C H A P T E R 1

Installing Sun Storage 2500-M2 Arrays

This chapter describes the process of installing the Sun Storage 2500-M2 Arrays. It contains the following sections:

- About Sun Storage 2500-M2 Trays

- Installation Tasks Checklist

- Controller Tray and Expansion Tray Components

- Disk Drives

- Array Management Software

- Service Advisor and CRUs

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About Sun Storage 2500-M2 Trays

The Sun Storage 2540-M2 FC array, Sun Storage 2530-M2 SAS array, and the Sun Storage 2501-M2 array expansion tray are a family of storage products that provide high-capacity, high-reliability storage in a compact configuration.

The controller tray, with two controller modules, provides the interface between a data host and the disk drives. The Sun Storage 2540-M2 FC array provides a Fibre Channel (FC) connection between the data host and the controller tray. The Sun Storage 2530-M2 SAS array provides a Serial Attached SCSI (SAS) connection between the data host and the controller tray.

The Sun Storage 2500-M2 Arrays are modular, rack-mountable controller trays. The arrays are scalable from a single controller tray configuration to a maximum configuration of one controller tray and three additional expansion trays. One controller tray and three expansion trays creates a storage array configuration with a total of 48 drives.

The Sun Storage 2501-M2 array expansion tray provides additional storage. You can attach the expansion tray to either of the Sun Storage 2500-M2 Arrays. Controller trays and expansion trays can be installed in industry-standard cabinets.

Use Sun Storage Common Array Manager to manage the array. See Sun Storage Common Array Manager documentation for more information.

| Caution - Possible hardware damage--To prevent electrostatic discharge damage to the tray, use proper antistatic protection when handling tray components.

### Sun Storage 2500-M2 Controller Trays

Two types of controller trays are offered:

- Sun Storage 2540-M2 Fibre Channel (FC) Array

- Sun Storage 2530-M2 Serial Attached SCSI (SAS) Array

TABLE 1-1 describes the features of the FC and SAS controller trays.

TABLE 1-1 Sun Storage 2500-M2 Controller Tray Features
Sun Storage 2540-M2 FC Array | Sun Storage 2530-M2 SAS Array
--- | ---
Four 8Gbps Fibre Channel data host ports expandable to eight FC ports | Four 6Gbps SAS host ports
2-GB of cache | 2-GB of cache
2U x 12 HDD (3.5” SAS-2 Drives) | 2U x 12HDD (3.5" SAS-2 drives)
300 GB15K or 600 GB15K Drives | 300 GB15K or 600 GB15K drives
Maximum connection is 48 disk drives (one controller tray and three expansion trays) | Maximum connection is 48 disk drives (one controller tray and three expansion trays)
AC or DC power options | AC or DC powered options

### Sun Storage 2501-M2 Expansion Tray

The expansion tray expands the capacity of a storage array. The controllers in the controller tray connect to the expansion tray and access the disk drives in the expansion tray for additional storage. An expansion tray contains both physical components (disk drives, input/output modules (IOMs), and power-fan modules) and logical components (virtual disks and volumes).

FIGURE 1-1 Sun Storage 2500-M2 Arrays Connection Example Using Fibre Channel

[ D ]

* In-band management is also supported.

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Installation Tasks Checklist

TABLE 1-2 outlines the tasks required for installing Sun Storage 2500-M2 Arrays hardware and tells you where you can find detailed procedures. To ensure a successful installation, perform the tasks in the order in which they are presented.

Before you install the array, do the following:

- Read the Sun Storage 2500-M2 Arrays Release Notes

- Prepare the site as described in these books:

- Sun Storage 2500-M2 Arrays Regulatory and Safety Compliance Manual

- Sun Storage 2500-M2 Arrays Site Preparation Guide

The Sun Storage 2500-M2 Arrays Site Preparation Guide has information about the physical dimensions of the trays as well as the service clearance and the power requirements of the cabinet. This document should be used to prepare your site layout prior to the installation.

TABLE 1-2 Sun Storage 2500-M2 Arrays Hardware Installation Checklist
Step | Task | Where to Find Procedure
--- | --- | ---
| Unpack the cabinet and move it into position. | Unpacking guide attached to the outside of the shipping carton
| Install and secure the cabinet. | Installation instructions for industry standard cabinet
| Attach the rails to the cabinet. | Installing Adjustable Support Rails
| Mount the controller tray and expansion trays in the cabinet. | Installing Controller and Expansion Trays
| Cable the controller tray and expansion trays. | Connecting the Controller Tray to Expansion Trays
| Connect the management host and data hosts. | Configuring Out-of-Band Management Configuring In-Band Management Connecting Data Hosts
| Turn on the power. | Powering On the Array

Table showing the Sun Storage 2500-M2 Arrays hardware installation checklist: Steps, installation tasks, and procedure locations within this document.

