Hi All,

Following to global client backup performance issues on some new TSM server, 
which I suspect to be related to the workload induced on TSM instance by 
deduplication/compression operations, I would like to do some testing with a 
client, selectively disabling compression or deduplication, possibly both of 
them on it.

However, the TSM server has been configured to only make use of directory-based 
storage pools, which have been defined having deduplication and compression 
enabled.

Thus my question : is there any mean to configure a client, so that its data  
will not be compressed or deduplicated ?

>From my understanding, setting up "compression no" in the client option file 
>will be of no use, as the server will still be compressing the data at storage 
>pool level.
Likewise, setting up "deduplication no" in the client option file will refrain 
the client to proceed to deduplication, but the server still will.
The last remaining possibility  that I can think of, to disable deduplication, 
would be to make use of some "exclude.dedup" statement on client side, that 
would exclude anything subject to backup.

What are your thoughts ? Am I condemned to define new storage pools not enabled 
for deduplication and or compression to do such testing, or is there some other 
mean ?

Thanks a lot for appreciated feedback !

Cheers.

Arnaud

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