

Notices

Trademarks

Glossary