C H A P T E R

Introducing Xserve RAID
Your new Xserve RAID storage system provides high availability and scalable capacity and performance. Key features of Xserve RAID include m 3U enclosure (5.25 inches high) m rack optimized m dual independent RAID controllers, each with a minimum of 128 megabytes (MB) of RAM cache m up to 14 hot-swappable ATA-100 Apple Drive Modules m dual hot-swappable power supplies m dual AC power connections m dual hot-swappable cooling modules m dual 2-gigabit (Gb) copper bre channel ports, supporting point-to-point and switch fabric connections m dual Ethernet ports for remote management of the system m dual serial ports for uninterruptible power supply (UPS) communications m Mac OS X compatibility (version 10.2.4 or later) m PCI host bus adapter card (sold separately) with dual bre channel connectors for host system m optional dual battery backup for controller cache m optional service parts kit m optional drive modules The Xserve RAID system is designed to be mounted in a rack.
Important Two people are required to unpack, lift, or mount the Xserve RAID system in a rack. Do not attempt to lift or move the system without help from a second person.
Unpacking the System The Xserve RAID system is shipped in special packaging to facilitate simple and safe removal from the carton. As noted previously, always work with a second person to lift or move the system. Follow the steps below to open the carton and remove the system from its packaging.
Locate a sturdy table, cart, or other at surface on which to place the system. The destination surface should be as close as possible to the systems carton. With one person on each side of the carton, remove the four packing clips on each side of the carton by pulling the plastic tab at the end of each packing clip, then removing it from the carton. Cut the tape at the bottom of the carton.
Do not cut open the top of the box. The entire top comes off as a single piece.
Cut the tape that is on both sides on the bottom of the box.
Remove the four plastic packing clips by snapping them open and pulling them out.
Lift off the top section of the carton and set it aside. The system is in the lower part of the carton, beneath two smaller boxes.

Chapter 1

Remove the protective foam and the two boxes on top of the system. Fold back the plastic covering on the unit and fold down the carton at the front and back of the system. With one person at the front of the system and one at the back, carefully slide your hands between the system and its plastic cover where there are openings in the supporting foam, lift the system out of the carton, and put it on the table or other surface.

The unit is heavy. You must have two people lift it out of the box. With one person at each end, slide your hands underneath the unit and over the plastic sheet in which it is wrapped. Working together, lift the unit carefully using your knees, not your back.
Remove the protective lm that covers the front of the system. If there is a plastic bracket that covers the center part of the systems back panel, remove it. This bracket holds the components securely in place during shipping. Remove the mounting hardware and power cords from the two separate boxes, as well as the systems documentation. Write down the system serial number you see on the back panel. Also copy the Ethernet Media Access Control (MAC) number from the label on each control module (at the top and bottom in the center of the system). You will need these numbers when setting up and working with the monitoring and admin software.
Your System at a GlanceFront Panel
Drive module lock and status light
System identifier button and light

Mute button

Host activity lights
Drive module activity and status lights
Power supply status light
Cooling system status light

Temperature status light

Controller status light
Fibre channel link lights

Drive modules

Drive module lock and lock status light
The lock secures the drive modules in the system. It can be locked and unlocked with the enclosure key supplied with the system (or a 3 mm. hex key).
The system identier light turns on if a problem is detected. You can also turn it on manually by pressing the button. This indicator is useful for locating a particular unit in a rack with multiple systems. A duplicate is on the back panel. (See Using Status Lights and Other Indicators on page 46 for more information.)
Press to turn off the audible alarm that signals an error condition. ( You can also turn off the alarm using the systems monitoring and admin software.)
Fibre channel activity lights
Two vertical rows of 23 lights indicate bre channel activity. (See Using Status Lights and Other Indicators on page 46 for more information.)
Each drive module has two lights showing disk activity and drive status. See Using Status Lights and Other Indicators on page 46 for details.
Indicates power supply operation: green is OK, red is failure. (See Using Status Lights and Other Indicators on page 46 for more information.)
Indicates cooling module operation: green is OK, red is failure.
Indicates temperature status: green is OK, red is failure.
Indicates RAID controller operation: green is OK, red is failure. (See Using Status Lights and Other Indicators on page 46 for more information.)

