MAP 5800: Light path

Light path diagnostics is a system of LEDs on top of the operator-information panel of the SAN Volume Controller 2145-DH8 node, which leads you to the failed component.

1. Is the System error LED  7 , shown in Figure 1, on the SAN Volume Controller 2145-DH8 operator-information panel on or flashing?
   Figure 1. SAN Volume Controller 2145-DH8 operator-information panel

   
   •  1  Power control button and LED.
   •  2  Ethernet LED.
   •  3  Locator button and LED.
   •  4  Release latch.
   •  5  Ethernet activity LEDs.
   •  6  Check log LED.
   •  7  System error LED.

   NO

   Reassess your symptoms and return to MAP 5000: Start.

   YES

   Go to step 2.

2. (from step 1)
   Press the release latch, as shown in Figure 2, and open the light path diagnostics panel, which is shown in Figure 3.

   Figure 2. Press the release latch

   
   Are one or more LEDs on the light path diagnostics panel on or flashing?

   Figure 3. SAN Volume Controller 2145-DH8 light path diagnostics panel

   

   NO

   Verify that the operator-information panel cable is correctly seated at both ends. If the error LED is still illuminated but no LEDs are illuminated on the light path diagnostics panel, replace parts in the following sequence:

   1. Operator-information panel
   2. System board

   Verify the repair by continuing with MAP 5700: Repair verification.

   YES

   See Table 1 and complete the action that is specified for the specific light-path-diagnostics LEDs. Then, go to step 3. Some actions require that you observe the state of LEDs on the system board. Figure 4 shows the location of the system board LEDs. The fan LEDs are located next to each FAN. To view the LEDs, complete the following actions:

   1. Turn off the node while ensuring that its data is mirrored and synchronized.
   2. Identify and label all the cables that are attached to the node so that they can be replaced in the same port. Remove the node from the rack and place it on a flat, static-protective surface.
   3. Remove the top cover.
   4. See Table 1 and complete the action that is specified for the specific light-path-diagnostics LEDs. Then, go to step 3.

   Figure 4. SAN Volume Controller 2145-DH8 system board LEDs.

   

   Table 1. Diagnostics panel LED.

