Hardware Maintenance Hardware Maintenance
Copyright © 2007 EqualLogic, Inc. May 2007 EqualLogic is a registered trademark of EqualLogic, Inc. All trademarks and registered trademarks mentioned herein are the property of their respective owners. Possession, use, or copying of the documentation or the software described in this publication is authorized only under the license agreement. EqualLogic, Inc. will not be held liable for technical or editorial errors or omissions contained herein. Information in this document is subject to change.
Table of Contents Preface ..................................................................................................................v Audience ..........................................................................................................v Organization ....................................................................................................v Conventions ....................................................................................................
PS3000 Series Hardware Maintenance Table of Contents Installing a Power Supply and Cooling Module .......................................... 4-4 A Environmental, Power, and Other Specifications......................................A-1 Index............................................................................................................
Preface This manual describes how to maintain the hardware for PS3000 Series arrays from EqualLogic. Each array contains hot-swappable power supply and cooling modules, up to sixteen RAID-protected disks, and single or dual hot-swappable control modules. With one or more PS Series arrays, you can create a PS Series group—a selfmanaging, iSCSI storage area network (SAN) that is affordable and easy to use, regardless of scale. To install hardware, see the PS3000 Series QuickStart.
PS3000 Series Hardware Maintenance Preface • Chapter 4, Maintaining Power Supply and Cooling Modules, describes how to install and remove one of the modules that provides both power and cooling. • Appendix A, Environmental, Power, and Other Specifications, describes the specifications for a PS3000 Series array. Conventions Conventions used in the manual are shown in the following table.
PS3000 Series Hardware Maintenance • Preface Online help. In the GUI, expand Tools in the far left panel and then click Online Help for help on both the GUI and the CLI. See Obtaining Online Help on page 2-16. The QuickStart and Hardware Maintenance manuals are printed and shipped with the product. They are also located on the PS Series documentation CD-ROM that is shipped with the product, along with the Group Administration and CLI Reference manuals and the Group Manager online help.
PS3000 Series Hardware Maintenance Preface Regulatory Agency Notices PS Series arrays have been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules and other international standards. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
1 Basic Array Information This chapter includes basic information about PS3000 Series arrays: • Array Front and Back Panels on page 1-1 • Interpreting Operations Panel LEDs on page 1-2 • Using an Electrostatic Wrist Strap on page 1-4 • Shutting Down and Restarting an Array on page 1-4 Array Front and Back Panels The front and back panels of a PS3000 Series array are shown below.
PS3000 Series Hardware Maintenance Basic Array Information Interpreting Operations Panel LEDs The operations panel is used to monitor PS3000 Series hardware components. The panel is not redundant, but an array can continue to operate if it fails. See your PS Series array service provider for information about servicing the panel. Figure 1-3 and Table 1-1 describe the LEDs on the PS3000 Series array operations panel, which can alert you to errors and conditions that require your attention.
PS3000 Series Hardware Maintenance Basic Array Information Table 1-1: Operations Panel LED Descriptions (Continued) Operations LED Color Description Warning condition (lower left) Off No power or normal condition. Error condition (lower right) Off Flashing One or more of the following has occurred: orange • RAID set is degraded but still functioning. • RAID set (volume level) has lost blocks. • Component temperature is near a limit. • Fan failed or fan RPMs exceed limit.
PS3000 Series Hardware Maintenance Basic Array Information Using an Electrostatic Wrist Strap When handling the array chassis, disks, or control modules, you must use an electrostatic protection device to prevent electrostatic discharge. An electrostatic wrist strap is included in the shipping box.
PS3000 Series Hardware Maintenance Basic Array Information Serial line characteristics are as follows: - 9600 baud One STOP bit No parity 8 data bits No hardware flow control 2. Log in to an account with read-write access, such as the grpadmin account. 3. Enter the shutdown command, as shown next. Login: grpadmin Password: xxxxxxx Welcome to Group Manager Copyright 2001-2007 EqualLogic, Inc.
2 Maintaining Disks Each PS3000 Series array includes up to 16 hot-swappable disks. Disk maintenance topics include: • Interpreting Disk LEDs on page 2-1 • Disk Handling Requirements on page 2-2 • Identifying Failed Disks on page 2-3 • Removing Disks on page 2-3 • Installing Disks on page 2-5 Interpreting Disk LEDs Figure 2-1shows how disks are numbered in a PS3000 Series array. Figure 2-1: PS3000 Series Disk Numbering Figure 2-2 shows the disk LEDs. Table 2-1 describes the LEDs.