Two lights indicate that a bre channel connection is active for each RAID controller.
You can install up to 14 drive modules, in two groups of 7 modules each. You can remove and install these modules while the system is running. (See Installing or Replacing an Apple Drive Module on page 49 for more information.)
Your System at a GlanceBack Panel
RAID controller reset button
Cooling module status light

Power button and light

Optional battery module bay (2)
Power supply status lights
Ethernet port and status light (2)

Power supply (2)

Power socket (2)
Fibre channel port and status light (2)
RAID controller module and status light (2)

Cooling module (2)

UPS interface port (2)
The system identier light turns on if a problem is detected. You can also turn it on manually by pressing the button. This indicator is useful for locating a particular unit in a rack with multiple systems. A duplicate system identier button and light are on the front panel. (See Using Status Lights and Other Indicators on page 46 for more information.)
RAID controller card, status lights, and reset button
The top controller manages the seven drive modules on the left side of the system (when facing the unit); the bottom controller manages the seven drive modules on the right. Use the reset button to restore the factory settings.
Cooling module and status light
A redundant, hot-swappable cooling module cools the system.
Press to turn on the system.
Battery module bay and cover
You can install optional battery modules to protect data in each RAID controllers cache. A cover protects the two battery spaces if battery modules are not installed.
Power supply and status lights
A redundant, hot-swappable power supply provides power for the entire system. (See Using Status Lights and Other Indicators on page 46 for more information.)
Ethernet port and status light
Use the Ethernet port to connect to a network and manage the system remotely.
Power socket (in each power supply)
Connect the power cord here. The cord is held in place by a special clip.

UPS interface port

Connect an uninterruptible power supply (UPS) to this port.
Fibre channel port and status light
Use this port to connect each group of seven drive modules to a host bus adapter card located in a server or desktop system using a bre channel cable.
Your System at a GlanceMounting Hardware

A2 E A1

Front mounting screws (2) D

Rear securing screws (2)

Long screws (8 + extras) (10-32 x 3/4") B Long screws (8 + extras) (M6 x 20mm)

Mounting template

Short screws (6 + extras) (M5 x 6mm)
Shoulder bolts (6 + extras) (M5 x 14mm)
Washers (6 + extras) (M5 x 1mm)
Nuts (6 + extras) (M5 x 4mm)

Cage nuts + extras (if needed) (M6)

Hex key wrench (5mm)

Enclosure key (for security lock on front panel)
L-shaped brackets (A1 and A2)
Two large L-shaped brackets attach to the front of the four-post rack and support the system.
Bracket extenders for a 24- to 29-inch rack (B)
These extenders attach to the brackets A1 and A2 and to the rear rail of the standard fourpost rack.
Bracket extenders for a 29- to 36-inch rack (C and D)
Connect these two extenders and attach them to the brackets A1 and A2 and to the rear rail of the deep four-post rack.
Solid bar for connecting bracket extension pieces (E)
Use this bar to fasten extenders C and D for a deep rack.
Screws, nuts, washers, and hex key wrench for mounting the system
Use this hardware to secure the system to the rack and to connect the bracket extenders. See Assemble the Brackets and Extenders on page 27 for more information.
Use this template to help mount the brackets squarely to the rack. See Assemble the Brackets and Extenders on page 27 for more information.
Preparing to Install Xserve RAID in a Rack
Before you install the system in a rack, carefully consider the placement of the unit in its rack and several other factors in the infrastructure that will keep the system operating efciently.
Guidelines for Installation To ensure safe and smooth operation of your Xserve RAID system, its essential that you choose an appropriate location for the system in its rack, and provide an appropriate operating environment and adequate power for all components in the rack. In addition, the system requires special handling because of its weight. As you plan for installation, follow these guidelines to ensure that the system and its environment are safely and appropriately positioned for efcient operation and service.
Precautions for Handling the System
When congured with a full set of drive modules, the system weighs approximately 100 pounds. Take the following precautions to avoid problems or potential injury as you handle the Xserve RAID system. m Never try to unpack, lift, or carry the system by yourself. Always have another person available to help move or lift it. m Prepare a at, sturdy surface before removing the system from its packaging. The table or cart that will hold the system should be as close as possible to the systems carton. m Both people should follow these guidelines to lift or move the system: m Stand with your legs shoulder-width apart to maintain balance. m Breathe deeply and tighten your stomach muscles to increase support for lifting. m Bend at your hips and knees, not at your waist. m Use your leg muscles to lift.

m Lift with a smooth motion; dont jerk the load up or down. m Keep the system close to your body and at waist level to lessen the load on your back. m Maintain body alignment while lifting, so that your back, ears, shoulders, and hips are in line and your eyes and feet are facing the system. m To turn while holding the system, use your feet; dont twist your back or torso.
Choosing the Systems Location in the Rack
The Xserve RAID system is designed for use in a four-post rack or cabinet. The rack must be 19 inches wide; it can vary in depth from 24 to 36 inches. Do not try to install an Xserve RAID system in a two-post, or telco-style, rack. The system cannot be mounted safely in a two-post rack.

