Status LEDs

Status LEDs are located on the control-panel ear A module located at the front right of the ztC Endurance system. It houses a USB 2.0 port, power button for the ztC Endurance system, and LEDs that indicate system power status (PWR), fault conditions (ATTN), and module identification status (UID). as well as the front of each CRU module. This topic illustrates and describes these LEDs. See Figure 28 and Figure 29, as well as Table 9, Table 10, Table 11, Table 12, and Table 13.

You can use the ATTN LEDs to diagnose faults, as described in Using the ATTN LEDs to Diagnose Faults .

Figure 28: Front LEDs: Storage Module, Control-panel Ear, and Compute Module

Table 9: Front LEDs: Storage Module
Callout	LED	State	Description
1	Fault	Off	Normal operation.
1	Fault	Solid amber	The disk is broken and safe to remove. See Removing and Inserting a Disk Drive.
2	ACT	Off	Idle or duplexed. Safe to remove.
		Solid green	Drive is present.
		Blinking green	Data is being written to or read from the disk.
3	PWR	Off	DC power and standby power to the module are off.
		Solid green	DC power to the module is on.
		Blinking green	Standby power to the system is on; DC power to the module is off.
4	UID	Off	No request to identify module activated (normal operation). To identify, see Identifying a System or Component.
4	UID	Solid blue	Request to identify module activated; LED illuminates with DC power or with standby power.
5	ATTN	Off	Indicates one of two scenarios: The module does not need to be replaced. The module needs to be replaced, but the module is not safe to remove. To determine which scenario is true, check the control-panel ear's ATTN LED. If that LED is not illuminated, no module in the system needs to be replaced.
5	ATTN	Blinking amber	Fault; safe to replace the module. LED illuminates with DC power or with standby power. To replace, see Removing and Replacing a Storage Module.

Table 10: Front LEDs: Control-Panel Ear
Callout	LED	State	Description
6	PWR	Off	DC power and standby power to the module are off. To turn power on or off, press the power button on the control-panel ear or use the BMC. See System Power.
		Solid green	DC power to any module is on.
		Blinking green	Standby power is on; no module has DC power.
7	ATTN	Off	Indicates one of two scenarios: Standby power is off. Standby power is on, but no compute module is inserted.
		Solid green	Indicates one of two scenarios: Standby power is on, at least one compute module is inserted, but the Stratus Management Service is not running. None of the three scenarios that cause the LED to blink amber has occurred.
		Blinking amber	Indicates one of three scenarios: The Windows OS is booted, the Stratus Management Service is running, and one or more modules are not inserted or need replacement. One member of a teamed PCIe adapter or Fibre Channel cable has been removed. A disk drive is missing from a mirrored pair, either because of physical removal or because it needs replacement. Check LEDs of all modules to identify the module with a fault. For a list of modules, see System CRU Modules. Note: After a total system shutdown, the ATTN LED remains in the last state it was in until you remove and restore standby power.
8	UID	Off	No request to identify module activated (normal operation). To identify, see Identifying a System or Component.
8	UID	Solid blue	Request to identify module activated; LED illuminates with DC power or with standby power.

Table 11: Front LEDs: Compute Module
Callout	LED	State	Description
9	ATTN	Off	Indicates one of two scenarios: The module does not need to be replaced. The module needs to be replaced, but the module is not safe to remove. To determine which scenario is true, check the control-panel ear's ATTN LED. If that LED is not illuminated, no module in the system needs to be replaced.
9	ATTN	Blinking amber	Fault; safe to replace the module. LED illuminates with DC power or with standby power. See Removing and Replacing a Compute Module.
10	UID	Off	No request to identify module activated (normal operation). To identify, see Identifying a System or Component.
10	UID	Solid blue	Request to identify module activated; LED illuminates with DC power or with standby power.
11	PWR	Off	DC power and standby power to the module are off.
		Solid green	The module has DC power (standby power is also on).
		Blinking green	The system has standby power only.