   LED	Description	Action
   The Error log or Check log LED operator-information panel	An error occurred and cannot be isolated without completing certain procedures.	Plug in the VGA screen and the USB keyboard. Check the IMM2 system event log and the system-error log for information about the error. Save the log if necessary and clear the log afterward.
   System-error LED operator-information panel	An error occurred.	Check the light-path-diagnostics LEDs and follow the instructions. Check the IMM2 system event log and the system-error log for information about the error. Save the log if necessary and clear the log afterward.
   PS	When only the PS LED is lit, a power supply failed.	The system might detect a power supply error. Complete the following steps to correct the problem: Check the power-supply with a lit yellow LED. Make sure that the power supplies are seated correctly and plugged in a good AC outlet. Remove a power supply to isolate the failed power supply. Make sure that both power supplies installed in the server are of the same AC input voltage. Replace the failed power supply.
   	PS + CONFIG When both the PS and CONFIG LEDs are lit, the power supply configuration is not valid.	If the PS LED and the CONFIG LED are lit, the system logs an invalid power configuration error. Make sure that both power supplies installed in the node are of the same rating or wattage.
   OVER SPEC	The system consumption reaches the power supply over-current protection point or the power supplies are damaged.	If the Pwr Rail (A, B, C, D, E, F, G, and H) error was not detected, complete the following steps: Use the IBM Power Configurator utility to determine current system power consumption. For more information and to download the utility, go to http://www.ibm.com/systems/bladecenter/ resources/powerconfig.html. Replace the failed power supply. If the Pwr Rail (A, B, C, D, E, F, G, and H) error was also detected, follow actions that are listed in MAP 5040: Power.
   PCI	An error occurred on a PCI bus or on the system board. Another LED is lit next to a failing PCI slot.	Check the riser-card LEDs, the ServeRAID error LED, and the dual-port network adapter error LED to identify the component that caused the error. Check the system-error log for information about the error. If you cannot isolate the failing component by using the LEDs and the information in the system-error log, remove one component at a time. Then, restart the server after each component is removed. Replace the following components, in the order that is shown, restarting the server each time: PCI riser cards ServeRAID adapter Network adapter (Trained technician only) System board. If the failure remains, contact your IBM® service representative.
   NMI	A nonmaskable interrupt occurred, or the NMI button was pressed.	Check the system-error log for information about the error. Restart the server.
   CONFIG	CONFIG + PS An invalid power configuration error occurred.	If the CONFIG LED and the PS LED are lit, the system logs an invalid power configuration error. Make sure that both power supplies installed in the server are of the same rating or wattage.
   	CONFIG + CPU A hardware configuration error occurred.	If the CONFIG LED and the CPU LED are lit, complete the following steps to correct the problem: Check the microprocessors that were installed to make sure that they are compatible with each other. (Trained technician only) Replace the incompatible microprocessor. Check the system-error logs for information about the error. Replace any component that is identified in the error log.
   	CONFIG + MEM A hardware configuration error occurred.	If the CONFIG LED and the MEM LED are lit, check the system-event log in the Setup utility or IMM2 error messages.
   	CONFIG + PCI A hardware configuration error occurred.	If the CONFIG LED and the PCI LED are lit, check the system-error logs for information about the error. Replace any component that is identified in the error log.
   	CONFIG + HDD A disk drive error occurred.	If the CONFIG LED and the HDD LED are lit, check the system-error logs for information about the error. Replace any component that is identified in the error log.
   LINK	Reserved.
   CPU	When only the CPU LED is lit, a microprocessor failed. When both the CPU and CONFIG LEDs are lit, the microprocessor configuration is invalid.	If the CONFIG LED is not lit, a microprocessor failure occurs, complete the following steps: (Trained technician only) Make sure that the failing microprocessor and its heat sink, which are indicated by a lit LED on the system board, are installed correctly. (Trained technician only) Replace the failing microprocessor. For more information, contact your IBM service representative. If the CONFIG LED and the CPU LED are lit, the system logs an invalid microprocessor configuration error. Complete the following steps to correct the problem: Check recently installed microprocessors to ensure that they are compatible with each other. (Trained technician only) Replace any incompatible microprocessor. Check the system-error logs for information about the error. Replace any component that is identified in the error log.
   MEM	When only the MEM LED is lit, a memory error occurred	Note: Note: Each time that you install or remove a DIMM, you must disconnect the node from the power source; then, wait 10 seconds before you restart the server. If the CONFIG LED is not lit, the system might detect a memory error. Complete the following steps to correct the problem: Update the node firmware. Reseat or swap the DIMMs with lit LED. Check the system-event log in the Setup utility or IMM error messages. Replace the failing DIMM.
   	MEM + CONFIG When both the MEM and CONFIG LEDs are lit, the memory configuration is not valid.	If the MEM LED and the CONFIG LED are lit, check the system-event log in the Setup utility or IMM2 error messages.
   TEMP	The system or the system component temperature exceeded a threshold level. A failing fan can cause the TEMP LED to be lit.	Make sure that the heat sink is seated correctly. Determine whether a fan failed and replace the fan if necessary. Make sure that the room temperature is not too high. See the environment requirements for the server temperature information. Make sure that the air vents are not blocked. Make sure that the heat sink or the fan on the adapter, or any other network adapter is seated correctly. If the fan failed, replace it. For more information, contact your IBM service representative.
   FAN	A fan is either failed, operating too slowly, or is removed. The TEMP LED might also be lit.	Check whether your node is installed with the dual-port network adapter. If yes, make sure that your node compiles with the configuration with four fans installed. Reseat the failing fan, which is indicated by a lit LED near the fan connector on the system board. Replace the failing fan.
   BOARD	An error occurred on the system board or the system battery.	Check the LEDs on the system board to identify the component that caused the error. The BOARD LED can be lit due to any of the following reasons: Battery (Trained technician only) System board Check the system-error log for information about the error. Replace the failing component.
   HDD	A hard disk drive that is failed or is missing.	Check the LEDs on the hard disk drives for the drive with a lit status LED and reseat the hard disk drive. Reseat the hard disk drive backplane. If the error remains, replace the following components one at a time, in the order that is listed, restarting the server after each: Replace the hard disk drive. Replace the hard disk drive backplane. If the problem remains, contact your IBM service representative.

3. Continue with MAP 5700: Repair verification to verify the correct operation.

Use the diagnostics LEDs that are on the system board to solve hardware problems with the SAN Volume Controller 2145-CG8 node.

1. Is the Error LED, shown in Figure 5, on the SAN Volume Controller 2145-CG8 operator-information panel on or flashing?
   Figure 5. SAN Volume Controller 2145-CG8 or 2145-CF8 operator-information panel

   
   •  1  System error LED.
   •  2  Release latch.

