Executing the database recovery utility (pdrstr) also rolls back transactions which, although they are among the transactions to be recovered, will be invalidated. You cannot check the progress of this rollback processing even if you execute the pdls -d trn -a command. The KFPS02235-I message is not output, either.

You can, however, determine whether this rollback processing is taking place by checking the following messages, which are output by the database recovery utility:

• KFPR26281-I message
  If the processing detail shows Roll back, it indicates that a rollback has started or ended.
  
• KFPR26282-I message
  This message is output each time 5 gigabytes of unload log files or system log files have been loaded, and it shows the size of the files that have been loaded so far.