Hi list,
Got an interesting question (I think) J
We run on Netbackup version 5.1 mp5, most of our servers run Sun Solaris. Our master server has a disk-cache device attached. This is 10TB of disks divided in three separate LUN?s and filesystems. We have three LTO3-tapedrives, to which we ?flush? the disks to. The LTO3 drives are configured as HCART3 in NBU. We made three storage-nodes in NBU which are configured to use one LTO3 tape-drive.
But, and this is where my problem is, when NBU start to duplicate it still takes more then one LTO3-drive per disk-device. The problem is as soon as NBU start to read with more then one tape-drive the performance drops significant.
I need to find a way to prevent this. What I want is that one disk-device uses only one tape-drive.
Any ideas?
Regards,
Rob Dullaart
Senior Netbackup Specialist