IBM DS4700 报警？

Date/Time: 18-6-5 17:24:53
Sequence number: 8532
Event type: 1208
Event category: Error
Priority: Critical
Description: Data RATE negotiation failed
Event specific codes: 0/0/0
Component type: Channel
Component location: Host-side: controller in slot B,port1
Logged by: Controller in slot b
Raw data:
4d 45 4c 48 02 00 00 00 54 21 00 00 00 00 00 00
08 12 16 11 d3 c8 c8 5a 00 00 00 00 00 00 00 00
00 00 00 00 01 20 00 00 05 00 00 00 01 00 00 00
06 00 00 00 06 00 00 00 00 00 00 00 01 00 00 00
02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00