Reporting on Backups and BackupSets
Could someone clarify the definition of a backupset.
I thought a backupset was a tag/stamp that represented an execution of a single backup or copy command; and consisted of pieces (physical rman files) that constituted the backup?
When I try reporting on Incremental Level 0 backups of my database, I get (for example):
SET_STAMP START_TIME DEVICE_TYPE B ELAPSED_HRS PIECES G_BYTES S
---------- ----------------- ----------------- - ----------- ---------- ---------- -
725799704 31-JUL-2010 11:01 SBT_TAPE D 3.33 10 181.67 A
725799704 31-JUL-2010 11:01 SBT_TAPE D 2.94 9 169.56 A
725799705 31-JUL-2010 11:01 SBT_TAPE D 5.16 9 168.77 A
726414642 07-AUG-2010 13:50 SBT_TAPE D 21.56 8 159.94 A
726414642 07-AUG-2010 13:50 SBT_TAPE D 21.56 8 159.94 A