The correct procedure for the DB2 recovery command

The following articles mainly describe the actual operation steps of the DB2 recovery command. If you want to know the actual operation steps of the DB2 recovery command, the following articles will unveil its secrets. The following is a detailed description of the articles. I hope you can learn from them.

Command

Offline and online full backup and Incremental backup of DB2

1. Full offline backup

1) first, make sure that no user uses DB2:

$ DB2 list applications for db sample

2) Stop the database and restart it to disconnect all connections:

 
 

  
  
DB2stop force  
  
  
DB2start 
 
 

3) execute the BACKUP command: Use TSM as the backup media)

 
 

  
  
DB2 backup db sample use tsm 
 
 

If the backup is successful, a timestamp is returned.

4) check that the backup is successful:

DB2 list history backup all for sample. You can see that this backup record is missing.

The return value can also be seen in the DB2adutl query command.

5) Remarks:

First, run the backup DB2 recovery command on the node where the catalog tablespace is located.

Command, and then perform this operation on another node.

2. Online backup:

1) First, open the database configuration parameters that support online backup:

DB2 update db cfg for sample using userexit on Enable User exit

DB2 update db cfg for sample using logretain on enable archiving logs

DB2 update db cfg for sample using trackmod on enable Incremental Backup

(Each Node must be set separately)

After these parameters are enabled, the database is in the backup pending state and requires offline full backup of the database. Perform full offline backup. Refer to the above command.

2) The online backup command is as follows:

 
 

  
  
DB2 backup db sample online use tsm 
 
 

If the backup is successful, a timestamp is returned.

3) You can also use DB2adutl and DB2 list history to view backup records.

4) Remarks:

Similarly, this operation is performed on each node.

3. Online Incremental Backup

1) when three required parameters are enabled, perform Incremental Backup:

 
 

  
  
DB2 backup db sample online incremental use tsm 
 
 

If the backup is successful, a timestamp is returned.

2) You can also use DB2adutl and DB2 list history to view backup records.

3) There is also a delta backup:

 
 

  
  
DB2 backup db sample online incremental delta use tsm 
 
 

The difference between the two backups is similar to the Incremental and Cumulative modes of Oracle Exports. The incremental method of DB2 corresponds to the cumulative mode of oracle, while the delta mode of DB2 corresponds to the incremental mode of oracle.

4) Remarks:

Similarly, this operation is performed on each node.

The above content is an introduction to the DB2 recovery command. I hope you will get something better.