HP EVA Array iSCSI Connectivity Option - Manual (Page 174)

Power-on self-test diagnostics
The mpx100/100b performs a series of tests as part of its power-on procedure. The POST diagnostic
program performs the following tests:
• Memory
• FLASH validation
• PCI device discovery
• Management Ethernet port
Heartbeat LED blink patterns
The Heartbeat LED indicates the operational status of the mpx100/100b. When the POST completes with
no errors, the Heartbeat LED blinks at a steady rate of once per second. When the mpx100/100b is in
maintenance mode, the Heartbeat LED illuminates continuously. The blink patterns that indicate critical
errors are described in the following sections. In addition to producing a Heartbeat error blink pattern, a
critical error also illuminates the System Fault LED.
The Heartbeat LED shows an error blink pattern for the following conditions:
• 1 blink—Normal operation
• 2 blinks—Not used
• 3 blinks—System error
• 4 blinks—Management port IP address conflict
• 5 blinks—Over temperature
Normal heartbeat blink pattern
A blink pattern of one second ON followed by one second OFF indicates that the mpx100/100b
is operating normally (see Figure 72 ).
Figure 72 Normal heartbeat blink pattern
System error blink pattern
A system error is indicated with a three-blink pattern (see Figure 73 ).
Figure 73 System error blink pattern
Management port IP address conflict blink pattern
An IP address conflict on the management Ethernet port is indicated with a four-blink pattern (see
Figure 74 ).
174 Diagnostics and troubleshooting