When the tasks in TABLE 1-2 are complete, you can install Sun Storage Common Array Manager on an external management host, install and upgrade firmware from the management host, and perform initial array setup and system configuration. See the Sun Storage Common Array Manager Installation and Setup Guide for information on software-related tasks.

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Controller Tray and Expansion Tray Components

Sun Storage 2500-M2 Arrays consist of one or more controller trays and up to three expansion trays.

### Controller Tray and Expansion Tray Front-Access Components

Components that you access through the front of the Sun Storage 2540-M2 FC array and Sun Storage 2530-M2 SAS array are identical in appearance.

| Caution - Electrical grounding hazard--This equipment is designed to permit the connection of the DC supply circuit to the earthing conductor at the equipment.

Note - Each tray in the storage array must have a minimum of two drives for proper operation. If the tray has fewer than two drives, a power supply error is reported.

- The top of the controller tray is the side with labels.

- The configuration of the host ports might appear different on your system, depending on which host interface card configuration is installed.

FIGURE 1-2 Front-Access Components on the Controller Tray and the Expansion Tray

[ D ]

1 | Left end cap with LEDs | 3 | Right end cap
2 | Drives |  |

### Controller Tray Rear-Access Components

FIGURE 1-3 describes the components that you access from the rear of the Sun Storage 2540-M2 Arrays controller trays include.

FIGURE 1-3 2540-M2 FC Controller Tray, Rear-Access Components

1 | Controller module A | 8 | Power-fan module
2 | Serial port | 9 | Controller module LEDs
3 | Ethernet ports | 10 | Power-fan module LEDs
4 | SAS host ports (Not for use and not supported on 2540-M2) | 11 | Power connector
5 | 7-Segment display | 12 | Power switch
6 | FC host ports (Not available on 2530-M2) | 13 | Controller module B
7 | SAS expansion port |  |

FIGURE 1-4 2530-M2 SAS Controller Tray, Rear Access Components

### Expansion Tray Rear-Access Components

The following figures describe the components that you access from the rear of the Sun Storage 2501-M2 array expansion tray. Each expansion tray can contain a maximum of twelve 3.5-in. (8.89-cm) drives.

FIGURE 1-5 shows the AC power option and FIGURE 1-6 shows the DC power option.

FIGURE 1-5 2501-M2 Expansion Tray Rear-Access Components--AC Power Option

1 | IOM A | 7 | SAS expansion port
2 | IOM LEDs | 8 | Power-fan module
3 | SAS IN ports | 9 | Power-fan module LEDs
4 | 7-Segment display (see Expansion Tray 7-Segment Display) | 10 | Power connector (AC or DC)
5 | Serial port | 11 | Power switch (AC or DC)
6 | Ethernet port | 12 | IOM B

FIGURE 1-6 2501-M2 Expansion Tray Rear-Access Components--DC Power Option

### Important Information About DC Power Option

You can order an optional DC power supply connection and connector cables for the drive tray. A qualified service person is required to make the DC power connection per NEC and CEC guidelines. A two-pole, 30-amp circuit breaker is required between the DC power source and the drive tray for over-current and short-circuit protection. Before turning off any power switches on a DC-powered expansion tray, you must disconnect the two-pole, 30-amp circuit breaker.

| Caution - Risk of electrical shock--This unit has more than one power source. To remove all power from the unit, all DC MAINS must be disconnected by removing all power connectors from the power supplies.

### Controller Tray Host Ports

FIGURE 1-7 Sun Storage 2530-M2 Array SAS Ports--Rear View

1 | SAS host ports | 2 | SAS expansion port

FIGURE 1-8 Sun Storage 2540-M2 Arrays FC Ports--Rear View

1 | FC host ports | 2 | SAS expansion port

Note - Four Small Form-factor Pluggable (SFP) transceivers are shipped with the Sun Storage 2540-M2 FC controller tray, providing support for two FC ports per controller module, or four FC ports per controller tray.

Note - The SAS host ports on the 2540-M2 FC controller tray are not for use and not supported.

#### SFP Transceivers

The controller tray supports Fibre Channel (FC) and SAS drive connections. FC host connections can operate at 8 Gb/s or at a lower data rate. Ports for 8-Gb/s Fibre Channel host connections require SFP transceivers designed for this data rate. These SFP transceivers look similar to other SFP transceivers but are not compatible with other types of connections.

Note - The SFP transceiver shown might look different from those that are shipped with your controller tray. The difference does not affect transceiver performance.

| Caution - Risk of exposure to laser radiation--Do not disassemble or remove any part of a Small Form-factor Pluggable (SFP) transceiver because you might be exposed to laser radiation.

FIGURE 1-9 SFP Transceiver for the Sun Storage 2540-M2 FC Array

1 | Active SFP transceiver | 2 | Fiber-optic cable

Note - On the Sun Storage 2530-M2 controller tray, each controller module has a pair of levers with handles for removing the component from the tray. One of these handles on each controller module is located next to a host port. The close spacing between the handle and the host port might make it difficult to remove a cable that is attached to the host port. If this problem occurs, use a flat-blade screwdriver to push in the release component on the cable connector.

