>>-TRACE CT,ON,COMP=--mvsnfs--+----------------+---------------><
                              '-,parm=CTINFSnn-'   

* id ITT006A SPECIFY OPERAND(S) FOR TRACE CT COMMAND.

>>-R(eply)--id--OPTIONS=--(name,name...)------------------------>

>--+----------------------+--+-,CONT-+-------------------------><
   '-,WTR=-+-procname---+-'  '-,END--'   
           '-DISCONNECT-'                

id

Specifies the identification number from the ITT006A message.

name,name...

Specifies a trace option or options for tracing NFS server records. The possible options are:

Buffer

Buffer Management (that is, BUFNODE)

CB_Mgmt

Control Block Management (creation, initialization, modification, deletion).

Detail

Detailed Trace Record. This is used for low level debug.

DFP_request

Call to MVS data set system function.

DFP_return

Return from MVS data set system function.

Dispatch

NFS Client worker thread posts results back to Cross memory thread.

Entry

Entry into a function

Error

Existing NFS Trace Error Record. This option is on by default and cannot be turned off.

Exit

Exit from a function.

FFDC

First Failure Data Capture. This option is on by default and cannot be turned off.

General

General Trace Record.

Info

Existing NFS Trace Info Record.

Lock_Release

Control Block Lock Release

Lock_Request

Control Block Lock Requests

Lock_Resume

Control block lock request resumes after lock request either succeeds or fails.

Network

Network communication related trace.

Resume

Cross memory thread receives result from NFS Client worker thread and resumes processing, or NFS worker thread receives work for processing

Schedule

Cross memory thread sends work to NFS Client worker thread and continues processing in parallel.

Suspend

Cross memory thread sends work to NFS Client worker thread and waits for result, or NFS worker thread waits for work.

Trap

For use in special temporary trap code created to aid in the analysis of a problem.

USS_request

Request issued to z/OS UNIX System Services.

USS_return

Returned from z/OS UNIX System Services request.

Warning

Existing NFS Trace Warning Record.

In addition to these basic options, you can also enter the following shorthand values to specify multiple record types:

All

All existing NFS trace records.

Call

Entry and Exit record types.

Debug1

FFDC, Entry and Exit record types.

Debug2

FFDC, Entry, Exit and Network record types.

Debug4

FFDC, Entry, Exit, Network, Suspend, Resume, Schedule, Dispatch and General record types.

Debug9

All existing NFS trace records (equal to All).

Lock

Lock_Req, Lock_Result and Lock_Release record types

MVS

DFP_Request and DFP_Return record types.

NFS

NFS_Req and NFS_Rtn record types.

Task_Flow

Suspend, Resume, Schedule and Dispatch record types.

USS

USS_Request and USS_Return record types.

Note:

1. An option can be turned off by preceding the option value with a minus sign (for example, OPTIONS=(-GENERAL) ).
2. Options are processed from left to right, first processing all values to turn on options and then processing all values to turn off options. Thus all options except Network can be turned on with the following options specification: OPTIONS=(ALL, -NETWORK). If an options value of " -ALL" is specified, the options revert back to a minimum trace state .
3. A minimum trace state has been defined, which will be the default initial trace state and will also be the trace state that takes effect if "all" trace states are turned off. In this "MIN" state, ERROR and FFDC record tracing will remain active. They cannot be deactivated. Neither MIN nor -MIN can be specified in the OPTIONS list.

WTR=procname|DISCONNECT

Connects or disconnects the component trace external writer and the trace. procname identifies the name of the member that contains the source JCL that invokes the external writer. The member can be a SYS1.PROCLIB cataloged procedure or a job. The procname in the WTR parameter must match the procname in a previous TRACE CT,WTRSTART command.

WTR=DISCONNECT disconnects the writer and the trace. The component continues tracing and placing the trace records in the address-space buffer, but stops passing trace records to the external writer.

You must also specify a TRACE CT,WTRSTART or TRACE CT,WTRSTOP command to start or stop the writer.

CONT or END

Specifies that the reply continues on another line. The system reissues the same prompting message. You then can continue the reply. You can repeat any parameters on the continuation line, except END. Repeated parameters are strung together. They do not overlay each other. You must specify END to complete the response. END identifies the end of the REPLY.