I normally start with symapi log on the impacted host and most of the time reports about the failed disk or the LUN belonging to the failed drive.  Or start with "symdev list -service_state degraded"
All.  Kindly advice on -  1. There is a drive failed on our DMX which is re-building. Kindly advice on command to find defective drive and status of the rebuild.  Thanks in advance.  Regards, Ash
Drive status