Also, is there a diskpool? ie:

client->server[diskpool]->server[tapes]

If there's no diskpool in between the client and the tape drives, will be a
lot of stop/go writes to tape, resulting in about 1 MB/sec vs 10-25 MB/sec.

At least, that's true for LTO-1 drives. I've heard that LTO-2 drives better
handles this kind of situation.

-Dan