Figure 29: Rear LEDs: PSUs and I/O Module

Table 12: Rear LEDs: PSUs
Callout	State	Description
1	Off	No AC power to any PSU.
	Solid green	Output power is on.
	Blinking green (1Hz)	The PSU is in a standby state: AC power is present at only 12Vsb.
	Blinking green (2Hz)	PSU firmware is updating.
	Solid amber	Indicates one of two scenarios: The PSU has lost AC power (the AC cord might be unplugged); a second PSU still has AC power. A PSU critical event is causing a shutdown because of a failure, overcurrent, short circuit, over-voltage, fan failure, over-temperature, or some other reason.
	Blinking amber (1Hz)	The PSU is still operating, though it is experiencing a warning event such as a high temperature, high power, high current, or a slow fan.

Table 13: Rear LEDs: I/O Module
Callout	LED	State	Description
2	PWR	Off	DC power and standby power to the module are off.
		Solid green	DC power to the module is on.
		Blinking green	Standby power to the system is on; DC power to the module is off.
3	ATTN	Off	Indicates one of two scenarios: The module does not need to be replaced. The module needs to be replaced, but the module is not safe to remove. To determine which scenario is true, check the control-panel ear's ATTN LED. If that LED is not illuminated, no module in the system needs to be replaced.
3	ATTN	Blinking amber	Fault; safe to replace the module. LED illuminates with DC power or with standby power. To replace, see Removing and Replacing an I/O Module.
4	UID	Off	No request to identify module activated (normal operation). To identify, see Identifying a System or Component.
4	UID	Solid blue	Request to identify module activated; LED illuminates with DC power or with standby power.
5	10 Gbps Link /ACT	Off	No link is present.
		Solid green	Link is stable.
		Blinking green	Data is being transferred over the link.
6	10 Gbps Speed	Off	No link is present.
		Solid green	Connection speed is 10 Gbps.
		Solid amber	Connection speed is less than 10 Gbps.
7	1 Gbps Link /ACT	Off	No link is present.
		Solid green	Link is stable.
		Blinking green	Data is being transferred over the link.
8	1 Gbps Speed	Off	No link is present, or link speed is less than 1 Gpbs.
8	1 Gbps Speed	Solid green	Connection speed is 1 Gbps.

Using the ATTN LEDs to Diagnose Faults

The ATTN LED on the control-panel ear and on the CRU modules help you diagnose faults. A fault is an issue that requires module replacement, as opposed to other types of errors that occur on a module (for example, correctable errors below a certain threshold) that do not require module replacement.

The examples in Table 14 provide more information about using the ATTN LEDs to diagnose faults.

Table 14: Examples of Faults
ATTN LED Status	Explanation
Control-panel ear ATTN LED is blinking amber. For all modules, ATTN LEDs are off.	One or more of the modules needs replacement or is not inserted, but no module that needs replacement is safe to remove. For example, compute module A may need replacement, but it may still be the active compute module.
Control-panel ear ATTN LED is blinking amber. Compute module A ATTN LED is blinking amber. For all other modules, ATTN LEDs are off.	Compute module A needs replacement, and it is safe to remove. One or more of the other modules may need replacement or may not be inserted, but no module that needs replacement is safe to remove. For example, storage module A may need replacement, but it may contain a non-mirrored disk.
Control-panel ear ATTN LED is blinking amber. I/O module B ATTN LED is blinking amber. For all other modules, ATTN LEDs are off.	I/O module B needs replacement, and it is safe to remove. One or more of the other modules may need replacement or may not be inserted, but no module that needs replacement is safe to remove. For example, compute module A may need replacement, but it may still be the active compute module.

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Product Documentation (PDF Format) ztC Endurance 3x00, 5x00, and 7x00 Systems: User's Guide (Windows) (R006C) ztC Endurance 3x00, 5x00, and 7x00 Systems: Unpacking a System (R004C) ztC Endurance 3x00, 5x00, and 7x00 Systems: Deploying a System (R002C)	About Help Help created at 2:21 PM on 11/12/2024. Notice and Copyrights