Rman backs up only used blocks, so the size difference
Johnson
--- Raj Gopalan [EMAIL PROTECTED]
wrote:
DBAs
I have taken hot backup using RMAN. The total Size
of the Database is
5200MB(By Sum(byes) in Dba_data_files). Where us the
backup file size put
together is 4600MB.
Where am I
Hi,
It's all O.K., blocks that never been used aren't backuped by rman.
oli
[EMAIL PROTECTED] wrote
DBAs
I have taken hot backup using RMAN. The total Size of the Database is
5200MB(By Sum(byes) in Dba_data_files). Where us the backup file size put
together is 4600MB.
Where am I missing
I believe that RMAN only backs up blocks that have been allocated to an oracle object
- index, segment, table, etc. If the block is in a datafile but not in use by an
oracle object (that is, the block is free), then RMAN doesn't backup those blocks.
Steve
[EMAIL PROTECTED] 04/30/01 12:25PM
