If you are trying to see what is acting as a bottlneck in a restore and we 
are talking Solris then it might be worth trying :-
on the storage node recover some of the data to /tmp (memory) this will 
show the best speed you can expect to get from your tape drive. highlights 
the effects of interleaving.
repeat to /tmp on the client, shows the effect of the network/client speed 
not including disks.
repeat to dosk on client, shows the effect of the disk/filesystem.
I don't know if theere is an equivalent or substitute on wintel servers 
and this won't work if your client and storage nodes are different OSes.
Could be a case to raise a RFE for the reverse of bigasm.

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