PS3000 Series Hardware Maintenance Maintaining Disks Table 2-1: PS3000 Series Disk LED Descriptions Disk LEDs Color Description Top Off No power or error condition. Green Power. Flashing green Disk activity. Off No power or normal condition. Red Error condition. Bottom Disk Handling Requirements You must adhere to the following disk handling requirements: • Store disks properly. Store replacement disks in the packaging in which they were shipped.
PS3000 Series Hardware Maintenance Maintaining Disks Identifying Failed Disks Disks in a PS3000 Series array are numbered from 0 to 15 (from left to right, top row to bottom row). A disk failure is indicated by: • The disk’s error LED (bottom) is red, and the power LED (top) is off. See Interpreting Disk LEDs on page 2-1. • A message on the console, in the event log, or in the Group Manager GUI Alarms panel describes a disk failure.
PS3000 Series Hardware Maintenance Maintaining Disks Figure 2-3 shows how to remove a disk from a PS3000 Series array. Instructions for removing a blank carrier are similar, except you do not have to wait 30 seconds.
PS3000 Series Hardware Maintenance Maintaining Disks Installing Disks Before installing a disk or blank carrier in an array, attach an electrostatic protection device, as described in Using an Electrostatic Wrist Strap on page 1-4. Notes: Install only disks of the same type, speed, and spin rate in an array. The color of the handle release button indicates the disk type. You can use disks with different sizes in an array.
PS3000 Series Hardware Maintenance Maintaining Disks Figure 2-4 shows how to install a disk in an array. Use the same instructions for installing a blank carrier. Notes: Make sure the disk is oriented in the position shown below, with the handle release button to the left. When correctly installed, a disk will be level with the front of the array. If the disk is protruding from the array, reinstall the disk.
3 Maintaining Control Modules A PS3000 Series array includes one or two hot-swappable control modules. Each control module includes a field-replaceable compact flash card (running PS Series firmware), in addition to cache and NVRAM batteries. For information about replacing a cache or NVRAM battery, contact your PS Series service provider.
PS3000 Series Hardware Maintenance Maintaining Control Modules Interpreting Control Module LEDs Control modules have LEDs that enable you to determine the status of the control module (active or secondary) and identify problems. In addition, each network interface on a control module also has LEDs. Figure 3-3: Control Module LEDs Note: Control modules are installed vertically in a PS3000 Series array, with the latch mechanism facing the power supply and cooling module.
PS3000 Series Hardware Maintenance Maintaining Control Modules Control Module Handling Requirements You must adhere to the following control module handling requirements: • Protect control modules from electrostatic discharge. Always wear an electrostatic wrist strap when handling a control module, as described in Using an Electrostatic Wrist Strap on page 1-4. When not installed, store a control module in an antistatic bag or place it on a surface protected from electrostatic discharge.
PS3000 Series Hardware Maintenance Maintaining Control Modules connected to the port on the active control module. Therefore, you should connect a cable to the network interface port on each control module to ensure that both control modules can access an interface. A PS3000 Series array provides two types of network failure protection: • Network connection failover.
PS3000 Series Hardware Maintenance Maintaining Control Modules Connecting Network Cables A PS3000 Series array must have at least one and can have up to three active network connections at one time. Multiple network connections are recommended for performance and availability. Connect cables to network interfaces as follows: • For copper-based networks, use Category 5E or Category 6 cables with RJ45 connectors. Use Category 5 cables if they meet the TIA/EIA TSB95 standard.
PS3000 Series Hardware Maintenance Maintaining Control Modules For a dual control module array, the minimum network configuration is a network connection to Ethernet 0 on both control modules. Although this configuration protects against control module failover, it is still a potential point of failure (for example, if the network cable connected to the active control module is disconnected). Therefore, it is recommended that you connect multiple network interfaces to different switches.
PS3000 Series Hardware Maintenance Maintaining Control Modules Figure 3-6: Recommended Dual Control Module Configuration Removing a Control Module If a control module fails, you should remove it and replace it with a functioning control module. You also may need to temporarily remove a control module to replace a compact flash card.
PS3000 Series Hardware Maintenance Maintaining Control Modules To remove a control module, follow the instructions in Figure 3-7. Note: If you are removing a failed control module, you must remove the compact flash card from the failed control module, as described in Replacing the Compact Flash Card on page 3-11. Then, install the card in the replacement control module. This will ensure that the new control module is running the correct firmware.
