On 05/01/2010 17:40, Phil Stracchino wrote:
> Brian Debelius wrote:
>    
>> I want to see if having disk storage on one sd process, and tape storage
>> on another sd process, would increase throughput during copy jobs.
>>      
> Actually, it'll decrease it rather drastically.  All the way to none.
>
> You see, at the present time you cannot copy or migrate from one SD to
> another.  Copy and migration operations can only occur between devices
> attached to a single SD, because SDs cannot yet communicate directly
> with one another, which they would need to do to perform inter-SD copies
> or migrations.
>
>
>    
Copy and migration? Could this be a way to help tidy up the SD is it's 
got a lot of failed jobs there? Copy all the current completed backups 
to a different set of volumes? Will historical information still be 
preserved?

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