   NO

   Reassess your symptoms and return to MAP 5000: Start.

   YES

   Go to step 2.

2. (from step 1)

   Press the release latch and open the light path diagnostics panel, which is shown in Figure 6.

   Are one or more LEDs on the light path diagnostics panel on or flashing?

   Figure 6. SAN Volume Controller 2145-CG8 or 2145-CF8 light path diagnostics panel

   

   NO

   Verify that the operator-information panel cable is correctly seated at both ends. If the error LED is still illuminated but no LEDs are illuminated on the light path diagnostics panel, replace parts in the following sequence:

   1. Operator-information panel
   2. System board

   Verify the repair by continuing with MAP 5700: Repair verification.

   YES

   See Table 2 and complete the action that is specified for the specific light-path-diagnostics LEDs. Then, go to step 3. Some actions require that you observe the state of LEDs on the system board. Figure 7 shows the location of the system board LEDs. The fan LEDs are located next to each FAN. To view the LEDs, complete the following actions:

   1. Turn off the node while ensuring that its data is mirrored and synchronized. For more information, see MAP 5350: Powering off a node.
   2. Identify and label all the cables that are attached to the node so that they can be replaced in the same port. Remove the node from the rack and place it on a flat, static-protective surface.
   3. Remove the top cover.
   4. See Table 2 and complete the action that is specified for the specific light-path-diagnostics LEDs. Then, go to step 3.

   Figure 7. SAN Volume Controller 2145-CG8 system board LEDs diagnostics panel

   

   •  1  Battery LED.
   •  2  IMM heartbeat LED.
   •  3  Enclosure management heartbeat LED.
   •  4  DIMM 10-18 error LEDs.
   •  5  Microprocessor 1 error LED.
   •  6  DIMM 1-9 error LEDs.
   •  7  Fan one error LED.
   •  8  Fan two error LED.
   •  9  Fan three error LED.
   •  10  Fan four error LED.
   •  11  Fan five error LED.
   •  12  Fan six error LED.
   •  13  SAS RAID riser-card missing LED.
   •  14  240 VA error LED.
   •  15  Power channel A error LED.
   •  16  Power channel B error LED.
   •  17  Power channel C error LED.
   •  18  Power channel D error LED.
   •  19  Power channel E error LED.
   •  20  AUX power channel error LED.
   •  21  System board error LED.
   •  22  Microprocessor 2 error LED.
   •  23  Riser 2 missing LED.