### Power-Fan Modules

The power-fan module for the Sun Storage 2540-M2 FC array, Sun Storage 2530-M2 SAS array, and Sun Storage 2501-M2 array expansion tray is identical and interchangeable.

Note - A minimum of two disk drives must be operating in a controller tray or in an expansion tray to avoid generating a power-fan module error.

The power-fan module contains an integrated cooling fan. The power supply provides power to the internal components by converting incoming AC voltage to DC voltage. The fan circulates air inside of the tray by pulling air in through the vents on the front of the module and pushing the air out of the vents on the back of each fan.

Each tray contains two power-fan modules. If one power supply is turned off or malfunctions, the other power supply maintains electrical power to the tray. Likewise, the fans provide redundant cooling. If one of the fans in either fan housing fails, the remaining fan continues to provide sufficient cooling to operate the tray. The remaining fan runs at a higher speed until the failed fan is replaced. Replace the failed fan as soon as possible.

### Expansion Tray IOM

The expansion tray contains two input/output modules (IOMs) that provide the interface between the disk drives in the expansion tray and the controllers in the controller tray. Each controller module in the controller tray connects to an IOM.

If one IOM fails, the other IOM provides a redundant data path to the disk drives. You can replace a failed IOM while the power to the storage array is turned on and the storage array is processing data (a hot swap).

For IOM replacement procedures, see the Service Advisor feature of Sun Storage Common Array Manager.

### Service Action LEDs

Each controller, power-fan module, IOM, and disk drive has a Service Action Allowed LED. The Service Action Allowed LED indicates when you can remove a component safely.

For a description of each LED, see:

- LED Symbols and General Behavior

- Disk Drives LEDs

- Controller Tray and Expansion Tray LEDs

| Caution - Potential loss of data access--Never remove a power-fan module, a controller module, or a disk drive unless the Service Action Allowed LED is turned on or you are given specific instructions to do so by the Service Advisor feature of the Sun Storage Common Array Manager.

If a CRU or module fails and must be replaced, the Service Action Required LED on that module turns on to indicate that a service action is required. The Service Action Allowed LED turns on if it is safe to remove the CRU or module. If there are data availability dependencies or other conditions that dictate that a CRU or module should not be removed, the Service Action Allowed LED remains off.

The Service Action Allowed LED automatically turns on or turns off as conditions change. In most cases, the Service Action Allowed LED turns on when the Service Action Required (Fault) LED is turned on for a CRU or module.

Note - If the Service Action Required (Fault) LED is turned on but the Service Action Allowed LED is turned off for a particular CRU or module, you might have to service another component first. Check the Service Advisor feature of Sun Storage Common Array Manager to determine the action you should take.

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Disk Drives

Controller trays or expansion trays hold up to 12 disk drives, for a maximum of 48 disk drives in a storage array. To reach the maximum of 48 disk drives, the storage array must consist of one controller tray and three expansion trays.

Access to disk drives is from the front of the tray.

Disk drives can be mixed, provided you adhere to these additional rules:

- Use the same drive types within a virtual disk

- Assign hot spares to cover any disk drive failure

FIGURE 1-10 Disk Drives

Refer to the release notes for your array for supported drives.

1 | Left end cap (with drive tray LEDs) | 3 | Right end cap
2 | Drives |  |

Disk drives for the Sun Storage 2500-M2 Arrays have three components:

- Hard drive

- Hard drive carrier

- Adapter card for connecting the disk drive to the mid-plane

The physical locations of the disk drives are numbered 1 through 12, from left to right, and from top to bottom. The right end cap has numbers on the side showing the numbers of the adjacent drives. The Service Advisor feature of Sun Storage Common Array Manager automatically detects a disk drive’s tray ID and slot designation.

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Array Management Software

The Sun Storage 2500-M2 Arrays are managed by Sun Storage Common Array Manager. The array management software provides:

- Web browser-based management and configuration from an external management host

- Data host software that controls the data path between the data host and the array

- Remote command-line interface (CLI) client that provides the same control and monitoring capability as the web browser, and is scriptable for running frequently performed tasks

- Service Advisor, an online reference of hardware and software configuration and troubleshooting information and procedures.

For information about installing the array management software and configuring and managing the array, see the Sun Storage Common Array Manager Installation and Setup Guide and the Sun Storage Common Array Manager Administration Guide.

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Service Advisor and CRUs

Note - The replaceable components inside the controller tray or expansion tray are referred to as either customer replaceable units (CRUs) or as modules.

The majority of replaceable units are designed to be replaceable by customers.

To see a list of the hardware components that can be replaced at the customer site, refer to Service Advisor in Sun Storage Common Array Manager.

The Service Advisor also provides procedures for replacing array components.

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