McDATA 4300 - Manual (Page 102)

3-38 McDATA Sphereon 4300 Fabric Switch Installation and Service Manual
Maintenence Analysis Procedures
Obtain supplementary error code data for event code 150. At the
Event Log, examine bytes 12 through 15 of event data that specify
the error code. Record the error code.
Perform a data collection and contact the next level of support. Refer
to
Collect Maintenance Data . Report the event code, associated
failure reason, and supplementary error code. Exit MAP.