How to configure my SCSI disk arrays

Hi,

I have an HP NetServer LP3 with at HP NetRaid SCSI controller. It has two disk arrays (one on each SCSI channel) with room for six disks in each. I have seven 9gb SCSI disks an five 36gb. How do I configure these disks. I would very much like to make the system disk a RAID 1. My own suggestion si as follow:

Disk Array A          Disk Array B
Sys1-9gb(RAID1)  Sys1-9gb(RAID1)
Data1-36(RAID5)  Data2-9gb(RAID5)
Data1-36(RAID5)  Data2-9gb(RAID5)
Data1-36(RAID5)  Data2-9gb(RAID5)
Data1-36(RAID5)  Data2-9gb(RAID5)
Data1-36(RAID5)  Data2-9gb(RAID5)

This will leave me with a system disk of 9gb, a data disk on approx. 140gb and a second data disk on approx 35gb.

The questions is:
  - Is this a smart configuration?
  - Is it smart to distribute the system disk accross two SCSI channels?

Thanks in advance,

Ten13
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Ten13Asked:
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chicagoanCommented:
your config looks ok, i assume you're putting your 36's and the balance of your 9's in raid 5.

it's standard practice to put mirrored disks on seperate channels, you hav a little redundancy should a channel fail and you have twice the bandwidth

you might consider using one of your 36's as a global hot spare

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RWrigleyCommented:
It all depends on what you want to do with the system.  The biggest problem with your proposed scenario is that you'll lose one of your logical drives if you lose a scsi channel.  Another problem is that you aren't optimizing your available bandwidth.  And as chicagoan points out, you don't have a hot-spare.  On the plus side, your configuration gives you nearly optimal hard drive capacity.  Question is, which is more important to you; capacity, performance or redundancy?  
chicagoanCommented:
If you set the scsi addresses not to overlap you can always pop one chain onto the other channel, though it's more likely you'd lose the whole controller
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