Hi Everybody,

I have a dedicated disk pool for one specific Oracle RMAN backup using 8 
channels of a database at 300Gb. The backup takes about 2 hours, but if I clean 
the cache on the pool, I will see no storage space usage until the channel 
session has ended. So, at the end of the backup, the storage pool usage will go 
from 0% to about 66%. My storage pool size is 310Gb and I don't enable 
compression. Two questions :

1) What is TSM doing with each channel's data being sent ? Is it buffering it 
somehow ?
2) Because my database is abouot 300Gb, why does the storage pool show 66% 
usage ? Shoudldn't it be more ?

Rich