SIEM appliances have a system status LED on the front panel, which can be used to determine the current health of the appliance. The LED changes color depending on the state of the system. This article describes these different states.
NOTE: This information is specifically for the following 2U servers:
- ESM-ELM-ERC-4600
- ESM-ELM-ERC-5600
- ESM-ELM-ERC-6000
- ESM-5600 ESM-6000
- ELM-4600 ELM-5600 ELM-6000
- ERC-2600 ERC-3450 ERC-4600
- ACE-2600 ACE-3450 ADM-3460
- DEM-2600 DEM-4600
System Status LED states
Color |
Status |
Criticality |
Off |
System isn't operating |
Not ready |
Green |
Solid on |
OK — system is on and running normally |
Green |
~1 Hz blink |
Degraded — system is operating in a degraded state although it's still functional, or system is operating in a redundant state but with an impending failure warning |
Amber |
~1 Hz blink |
Non-critical — system is operating in a degraded state with an impending failure warning, although it's still functional |
Amber |
Solid on |
Critical, non-recoverable — system is halted |
PSU Status LED states:
- One blink per second means that the power supply is off, or in cold redundancy. Cold redundancy means that one power supply is in an efficient low-power state. It isn't activated until it's needed.
- Two blinks per second means that the power supply is updating its firmware.
To troubleshoot issues highlighted by the system status LED, perform the steps below:
- Reboot the appliance and determine whether a reboot resolves the error condition.
- If the LED isn't solid green after the device restarts, view the System Event Log (SEL) to determine what error messages it contains. The SEL can be found at /var/log/sel.log.
- You can also try to determine the root cause by running the ipmitool sel list command and examining the output. At the command-line interface (CLI), type the following command and press Enter:
ipmitool sel list
- Examine the output and identify errors that might indicate the cause of the error condition.
- If this information isn't enough to identify the root cause, run the Linux Diagnostics Tool (LDT). For more details about the LDT and how to use it, see KB91944 - Linux Diagnostic Tool Reference Guide.
If you can't determine the root cause of the error condition after you perform the steps above, collect the following information and provide it to Technical Support for analysis:
- If you are a registered user, type your User ID and Password, and then click Log In.
- If you are not a registered user, click Register and complete the fields to have your password and instructions emailed to you.