Transferring huge amount of data

[abhaysk]

Just to save 1) Space, 2) I/O and, 3) FTP bandwidth

1- exp writes to a pipe and compress writes to the filesystem a already compressed file.

2) because of #1, you do a lot less I/O

3) because you get a compressed dump file you save network bandwidth during FTP

Also, during uncompress/imp you will save a lot of I/O.

Well point 1 & particularly 3 is all that is most important and techinically right too.

Point 2 may be incorrect, as you will still need to do LIO + lots of CPU to compress/uncompress.

Rgds
Abhay