Identify the databases to perform incremental image copy

Before taking an incremental image copy (ICR), you must first identify which databases to perform an ICR.

About this task

If you would like to perform an ICR where your databases are offline, see Taking an incremental image copy of offline databases.
IMS 10 or later provides greater time precision for the ICR output than earlier versions.

Procedure

To list and identify which databases to take an ICR of, run either a LIST.RECON or LIST.HISTORY job.

Running these jobs is helpful when you want to select and define a specific time to perform ICR in your IMS Database Recovery Facility job.

A LIST.RECON job displays the RECON's current status and a formatted display of all records it contains. A LIST.HISTORY job provides a history-of-activity listing for DBDSs or DEDB areas.

For more information, see the IMS Database Recovery Control (DBRC) Guide and Reference.

In the following examples, an ICR is being performed on a HIDAM/VSAM database named DHVNTZ02.

Example: LIST.RECON job

In this example, a LIST.RECON job is being run to get a detailed DBRC report of DHVNTZ02.

//LISTRCON  EXEC PGM=DSPURX00,COND=EVEN        
//SYSPRINT DD SYSOUT=*                         
//RECON1   DD  DSN=IMSTESTL.IMS.RECON1,DISP=SHR
//RECON2   DD  DSN=IMSTESTL.IMS.RECON2,DISP=SHR
//RECON3   DD  DSN=IMSTESTL.IMS.RECON3,DISP=SHR
//SYSIN    DD *                                
  LIST.RECON                                   
/*

Example: LIST.HISTORY job

In this example, a LIST.HISTORY job is being run to get a detailed DBRC report of DHVNTZ02.

//LISTRCON  EXEC PGM=DSPURX00,COND=EVEN        
//SYSPRINT DD SYSOUT=*                         
//RECON1   DD  DSN=IMSTESTL.IMS.RECON1,DISP=SHR
//RECON2   DD  DSN=IMSTESTL.IMS.RECON2,DISP=SHR
//RECON3   DD  DSN=IMSTESTL.IMS.RECON3,DISP=SHR
//SYSIN    DD *                                
  LIST.HISTORY DBD(DHVNTZ02)           
/*

Example: Output

The following is an example of the output from the LIST.HISTORY or LIST.RECON job:

+----------------------------------------------------------
|Timeline for DBDS: DHVNTZ02 HIDAM                         
|                       USID=00000003   AUTHORIZED=00000003
|                    RECEIVE=00000000         HARD=00000003
+-Time------------+Events----+---+--+----------------------
|                 |IC        |   |  |                      
|                 |REORG     |   |US|Subsystem             
|                 |RECOV     |CA |ID|Logs and Allocs       
+-----------------+----------+---+--+----------------------
20.044 14:03:25.0  B              1      
20.044 14:09:14.4                    IMS1
20.044 14:10:00.4                 2  A   
20.044 14:10:01.5                 |  s   
20.044 14:10:59.5                 |  s   
20.044 14:12:15.0                 |  s   
20.044 14:12:56.2                 2  D   
20.044 14:12:56.7                    s   
20.044 18:24:41.8                 3  A   
20.044 18:24:42.8                 |  s   
20.044 18:25:37.5                 |  s   
20.044 18:27:19.3                 |  s   
+-----------------+----------+---+--+----------------------
+----------------------------------------------------------
|Timeline for DBDS: DHVNTZ02 HIDAM2                        
|                       USID=00000003   AUTHORIZED=00000003
|                    RECEIVE=00000000         HARD=00000003
+-Time------------+Events----+---+--+----------------------
|                 |IC        |   |  |                      
|                 |REORG     |   |US|Subsystem             
|                 |RECOV     |CA |ID|Logs and Allocs       
+-----------------+----------+---+--+----------------------
20.044 14:03:26.8  B              1
+-----------------+----------+---+--+----------------------