After adding datafiles, RMAN creates too many backupsets
Hello,
I have simple command BACKUP DATABASE FORMAT 'isrt_%U_%t' , without no additional parameters.Backup is performed to tape backup software (NetBackup) with one allocated channel only. Also SHOW ALL displays all parameters set as default.
As long as there were about 25 datafiles in database, RMAN created one (of two at most) backupsets for BACKUP DATABASE command. Now, we added about 40 additional datafiles as a preparation for partitioning. (Nevertheless they are not filled yet.) And since then, BACKUP DATABASE command creates about 15 backupsets. First backupset includes about 50 datafiles, and remaining backupsets include 1 datafile each.
Do you know any possible reason?
I have simple command BACKUP DATABASE FORMAT 'isrt_%U_%t' , without no additional parameters.Backup is performed to tape backup software (NetBackup) with one allocated channel only. Also SHOW ALL displays all parameters set as default.
As long as there were about 25 datafiles in database, RMAN created one (of two at most) backupsets for BACKUP DATABASE command. Now, we added about 40 additional datafiles as a preparation for partitioning. (Nevertheless they are not filled yet.) And since then, BACKUP DATABASE command creates about 15 backupsets. First backupset includes about 50 datafiles, and remaining backupsets include 1 datafile each.
Do you know any possible reason?
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