SVC remote copy 报错Remote Copy stopped because of performance or fabric problems？

远程复制其中一个一致性组报错 Remote Copy stopped because of performance or fabric problems
详细如下：
Event ID 050010
Event ID Text Remote Copy suffered persistent error
Error Code 1920
Error Code Text Remote Copy stopped because of performance or fabric problems
Dmp Family IBM
Status Alert
Fixed No
Auto Fixed No
Notification Type Warning
The error sequence number which caused this error 1210

手工再次启动后，还是报错
其他一致性组正常
请问应该如何排错呢？