   Table 2. Diagnostics panel LED prescribed actions

   Diagnostics panel LED	Action
   OVER SPEC	The power supplies are using more power than their maximum rating. If the OVER SPEC LED is lit, one or more of the six 12 V channel error LEDs is also lit. The 12 V channel error LEDs (A, B, C, D, E, or AUX) are on the system board. Complete the following actions to resolve the problem: Turn off the node, pull the node forward in the rack, and remove the cover. Do not disconnect power from the node. Check the 12 V channel error LED that is lit on the system board, and remove components that are listed for that LED: LED A: fans, disk drive, any flash drives, or disk backplane LED B: Fibre Channel adapter and riser, all memory LED C: disk controller, all memory LED D: microprocessor LED E: High-speed SAS adapter and riser, if installed LED AUX: Fibre Channel adapter and high-speed SAS adapter, if installed Restart the node to see whether the problem remains. Reinstall each device one at a time that you removed for the LED problems. Start the node each time to isolate the failing device. Replace any failing device. If no device was isolated, and if LED C or LED D is lit, turn off the node and remove the microprocessor. You need alcohol wipes and thermal grease to replace the microprocessor. Power on the server by toggling switch block 3 (SW3) bit 6. Restart the server. If the problem is resolved, replace the microprocessor; otherwise, reinstall the microprocessor. In either case, toggle switch block 3 (SW3) bit 6 back to its original position. If no device was isolated, and if LED AUX is lit, turn off the node and remove the operator-information panel. Power on the server by toggling switch block 3 (SW3) bit 6. Restart the server. Restart the server. If the problem was resolved, replace the operator-information panel; otherwise, reinstall the operator-information panel. In either case, toggle switch block 3 (SW3) bit 6 back to its original position. If no failing device is isolated, replace the system board.
   LOG	An error occurred. Connect a keyboard and a monitor. Check the IMM system event log and the system event log for information about the error. Replace any components that are identified in event logs.
   LINK	This LED is not used on the SAN Volume Controller 2145-CG8. Replace the system board.
   PS	Power supply 1 or power supply 2 failed. Complete the following actions to resolve the problem: Check the power supply with a lit amber LED. Make sure that the power supplies are seated correctly. Remove 1 power supply to isolate the failed power supply. Replace the failed power supply.
   PCI	An error occurred on a PCI bus or on the system board. Another LED is lit next to a failing PCI slot. Complete the following actions to resolve the problem: Identify the failing adapter by checking the LEDs on the PCI slots. If the PCI in slot 1 is showing an error, replace the four-port Fibre Channel adapter assembly. If the PCI in slot 2 is showing an error, replace the high-speed SAS adapter assembly. If the error is not resolved, replace the system board.
   SP	A service processor error was detected. Complete the following actions to resolve the problem: Remove power from the node. Reconnect the server to the power, and restart the node. If the problem remains, replace the system board.
   FAN	A fan is either failed, operating too slowly, or is removed. A failing fan can also cause the TEMP LED to be lit. Complete the following actions to resolve the problem: Reseat the failing fan, which is indicated by a lit LED near the fan connector on the system board. If the problem remains, replace the failing fan.
   TEMP	The system temperature exceeded a threshold level. A failing fan can cause the TEMP LED to be lit. Complete the following actions to resolve the problem: Make sure that the heat sink is seated correctly. Determine whether a fan failed, and replace it. Verify that the ambient temperature is within normal operating specifications. Make sure that airflow in and around the SAN Volume Controller 2145-CG8 is not obstructed.
   MEM	A memory configuration or a memory error that is not valid occurred. Both the MEM LED and CNFG LED might be lit. Complete the following actions to resolve the problem: Check that all the memory DIMMs are correctly installed. If any memory error LEDs are lit, replace the indicated memory module. If the MEM LED and the CNFG LED are lit, adjust the memory so that DIMM slots 2, 3, 5, 6, 7, and 8 are the only ones used.
   NMI	A non-maskable interrupt occurred or the NMI button was pressed. This situation does not occur normally. If the NMI button on the light path diagnostic panel was pressed by mistake, restart the node. Otherwise, call your support center.
   CNFG	A hardware configuration error occurred. If the MEM LED is also lit, complete the actions that are shown for MEM LED. If the CPU LED is lit, check to see whether a microprocessor is installed in CPU 2. If a CPU is installed, remove it. The configuration is not supported. If no other light path LEDs are lit, replace the FRUs in the order that is shown until the problem is resolved: Operator-information panel Operator-information panel cable System board
   CPU	A microprocessor that failed or a microprocessor configuration is not valid. Both the CPU LED and the CNFG LED might be lit. Complete the following actions: Check the system board error LEDs. If CPU 1 error LED is lit, check that the microprocessor is correctly installed. If the error persists, replace the microprocessor. If the error persists, replace the system board.
   VRM	This LED is not used on the SAN Volume Controller 2145-CG8.
   DASD	A disk drive that failed or is missing. A SAN Volume Controller 2145-CG8 must have its system hard disk drive that is installed in drive slot 4. Up to 4 flash drives can be installed in drive slots 0 - 3. If a Flash drive is deliberately removed from a slot, the system error LED and the DASD diagnostics panel LED lights. The error is maintained even if the Flash drive is replaced in a different slot. If a Flash drive is removed or moved, clear the error by completing this procedure: Power off the node by using MAP 5350. Remove both power cables. Replacing both power cables. Restart the node. Resolve any node or system errors that relate to Flash drives or the system disk drive. If an error is still shown, power off the node and reseat all the drives. If the error remains, replace the following components in the order listed: The system disk drive The disk backplane
   RAID	This LED is not used on the SAN Volume Controller 2145-CG8.
   BRD	An error occurred on the system board. Complete the following actions to resolve the problem: Check the LEDs on the system board to identify the component that caused the error. The BRD LED can be lit because of any of the following reasons: Battery. Missing PCI riser-card assembly. There must be a riser card in PCI slot 2 even if another adapter is not present. Failed voltage regulator. Replace any failed or missing replacement components, such as the battery or PCI riser-card assembly. If a voltage regulator fails, replace the system board.

3. Continue with MAP 5700: Repair verification to verify the correct operation.

Use the diagnostics LEDs that are on the system board to solve hardware problems with theSAN Volume Controller 2145-CF8 node.

