-DISPLAY ACCEL (DB2)

The DISPLAY ACCEL command displays information about accelerator servers.

Abbreviation: -DIS ACCEL

Environment

This command can be issued from a z/OS® console, a DSN session under TSO, a DB2I panel (DB2® COMMANDS), an IMS™ or CICS® terminal, or a program that uses the instrumentation facility interface (IFI).

Data sharing scope: Group or local, depending on the SCOPE option.

Authorization

To execute this command, you must use a privilege set of the process that includes one of the following privileges or authorities:
  • DISPLAY privilege
  • Start of changeSystem DBADM authorityEnd of change
  • SYSOPR authority
  • SYSCTRL authority
  • SYSADM authority

DB2 commands that are issued from a logged-on z/OS console or TSO SDSF can be checked by DB2 authorization by using primary and secondary authorization IDs.

Syntax

                  .-(--*--)----------------------------.   
                  |        .-,----------------.        |   
                  |        V                  |        |   
>>-DISPLAY ACCEL--+-(--------accelerator-name-+------)-+-------->

>--+--------+--+--------------------+--+--------------------+--->
   '-DETAIL-'  |       .-ACTIVE-.   |  |        .-LOCAL-.   |   
               '-LIST(-+-*------+-)-'  '-SCOPE(-+-GROUP-+-)-'   

>--+---------------------+-------------------------------------><
   '-MEMBER(member-name)-'   

Option descriptions

(accelerator-name)
The accelerator server name. This option limits the display to the specified accelerator servers.
(*)
Requests a list of all accelerator servers, whether the servers are currently in use or not. Specifying an asterisk (*) as the accelerator name indicates that the display must include all accelerator servers.
DETAIL
Displays additional information for one or more of the accelerator servers. If DETAIL is not specified, a basic summary report is produced.
LIST
Produces a list of accelerator servers that are currently in use or that have been started. Valid values are:
Start of change( ACTIVE )End of change
Start of change Restricts the list of accelerator servers to those that are currently in use.End of change
(*)
Requests a list of all accelerator servers, whether they are currently in use or not. An accelerator that has just been created appears in the list only if it has been started by using the START ACCEL command.
SCOPE
Specifies the scope of the command. In a non-data-sharing environment, the option is ignored. Valid values are:
( LOCAL )
Displays information only for the accelerator servers for the current data sharing member.
(GROUP)
Displays information for accelerator servers for all members of the data sharing group.
MEMBER
Restricts the display for the identified accelerator server to specific members of the data sharing group. The default behavior is to display accelerator servers for the local member. In a non-data-sharing environment, this option is ignored.

Output

Message DSNX830I indicates the beginning of the output of the command.

Examples

Example 1: Displaying information about all accelerator servers for a data sharing group
The following command displays information about all of the accelerator servers for all members in a data sharing group:Start of change
-DIS ACCEL(*) SCOPE(GROUP) LIST(*)
End of change

The output is similar to the following example:

