NDMP backup of filer does not make use of multi-plexing?
Attemping to backup a couple netapp filers via Remote NDMP with data totaling ~14TB. The drives are NOT directly connected to the filers.
The filers were previously backed up by mounting each volume/qtree as NFS on the master server (solaris 10 T2000 NBU 6.5.4). Using NFS allowed us to spawn or split big volumes into several jobs, making use of multi-plexing, spreading across 8 drives. Since turning NDMP on, and using the same type of method, I'm finding that if I have 8 NDMP jobs, I need 8 drives. what good is NDMP? I know it is somewhat faster, but there is no way I can get all my volumes done 8 at a time.. Also the data is not supplied fast enough to LTO2 & LTO3 drives at only ones job per drive. Hopefully I'm missing something.
Any comments appreciated.