1. Is the Error LED, shown in Figure 8, on the SAN Volume Controller 2145-CF8 operator-information panel on or flashing?
   Figure 8. SAN Volume Controller 2145-CG8 or 2145-CF8 operator-information panel

   
   •  5  System error LED.
   •  6  Release latch.

   NO

   Reassess your symptoms and return to MAP 5000: Start.

   YES

   Go to step 2.

2. (from step 1)

   Press the release latch and open the light path diagnostics panel, which is shown in Figure 9.

   Are one or more LEDs on the light path diagnostics panel on or flashing?

   Figure 9. SAN Volume Controller 2145-CG8 or 2145-CF8 light path diagnostics panel

   

   NO

   Verify that the operator-information panel cable is correctly seated at both ends. If the error LED is still illuminated but no LEDs are illuminated on the light path diagnostics panel, replace parts in the following sequence:

   1. Operator-information panel
   2. System board

   Verify the repair by continuing with MAP 5700: Repair verification.

   YES

   See Table 3 and complete the action that is specified for the specific light-path-diagnostics LEDs. Then, go to step 3. Some actions require that you observe the state of LEDs on the system board. Figure 10 shows the location of the system board LEDs. The fan LEDs are located next to each FAN. To view the LEDs, complete the following actions:

   1. Turn off the node while ensuring that its data is mirrored and synchronized. For more information, seeMAP 5350: Powering off a node.
   2. Identify and label all the cables that are attached to the node so that they can be replaced in the same port. Remove the node from the rack and place it on a flat, static-protective surface.
   3. Remove the top cover.
   4. See Table 3 and complete the action that is specified for the specific light-path-diagnostics LEDs. Then, go to step 3.

   Figure 10. SAN Volume Controller 2145-CF8 system board LEDs diagnostics panel

   

   •  1  Slot 2 missing PCI riser card LED.
   •  2  Enclosure manager heartbeat LED.
   •  3  Battery LED.
   •  4  IMM heartbeat LED.
   •  5  Slot 1 missing PCI riser card LED.
   •  6  System error LED.
   •  7  Microprocessor 1 error LED.
   •  8  DIMM 1-8 error LEDs.
   •  9  Fan one error LED.
   •  10  Fan two error LED.
   •  11  Fan three error LED.
   •  12  Fan four error LED.
   •  13  Fan five error LED.
   •  14  Fan six error LED.
   •  15  240 VA error LED.
   •  16  Power channel A error LED.
   •  17  Power channel B error LED.
   •  18  Power channel C error LED.
   •  19  Power channel D error LED.
   •  20  Power channel E error LED.
   •  21  AUX power channel error LED.
   •  22  SAS/SATA RAID error LED.
   •  23  Microprocessor 2 error LED.
   •  24  DIMM 9-16 error LEDs.