Important

When determining where to place the system in a four-post rack, keep the following points in mind: m Because of the systems weight, you may want to install it at or below the middle of the rack. m Measure the height needed in the rack (3U, or 5.25 inches at minimum). m Also measure the depth of the rack and the distance between the back panel of the system and the rear rail of the rack. This measurement will help you determine which of the bracket extenders to use when mounting the system in the rack. m Air to cool the system ows from front to back. Be sure not to cover any of the ventilation holes in the front or back panels of the unit. Consistent airflow is essential to keep the system operating efciently.
Remove the clear plastic film that covers the front so that airflow is not restricted.
Do not block the air flowing through the unit.
m Allow room at the front and back of the system for service. Leave at least 36 inches clear in front of the system, so that you can easily swap drive modules and remove the system from the rack if necessary. Leave 24 to 30 inches clear behind the system to install or exchange components.

Chapter 2

m For a rack that has multiple devices, you may want to prepare a list of all equipment in the rack and the requirements for each unit. Such a list should include the following information:
Component Power needed Clear area front / back Height in rack Temperature range Other
Xserve RAID Server 1 Server 2

Managing Cables

Your Xserve RAID system uses three to six cables and two power cords. Its a good idea to determine how these cables and cords will be arranged at the rear of the system and where the cables will be routed to connect to a host system. See Connecting Xserve RAID to a Host System or Switch on page 38 for details about connecting cables.

Operating Environment

The operating environment for the systems rack must meet certain requirements: m Verify that the temperature range of the racks location is within the limits established for the system and all other components. m Make certain that the racks location has adequate ventilation to maintain the necessary temperature range. This is particularly important for a rack that is enclosed in a cabinet. m If multiple components are installed in the rack, consider additional cooling to assure efcient operation of the system and other equipment.

Security

To ensure the security of the system and rack, note the following: m Determine that the racks location is secure and that only authorized staff members or technicians can gain access to this location. m If using a cabinet that is not stored in a secure room, be sure that the cabinet can be locked securely and that access to it is limited to authorized staff. m Develop a plan for distributing and controlling keys to the racks location and access codes that will allow others to manage the system over the network. Keep the plan updated with names of key staff and relevant emergency information and procedures. m Store a copy of essential system access information in a safe place away from the systems location. m Store the Xserve RAID documentation and related materials in a central location and inform key staff of that location. Also post electronic documents on network locations to which users of the system will have access.
The Xserve RAID system is specically designed for rack mounting. It is not designed for use as a desktop system. You can install the system in a four-post cabinet or rack that is 19 inches wide and between 24 and 36 inches deep. The system is 5.25 inches (3U) high.

Four-post cabinet rack

Four-post open rack
The brackets and screws necessary to attach the system to a four-post rack with threaded holes are included with your system. If your rack has square, unthreaded holes, you may need to insert cage nuts (some are provided with the system) into the appropriate holes before attaching the system to the rack.

Determine the exact position where you want to attach the bottom edge of the system and mark it on one side of the rack. To be sure there is room for the system at this position in the rack, the space available must be at least 5.25 inches from bottom to top. The distance between holes may vary somewhat on racks made by different manufacturers. Use the template included with the system to mark the same spot on the other side of the rack. Measure the depth of the rack. m If your rack is 24 to 29 inches deep, use brackets A1 and A2 and the medium-length extenders with a three-hole lip at one end (item B in the illustration below).

Short screws

A1 and A2
m If your rack is 29 to 36 inches deep, combine the shorter extender with a three-hole lip at the one end (item C in the illustration below) and the longest piece (with no lip; item D in the illustration), using the solid bar (item E in the illustration). This combination creates an extender long enough to reach the rear of a deep rack.
Mounting template A1 and A2

Shoulder bolts

Washers
For a rack exactly 29 inches deep, try the A and B combination of bracket and extender; if that does not t, use the A, C, D, and E combination.
Prepare the System for Installation
Follow these steps to prepare the system hardware for installation.
With a second person, unpack the system from its carton and place it on the table or cart. Follow the instructions in Unpacking the System on page 10. Write down the serial number on the systems back panel and the two Ethernet MAC numbers on the RAID controller modules (at the center of the back panel). You will need these numbers when you set up and use the Xserve RAID software.
Installing the System To install the system in the rack, you m assemble the brackets m attach the brackets to the rack m rest the system on the brackets and secure it to the rack
Assemble the Brackets and Extenders
Follow these steps to assemble the brackets and extenders for the depth of your rack.
For a Rack 24 to 29 Inches Deep
Gather the two large brackets (items A1 and A2) and the two longer extenders (item B in the illustration below), along with the necessary screws: m six short screws for assembling two brackets and extenders m four long screws for securing the brackets to the rack m two mounting screws for attaching the system to the rack
Place the cut-out area of the extender (B) over the three posts that extend from the wider side of the bracket A.

Pass three of the short screws through the slot in part B and attach them to part A1 or A2. Tighten them securely. Make sure part B fits under the tabs on part A1 or A2.

