Hi,

one of the major issues is that tape drives, most notably older and cheaper 
drives, tend to 'misbehave'. Some send out a scsi reset after each dismount, 
causing your disk traffic to stop. And I've heard even worse stories.

Another thing is that modern drives have no problems moving 200 MB/s, so even a 
8 Gb/s HBA is no overkill. I would never use VIO with the TSM traffic, you need 
so big a VIO server, that an extra HBA is cheaper.

On 14 sep 2010, at 15:35, Mehdi Salehi wrote:

> Hi,
> It is always recommended to separate tape and disk traffic in TSM
> environments. How about when adapters are NPIV logical HBAs? Does it make
> sense to assign two logical adapters (one for disk and another for tape)
> from a single adapter port to an AIX partition? The adapter is an 8Gb/s FC
> or a 10Gb/s CNA.
> 
> Thank you,
> Mehdi



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Met vriendelijke groeten/Kind Regards,

Remco Post
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