just googled and ... guess what
You have a CQRY task hanging in CICS. CEMT shows that the task is suspended waiting on terminal input. This is seen as a suspend HTY(ZCIOWAIT) HVA(DFHZARQ1).
CICS uses transaction CQRY to query a terminal on its capabilities. The TYPETERM of these terminals would specify QUERY(ALL) or QUERY(COLD). The ZCIOWAIT DFHZARQ1 means CICS is waiting for the terminal to respond. If your terminals are TCP/IP 3270 Telnet sessions, an Internet worm virus can cause enough congestion in your network that the response to the query never comes.
Resolving the problem
There is no CICS solution to this problem. The network congestion must be cleared up before CICS will function normally.
the APAR talks about a worm virus, really there are zillions things that might cause a network congestion
furthermore You should have no nedd to use that transaction... seehttp://publib.boulder.ibm.com/infocente ... fhp3bc.htm
the info posted was found in the first two links after a google search for cqry cics