A1 or A2

Fasten the bracket and extender together using three short screws and tighten the screws. Note that you can still slide the extender backward and forward.
Fit the assembled pieces into the rack so that the extenders lip is near the rear rail and the lip of bracket A points toward the outer edge of the rack at the front rail.
Adjust the mounting bracket assemblies to fit the rack. The flanges at both ends should be on the outside of the rack posts.
The orientation of bracket A determines on which side of the rack it belongs. The lower part of this L-shaped bracket faces inward (to support the system). The posts on the upper part of the bracket face outward and the extender is on the outside of the bracket. (In the illustration, bracket A1 goes on the left as you face the rack; A2 goes on the right of the system.)
Hold one of the A brackets against one rail on the front of the rack at the position you marked, then place the metal template over the post on the front of the bracket. Have the other person hold the second A bracket at the position marked on the other front rail and place the metal template over the post on the front of the second bracket. The brackets must be attached to the rails at a 90-degree angle to ensure that the Xserve RAID system is mounted securely. Use the template to guide you in attaching the brackets correctly.
Temporarily place the mounting template over the two posts on parts A1 and A2.
Attach each bracket assembly to the front rack post with two of the screws provided. Tighten the screws and then remove the template.
Securely fasten two long screws in the top and bottom holes of bracket A on each of the racks front rails. With one person on each side of the rack, slide the extender backward until its lip is even with the rear rail of the rack. At the back of the rack, use two long screws to secure the extender to the rear rail. Put the screws in the top and bottom holes in the extender. (If the racks holes do not line up with the top and bottom holes in the extender, put the screws in holes that are aligned with the extender, but be sure to attach both screws.)
Attach each bracket assembly to the rear rack post with two of the screws provided.
Repeat this procedure for the second bracket and extender.
For a Rack 29 to 36 Inches Deep

Repeat this assembly procedure for the second bracket and extender pieces.
Mount the System in the Rack
When the brackets are secured to the rack, you can put the system in the rack. Follow these steps to mount the Xserve RAID system in the rack.
With one person on each side of the system, lift it so that the bottom of the unit is level with the lower part of the bracket. Slide the system into the rack.
With one person supporting each side of the unit, slide it into the rack.
Slide the unit back in the rack until it engages the small posts on the L-brackets.
Use the two rack screws to secure the system to the front rail of the rack.
Be sure to tighten the rack screws so that the system is rmly attached
to the rack. You can use the Phillips screwdriver to tighten these screws.
Parts of the unit may be covered by clear plastic film that protected it during shipment. Remove the film.
Insert and tighten the two mounting screws to secure the unit to the rack.
Secure the System in the Rack or Cabinet
Once you have mounted the system and attached it to the front of the rack, you must secure it at the back. Follow these steps to secure the system at the back.
At the back of the system, locate the small hole in the lip that extends beyond the back panel on the side of the enclosure. This hole is next to the mounting bracket. Insert a small, rear-securing screw on the inside of the lip, guide it into the threaded hole in the mounting bracket, and tighten the screw.
Secure the unit to the rack by inserting a small screw through each of the holes located on both sides on the back of the unit. Tighten the screws to attach the unit to the L-bracket assembly.
Insert and tighten a small screw on the other side of the system.
Once the system is mounted and secured in the rack, you can connect it to a host server or computer. Note: The user-serviceable parts described in this manual can be installed or replaced while the system is mounted in the rack. See Chapter 6, Installing or Replacing Components, on page 49 for details.
Moving the Xserve RAID System If you need to move the system after you have mounted it in a rack or cabinet, you must follow the precautions listed below.
Warning Make certain that the system is securely fastened to the rack or cabinet and that all components are rmly in place before attempting to move the rack or cabinet. If the system or components are not secure, moving the system could result in injury or damage to the hardware.
Before moving a rack or cabinet that contains the Xserve RAID system: m If feasible, remove the system from the rack and remount it after moving the rack or cabinet; always use two people to hold or carry the system. m If you cannot remove the system, carefully secure the rack screws on the front and rear of the system. m Check the fastening tabs or handle on each component on the back panel to be sure that all are rmly closed and in place.

