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This chapter provides information to help you troubleshoot problems with your Dell PowerVault 660F and 224F storage system and its components. It includes a summary of common system faults along with corrective actions, including instructions for troubleshooting the system, hard-disk drives, Dell Fibre Disk RAID Controllers, advanced cooling modules (ACMs), and power supplies. . This chapter focuses primarily on hardware-based troubleshooting. For more information on troubleshooting using configuration and management software, see the Dell OpenManage Array Manager User’s Guide. For help in identifying system components, see the illustrations in Chapter 1, “Introduction.” For help in using light-emitting diode (LED) indicators to verify system and component health, see Chapter 4, “Connecting and Operating Your Storage System.” . Static electricity can harm delicate components inside your system. To prevent static damage, discharge static electricity from your body before you touch any of your computer’s electronic components, such as the microprocessor. You can do so by touching an unpainted metal surface on the system chassis. As you continue to work inside the system, periodically touch an unpainted metal surface to remove any static charge your body may have accumulated. You can also take the following steps to prevent damage from electrostatic discharge (ESD): . When unpacking a static-sensitive component from its shipping carton, do not remove the component from the antistatic packing material until you are ready to install the component in your system. Just before unwrapping the antistatic packaging, be sure to discharge static electricity from your body. support.dell.com Troubleshooting 8-1 . When transporting a sensitive component, first place it in an antistatic container or packaging. . Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads and workbench pads. . Table 8-1 summarizes some common fault indicator patterns and refers you to sections in this chapter for corrective actions. . . . No indicators are lit Shelf fault indicator and no other indicators lit Shelf fault indicator and drive fault indicator (see Table 4-3) are lit Fault indicator lit on hard-disk drive Shelf fault indicator and power supply fault indicator lit Shelf fault indicator and ACM fault indicator lit Shelf fault indicator and LS module fault indicator lit Fibre Channel RX indicators on I/O modules not lit Shelf fault indicator lit and Dell Fibre Disk RAID Controller not ready indicator lit or ready indicator not lit See “Troubleshooting the Power Supply,” found later in this chapter. Use Dell OpenManage Array Manager to check the system temperature. See the Dell OpenManage Array Manager User's Guide for more information. If a temperature fault is not indicated, see “Troubleshooting the System,” found in the next section. See “Troubleshooting the Fibre Channel Hard-Disk Drives,” found later in this chapter. See “Troubleshooting the Fibre Channel Hard-Disk Drives,” found later in this chapter. See “Troubleshooting the Power Supply,” found later in this chapter. See “Troubleshooting the Advanced Cooling Module,” found later in this chapter. See “Troubleshooting the LS Module,” found later in this chapter. See “Troubleshooting the I/O Module,” found later in this chapter. See “Troubleshooting the Dell Fibre Disk RAID Controller,” found later in this chapter. 8-2 Installation and Troubleshooting Guide . This section is used for troubleshooting when the shelf fault indicator is lit but no other fault indicators are lit. When the PowerVault 660F or 224F is first turned on, the unit performs a power-onself- test (POST), which checks all the components. During POST, all of the indicators for each hard-disk drive blink briefly. The green online indicators turn off for a short time, then turn back on, and then remain illuminated. The green ready indicator flashes slowly as the drives begin to spin. Following POST, normal LED status conditions are displayed (see Chapter, “Introduction,” 1 for LED descriptions). The PowerVault 660F and 224F audible alarm is preset to the disabled state. To enable the alarm, see the Dell OpenManage Array Manager User’s Guide. Once enabled, the audible alarm will sound whenever the shelf fault LED lights. The optional Dell PowerVault Fibre Disk RAID Controller monitors the internal Fibre Channel hard-disk drives connected to the midplane board on PowerVault 660F systems. To troubleshoot the storage system, perform the following steps: 1. Is one of the following events occurring? . A shelf fault LED is lit. . An audible alarm is sounding. Yes. Check for other fault indicators on both the front and back of the module. If any other fault indicators are lit, see Table 8-1 for instructions. If there are two LS modules in the unit, then both LS module shelf fault indicators should be lit. If no other fault indicators are lit, perfor...