PS3000 Series Hardware Maintenance Maintaining Control Modules If the array will permanently operate with only one control module, you must install a blank control module in the empty slot. You can order a blank from your PS Series array service provider. For proper cooling, do not leave a control module slot empty.
PS3000 Series Hardware Maintenance Maintaining Control Modules Figure 3-8: Installing a Control Module After installing a control module, connect network cables to the control module, as described in Connecting Network Cables on page 3-5. Then, if the array was shut down, turn on power to the array. Check the LEDs, as described in Interpreting Control Module LEDs on page 3-2. Also, check the GUI Member Controllers window or invoke the CLI member select show controllers command.
PS3000 Series Hardware Maintenance Maintaining Control Modules Note: Once connected, a control module cache battery may begin to charge. If you have a dual control module array and the low-battery-safe cache policy is enabled (the default), the array will operate in write-through mode until the cache battery is fully charged.
PS3000 Series Hardware Maintenance • Maintaining Control Modules You can access the compact flash card by sliding the control module partially from the slot. If you completely remove the control module, place it on a surface that is protected from electrostatic discharge. Figure 3-9 on page 3-12 shows how to remove a compact flash card from a control module and also how to install a card.
4 Maintaining Power Supply and Cooling Modules A PS3000 Series array includes two hot-swappable, combination power supply and cooling modules.
PS3000 Series Hardware Maintenance Maintaining Power Supply/Cooling Modules Identifying Power Supply and Cooling Module Failures A failure on a power supply and cooling module can be indicated by the following: • A power supply and cooling module LED is orange. See Interpreting Power Supply and Cooling Module LEDs on page 4-1. • Message on the console, in the event log, or in the Group Manager GUI Alarms panel describes a power supply and cooling module failure.
PS3000 Series Hardware Maintenance Maintaining Power Supply/Cooling Modules Figure 4-2: Removing a Power Supply and Cooling Module 4–3
PS3000 Series Hardware Maintenance Maintaining Power Supply/Cooling Modules Installing a Power Supply and Cooling Module To install a power supply and cooling module in an array, refer to Figure 4-3. Figure 4-3: Installing a Power Supply and Cooling Module If your PS Series array was shipped with a power cable, use this cable to meet safety requirements. Be sure to use the cable strain relief to secure the power cable to the array, as shown in Figure 4-4.
PS3000 Series Hardware Maintenance Maintaining Power Supply/Cooling Modules Figure 4-4: Using the Cable Strain Relief Turn on power to the power supply and cooling module (press –). Initialization generally can take from one to ten seconds. Completion is indicated by the green power LED and event log messages stating that fans have returned to their normal speed. To ensure that the new module is operational, check that there are no red LEDs.
A Environmental, Power, and Other Specifications Table A-2 describes the environmental, power, and physical specifications for a PS3000 Series array. Table A-2: PS3000 Series Array Specifications Component Requirement Weight of fully-loaded array 77.
Index batteries 3-1 charging cache battery 3-11 checking proper installation 3-10 compact flash card moving 3-8, A array back panel 1-1 batteries 3-1 control module restriction 3-9 control modules 3-1 cooling 4-1 disks 2-1 environmental requirements A-1 failure indications 1-2 fans 4-1 firmware 3-4 front panel 1-1 LEDs 1-2, 2-1, 3-2, 4-1 maximum network availability 3-6 maximum network bandwidth 3-5, 3-6 power supplies 4-1 protecting from discharge 1-4 shutdown procedure 1-4 specifications A-1 B batterie
PS3000 Series Hardware Maintenance removing from array 2-3 verifying operational status 2-6 E electrostatic protection, using 1-4 environmental requirements A-1 F failover control module 3-3, 3-4 network connection 3-4 port 3-4 failure indications array 1-2 control modules 3-3 cooling 4-2 disks 2-3 power 4-2 fans failure indications 4-2 initialization 4-2 installing module in array 4-4 LEDs 4-1 locating modules 4-2 maintaining 4-1 removing module from array 4-2 verifying operational status 4-5 firmware i
PS3000 Series Hardware Maintenance Index power 4-2 power cables 4-4 S serial connection, making 1-4 shutting down an array 1-4 specifications, array A-1 U upgrading to dual control modules 3-4 Index-3
