Quantum QXS G2 Series User Manual

182 QXS G2 Hardware Installation and Maintenance Guide
3 To determine if any reads or writes occur during interval, subtract the set of numbers you recorded
in step 1 from the numbers you recorded in step 2.
• If the resulting difference is zero, then I/O has stopped.
• If the resulting difference is not zero, a host is still reading from or writing to this disk group.
• Continue to stop I/O from hosts, and repeat step 1 and step 2 until the difference in step 3 is
zero.
NOTE: See the QXS G2 CLI Reference Guide for additional information. Optionally, you can use the
disk management utility (GUI) to monitor IOPs and MB/s.
Shutting Down a Controller Module
Shutting down the controller in a RAID chassis ensures that a proper failover sequence is used, which
includes stopping all I/O operations and writing any data in write cache to disk.
• If both controller modules are shut down, hosts cannot access the system’s data.
• Perform a shut down before you remove a controller module from a chassis, or before you power
off its chassis for maintenance, repair, or a move.
• Use the disk management utility (GUI) or the CLI to perform a shutdown.
Using the Disk Management Utility (GUI)
1 Sign-in to the disk management utility (GUI).
2 In the System panel in the banner, select Restart System.
The Controller Restart and Shut Down panel opens.
3 Select the Shut Down operation, which automatically selects the controller type Storage.
4 Select the controller module to shut down: A, B, or both.
5 Select OK. A confirmation panel appears.
6 Select Yes to continue; otherwise, select No. If you selected Yes, a message describes shutdown
activity.
NOTE: If an iSCSI port is connected to a Microsoft Windows host, the following event is
recorded in the Windows event log:
Initiator failed to connect to the target .
NOTE: See the QXS G2 Disk Management Utility User Guide for additional information.
Using the CLI
1 Log-in to the CLI.
2 In your dual-controller system, verify that the partner controller is online by running the
command;
show controllers
3 Shut down the failed controller—A or B—by running the command:
shutdown a or shutdown b

Quantum QXS G2 Series Specifications

General

Brand	Quantum
Model	QXS G2 Series
Category	Storage
Language	English

Summary

Safety Guidelines

Safe Handling of Equipment

Follow safety cautions when handling QXS G2 equipment, including lifting and unplugging procedures.

Operation of the QXS G2 Systems

Important operational requirements for QXS G2 systems, including installed components and precautions.

Electrical Safety

Follow electrical precautions for 2U and 5U chassis, ensuring proper grounding and power source.

Rack System Safety Precautions

Safety requirements for mounting chassis in a rack, including weight support and rack stability.

System Overview

Chassis Configurations

Describes the three supported RAID chassis configurations: 2U12, 2U24, and 5U84.

CompactFlash and Supercapacitor Pack

Explains the role of CompactFlash and Supercapacitor Pack in data protection during power events.

Chassis Views and Serial Number Locations

Provides front/rear views and serial number locations for 2U12, 2U24, and 5U84 chassis.

Chassis Variants

Details the QXS G2 chassis variants and their configurations (RAID/Expansion).

2U Chassis Core Product

Describes the design concept and typical components of a 2U chassis.

5U Chassis Core Product

Describes the design concept and typical components of a 5U chassis.

Installation

Installation Checklist

Outlines steps for planning and successfully installing the system into an industry standard 19-inch rack.

Planning and Site Preparation

Information to familiarize with system configuration requirements and prepare the site.

Chassis Unpacking and Installation

Procedures for unpacking chassis and installing 2U and 5U models into the rack.

Cabling and Network Configuration

Connects chassis, covers protocols (FC/iSCSI), host connections, and network setup.

System Configuration and Updates

Covers connecting management host, updating firmware, and setting IP addresses.

Operation

Before You Begin

Ensure modules are seated and installation is complete before powering on the storage system.

Powering On/Off Procedures

Guidelines and step-by-step procedures for powering 2U and 5U QXS G2 systems on and off.

Operator’s (Ops) Panel LEDs

Describes Ops panel LEDs for 2U and 5U chassis status indication and fault conditions.

Troubleshoot/Problem Solving

Initial Start-Up Problems

Information on faulty power cords and host interface issues during initial system startup.

Chassis LEDs and Status Indicators

Details LEDs for 2U/5U chassis, PSUs, Ops panels, drives, controllers, and IOMs.

Troubleshooting 2U Chassis

Covers common problems and solutions for 2U chassis, including Module Fault LED indication.

Troubleshooting 5U Chassis

Covers common problems and solutions for 5U chassis, including Module Fault LED indication.

Fault Isolation Methodology

Basic methodology for locating faults and identifying affected CRUs within a storage system.

Isolating Connection Faults

Troubleshooting steps for host-side and controller expansion port connection issues using LEDs.

Replication Troubleshooting

Diagnostic steps for replication setup, verification, and common issues.

Module Remove and Replace

ESD Precautions

Precautions and preventive measures to prevent electrostatic discharge damage to components.

2U Chassis CRU Replacement

Procedures for replacing CRUs in 2U chassis: bezel, PSU, drive carrier, controller, chassis.

5U Chassis CRU Replacement

Procedures for replacing CRUs in 5U84 chassis: DDIC, bezel, PSU, fan, controller, chassis.

Technical Specifications

Chassis Dimensions

Provides metric and imperial dimensions for 2U and 5U chassis models.

Chassis Weights

Lists weights for chassis components and fully populated systems (2U12, 2U24, 5U84).

Environmental Requirements

Specifies ambient temperature, humidity, altitude, shock, and vibration requirements.

PSU Specifications

Details PSU specifications for 2U (580W) and 5U (2114W) systems.

Standards and Regulations

International Standards

Lists agency and standards compliance for QXS-G2 systems (CE, CB, UL).

Potential for Radio Frequency Interference

Notices regarding FCC rules for radio frequency interference and potential interference.

Safety and EMC Compliance

Lists safety compliance (UL, IEC, EN) and EMC compliance specifications.

AC Power Cords

Specifies AC power cord requirements for different regions and chassis form factors.

Recycling of Waste Electrical and Electronic Equipment (WEEE)

Information on recycling electronic equipment at the end of its product life.

USB Device Connection

Rear Panel USB Ports

Describes the USB CLI port for connecting a management computer to the controller.

Device Driver and Operation Modes

Information on device drivers and special modes for USB CLI port functionality.

Using CLI Port and Cable with Windows

Workarounds for known issues when using the CLI port and cable with Windows.

SFP Option for CNC Ports

Locate and Install SFP Transceivers

Procedure for locating and installing SFP transceivers into CNC ports.

CNC Ports/SFP Configuration

Describes configuring CNC ports for FC or iSCSI interface protocols.

Connecting CNC Ports to iSCSI Hosts

Specific instructions for configuring CNC ports for iSCSI host connections.

Verify Component Operation

Verifies CNC port connection and link status using Link Status/Link Activity LEDs.