DSNB303E `csect-name` A LOSS OF CONNECTIVITY WAS DETECTED TO GROUP BUFFER POOL `gpbname`

Explanation
 Connectivity to group buffer pool gpbname was
lost.

System action
 Db2 disconnects
from the coupling facility structure with REASON=FAILURE.
 The
action taken in response to this problem depends on the attempted
function, as follows:  
For a coupling facility read: SQLCODE -904 (resource unavailable)
is returned to the SQL user with a reason code indicating the specific
error.

For a coupling facility read during rollback, backout, or restart:
The inaccessible page is added to the logical page list (LPL) for
the page set.  Message DSNB250E is issued for the first page of each
data set added to the LPL.

For a coupling facility read during castout: The castout operation
cannot complete.

For a coupling facility write: The changed page is added to the
LPL for the page set.

DSNB303E csect-name A LOSS OF CONNECTIVITY WAS DETECTED TO GROUP BUFFER POOL gpbname

Explanation

System action

DSNB303E `csect-name` A LOSS OF CONNECTIVITY WAS DETECTED TO GROUP BUFFER POOL `gpbname`