Backup Exec NDMP not performing FC direct backups
Created: 18 Oct 2011 | 3 comments
I need some help figuring out why Backup Exec is doing a three way NDMP backup instead of an FC direct backup. This is my situation:
I have a fiber channel switch. Connected to that switch is my tape drive (which is a Quantum i80 robotic library with 2 drives), the backup exec server and my NetApp. The NetApp has two heads, lets call them A and B.
The zoning on the FC switch has NetApp A in a zone with the BE server and the both tape drives. There's a second zone with NetApp B, the BE server and the two tape drives.
Under the devices tab in BE everything appears fine. The two drives are listed under the robotic library which is listed under the BE server. I have added the NetApps as NDMP storage so I see the robotic library/drives on the devices tab as well under the netapps.
With NetApp A, I get an FC direct backup with around 4000mb/sec. If I try to backup something from NetApp B, it appears to be sending the data over the network to NetApp A and then from NetApp A onto tape via fiber channel. To try and summarize:
NetApp A > FC direct to Tape
NetApp B > Network to NetApp A > NetApp A FC to Tape
I can't figure out why NetApp A would be able to go directly to tape but NetApp B sends the data to A first. This is killing performance and causing problems.
Any suggestions are appreciated.