Brocade Communications Systems AA979A - StorageWorks SAN Switch 2/8V Reference Manual page 309

Make sure that the area is well ventilated and that the room temperature is within operational range of
your switch. Refer to the hardware reference manual for your switch for the operational temperature
range.
If the message persists, replace the blade.
Severity CRITICAL
HIL-1503
Message
<timestamp>, [HIL-1503], <sequence-number>, FFDC, CRITICAL,
<system-name>, Slot <slot number>, unit shutting down.
Probable Indicates that the temperature of this blade has risen above the maximum threshold for at least two
Cause
minutes. The blade is shut down to prevent further damage. This usually follows a high-temperature
warning message.
Recommended
Run the fanShow command to verify all the fans are working properly.
Action
Make sure that the area is well ventilated and that the room temperature is within operational range of
your switch. Refer to the hardware reference manual for your switch for the operational temperature
range.
If the message persists, replace the faulty blade.
Severity
CRITICAL
HIL-1504
Message
<timestamp>, [HIL-1504], <sequence-number>,, INFO, <system-name>,
System within normal temperature specifications (<measured
temperature> C).
Probable Indicates that temperatures in the system have returned to normal.
Cause
Recommended No action is required.
Action
Severity
INFO
Fabric OS Message Reference
Publication Number: 53-1000242-01
28
HIL-1503
28-13