DSNX810I  -DB1A DSNX8CMD DISPLAY ACCEL FOLLOWS -                         
DSNX830I  -DB1A DSNX8CDA                                                 
ACCELERATOR                      MEMB  STATUS  REQUESTS ACTV QUED MAXQ   
-------------------------------- ---- -------- -------- ---- ---- ----   
ACCEL1                           DB1A STARTED     32769    2    5   23
ACCEL2                           DB1A STOPPED     37235    1    7   17
ACCEL3                           DB1A STARTED      3256    5    23  41
DISPLAY ACCEL REPORT COMPLETE                                            
DSN9035I  -DB1A BEGIN OF DISPLAY FOR MEMBER: DB1B                        
---------------------------------------------                            
DSNX830I  -DB1B DSNX8CDA                                                 
ACCELERATOR                      MEMB  STATUS  REQUESTS ACTV QUED MAXQ   
-------------------------------- ---- -------- -------- ---- ---- ----   
ACCEL1                           DB1B STARTED     23456    1    0    2
ACCEL2                           DB1B STOPPED        47    0    0    0
ACCEL3                           DB1B STOPPED        92    0    0    2
DISPLAY ACCEL REPORT COMPLETE                                            
--------END OF DISPLAY FOR MEMBER: DB1B    --------                      
DSN9035I  -DB1A BEGIN OF DISPLAY FOR MEMBER: DB1C                        
---------------------------------------------                            
DSNX830I  -DB1C DSNX8CDA                                                 
ACCELERATOR                      MEMB  STATUS  REQUESTS ACTV QUED MAXQ   
-------------------------------- ---- -------- -------- ---- ---- ----   
ACCEL1                           DB1C STARTED       734    0    0    4
ACCEL2                           DB1C STARTED         2    0    0    0
ACCEL3                           DB1C STARTED        87    0    0    7
DISPLAY ACCEL REPORT COMPLETE                                            
--------END OF DISPLAY FOR MEMBER: DB1C    --------                      
DSN9035I  -DB1A BEGIN OF DISPLAY FOR MEMBER: DB1D                        
---------------------------------------------                            
DSNX830I  -DB1D DSNX8CDA                                                 
ACCELERATOR                      MEMB  STATUS  REQUESTS ACTV QUED MAXQ   
-------------------------------- ---- -------- -------- ---- ---- ----   
ACCEL1                           DB1D STARTED      9210    0    0    1
ACCEL2                           DB1D STOPPED         0    0    0    0
ACCEL3                           DB1D STOPPED        21    0    11  11
DISPLAY ACCEL REPORT COMPLETE                                            
--------END OF DISPLAY FOR MEMBER: DB1D    --------                      
DSN9022I  -DB1A DSNX8CMD '-DISPLAY ACCEL' NORMAL COMPLETION
Example 2: Displaying detailed information about specific accelerator servers
The following command displays detailed information about active accelerator servers ACCEL1 and ACCEL2 for data sharing member DB1D:
-DIS ACCEL(ACCEL1,ACCEL2)
     DETAIL
     LIST(ACTIVE)
     SCOPE(LOCAL)
     MEMBER(DB1D)

Start of changeThe output that is displayed depends on the accelerators that you are using. For example, the following output is displayed for IBM® DB2 Analytics Accelerator for z/OS V5 and earlier:End of change

ACCELERATOR                      MEMB  STATUS  REQUESTS ACTV QUED MAXQ
-------------------------------- ---- -------- -------- ---- ---- ----
ACCEL1                           DB1D  STARTED     9210    7    5    9
LOCATION=ACCELERATOR1 HEALTHY
DETAIL STATISTICS
  LEVEL = AQT05015
  STATUS = ONLINE
  FAILED REQUESTS                                    =        3
  AVERAGE QUEUE WAIT                                 =       99
  MAXIMUM QUEUE WAIT                                 =      400
  TOTAL NUMBER OF ACTIVE PROCESSORS                  =        4
  AVERAGE CPU UTILIZATION ON COORDINATOR NODES       =    45.00%
  AVERAGE CPU UTILIZATION ON WORKER NODES            =    40.00%
  AVERAGE DISK IO UTILIZATION                        =    10.00%
  NUMBER OF ACTIVE WORKER NODES                      =        2
  TOTAL DISK STORAGE                                 =    93000 MB
  DISK STORAGE IN USE FOR THIS DB2 SYSTEM            =       27 MB
  DISK STORAGE IN USE FOR ALL DB2 SYSTEMS            =       27 MB
  TOTAL CPU FOR REQUESTS FOR THIS DB2 SYSTEM         =       30 MS
  TOTAL CPU FOR DATA MAINTENANCE FOR THIS DB2 SYSTEM =      110 MS
  TOTAL CPU FOR REPLICATION FOR THIS DB2 SYSTEM      =        0 MS 
DISPLAY ACCEL REPORT COMPLETE                               
DSN9022I ) DSNX8CMD '-DISPLAY ACCEL' NORMAL COMPLETION