   Table 3. Diagnostics panel LED prescribed actions

   Diagnostics panel LED	Action
   OVER SPEC	The power supplies are using more power than their maximum rating. If the OVER SPEC LED is lit, one or more of the six 12 V channel error LEDs is also lit. The 12 V channel error LEDs (A, B, C, D, E, or AUX) are on the system board. Complete the following actions to resolve the problem: Turn off the node, pull the node forward in the rack, and remove the cover. Do not disconnect power from the node. Check the 12 V channel error LED that is lit on the system board. Remove components that are listed for that LED: LED A: fans, disk drive, any flash drives, or disk backplane LED B: Fibre Channel adapter and riser, all memory LED C: disk controller, all memory LED D: microprocessor LED E: High-speed SAS adapter and riser, if installed LED AUX: Fibre Channel adapter and high-speed SAS adapter, if installed Restart the node to see whether the problem remains. Reinstall each device one at a time that you removed for the LED problems. Start the node each time to isolate the failing device. Replace any failing device. If no device was isolated, and if LED C or LED D is lit, turn off the node and remove the microprocessor. You need alcohol wipes and thermal grease to replace the microprocessor. Power on the server by toggling switch block 3 (SW3) bit 6. Restart the server. Restart the server. If the problem is resolved, replace the microprocessor; otherwise, reinstall the microprocessor. In either case, toggle switch block 3 (SW3) bit 6 back to its original position. If no device was isolated, and if LED AUX is lit, turn off the node and remove the operator-information panel. Power on the server by toggling switch block 3 (SW3) bit 6. Restart the server. Restart the server. If the problem was resolved, replace the operator-information panel; otherwise, reinstall the operator-information panel. In either case, toggle switch block 3 (SW3) bit 6 back to its original position. If no failing device is isolated, replace the system board.
   LOG	An error occurred. Connect a keyboard and a monitor. Check the IMM system event log and the system event log for information about the error. Replace any components that are identified in event logs.
   LINK	This LED is not used on the SAN Volume Controller 2145-CF8. Replace the system board.
   PS	Power supply 1 or power supply 2 failed. Complete the following actions to resolve the problem: Check the power supply that has a lit amber LED. Make sure that the power supplies are seated correctly. Remove a power supply to isolate the failed power supply. Replace the failed power supply.
   PCI	An error occurred on a PCI bus or on the system board. Another LED is lit next to a failing PCI slot. Complete the following actions to resolve the problem: Identify the failing adapter by checking the LEDs on the PCI slots. If the PCI slot 1 LED is lit, replace the four-port Fibre Channel adapter assembly. If the PCI slot 2 LED is lit, replace the high-speed SAS adapter assembly. If the error is not resolved, replace the system board.
   SP	A service processor error was detected. Complete the following actions to resolve the problem: Remove power from the node. Reconnect the server to the power, and restart the node. If the problem remains, replace the system board.
   FAN	A fan is failing, is operating too slowly, or is removed. A failing fan can also cause the TEMP LED to be lit. Complete the following actions to resolve the problem: Reseat the failing fan, which is indicated by a lit LED near the fan connector on the system board. If the problem remains, replace the failing fan.
   TEMP	The system temperature exceeded a threshold level. A failing fan can cause the TEMP LED to be lit. Complete the following actions to resolve the problem: Make sure that the heat sink is seated correctly. Determine whether a fan failed. If it has, replace it. Verify that the ambient temperature is within normal operating specifications. Make sure that airflow in and around the SAN Volume Controller 2145-CF8 is not obstructed.
   MEM	A memory configuration or a memory error that is not valid occurred. Both the MEM LED and CNFG LED might be lit. Complete the following actions to resolve the problem: Check that all the memory DIMMs are correctly installed. If any memory error LEDs are lit, replace the indicated memory module. If the MEM LED and the CNFG LED are lit, adjust the memory so that DIMM slots 2, 3, 5, 6, 7, and 8 are the only ones used.
   NMI	A non-maskable interrupt occurred or the NMI button was pressed. This situation does not occur normally. If the NMI button on the light path diagnostic panel was pressed by mistake, restart the node. Otherwise, call your support center.
   CNFG	A hardware configuration error occurred. If the MEM LED is also lit, follow the actions that are shown for MEM LED. If the CPU LED is lit, check to see whether a microprocessor is installed in CPU 2. If a CPU is installed, remove it. The configuration is not supported. If no other light path LEDs are lit, replace the FRUs in the order that is shown until the problem is resolved: Operator-information panel Operator-information panel cable System board
   CPU	A microprocessor that is failed, or a microprocessor configuration is not valid. Both the CPU LED and the CNFG LED might be lit. Complete the following actions: Check the system board error LEDs. If CPU 1 error LED is lit, check that the microprocessor is correctly installed. If the error persists, replace the microprocessor. If the error persists, replace the system board.
   VRM	This LED is not used on the SAN Volume Controller 2145-CF8.
   DASD	A disk drive that is failed or is missing. A SAN Volume Controller 2145-CF8 must have its system hard disk drive that is installed in drive slot 4. Up to 4 flash drives can be installed in drive slots 0 - 3. If an Flash drive is deliberately removed from a slot, the system error LED and the DASD diagnostics panel LED lights. The error is maintained even if the Flash drive is replaced in a different slot. If a Flash drive is removed or moved, clear the error by completing this procedure: Power off the node by using MAP 5350. Remove both power cables. Replacing both power cables. Restart the node. Resolve any node or system errors that relate to Flash drives or the system disk drive. If an error is still shown, power off the node and reseat all the drives. If the error remains, replace the following components in the order listed: The system disk drive The disk backplane
   RAID	This LED is not used on the SAN Volume Controller 2145-CF8.
   BRD	An error occurred on the system board. Complete the following actions to resolve the problem: Check the LEDs on the system board to identify the component that caused the error. The BRD LED can be lit because of any of the following reasons: Battery Missing PCI riser-card assembly. There must be a riser card in PCI slot 2 even if another adapter is not present. Failed voltage regulator Replace any failed or missing replacement components, such as the battery or PCI riser-card assembly. If a voltage regulator fails, replace the system board.

3. Continue with MAP 5700: Repair verification to verify the correct operation.