Obtaining Additional Replacement Components If you need an additional component for the system, you can obtain it from an Appleauthorized dealer. Apple Drive Modules are available at the Apple website: www.apple.com. Information about replacement parts and optional components is available at www.apple.com/xserve.
Xserve RAID provides a powerful, versatile, and cost-effective answer to the growing storage requirements of graphics and video production companies, email and web services, educational le sharing, and other businesses. You can congure the Xserve RAID system in a variety of ways, using up to 14 drives in two groups of 7 drives. Each group has a separate RAID controller. The Xserve RAID hardware can support RAID levels 0, 1, 0+1, 3, or 5, and you can use the RAID software in Mac OS X to create the hybrid levels 10, 30, or 50. See About RAID Storage on page 58 for descriptions of RAID levels and storage methods.
Setting Up the Xserve RAID System This manual includes an explanation of the RAID technology and instructions for conguring your Xserve RAID system. The setup procedure involves these steps: m installing the hardware and setting up network and host connections m determining the RAID levels, the number of RAID sets, and the congurations for your storage needs m installing or rearranging Apple Drive Modules in the Xserve RAID system for the conguration youve selected, if necessary m conguring RAID sets using the RAID Admin software supplied with the system (and possibly also using Disk Utility in Mac OS X to augment sets) m formatting the Xserve RAID sets with a le system on the host system using Disk Utility
Installing Xserve RAID Hardware and Software
Follow the instructions in Chapter 3, Mounting Xserve RAID in a Rack, on page 23 and Chapter 4, Connecting Xserve RAID to a Host System and a Network, on page 37 for hardware installation and connections. These include m installing the system in a rack or cabinet
m installing the Apple Fibre Channel PCI Card in a host system and connecting it to the Xserve RAID system using bre channel cables m connecting to an Ethernet network You use the RAID Admin software to congure RAID storage on your system. Use the Xserve RAID CD, supplied with the system, to install RAID Admin on any computer or server that you want to use for remote administration of the system. See the document Using RAID Admin and Disk Utility on the CD that came with your system for details.
About RAID Storage RAID, or Redundant Array of Independent Disks, is a data-storage technology that spreads data across multiple drives. This technology provides several benets over a single large hard disk, including m data redundancy for protection and availability m higher performance as a result of reading or writing on several drives simultaneously m scalability for expansion of storage These benets are especially useful in a server environment where downtime is very expensive, drive performance is critical to server performance, and the opportunity to increase storage capacity quickly and easily is essential.

RAID 1

Mirror Mirror
If two modules are on each controller, you can create one RAID set on each side.

Mirror

RAID 3 and 5 Schemes
You can congure the system using RAID 3 or 5 with or without a drive module designated as a hot spare. (A hot spare is a drive that remains ready to replace any other drive that fails. The RAID controller automatically rebuilds data from the failed drive on the hot spare.)
You can use RAID 3 or 5 with four drive modules only on one Xserve RAID controller.

RAID 3 or 5

RAID 3 or 5 Hot spare
RAID 0+1 and RAID 10 Schemes
On the Xserve RAID system, RAID 0+1 is a stripe of mirrored pairs. An example of this conguration is shown at the top of the illustration below. Using a combination of the hardware controller and software, you congure the system using RAID 10 with two drive modules on each controller. The drive modules on each side can be either striped together or mirrored.

RAID 0+1

RAID 0 +1
Use software RAID to stripe two RAID sets together. RAID 10 (alternate configuration)
Use software RAID to mirror two RAID sets.
A System With Seven Drive Modules
You can use the following RAID levels on an Xserve RAID system with seven drive modules: m RAID 0 m RAID 1 m RAID 3 m RAID 5 m RAID 30 m RAID 50 Note: This list is representative but does not include all possible schemes.
You can use RAID 0 several ways, depending on how you divide the drive modules across the RAID controllers. If all of the modules are on one RAID controller, all drives can be striped together.
If four modules are on one controller and three modules are on the other, the drives on each controller can be striped together.
You can use RAID 1 several ways, depending on how you divide the drive modules between the RAID controllers, how you choose to mirror the drives, and where you put the module you use as a hot spare. The hot spare is a drive that the RAID controller automatically uses to rebuild data if another drive fails. The hot spare is only available to mirrored pairs on the same controller. If all the drive modules are on one controller, the drives can be mirrored in pairs, and the hot spare will be available to all three pairs.

Apple Drive Module Specifications m ATA-100 m Hot-swappable modules (compatible with Xserve) m Temperature sensor m SMART drive support
Dimensions and Operating Environment

Dimensions

m m m m m
Height: 133 mm (5.25 in.) (3U) Width: 483 mm (19.0 in.) with mounting brackets Depth: 442 mm (17.4 in.) Drive module weight: 2 lbs. (0.9 kg) Weight: 60100 lbs. (2745 kg), depending on conguration Weight depends on the number of drive modules installed in the system. Operating temperature: 10 to 35 C (50 to 95 F) Storage temperature: 40 to 47 C (40 to 116.6 F) Relative humidity: 20% to 80% (noncondensing) Altitude maximum: 3048 meters (10,000 feet)

