Receiving Error " MIM Exc GTALOCAL Waiting_For_Device_Group_Locks"

Products

• MIM Resource Sharing (MIM)

Issue/Introduction

We have this message wait :

  MIM            Exc GTALOCAL Waiting_For_Device_Group_Locks
SystemA      Wait Shr GTALOCAL Waiting_For_Device_Group_Locks
SystemB      Wait Shr GTALOCAL Waiting_For_Device_Group_Locks
SystemC      Wait Shr GTALOCAL Waiting_For_Device_Group_Locks
SystemD      Wait Shr GTALOCAL Waiting_For_Device_Group_Locks
SystemE      Wait Shr GTALOCAL Waiting_For_Device_Group_Locks
SystemF      Wait Shr GTALOCAL Waiting_For_Device_Group_Locks 
All these jobs have one thing in common, they all are using tape

Environment

MIM for z/OS  12.5 using the MIA component of MIM which provides integrity when sharing tape devices among systems or CPU images

 

Cause

The GTALOCAL enqueue resource RNAME is used to identify the process involved in the intercept wait condition. The current RNAME in use is Waiting_For_Device_Group_Locks 
In this case, the resource is locked on at least one system :

Resolution

Issue either an ANALYZE or a DIAGNOSE command used by the MIA component to find the enqueue.  Both are described in the MIM 12.5 documentation.  The ANALYZE is found under the (MIA) ANALYZE Command -Analyze and Display Delay Information while the DIAGNOSE is found under the Troubleshoot MIA problems 

The customer used an   F MIM, DIAGNOSE SYSTEMS   command to find the enqueue and clear it. 
Another form that can be used is an   F MIM, DIAGNOSE ALL   for more detail if needed.