Need terminator for one of the disk shelfs.

Dear fellas, I was recently involved in the moving of a netapp filer from a hosting facility to our office building, and during transportation, I lost the terminator that plugs into the port that looks like a serial-port on the back of the disk shelf. That port is labeled "output/terminator" on the back of disk shelf (I assume the casing actually housing the disks is called the disk shelf?)

Where can I find a replacement for this terminator? Would a standard retail store carry something like this? If so, which ones?

Any help appreciated. I've not tried running the filer without that terminator, does anyone know what would happen if I did? Do I stand to lose data?

Thanks

Robert Johannes Systems Administrator Kairos-Damango Internet Services Inc. 1300 Godward Street suite 3200 Minneapolis, MN 55413