Operating environment

m m m m
Ethernet Specifications m IEEE 802.3 compliant m Maximum cable length: 100 meters (m) (328 ft) m Connectors: RJ-45 for 10Base-T and 100Base-TX m Media, 10Base-T: Category 3 or higher UTP on 2 pairs up to 100 m m Media, 100Base-TX: Category 5 UTP on 2 pairs up to 100 m m Channel speeds: IEEE Auto Negotiation of 10Base-T and 100Base-TX
UPS Interface Specifications m DB-9 interface, compatible with APC uninterruptible power supply m UPS interface pinouts:

Appendix A

m 9-pin D connector
m Pin signals 1: (CD) UPS battery low (20%) <from UPS to Xserve RAID> 2: Not used 3: Not used 4: (DTR) handshake option <from Xserve RAID to UPS> 5: Ground 6: Not used 7: (RTS) reserved 8: (CTS) Line failswitch to UPS battery <from UPS to Xserve RAID> 9: (RI) reserved m Serial cable to UPS should be number 940-0020B (or comparable cable) for APC basic signaling

Specifications

Power Supply Specifications

AC line input

m 450 watt ( W ) total power capacity for each power supply (system uses a maximum of 450 W total) m 100127/200240 volts ( V ) AC; 7.6/3.8 amps (A); 50/60 hertz (Hz) per power cord m Fully redundant, load-sharing m Hot-swappable m Monitoring of fan, power, and AC operation m Power factor correction
Cooling Module Specifications m Temperature sensor m 12V operation m Hot-swappable m Fan speed monitoring
Battery Module (Optional) Information You can install two optional battery modules to maintain data in the RAID controllers cache. These batteries are available from an Apple-authorized dealer. m Charges from systems power supply when installed and system is turned on m Support for two battery modules
Safety, Maintenance, and Ergonomics
Important Safety Information For your own safety and that of your equipment, always take the following precautions. The only way to disconnect power completely is to unplug the two power cords. Make sure at least one end of each power cord is within easy reach so that you can unplug the Xserve RAID when you need to.

Power Supply The power supplies in your system are high-voltage components and should not be opened for any reason, even when the system is off. If a power supply needs service, contact your Apple-authorized dealer or service provider.
Cleaning Your Equipment Follow these general rules when cleaning the outside of your system:

Appendix B

m Use a damp, soft, lint-free cloth to clean the exterior. Avoid getting moisture in any openings. m Dont use aerosol sprays, solvents, or abrasives. m To clean the case, shut down the system completely and then disconnect the power plugs. (Pull the plug, not the cord.)
Apple and the Environment Apple recognizes its responsibility to minimize the environmental impacts of its operations and products. For more information, go to www.apple.com/about/environment.
Health-Related Information About Computer Use In most instances, you will probably set up and administer your system from a remote location, such as a computer on the systems network. Whether you work at a remote computer or at the system rack for extended periods, take care to avoid muscle soreness, eye fatigue, or other discomforts associated with computer use. If feasible in the system location, use an adjustable chair that provides rm, comfortable support. The back of the chair should support your lower back (lumbar region). Follow the manufacturers instructions for adjusting the backrest to t your body properly.

K Apple Computer, Inc.

2003 Apple Computer, Inc. All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Apple. Your rights to the software are governed by the accompanying software license agreement. The Apple logo is a trademark of Apple Computer, Inc., registered in the U.S. and other countries. Use of the keyboard Apple logo (Option-Shift-K) for commercial purposes without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws. Every effort has been made to ensure that the information in this manual is accurate. Apple is not responsible for printing or clerical errors. Apple Computer, Inc. 1 Innite Loop Cupertino, CA 95014-2084 408-996-1010 http://www.apple.com Apple, the Apple logo, FireWire, the FireWire logo, Mac, Macintosh, and Power Mac are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. Xserve is a trademark of Apple Computer, Inc. Other company and product names mentioned herein are trademarks of their respective companies. Mention of third-party products is for informational purposes only and constitutes neither an endorsement nor a recommendation. Apple assumes no responsibility with regard to the performance or use of these products. Simultaneously published in the United States and Canada.

Xserve RAID

This high-performance, high-availability storage system delivers data protection and enormous capacityup to 10.5 terabytes at a groundbreaking price.

