Thanks for the reply Kiran,

If i understand what you say

On my server i launch a

generate backupset node_name prefix_name devclass=DISK datatype=all

(The devclass=DISK was stocked on NAS)

I want to generate a backupset for each node, create daily or monthly and all 
stocked on a NAS (i don't know really i'am don't decide now^^)

In case of a client have a big problem i copy the backupset on external hard 
drive  and restaure with tsm client on his newc computer right ?

Regards, Mickael

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