User manual APPLE XSERVE RAID

[. . . ] Xserve RAID User's Guide Includes hardware setup and expansion, basics of using RAID, and important safety information for Xserve RAID systems K Apple Computer, Inc. © 2003 Apple Computer, Inc. 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. [. . . ] Status lights on the front and back panels indicate network connection, system activity, and drive module use. See "Using Status Lights and Other Indicators" on page 46 for more information. Detailed instructions for configuring RAID storage and management software are provided in the document "Using RAID Admin and Disk Utility" on the CD that came with your system. 45 Turning Off the System You can shut down the Xserve RAID system using the admin software or the power button on the system's back panel. Do not pull out the power cords to turn off the system. Important Before shutting down, be sure you have unmounted the drives from your OS. Shutting Down From a Remote System Using Software From the host system or a remote computer, use the RAID Admin application to shut down the system. Follow these steps to shut down the system. 1 Use the RAID Admin shutdown command to shut down. To turn off all power to the system, you must disconnect the power cords. Before removing or replacing a RAID controller, use the admin software or power button to shut down, and disconnect the power cords. Important Shutting Down With the Power Button You can turn off the system by pressing and holding the power button on the back panel for 5 seconds. Using Status Lights and Other Indicators The Xserve RAID system has a number of built-in sensors that detect and report essential information, such as power, temperature, and the condition of several key components. You can monitor the system's operation using the lights on the unit or using the remote monitoring tools. The purpose of each system status light is listed in the table below. Icon Indicator Color Description ® Power White On and OK Blinking indicates standby mode Lock is engaged Security lock Yellow 46 Chapter 5 Icon Indicator Color Description System identifier Yellow (solid or blinking) Indicates a hardware error in the system or that someone has turned on the light manually; check the monitoring software for more information. OK Failure RAID controller (one for each group of seven drive modules) Power supply Battery module Green Red (See chart below) Green Red Green Red Green Red Blue Green Blinking blue No light Green Yellow/green flash Yellow Red (See chart below) OK Failure OK Failure OK Over temperature Two rows of 23 LEDs show level of fibre channel activity on each host channel Two LEDs indicate a link is established Disk activity No disk activity Good Rebuilding Drive to be serviced (prefailure condition) Problem or failure No hard disk in the module Press to turn off the audible alarm that signals an error condition Cooling module Temperature Host activity Fibre channel link Drive module (left LED) Drive module (right LED) Drive module (blank) No color (No LED) -- Mute button Using the Xserve RAID System 47 The system's two power supplies each have three LEDs that indicate status. These indicators are listed in the table below. Power Supply Condition Green LED Yellow LED Red LED No AC power to either power supply Power supply failure or no AC power to this power supply AC power present and standby outputs on Power supply DC outputs on and OK Current limit Predictive failure Off Off Blinking On On On Off Off Off Off Off Blinking/on Off On Off Off Blinking Off If the System Has a Problem If you discover a problem with the Xserve RAID system, you can assess the situation and often solve the problem from a remote computer. You can use the RAID Admin application from a Mac OS X computer to see the status of several system attributes. For more information about this software and other monitoring tools, see the document "Using RAID Admin and Disk Utility" on the CD that came with your system. If you have access to the system itself, you can use the buttons and indicator lights on the front and back panels to change the system's status. m Mute (front and back panel): Press to turn off the alarm that signals an error condition. Check the management software for information about the problem; see the document "Using RAID Admin and Disk Utility" on the CD that came with your system for details. m System identifier (front and back panel): This light helps you determine which system in a multiple-unit rack has a problem. The light turns on when the system has a problem; it can also be turned on manually. Press the button next to this light to turn the light off when it's on or on when it's off. If you need to exchange components in the system, see Chapter 6, "Installing or Replacing Components, " on page 49 for instructions. The Apple Support website has the latest troubleshooting information and software updates: www. apple. com/support. 48 Chapter 5 CHAPTER 6 6 Installing or Replacing Components Your Xserve RAID system is designed so that you can install or exchange drive modules, power supplies, and cooling modules while the system is operating. All of these components, as well as the RAID controller modules and optional battery modules, are designed as fieldreplaceable units. About Replacing Components To maintain proper airflow within the Xserve RAID system, follow these guidelines for removing or replacing components. [. . . ] Make sure that the connector matches the port and that you have positioned the connector correctly in relation to the port. m To remove a fibre channel cable from the RAID controller, push in on the connector slightly, then squeeze the release latch and pull out the connector. If the cable does not pull out easily, use a small flat tool, such as a tiny screwdriver or the cover from the card slot on the host system, to squeeze the release latch. If you do, turn your system off immediately and unplug it before cleaning up the spill. [. . . ]