Key Features

Massive storage capacity. Fourteen drive bays hold up to 10.5TB of storage1 with 750GB 24/7 enterprise-class rated, high-capacity 7200-rpm drives with 16MB on-drive cache. Independent Ultra ATA drive channels maximize bandwidth and availability. High-speed throughput. The dual independent 2Gb Fibre Channel host interface transfers terabytes of data at up to 400MB/s.2 Superior data protection. A high-availability architecture and dual independent RAID controllers support RAID levels 0, 1, 3, 5, and 0+1. Maximum uptime. Xserve RAID keeps running with redundant, hot-swappable power supplies and cooling modules. Remote management. The Java-based RAID Admin application makes it easy to set up, manage, and monitor Xserve RAID systems from virtually anywhere on the Internet. Cross-platform compatibility. Xserve RAID ts into Mac, Windows, Linux, Solaris, NetWare, and mixed-platform environments and is certied for compatibility with leading storage infrastructure solutions.3 Comprehensive service and support. To ensure rapid issue resolution for your server and storage deployments, choose from a full range of AppleCare products designed to provide integrated expert support.
With massive capacity and high-availability features previously available only in much more expensive storage systems, Xserve RAID oers unmatched capabilities for an unprecedented price. Tiered storage environments can take advantage of its extreme versatility. Redundant components provide the continuous availability required for business-critical applications. The advanced Xserve RAID architecture delivers fast access to storage without compromising data integrity. Dual independent RAID controllers provide protected storage with unprecedented performance. In fact, Xserve RAID boasts an average read throughput of up to 380MB/s4 and write throughput of up to 301MB/s.5 While throughput rates are measured dierently in video applications, Xserve RAID is fast enough to support real-time, uncompressed, high-denition (HD) and multiple-stream (SD) video editing without dropping a frame. With pricing at $1.31 per gigabyte for 10.5TB of storage, Xserve RAID is aordable enough for near-line storage deployments. A platform-independent design and Java-based administrative tools make it easy to t Xserve RAID into heterogeneous environments. Xserve RAID is qualied for use with Mac, Windows, Linux, Solaris, and NetWare systems, and Apple has worked with leading storage infrastructure vendors to certify it for integration with existing Fibre Channel hardware and data management solutions.3 Integrated remote monitoring and notication features and hot-swappable components ensure that your data is online and available. And with intuitive tools for quick conguration of protected storage volumes, this revolutionary RAID solution delivers ease of use that could come only from Apple.

Xserve RAID Congurations

Order number M9721LL/A MA208LL/A* 3.5TB1 1.5TB1 3TB1 Seven 500GB drives1 8MB per drive 512MB per controller MA209LL/A* 7TB1 3TB1 6TB1 Fourteen 500GB drives1 8MB per drive 512MB per controller Total available storage 1TB1 RAID 0 Usable storageRAID 1 Usable storage RAID 3 and 5 Apple Drive Modules On-drive cache Controller cache Expansion Also included Software Service and support 500GB1 750GB1 Four 250GB drives1 8MB per drive 512MB per controller
Fourteen drive bays with independent Ultra ATA channels for up to 10.5TB of storage1 Mounting screws with M5, M6, and 10/32-inch threads; caged nuts; two agencyapproved 12-foot power cables Xserve RAID Admin Tools CD 90 days of telephone support and one-year limited warranty; optional extended service and support products
Specication Sheet Xserve RAID
*250GB and 750GB drives are also available in 7- and 14-drive congurations.
Third-party certications Leading storage infrastructure vendors have certied Xserve RAID for integration with existing Fibre Channel hardware and data management solutions, including: QLogic Brocade LSI Logic Cisco VERITAS ATTO Technology Emulex McData In addition to Mac OS X and Mac OS X Server, Xserve RAID has been qualied for use on these operating systems: Windows Server 2003 Family Windows 2000 Professional Edition Windows 2000 Server Windows 2000 Server, Advanced Windows 2000 Server, Datacenter Sun Solaris SPARC v10 and 9 Sun Solaris X86/X64 v10 (64-bit) Red Hat Enterprise Linux v2.1, v3, and v4 Novell NetWare v5.x and v6.x and Cluster Services SUSE Enterprise Server 9

