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Re: rman compressed backup is much smaller but very slow

cichomitiko gmail

2006-08-02

Replies:

> Could someone shared their experieces on compressed
> backup, especially with big sized database.
Red Hat Enterprise Linux ES release 3 (Taroon Update 4)
Oracle Database 10g Release 10.2.0.2.0 SE
 
Not a big size database: 30GB (~18GB used), backed up on a NFS mounted drive (all filesystems are ext3 type).
 
full backup without compress: backup sets size ~13GB, elapsed 37min
full backup with compress:  backup set size < 2GB, elapsed 26min
 
BACKUP OPTIMIZATION OFF
PARALLELISM 1 (SE doesn't support parallelism > 1)
 
 
Regards
Dimitre
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