On 03/31/10 18:35, Alfredo J. V. P. wrote:
> On Miércoles 31 Marzo 2010 23:23:47 Phil Stracchino escribió:
>> RAIT span/concat
>>
> RAID 0. Yes, but no disk involved. Tape drives instead.
No, actually, you would not want a RAID (or RAIT) 0 setup. Striping
data across devices of different sizes is always a bad idea. What you
want to do is create a virtual concat device, in which you logically
append the 12GB DDS3 drive to the 20GB DDS4 drive to create a virtual
32GB device. If you striped them, you'd end up with a fast virtual 24GB
device plus 8GB of wasted space.
Unfortunately, the only RAIT implementation I am currently aware of in
any backup software is in Zmanda.
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