Technical Specications

Storage Fourteen drive bays on independent Ultra ATA channels supporting up to 10.5TB of total storage1 using Apple Drive Modules, available in the following capacities: 250GB 7200-rpm Ultra ATA with 8MB disk cache 500GB 7200-rpm Ultra ATA with 8MB disk cache 750GB 7200-rpm Ultra ATA with 16MB disk cache and rotational vibration safeguard Empty drive bays contain blank modules Support for reading SMART data from Apple Drive Modules for prefailure notication RAID controllers and cache memory Dual independent controllers, each with an environment management coprocessor for outof-band remote management and monitoring 512MB of cache memory per controller (1GB total) Cache Backup Battery Modules (sold separately) for over 72 hours of memory protection RAID operation Support for RAID levels 0, 1, 3, 5, 0+1, 10, 30, and 50 (10, 30, and 50 using host-based software RAID) Support for multiple RAID sets and multiple hosts Background RAID set creation; automatic variable background rebuilding;6 online expansion LUN slicing; global drive hot sparing (per RAID controller) Fibre Channel storage-to-host connection Dual 2Gb Fibre Channel ports (SFP); 200MB/s throughput per channel with guaranteed bandwidth (400MB/s full duplex)2 Host connectivity using Apple 2Gb or 4Gb Fibre Channel PCI cards (sold separately) or compatible third-party PCI cards Support for point-to-point, loop, and switched fabric topologies Dual 10/100BASE-T Ethernet interfaces for remote management
Apple Fibre Channel PCI cards (sold separately) Dual- or quad-channel 2Gb or 4Gb Fibre Channel PCI cards with SFP Fibre Channel ports Two or four 2.9-meter Fibre Channel copper cables with SFP transceivers; compatible with short- and long-haul SFP transceivers and ber-optic cables Cooling Redundant, hot-swappable cooling modules with self-regulating speeds and front-to-back cooling Environmental monitoring system for automatically maintaining optimal ambient temperature Electrical Redundant, load-sharing hot-swappable power supplies (450W); universal input (100V to 240V AC), power factor corrected Maximum input current: 7.6A (100V to 127V) or 3.6A (200V to 240V) Power usage: 300W typical continuous power, 400W maximum continuous power Dual DB-9 serial ports for UPS systems Frequency: 50Hz to 60Hz, single phase Environmental requirements and approvals Operating temperature: 50 to 95 F (10 to 35 C) Storage temperature: 40 to 116 F (40 to 47 C) Relative humidity: 5% to 95% noncondensing Maximum thermal output: 1365 BTUs per hour Maximum altitude: 10,000 feet FCC Class A approved
Xserve. Xserve RAID works seamlessly with Xserve, Apples high-density 1U rack-optimized server. Equipped with Dual-Core Intel Xeon processors, Xserve packs phenomenal power and a rich feature set into an aordable, easy-to-deploy system.
Size and weight Height: 3U rack-optimized, 5.25 inches (13.3 cm) Width: 17 inches (43.2 cm) Depth: 18.4 inches (46.7 cm) Fits EIA-310-D-compliant, industry-standard 19-inchwide four-post racks from 24 to 36 inches deep; deeper racks require third-party extender 60 to 110 pounds (27 to 45 kg), depending on conguration

Xsan. Xserve RAID and Xsan create an enterpriseclass storage solution. Xsan, Apples 64-bit SAN le system for Mac OS X, allows computers to concurrently access shared storage over a highspeed Fibre Channel connection. Xsan streamlines workgroup collaboration and bandwidth-intensive workows and increases the exibility and scalability of server deployments.
1For hard drive capacity measurements, 1GB = 1 billion bytes and 1TB = 1 trillion bytes; actual formatted capacity less. Maximum

For More Information

For more information about Xserve RAID, Xserve, Xsan, and other Apple server solutions, visit www.apple.com/server. For information on AppleCare service and support products, visit www.apple.com/ support/products.
capacity of 10.5TB achieved through use of fourteen 750GB Apple Drive Modules. Usable capacity depends on drive conguration and RAID level. 2Actual rates will vary depending on drive conguration and RAID level. 3See www.apple.com/xserve/raid for more information on third-party certications and qualications. 4Testing conducted by Apple in November 2006 using preproduction Xserve RAID systems. Iometer (version 2004.07.30) testing of raw disk throughput on Xserve RAID in both Mac OS X v10.4.8 and Windows XP SP2 environments has shown that Xserve RAID is capable of delivering an average of up to 380MB/s read throughput, and an average of up to 301MB/s write throughput, on 7 x 750GB and 14 x 750GB raw disk congurations utilizing both RAID controllers. Mac OS X v10.4.8 Xserve RAID testing conducted using a directly attached Mac Pro 2.0GHz system; Windows XP SP2 Xserve RAID testing conducted using a directly attached Boxx 7300 Series dual-processor AMD Opteron 2.6GHz system. Since MBR disks support partition sizes up to only 2TB, sliced arrays were used for Windows XP tests. Performance tests are conducted using specic computer systems and reect the approximate performance of Xserve RAID. 5For additional information on Xserve RAID performance in an Xsan environment, please refer to the Xsan Deployment and Tuning Guide, which provides examples for conguring and optimizing Xsan storage volumes, at www.apple.com/server/documentation. 6Host operating system limitations apply. 2007 Apple Inc. All rights reserved. Apple, the Apple logo, Mac, Mac OS, Xsan, and Xserve are trademarks of Apple Inc., registered in the U.S. and other countries. AppleCare is a service mark of Apple Inc., registered in the U.S. and other countries. Intel is a trademark of Intel Corp. in the U.S. and other countries. Java is a trademark or registered trademark of Sun Microsystems, Inc., in the U.S. and other countries. Intel is a trademark of Intel Corp. in the U.S. and other countries. Other product and company names mentioned herein may be trademarks of their respective companies. Product specications are subject to change without notice. February 2007 L311424C