Physical Disks on Controllers

[Michael Blinn]

I recently purchased a PE2900III with the PERC6/i  controller card. My 
idea was to have a split-backplane setup, with 2 mirrored drives on one 
controller for the OS, and then 5 in a RAID5 on the second controller.

After installing Ubuntu and OMSA3.3.0 from sara.nl I've found that this 
is not how the disks are configured. One one controller there are 3 
disks, and on another there are 4. This means that my RAID5 array spans 
two controllers (1 on controller 0, 4 on controller 1).

What are the implications of such a configuration? Speed limitations? 
Reliability? Redundancy? Is it possible to do the setup I describe 
above, or is there a 4-disk-per-controller limit?

Kindest regards,
 Michael Blinn

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