[Veritas-bu] storage nodes

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

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